Hot Rod Garden Tractor Pullers Association

Sanctioning Classes, Rules and Regulations

This website was updated 2/13/18. Changes made to these rules with approval by members (pullers) of the HRGTPA. Click or tap HERE or HERE to refresh or reload this web page to see any changes.

If you have any questions about these rules, and/or if you're interested in participating with the HRGTPA, please contact: Brent Miller (President), 12091 N. Route B., Hallsville, Missouri 65255 | Phone: 1-573-424-6217. | E-mail: a-1lawncareandlandscaping@outlook.com | Secretary/Treasurer: Valerie Miller | Safety Inspector: Cody Hultz | Sled Operator: Martin Wolbeck | HRGTPA Home Page | Pulling Event Schedule | Membership Registration Form | Prize Money Payback Charts | Points Standings


LIST OF SANCTIONED CLASSES:

  1. 900 lb. STOCK GARDEN TRACTOR, Up to 10hp [Jump down to rules for this class]
  2. 1000 lb. STOCK GARDEN TRACTOR, Up to 14hp [Jump down to rules for this class]
  3. 1050 lb. HOT STOCK GARDEN TRACTOR, Up to 16hp [Jump down to rules for this class]
  4. 1000 lb. / 950 lb. OUTLAW GARDEN TRACTOR [Jump down to rules for this class]
  5. 1050 lb. TWIN CYLINDER GARDEN TRACTOR, Up to 25hp [Jump down to rules for this class]
  6. 1050 lb. 16hp MISSOURI SUPER STOCK GARDEN TRACTOR [Jump down to rules for this class]
  7. 1050 lb. 50.5 CID MODIFIED GARDEN TRACTOR [Jump down to rules for this class]
  8. 1150 lb. MOTORCYCLE ENGINE GARDEN TRACTOR [Jump down to rules for this class]
  9. 1300 lb. OPEN GARDEN TRACTOR [Jump down to rules for this class]
  10. 1400 lb. OPEN AUTOMOTIVE ENGINE GARDEN TRACTOR (MINI-ROD) [Jump down to rules for this class]
  11. 1550 lb. OPEN AUTOMOTIVE ENGINE GARDEN TRACTOR (MINI-ROD) [Jump down to rules for this class]

It takes a minimum 2 of the same type pulling vehicles to make a class. Additional class(es) will be made for garden tractors from other pulling associations if 2 or more matching tractors of any particular class show up, and the HRGTPA will adopt the other association's sanctioning rules for the additional class(es). If only one type of tractor show up and there is no other matching tractor to compete against, it will have to pull for exhibition only. And due to local community involvement, off the lawn stock garden tractors are always welcomed to participate at any HRGTPA pulling event. They can pull for competition or exhibition only.

PULLER MEMBERSHIP and INSURANCE:

HRGTPA membership dues for one year is $25.00 per individual, and $50.00 per family. This helps cover the pulling insurance costs and various other expenses for operations of the club. HRGTPA has $1,000,000 insurance coverage. The pulling insurance covers the audience/spectators of the HRGTPA pulls only (spectator liability), and not the participants or pullers. Any left-over money collected at the end of every year will be returned to the pullers in one form or another and/or be used to pay the insurance for the following year. Please Click or tap here to print-out and fill out the Membership Registration Form. Click or tap here to read and print-out our insurance policy. Participants under 16 years old - Parents must read, fill out and sign a responsibility waiver. Click or tap here for the RELEASE AND WAIVER OF LIABILITY AND INDEMNITY AGREEMENT and MINOR RELEASE AND WAIVER OF LIABILITY AND INDEMNITY AGREEMENT (Requires Adobe Acrobat Reader and Google Chrome web browser for a faster download.)

PULLING/HOOK/ENTRY FEES:

Hook/Entry fees is $13.00 per pull. $10.00 will go toward the hook fee, and $3.00 will go toward the sled and equipment maintenance. To make prize money payback easier, please pay entry fee with $1 bills, $5 bills and very few $10 bills. Please show up one hour before pull starts for registration, sign-up and weigh-in. Prize money per class will be paid back 100% in cash, as follows: Two entries per class pays 2 places: 1st receives 67%; 2nd receives 33% of the purse. Three entries per class pays up to 3 places: 1st receives 50%; 2nd receives 30%; 3rd receives 20% of the purse. Four entries per class pays up to 4 places: 1st receives 40%; 2nd receives 30%; 3rd receives 20%; 4th receives 10% of the purse. Five or more entries per class pays up to 5 places: 1st receives 30%; 2nd receives 25%; 3rd receives 20%; 4th receives 15%; 5th receives 10% of the purse. Click or tap here for Prize Money Payback Charts. Prize money will be paid back at the pulls if time permits. If there is not enough time, money will be paid out at the next pull, or mailed within 2 weeks of pull. All exhibition pulls will take place at the end of the pulling event.

POINTS:

Points go to the pulling vehicle and registered driver. The pulling vehicles will receive points for participating in sanctioned or sponsored pulls in the following manner: 5 points to show, 1 point to hook. If your pulling vehicle is disabled and you have it at a pull, please inform the secretary so you can receive your points for showing up at the pull. Placing points are as follows: 1st place - 10 points; 2nd place - 9 points; 3rd place - 8 points; 4th place - 7 points; 5th place - 6 points; 6th place - 5 points; 7th place - 4 points; 8th place - 3 points; 9th place - 2 points; 10th place - 1 point. 11th place to end of class will receive no points.

EVENT PROCEDURES:

  1. All pulls are to be held on dirt or clay tracks only. No asphalt or concrete pulling.
  2. No trophies or wall plaques will be given by HRGTPA at sanctioned pulls. Sponsors of events may award trophies or wall plaques if they choose.
  3. Once the HRGTPA rules are voted in at the yearly meeting, they shall not be changed or altered during that year's pulling season. No favoritism will be offered to any puller. ONLY safety issues would warrant change during the pulling season.
  4. All pullers are encouraged to attend driver's meeting prior to start of the pulling event.
  5. Pullers, helpers or visitors shall not stand along side of track and block the sponsors', judges' or spectators' view of pulling vehicles competing along entire length of track.
  6. Before hooking and after unhooking from sled, driver shall operate pulling vehicle at such a safe, slow speed as to be in full control at all times.
  7. During pull, driver must have at least one hand on steering wheel at all times.
  8. All pulls shall start with a tight and untwisted sled chain, no intentional jerking will be permitted. If chain is twisted, pulling vehicle will be disqualified.
  9. Any puller attempting to pull before flag person displays the green flag will be subject to disqualification.
  10. Blade-off tractor will maintain smooth track conditions after each tractor pulls to ensure fair competition for all entries.
  11. As soon as each pulling vehicle have finished pulling, they shall exit the track and return to pit area.
  12. Only the flag person is allowed within the track boundary lines during the pull, unless driver of pulling vehicle is under the age of 16 and one adult is required to be on the track, but will be allowed to touch the pulling vehicle while it is pulling.

Sign-In:

  1. Table will be available to sign-in pulling vehicles/pullers in one hour before scheduled pull time.
  2. Random drawing of a number by each puller will determine the line-up position for each pulling vehicle.
  3. All pullers will sign-in with the name of puller and name of pulling vehicle.
  4. Sign-in will close 15 minutes before the scheduled time of pull. Exceptions will be made in case of road emergency and evaluated on case by case basis with approval of the President of the association.

Line Up List (to avoid delays):

  1. Pullers will be responsible to check the line-up list in the order of their pulling vehicle(s) for each class.
  2. 1st class will start lining up and getting ready to weigh in 15 minutes before the scheduled start time.
  3. 1st puller in the class will be weighed and ready to hook by the start time next puller will be ready to weigh.
  4. All pulling vehicles in a class shall be in-line in the order of the line-up position and ready to pull by the time the class starts.

Scales:

  1. No one under the age of 18 will be allowed to operate the HRGTPA scales.
  2. Scales will be placed on flat, level surface in close proximity to sled.
  3. Scales will open one hour before scheduled pull time for operators to pre-check the weight of their pulling vehicle and make necessary adjustments.
  4. Scales will close to all but the class pulling 15 minutes before the first class starts to allow the pulling vehicles sufficient time to line up for the official weigh-in just before pulling.
  5. Weight bar extensions must be pushed in or removed before crossing the scales.
  6. Zero tolerance will be allowed on weight limit. Pulling vehicles will be weighed just prior to hooking to the sled. Pulling vehicles pulling light (under weight limit) will be the operator option.

General Rules for Pulling Sled:

  1. Miller's self-propelled sled will be used at all HRGTPA pulls.
  2. No one under the age of 18 will be allowed to operate the HRGTPA sled.
  3. The small steering wheels (toward front of sled) shall remain in the most upright position at all times when pulling vehicles are hooked to sled. An indicator light on the right side of the sled operator and the main red light will illuminate/flash when the wheels/tires are lowered at any time.
  4. An indicator light on the left side of the sled operator will illuminate/flash while the weight box control is disengaged.
  5. The weight box travel distance speed and/or any added weight to the sled shall remain as is at all times when a class of pulling vehicles are hooked to the sled. If necessary, regearing of the weight box travel distance speed and/or added weight to the sled will be made as classes of pulling vehicles change.
  6. Miller's sled has a powerful electric motor (6 volt Ford tractor starter motor) to pull the killswitch using a push button switch next to the operator on the pulling vehicle in case pulling vehicle goes out of control or hitch and/or chain breakage.
  7. The HRGTPA will provide two (2) working fire extinguishers located inside front shield of sled. Fire extinguisher on pulling vehicles is optional.

General Rules for Pulling Vehicles:

  1. The first puller in each class is the test puller, this puller can accept or decline the pull only while still hooked to the sled. The puller must notify the flag person (and secretary) with a thumb up or thumb down at this time and have the flag person inform the secretary if they wish to re-pull in the 3rd or last position of that class.
  2. Pulling vehicle may step up a class as long as it meets the requirements of that class and the President and Head Safety Official approve the move. Pulling vehicles may not step down a class.
  3. If all pulling vehicles have pulled and a pulling vehicle is still not in position, the pulling vehicle will have 3 minutes to get into position or be disqualified.
  4. If the 1st pulling vehicle in a class goes out of bounds at any point along the track, the puller still has the option to re-pull.
  5. Any pulling vehicle that pull 75 feet or less have the option of a second pull and must tell the flag person at the time of the unhook if they wish to pull again, and if they will move to pull in 3rd or last position. The 75 foot option is determined by very front of sled, not any part of pulling vehicle.
  6. If a driver raises his/her hand to indicate that they want to stop and re-pull before the 75 foot line and the front of sled coasts past the 75 foot line, the pulling vehicle will be allowed to re-pull.
  7. If the first two pullers in a class goes out the gate, the weight box will be regeared or additional weight will be placed on sled. The class will restart, with the 1st puller having the option to be the 1st hook or drop to the last position in their class to allow for engine cooling.
  8. Pullers has the option to re-pull if the pulling vehicle goes out of bounds less than the 75 foot line.
  9. Tractor will be disqualified if it goes out of bounds of the track past the 75 foot line, or if any part of pulling vehicle tire touches boundary line. Flag person's decision will be final on all out-of-bounds ruling.
  10. All weights, weight brackets or boxes must be safely secured to pulling vehicle and not extend beyond rear tires. Any weights falling off pulling vehicle or front weight bar while hooked to sled will be cause for disqualification. If any weight(s) or part of pulling vehicle falls off tractor during the pull, the tractor will be disqualified. There is no distance consideration, the tractor will be disqualified. Exception: The 1st puller in the class will be allowed to refuse the pull and re-pull in the 3rd or last place of the class.
  11. If two or more pullers goes out the gate for a full pull, a pull-off will be held after the last pulling vehicle in that class has pulled. The puller will only hook once, and there will be no options to re-hook in the pull-off. I.E. In a pull-off, if pulling vehicle only pulls a distance of 70 feet, that distance will be recorded.
  12. If there is a tie for first place, there will be a pull-off to determine the winner.
  13. If there is a tie for second place, they will split the 2nd and 3rd place money 50%.
  14. The pull for the pulling vehicle will not end until the pulling vehicle is unhooked from the sled.
  15. Unhooking will not occur until the forward motion of the sled stops or when the front of the sled goes beyond the end of the track (out of the gate).
  16. Flag person (and pullers) should hold hole-digging by the pulling vehicle tires to a minimum.
  17. The driver must remain seated at all times while pulling. Can slide side to side on seat, but no raising out of seat.
  18. Drivers must have at least on hand on steering wheel at all times while pulling.
  19. In case of chain or hitch breakage, flagman shall stand to one side of the pulling vehicle while going down the track, and not directly in front of it. This will be strictly enforced!
  20. Tractor will be disqualified if attempting to launch at the starting line before the green flag is displayed by the flagman.
  21. All pulling vehicles must be operated in a safe manner on the track and slow speed in the pit area at all times.
  22. Flag person must be minimum 18 years of age and be familiar with all HRGTPA rules.
  23. All pulling vehicle pullers/drivers must wear the required safety equipment. (See safety requirements and special requirements in each individual class.)
  24. To encourage sponsor approval, spectator attendance and family participation, all pullers, helpers and visitors shall show good sportsmanship. All drivers should be clean in appearance and neatly attired. Pulling vehicles should be clean and painted. There shall be no loud profanity, arguments or fighting by the pullers at any pull or meeting. Anyone acting in such a manner or displaying non-sportsmanship-like conduct will be asked to leave. This will be strictly enforced at all pulls and official meetings!
  25. Pullers will refrain from consuming alcoholic beverages and/or be under the influence of illegal drugs, before and during any sanctioned pulling event or official meeting. Pullers shall not smoke while pulling. This will be strictly enforced at all pulls and meetings.
  26. Any pulling vehicle performing an exhibition pull must pass a safety inspection to be eligible to pull, pull will be held at the end of the entire pulling event, and will be charged $5.00 each.
  27. Any violations of the above rules will be subject to protest, disqualification or ineligibility to pull.

Inspection and Safety Requirements for All Pulling Vehicles:

  1. A DOT-approved safety helmet is mandatory in all classes.
  2. Safety Officers will inspect all pulling vehicles at the practice/test pulls or before allowing a pulling vehicle to pull at the first pull attended. Pulling vehicle will be marked and signed off by the safety official and puller to verify it passed inspection. If a pulling vehicle doesn't pass the safety/tech inspection, it will not be allowed to pull. NO EXCEPTIONS!
  3. All pulling vehicles must have a working break-away killswitch attached to the rear of the pulling vehicle and must be easily accessible. Engine must die immediately when plug is pulled.
  4. All pulling vehicles must have wheelie bars, either minimum 3" square skid plates or minimum 1" wide x 5" diameter wheels, located on either side of the drawbar, not to interfere with the hitching of the sled chain. Rear edge of skid plates or wheels are to be no less than 5" behind rear most point of rear tires and bottom of skid plates or wheels no more than 5" above the ground. Wheelie bars must be able to support the rear weight of the pulling vehicle.
  5. Must have sled bump bars incorporated into the wheelie bar braces. Must keep sled from hitting dolly wheels or pads of anti-tip device.
  6. All drawbars are to be constructed of no less than 3/16" in thickness and no more than 3/4" in thickness and must have a minimum 1-1/2" opening for hook with no more than 3/4" from front of opening to the back edge of opening. All drawbars must be stationary in all directions and made of steel.
  7. All throttles must be spring loaded. Engine must automatically return to idle when pressure is released from throttle device.
  8. Garden tractors: Flywheel and starter pulley must be made of billet steel or aluminum on engines running at wide open throttle. Crankshaft must have a bolt and flat washer in PTO end to keep pulley from sliding off. No stamped steel pulleys on horizontal shaft engines allowed.
  9. Starter/generator pulleys and belts must be shielded with minimum .060" thickness steel or .090" thickness aluminum.
  10. No stamped steel pulleys on horizontal shaft engines allowed.
  11. Starter side of block must be shielded with minimum .060" steel or .090" aluminum. Shield must be securely fastened to top of block down to frame of tractor and cover entire height of block and width of crankcase.
  12. All unrestricted exhaust must discharge vertically and be securely attached, unless muffler is used.
  13. All tractors must have clutch and flywheel shielded 360°. The clutch shielding must be minimum 1/8" steel or 3/16" aluminum.
  14. All engines must have a scatter shield opposite camshaft side of the engine; must be minimum .060" steel or .090" aluminum.
  15. Shifting will not be allowed.
  16. Tractors must be equipped with working brakes.
  17. Steering on all pulling vehicles must not have excessive looseness or "sloppiness". Steering box gears must be adjusted "snug" and tie rod ends/ball joint ends must be in good condition or pulling vehicle will not pass safety inspection.
  18. Engine cylinder must be securely "strapped" or fastened to crankcase to prevent cylinder separation. Exceptions: 900 lb. Stock class, aftermarket, motorcycle and automotive engines.
  19. Fuel lines and hoses must be in good condition on all pulling vehicles, including all local [stock] garden tractors. No dry-rotted or weather-cracked fuel hoses, leaking fuel hoses or lines and/or fittings, steel braided fuel hose covers allowed. Gas cap must fit securely on fuel tank. No exceptions!
  20. No pressurized fuel tanks, no methane, propylene oxide or nitrous oxide allowed in any class.
  21. No weights to extend beyond rear tires.
  22. Rear fenders must extend over tires minimum 4" and shield the operator from seat to foot rest with minimum width of 4". This rule is to prevent puller's foot being pulled in by the tire.
  23. Seat must have minimum 3" tall 45° angle rear support to prevent puller from sliding off seat if sled bumps pulling vehicle. All plastic seats must have a metal frame.
  24. All drivers must wear a shirt, long pants and closed-in shoes. (Jacket and pants or one piece coverall type.) Fire suits are mandatory if burning methanol fuel. Fire suit must be worn properly zipped, snapped and all loose ends in place. If not, pulling vehicle and driver will not be allowed to pull.
  25. Any violations of the above requirements will be subject to protest, disqualification or ineligibility to pull.


900 lb. STOCK GARDEN TRACTOR CLASS REQUIREMENTS: Top of page

  1. Age Limit: 16 years or under. If driver turns 17 during pulling season, they will be allowed to pull in this class the remainder of the year.
  2. A DOT-approved safety helmet is mandatory in this class.
  3. Drivers 7 years old or under must have a parent or responsible adult walking beside tractor during the pull with a remote OFF/ON switch in hand to kill the engine.
  4. Maximum weight limit is 900 lb., including tractor, weights, driver and helmet.
  5. Any type pump gas with alcohol no greater than 10% allowed. No E30, E85, methanol or nitromethane permitted. Fuel subject to water test.
  6. Engine: 8hp and under OHV or 10hp and under flathead, air-cooled, lawn and garden-type of engine only, single cylinder flathead. Engine blocks must have an OEM stock appearance. Engines must be factory productions or OEM replacement with factory deck height.
  7. Engine requirements:
    1. Engines will be limited to 4,000 rpm with working governor to regulate engine speed.
    2. Cylinder bore limited to .030" oversize, including normal wear.
    3. May run any camshaft with increased duration but maximum of .325" valve lift.
    4. Valves must be stock diameter.
    5. Intake and exhaust ports may be enlarged and polished.
    6. Must have stock stroke, but can have maximum of .005" increase in length of stroke for crank journal undersize regrinding.
    7. May run stock or billet connecting rod with bearing inserts.
    8. Must run stock cylinder head. No welded-up combustion chamber.
    9. Must run externally stock-appearing carburetor with no bottom adjuster.
    10. No velocity stacks or carburetor extensions allowed. Use of one 3/16" thickness heat-isolator gasket permitted.
    11. Must have OEM factory type ignition components. Exception: Can run adjustable GM (Chevy) points on side of block. Points must be covered or shielded to prevent risk of fire. Can run Kohler Breakerless Ignition or Magnum solid state ignition. No custom crank trigger ignition systems allowed.
    12. Can run stock flywheel with shortened fins. Steel flywheel is optional. Crankshaft must have a bolt and washer in PTO end to keep starter pulley from sliding off.
  8. Mechanical or electric fuel pumps allowed.
  9. May alter gear ratio.
  10. Maximum tire size is 26-12.00x12. No dual tires, tire studs, cleats or paddle tires allowed. No four-wheel-drives permitted.
  11. Maximum drawbar/hitch height is 13" with driver positioned in seat. Will be measured while on scale platform.
  12. Maximum wheel base length of garden pulling tractor shall be no more than 56" from center of rear axle to center of front axle, and maximum length of tractor to be no more than 96" from center of rear axle forward including end of extended weight bar. Pulling vehicle must fit on scales as they are set up to weigh and pull. (Scale platform is 8 feet in length.)
  13. Any violation of the above requirements will be subject to protest or disqualification.
  14. See: SAFETY REQUIREMENTS FOR ALL TRACTORS for additional setup requirements.


1000 lb. STOCK GARDEN TRACTOR, Up to 14hp CLASS REQUIREMENTS: Top of page

  1. Maximum weight limit is 1,000 lb., including tractor, weights, driver and helmet.
  2. A DOT-approved safety helmet is mandatory in this class.
  3. Any type pump gas with alcohol no greater than 10% allowed. No E30, E85, methanol or nitromethane permitted. Fuel subject to water test.
  4. Engine: Up to 14hp flathead, air-cooled, lawn and garden-type of engine only, single cylinder. Engine blocks must have an OEM stock appearance. Engines must be factory productions or OEM replacement with factory deck height.
  5. Engine requirements:
    1. Engines are limited to 4,000 RPM maximum.
    2. Cylinder bore limited to .030" oversize, including normal wear.
    3. May run any camshaft with increased duration but maximum of .325" valve lift.
    4. Valves must be stock diameter.
    5. Intake and exhaust ports may be enlarged and polished.
    6. Must have stock stroke, but can have maximum of .005" increase in length of stroke for crank journal undersize regrinding.
    7. May run stock or billet connecting rod with bearing inserts.
    8. Must run stock cylinder head. No welded-up combustion chamber.
    9. Must run externally stock-appearing carburetor with no bottom adjuster.
    10. No velocity stacks or carburetor extensions allowed. Use of one 3/16" thickness heat-isolator gasket permitted.
    11. Must have OEM factory type ignition parts. Exception: Can run adjustable GM (Chevy) ignition points on side of block. Ignition points must be covered or shielded to prevent risk of fire. Can run Kohler Breakerless Ignition or Magnum solid state ignition. No custom crank trigger ignition systems allowed.
    12. Can run stock flywheel with shortened fins. Steel flywheel is optional. Crankshaft must have a bolt and washer in PTO end to keep starter pulley from sliding off.
  6. Mechanical or electric fuel pumps allowed.
  7. May alter gear ratio.
  8. Professional cut (molded) V-tread tires are allowed.
  9. Maximum tire size is 26-12.00x12. No dual tires, tire studs, cleats or paddle tires allowed. No four-wheel-drives permitted.
  10. Maximum drawbar/hitch height is 13" with driver positioned in seat. Will be measured while on scale platform.
  11. Maximum wheel base length of garden pulling tractor shall be no more than 56" from center of rear axle to center of front axle, and maximum length of tractor to be no more than 96" from center of rear axle forward including end of extended weight bar. Pulling vehicle must fit on scales as they are set up to weigh and pull. (Scale platform is 8 feet in length.)
  12. Any violation of the above requirements will be subject to protest or disqualification.
  13. See: SAFETY REQUIREMENTS FOR ALL TRACTORS for additional setup requirements.


1050 lb. 16hp HOT STOCK GARDEN TRACTOR CLASS REQUIREMENTS: Top of page

  1. Maximum weight limit is 1,050 lb., including tractor, weights, driver and helmet.
  2. A DOT-approved safety helmet is mandatory in this class.
  3. Any type pump gas with alcohol no greater than 10%. No E30, E85, methanol or nitromethane permitted. Fuel subject to water test.
  4. Engine: Up to 16hp flathead, air-cooled, lawn and garden-type of engine only, single cylinder flathead. Engine blocks must have an OEM stock appearance. Engines must be factory productions or OEM replacement with factory deck height.
  5. Engine requirements:
    1. Engines will be ran at wide open throttle. Engine may have working governor, if desired.
    2. Cylinder bore limited to .030" oversize, including normal wear.
    3. May run any camshaft with increased duration but maximum of .325" valve lift.
    4. Valves must be stock diameter.
    5. Intake and exhaust ports may be enlarged and polished.
    6. Must have stock stroke, but can have maximum of .005" increase in length of stroke for crank journal undersize regrinding.
    7. May run stock or billet connecting rod with bearing inserts.
    8. May run stock, recast or billet cylinder head.
    9. Must run externally stock-appearing carburetor. Bottom adjuster optional.
    10. No velocity stacks or carburetor extensions allowed. Use of one 3/16" thickness heat-isolator gasket permitted.
    11. Must have OEM factory type ignition parts. Exception: Can run adjustable GM (Chevy) points on side of block. Points must be covered or shielded to prevent risk of fire. Can run Kohler Breakerless Ignition or Magnum solid state ignition. No custom crank trigger ignition systems allowed.
    12. Flywheel and starter pulley must be made of billet steel or aluminum. Crankshaft must have bolt and washer in PTO end to keep pulley from sliding off.
  6. Mechanical or electric fuel pumps allowed.
  7. May alter gear ratio.
  8. Maximum tire size is 26-12.00x12. No dual tires, tire studs, cleats or paddle tires allowed. No four-wheel-drives permitted.
  9. Maximum drawbar/hitch height is 13" with driver positioned in seat. Will be measured while on scale platform.
  10. Maximum wheel base length of garden pulling tractor shall be no more than 56" from center of rear axle to center of front axle, and maximum length of tractor to be no more than 96" from center of rear axle forward including end of extended weight bar. Pulling vehicle must fit on scales as they are set up to weigh and pull. (Scale platform is 8 feet in length.)
  11. Any violations of the above requirements will be subject to protest, disqualification or ineligibility to pull.
  12. See: SAFETY REQUIREMENTS FOR ALL TRACTORS for additional setup requirements.


1000 lb. / 950 lb., OUTLAW GARDEN TRACTOR CLASS REQUIREMENTS: (Consists of 16hp Stock Altered, and 30 Cube; Each tractor follows it's own established rules.) Top of page


1050 lb. 16hp MISSOURI SUPER STOCK GARDEN TRACTOR CLASS REQUIREMENTS: Top of page

  1. Maximum weight limit is 1,050 lb., including tractor, weights, driver, helmet and fire suit.
  2. A DOT-approved safety helmet is mandatory in this class.
  3. Open to any lawn and garden single cylinder, flat head, air cooled naturally aspirated engine up to 16hp. No motorcycle engines allowed.
  4. Engine cylinder bore limited to .080" oversize, including wear.
  5. Pump gas or methanol fuel only. No nitromethane allowed.
  6. Must have stock stroke, but can have .005" increase in length of stroke for crank journal undersize regrinding.
  7. Any type ignition system allowed. Ignition points must be covered or shielded to prevent risk of fire.
  8. Aftermarket blocks allowed.
  9. Steel flywheel mandatory.
  10. Crankshaft and camshaft must be in original position.
  11. Must maintain original head bolt pattern.
  12. One externally stock-appearing carburetor with a maximum 1.2" venturi.
  13. Maximum tire size is 26-12.00x12. No dual tires, tire studs, cleats or paddle tires allowed. No four-wheel-drives permitted.
  14. Maximum drawbar/hitch height is 13" with driver positioned in seat. Will be measured while on scale platform.
  15. Maximum wheel base length of garden pulling tractor shall be no more than 56" from center of rear axle to center of front axle, and maximum length of tractor to be no more than 96" from center of rear axle forward including end of extended weight bar. Pulling vehicle must fit on scales as they are set up to weigh and pull. (Scale platform is 8 feet in length.)
  16. Any violations of the above requirements will be subject to protest, disqualification or ineligibility to pull.
  17. See: SAFETY REQUIREMENTS FOR ALL TRACTORS for additional setup requirements.


50.5 CID MODIFIED GARDEN TRACTOR CLASS REQUIREMENTS: Top of page

  1. Maximum weight limit is 1,050 lb., including tractor, weights, driver, helmet and fire suit.
  2. A DOT-approved safety helmet is mandatory in this class.
  3. Pump gas or methanol fuel only. No nitromethane allowed.
  4. Engine: Single cylinder, flathead, air cooled, naturally aspirated. Maximum cubic inch displacement is 50.5. CID. No motorcycle engine allowed.
  5. Crankshaft and camshaft must be in original position.
  6. Must retain original head bolt pattern.
  7. Open carburetion or fuel injection allowed.
  8. Billet steel or aluminum flywheel and/or starter pulley required.
  9. Any type of ignition system allowed. Ignition points must be covered or shielded to prevent risk of fire.
  10. Maximum tire size is 26-12.00x12. No dual tires, tire studs, cleats or paddle tires allowed. No four-wheel-drives permitted.
  11. Maximum drawbar/hitch height is 13" with driver positioned in seat. Will be measured while on scale platform.
  12. Maximum wheel base length of garden pulling tractor shall be no more than 56" from center of rear axle to center of front axle, and maximum length of tractor to be no more than 96" from center of rear axle forward including end of extended weight bar. Pulling vehicle must fit on scales as they are set up to weigh and pull. (Scale platform is 8 feet in length.)
  13. Any violations of the above requirements will be subject to protest, disqualification or ineligibility to pull.
  14. See: SAFETY REQUIREMENTS FOR ALL TRACTORS for additional setup requirements.


1050 lb. TWIN CYLINDER GARDEN TRACTOR Up to 25hp CLASS REQUIREMENTS: Top of page

  1. Maximum weight limit is 1,050 lb., including tractor, weights, driver and helmet.
  2. A DOT-approved safety helmet is mandatory in this class.
  3. Class is open to flatheads or V-twin engines.
  4. Maximum 25hp factory rated horsepower. Open rpms.
  5. Steel flywheel mandatory.
  6. Any type pump gas with alcohol no greater than 10% allowed. No E30, E85, methanol or nitromethane permitted.
  7. Engine allowed to have aftermarket pistons or welded-up OEM pistons and billet connecting rods w/bearing inserts.
  8. Maximum .050" cylinder overbore.
  9. No porting or polishing.
  10. Single barrel externally stock-appearing carburetor.
  11. If running a 25hp Kohler Command engine, a 25hp or under intake manifold must be used.
  12. Stock size valves, can use roller rocker arms.
  13. Any type of ignition system allowed.
  14. Maximum tire size is 26-12.00x12. No dual tires, tire studs, cleats or paddle tires allowed. No four-wheel-drives permitted.
  15. Maximum drawbar/hitch height is 13" with driver positioned in seat. Will be measured while on scale platform.
  16. Maximum wheel base length of garden pulling tractor shall be no more than 56" from center of rear axle to center of front axle, and maximum length of tractor to be no more than 96" from center of rear axle forward including end of extended weight bar. Pulling vehicle must fit on scales as they are set up to weigh and pull. (Scale platform is 8 feet in length.)
  17. Any violations of the above requirements will be subject to protest, disqualification or ineligibility to pull.
  18. See: SAFETY REQUIREMENTS FOR ALL TRACTORS for additional setup requirements.


1150 lb. MOTORCYCLE ENGINE GARDEN TRACTOR CLASS REQUIREMENTS: Top of page

  1. Maximum weight limit is 1,150 lb., including tractor, weights, driver and helmet.
  2. A DOT-approved safety helmet is mandatory in this class.
  3. Any type pump gas with alcohol no greater than 10% allowed. No E30, E85, methanol or nitromethane permitted.
  4. Engines: Motorcycle engines (1 cylinder engines allowed to compete), 850 cc's below.
  5. All exposed turbo chargers or portions, must be shrouded 360° with minimum .060" steel except for inlet and exhaust.
  6. Hood or side shields are optional.
  7. Maximum tire size is 26-12.00x12. No dual tires, tire studs, cleats or paddle tires allowed. No four-wheel-drives permitted.
  8. Maximum drawbar/hitch height is 13" with driver positioned in seat. Will be measured while on scale platform.
  9. Maximum wheel base length of garden pulling tractor shall be no more than 56" from center of rear axle to center of front axle, and maximum length of tractor to be no more than 96" from center of rear axle forward including end of extended weight bar. Pulling vehicle must fit on scales as they are set up to weigh and pull. (Scale platform is 8 feet in length.)
  10. Any violations of the above requirements will be subject to protest, disqualification or ineligibility to pull.
  11. See: SAFETY REQUIREMENTS FOR ALL TRACTORS for additional setup requirements.


1,300 lb. OPEN GARDEN TRACTOR CLASS REQUIREMENTS: Top of page

  1. Maximum weight limit is 1,300 lb., including tractor, weights, driver, helmet and fire suit, if worn.
  2. A DOT-approved safety helmet is mandatory in this class.
  3. Any type pump gas with alcohol no greater than 10% allowed. No E30, E85, methanol or nitromethane permitted.
  4. All Open class tractors must have maximum 4 cylinder automotive engine.
  5. All exposed turbochargers or portions thereof must be shrouded 360° with minimum .060" thickness steel, except for inlet and exhaust.
  6. Maximum tire size is 26-12.00x12. No dual tires, tire studs, cleats or paddle tires allowed. No four-wheel-drives permitted.
  7. Maximum drawbar/hitch height is 13" with driver positioned in seat. Will be measured while on scale platform.
  8. Not to exceed 8' in overall length (excluding wheelie bars) and no longer than 72" center to center between axles. Overall length from center of the rear axle to the furthest point forward (including weights) NOT to exceed 8 ft.
  9. Not to exceed 60" in width.
  10. Pulling vehicle must fit on scales as they are set up to weigh and pull. (Scale platform is 8 feet in length.)
  11. Any violations of the above requirements will be subject to protest, disqualification or ineligibility to pull.
  12. See: SAFETY REQUIREMENTS FOR ALL TRACTORS for additional setup requirements.


1,400 lb. OPEN AUTOMOTIVE ENGINE GARDEN TRACTOR CLASS REQUIREMENTS: Top of page

  1. Participants in the Automotive Engine Mini Rod class(es) must possess a valid DMV driver's license.
  2. Maximum weight limit is 1,350 lb., including tractor, weights, driver, helmet and fire suit, if worn.
  3. A DOT-approved safety helmet is mandatory in this class.
  4. Class is open to any piston-propelled automotive engine. No rotary or aircraft engines. No cubic inch limit. Aluminum heads and aluminum intakes permitted.
  5. Any type pump gas with alcohol no greater than 10% allowed. No E30, E85, methanol or nitromethane permitted.
  6. All tractors must be equipped with a functioning brake and reverse gear.
  7. Use of stall torque converters and automatic shifts will be permitted.
  8. All automatic- and manual-shift transmissions must have a park/neutral safety switch. Engine must not crank over when transmission is in any gear except park or neutral.
  9. All driveline u-joints must be shielded 360° with minimum 4" width x 1/16" thickness steel or 1/8" aluminum loop.
  10. All flywheels and flex plates must be shielded 360° with minimum 4" width x 1/4" thickness steel or 3/8" aluminum. Transmission blankets are optional.
  11. Any engine equipped with a harmonic balancer or steel hub shall be shrouded with 1/4" steel or 3/8" aluminum. Shroud shall be no more than 1" away and cover rotating part 360°.
  12. All tractors shall have a main battery disconnect switch to be located where (in case of an emergency) track personnel can get to the switch. Switch must be connected to battery cable before going to starter and kill all power to the tractor.
  13. Unrestricted exhaust must discharge vertically (up) at least 12" above bend and be securely attached.
  14. Roll bar to prevent rollovers is optional.
  15. Heim (ball joint) type tie rod ends required with bolt, flat washer and lock nut. Integrated ball with stud type of tie rod ends not allowed.
  16. Fire suits are mandatory if running methanol. Fire suit must be worn properly fastened and all loose ends in place. If not, tractor and driver will not be allowed to pull.
  17. Maximum tire size is 26-12.00x12. No dual tires, tire studs, cleats or paddle tires allowed. No four-wheel-drives permitted.
  18. Maximum drawbar/hitch height is 13" with driver positioned in seat. Will be measured while on scale platform.
  19. Not to exceed 8' in overall length (excluding wheelie bars) and no longer than 72" center to center between axles. Overall length from center of the rear axle to the furthest point forward (including weights) NOT to exceed 8 ft.
  20. Not to exceed 60" in width.
  21. Pulling vehicle must fit on scales as they are set up to weigh and pull. (Scale platform is 8 feet in length.)
  22. Any violations of the above requirements will be subject to protest, disqualification or ineligibility to pull.
  23. See: SAFETY REQUIREMENTS FOR ALL TRACTORS for additional setup requirements.


1,550 lb. OPEN AUTOMOTIVE ENGINE GARDEN TRACTOR CLASS REQUIREMENTS: Top of page

  1. Participants in the Automotive Engine Mini Rod class(es) must possess a valid DMV driver's license.
  2. Maximum weight limit is 1,550 lb., Includes tractor, weights, driver, helmet and fire suit, if worn.
  3. A DOT-approved safety helmet is mandatory in this class.
  4. Open to any piston-powered automotive engine. No rotary or aircraft engines. No cubic inch limit. Aluminum heads and aluminum intakes permitted, engine can be either carbureted or fuel injected.
  5. All unrestricted exhaust must discharge upward at least 12" above bend and be securely attached to engine or tractor frame.
  6. Any type pump gas with alcohol no greater than 10%. No E30, E85, methanol or nitromethane permitted.
  7. Maximum tire size is 26-12.00x12. No dual tires, tire studs, cleats or paddle tires allowed. No four-wheel-drives permitted.
  8. All entries must be equipped with a functioning brake and reverse gear.
  9. Wheelie bars mandatory to prevent a possible turn over, they must be adequate to support the weight of the entry.
  10. Wheelie bars and weights must be attached so as not to interfere with hooking of sled chain and drawbar.
  11. In case of drawbar/hitch breakage, drawbar/hitch must have minimum 3/16" diameter steel safety cable securely fastened around one axle housing, going behind/across drawbar, and securely fastened around other axle housing.
  12. All weights, weight brackets or boxes must be safely secured to the tractor and not extend beyond the rear tires. Any weights falling off tractor while hooked to the sled will be cause for disqualification.
  13. Use of stall torque converter and automatic shifts will be permitted.
  14. All automatic- and manual-shift transmissions must have a park/neutral safety switch. Engine must not crank over when transmission is in any gear except park or neutral.
  15. All driveline u-joints must be shielded 360° with minimum 4" width x 1/16" thickness steel or 1/8" aluminum loop.
  16. All flywheels and flex plates must be shielded 360°, 4" minimum width x1/4" thickness steel or 3/8" thickness aluminum.
  17. Automatic transmission blanket is optional.
  18. Any engine equipped with a factory harmonic balancer must be shielded 360° x 1/4" thickness steel or 3/8" thickness aluminum. Shield shall be no further than 1" distance from balancer.
  19. All tractors shall have a main battery disconnect switch, to be located where track personnel can easily disable it in case of an emergency. Switch must be connected between battery cable and disable power to all electrical circuits when turned off.
  20. Roll bar to prevent rollovers is optional.
  21. Heim (ball joint) type tie rod ends required with bolt, flat washer and lock nut. Integrated ball with stud type of tie rod ends not allowed.
  22. Any violations of the above requirements will be subject to protest, disqualification or ineligibility to pull.
  23. Maximum tire size is 26-12.00x12. No dual tires, tire studs, cleats or paddle tires allowed. No four-wheel-drives permitted.
  24. Maximum drawbar/hitch height is 13" with driver positioned in seat. Will be measured while on scale platform.
  25. Maximum wheel base length of garden pulling tractor shall be no more than 56" from center of rear axle to center of front axle, and maximum length of tractor to be no more than 96" from center of rear axle forward including end of extended weight bar. Pulling vehicle must fit on scales as they are set up to weigh and pull. (Scale platform is 8 feet in length.)
  26. See: SAFETY REQUIREMENTS FOR ALL TRACTORS for additional setup requirements.


GRIEVANCE / PROTEST POLICY:

NOTE: Protesting a competitor's pulling vehicle is never an easy thing to do. Although it is allowed in the rules, it can cause hard feelings. But it helps to keep everyone involved in this sport fair and honest, plus it shows good sportsmanship. The protester will not be considered a "troublemaker" either. Also, a disqualification is not a protest. It pertains to the actions of a puller or tractor on the track, how a tractor is set up, or part(s) of a tractor that can be seen in plain view and is obvious in violation of a rule.

  1. Protest pertains only to: total weight of tractor w/driver, helmet and fire suit; fuel type; bore/stroke and/or valve sizes. Automotive Engine Mini Rods are excluded from bore/stroke and valve size protests.
  2. Protester must be a registered puller of the same class as the tractor being protested against. Or for anonymity, protester can have the president of the HRGTPA protest the allegedly illegal tractor at any pull. Protester must still post $10.00 for the protest. Protester or president must deposit with secretary $10.00 in cash at the time of the protest.
  3. Protester or president must notify the secretary of a alleged protest. The secretary will then take it to the President and/or Head Safety Officer.
  4. To prevent delays for other pullers ready to pull, all protests will take place at the end of the pulling class or entire event. Protested tractor is to be placed separate from all other tractors in open view to everyone and guarded by an HRGTPA official to prevent any alteration of tractor, weights, fuel and/or engine.
  5. The results of the protest shall be kept private from all other pullers and will be returned to the secretary and given to the protester.
  6. One protest fee covers complete tractor inspection.
  7. Only the following will be present at the protest:
  8. All involved in protest will comply within the protest rules.
  9. Failure for tractor to comply with protested regulations will cause tractor to be ruled illegal.
  10. FIRST OFFENSE:
  11. SECOND OFFENSE:
  12. If the weight of tractor, fuel or engine is found to be legal according to the HRGTPA rules, the protested puller gets the protest fee.
  13. All grievances will be settled in a fair and business like manner. All decisions made by the officials will be considered just and final.
  14. Any questions on specifics or on the rules stated can be directed towards the President or Head Safety Official.


If you have any questions about these rules, and/or if you're interested in participating with the HRGTPA, please contact: Brent Miller (President), 12091 N. Route B., Hallsville, Missouri 65255 | Phone: 1-573-424-6217. | E-mail: a-1lawncareandlandscaping@outlook.com | Secretary/Treasurer: Valerie Miller | Safety Inspector: Cody Hultz | Sled Operator: Martin Wolbeck

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