The Wilkin County Fair

Demolition Derby Rules & Regulations

Welles Memorial Park & Fairgrounds

Breckenridge, Minnesota


Applications for all three derbies will be taken on a first come basis. Entry fee is $50 for the truck derby, $75 for the Regular Derby and $50 for the Compact Derby, if registered by July 3, 2011. Add an additional $20 for all late entries.

If you have any questions concerning the rules & regulations, please contact Max Roberts
at 701-403-4626



Compact Derby - Truck Derby
(held between consolation & final heat)
 Sunday, July 17, 2011 @ 2:00 PM





1st Place:   $500 + Trophy 1st Place: $1000 + Trophy
2nd Place:   $200 + Trophy 2nd Place: $500 + Trophy
3rd Place:   $100 + Trophy 3rd Place: $250 + Trophy
      Mad Dog Hit:   $50
Heat Winners:   Trophy + a chance to
advance to the feature race.
Heat Winners: Trophy + a chance to
advance to the feature race.

TRUCK DERBY - 100% payback + $200


Truck Derby will be held between the consolation and feature of the full-size on Sunday.

1st Place:

  $ + Trophy
2nd Place:   $ + Trophy
3rd Place: $ + Trophy
Mad Dog Hit: $50
Heat Winners: Trophy + a chance to advance to the feature race.

Truck and Full-sized Car Heats:
Four heats, not more than eight entries in each heat. The last two running vehicles in each of the four preliminary heats shall advance to the feature event.

A consolation heat will be held for all other vehicles still capable to running, with the winner also advancing to the feature event.

Truck Derby
The truck derby will be held between the consolation and the feature on Sunday's derby. The derby will consist of not more than two heats with not more than ten trucks in each heat. The top five from each heat will advance to the feature.

Entries are open to men and women. In the interest and fairness to all contestants, the following rules will prevail:

If the derby becomes unsafe it will immediately be stopped. All money and trophies will be forfeited. If a vehicle gets hung up on the guardrail there will be NO pull-offs. Be safe, drive carefully, and most of all - have fun!

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REMEMBER: If it doesn't say you CAN do it, DON'T!

  1. All derby vehicles will be trailered to the inspection site of Welles Memorial Park. Vehicles shall remain trailered until they pass inspection and are told where to unload. Driving or towing a demolition vehicle to Welles Memorial Park is not acceptable. People in violation of state laws or local ordinances will be turned over to law enforcement and not be allowed to run in the derby - no refund will be made.
  2. All drivers under 18 years of age MUST have notarized permission form filled out and signed by a parent or legal guardian and must possess a valid driver's license.
  3. No passengers in derby vehicles anytime they are being operated.
  4. Entries will be accepted up to two hours prior to start of the derby. Compact derby applications will be accepted up until noon.
  5. NO alcohol or drugs will be tolerated. Law Enforcement will be notified and violators will be removed from the fairgrounds.
  6. Conduct of a driver, his crew members or friends, can disqualify the driver from the event.
  7. Drivers are required to wear crash helmets and safety glasses/goggles or face shield. Drivers are also encouraged to wear fire retardant overalls. Driver must remain in their vehicle during the derby with their helmet on and chin strap fastened.  A driver shall be disqualified for failing to do so. Seatbelts are required and are to be fastened at all times while operating a derby vehicle.
  8. Only the driver will be allowed to speak to the officials regarding the derby. Absolutely NO pit crew member or fan will be acknowledged.
  9. A protest will cost $100 cash upfront. If the challenge stands, the money will be returned. If not, the money will be forfeited and turned over to the driver of the vehicle being challenged.
  10. Derby officials may require a driver to remove or change any part or portion of a vehicle which they consider to be unsafe.
  11. Absolutely NO hitting the driver's door of an opponent. Officials will determine weather it was accidental. First accidental hit will result in a warning. The driver will immediately be disqualified upon a second accidental hit or an intentional hit to the opponent's driver's door.
  12. All drivers must attend a driver's meeting at the entrance to the derby arena one hour prior to the derby.
  13. If necessary, officials will deal with any situation not covered in these rules. All decisions of the officials are final.
  14. Remember - The Wilkin County Fair is a family event. Please demonstrate good sportsmanship and have fun.
  15. Drivers must hit an opponent at least once every minute. Sandbagging will NOT be tolerated. The derby will be stopped and the sandbagger's car will be marked with a double 00 to signify to other drivers who the sandbaggers are. If a driver is caught sandbagging after already being marked with a double 00, the driver will be disqualified.

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  1. Trucks are to be rear wheel 2X4 - 1/2 or 3/4 ton trucks. All trucks will be inspected before the derby. Coordinators will be at the entrance to Welles Park to direct derby drivers. Inspectors will begin as early as four hours prior to the derby. Pre-registered vehicles will be inspected first. If registered vehicles are not inspected in time for the derby, alternates will be allowed to take their place.
  2. All trucks must have their driver's door painted back with a white X covering from corner to corner of the door. Truck must also have a 12" X 12" sign mounted on the roof of the truck with readable number(s) on both sides of the sign.
  3. All glass, side and rear windows, headlights, taillights, and windshield must be removed - no rolling down windows will be tolerated.
  4. Complete removal of the interior is recommended. All trucks must be swept clean, including the driver's compartment and bed. No spare tires, broken glass, or trash will be allowed.
  5. Battery must be relocated to the front floorboard and securely fastened, and covered. Only one battery is allowed. 
  6. All trucks must have radiator in stock position. If radiator is removed, you may ONLY run water in the block. NO reserve tanks allowed.
  7. Side doors must be welded solid, chained, bolted or wired, but they MUST be secured in one of the manners.
  8. A four-sided driver protection cage is highly recommended. Cages must not exceed 6" in front of the doors and may not extend past the cab. Cage poles must not exceed 3" in diameter.
  9. Bed may have additional bolts. Rubber mounts may be removed. Factory bed floor only. Wood  floor must have factory metal strips. NO NO NO steel replacement floors.
  10. The back of the cab may be welded to the bed. Tailgate may also be welded to the bed. No other re-enforcing will be allowed.
  11. Stock gas tank must be removed. A marine tank shall be used in it's place. Tank may be either metal or plastic, but must not hold more than six gallons of gas. The tank must be mounted in the cab or front center of the bed, and securely bolted in place. Fuel lines may be rubber or metal - lines / fittings must be leak proof. Electric fuel pumps are allowed but must have a shut-off within reach of the driver.
  12. Bumpers must be stock Automotive Bumpers. Homemade bumpers are not allowed. Bumper shocks may be welded - no cutting bumper ends or re-enforcing bumpers. Bumpers may not exceed 21" from the ground to the bottom of the bumper.
  13. All hoods must have holes over the carburetor for the fire extinguishing access. Hoods can either be chained or bolted. Hoods must be available to open for inspection.
  14. All frames must remain in OEM stock - no weld zones / bumpers may be welded to frame. Don't add cable, wire, or chain tensioning in or outside the frame. Drivers caught with altered frames will not be allowed to run and will forfeit their application fee.
  15. Suspension must remain stock:
    A.   No stiff suspension. Trucks must have original give and bounce.
    B.   No welding suspension components, including upper and lower arms, tie rods, etc...
    C.   Rear coil springs may be welded or clamped.
    D.   Trucks must have original type suspension. Do not change leaf spring trucks to coil springs, or coil spring trucks to leaf springs.
    E.   No welding leaf springs.
    F.   No adding leaves to spring assemblies. The number of spring leaves must be the same as the manufacturer originally delivered stock, standard truck.
    G.   The suspension may not be modified in any way except in letter B or C above.
    H.   Trailer hitches must be removed. Class A or frame mounted hitches must be totally removed. Class B or bumper mounted hitches must have trailer ball and stub cut off.
     I.   Frame must remain stock. Absolutely no fillers inside or added re-enforcement outside the frame. Do not weld the seams. Repairs made to a broken or rusted frame must meet the approval of an official. DO NOT use camouflage materials.
  16. Engine, Suspension, Rear-end Regulations:
    A.   Any engine / transmission may be used in any truck, but must be mounted in a stock position. On a V block engine, the front spark plug must be even with or in front of the upper ball joint. On in-line engines, the number 2 spark plug must be even with or in front of the upper ball joint.
    B.   Chained, welded, or homemade mounts are permitted and recommended. The must meet the approval of the officials.
    C.   Exhaust is preferred to be upright - out of the hood.
    D.   Any type of header is allowed but must be directed away from the driver's compartment and other competitors.
    E.   Radiators must stay in stock position and may not have anything in front of them. Radiator overflow must be directed at ground.
    F.   Transmission coolers are permitted. All mounting, lines, and fittings must be approved by an official.
    G.   Any drive shaft or u-joint may be used. Welding of the drive shaft is permitted.
    H.   All trucks must have working brakes.
     I.   ONLY gasoline and diesel fuels are allowed. NO NO NO alcohol or other alternative fuels are permitted.
  17. Tires:
    A.   All tires and wheels must be pre-approved.
    B.   Implement, bar, and light truck tires are permitted - no filled tires, including foam, water, cement, etc... No chains, studs, or solid tires - questions call Max Roberts 701-403-4626
    C.   Valve stem protectors are allowed.

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Rules 1-15 of the Registration and Rules apply to the Full Size and Compact Derby also.

  1. Passenger cars only. No trucks, pick-ups, Jeeps, hearses, or commercial vehicles. No imperials or imperial subframes.
  2. All glass must be removed from the vehicle.
  3. Radiator must remain in its original manufactured position. If it is removed, the block may be filled with water only - if radiator remains in stock position, overflow must point down at the ground.
  4. Original gas tank must be removed. Metal or plastic marine gas tank shall be used. Tank must be secured to the floor by straps and bolts. Tank shall not hold more than 6 gallons of gas.
  5. Bumper height shall not exceed 21" from the ground to the bottom of the bumper. Bumpers must be stock automotive bumpers. No other re-enforcement. No trailer hitches, or bumper mounted trailer balls.
  6. Hood and trunk will be chained or bolted. Exhaust is preferred to be upright out of the hood. There must be a hole in the hood surrounding the carburetor for fire extinguishing.
  7. All doors must be chained - no welds, except driver's door. Welds must be approved by an official.
  8. Driver's door is to be painted black and have a large white X from corner to corner on the door.
  9. No welding or additional re-enforcement will be allowed to any part of the car except the driver's door. One safety bar is allowed to run parallel along the dash and one behind the driver's seat. Bar shall not be any larger than 3" in diameter.
  10. No solid tires, no filled tires including foam, water, cement, etc. No studs, chains, etc.
  11. Any questions,  call Max Roberts 701-403-4626

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  1. All rules from the full-size derby apply to the compact with these additional rules.
    A.   To be in the compact derby, the car must be a manufactured stock four or six cylinder car. Front wheel drive only, with a maximum wheel-base of 107". Call or email with questions. 
    B.   Most four cylinder car have the fuel pump in the gas tank. If the tank is located in the front of the rear axel, the tank does not have to be removed. It also is not allowed to have more than six gallons of gas in it. If an electric fuel pump is used, the driver must have a shut off switch within reach. If the fuel pump is not located in the tank or it is located behind the rear axle, the tank must be removed. A metal or plastic marine tank shall then be used. Tan must be strapped and bolted to the floor and not hold more than 6 gallons of gas.

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Remember, we want you to have fun and provide you with an opportunity to put on a good show for your family, friends and community! Please read the rules and call if you have any questions regarding the derby. Violation of any of the rules could be grounds for disqualification and forfeiture of prizes, winnings and entry fee.



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