Maximum overall width (including wheels and axles) shall not exceed 2 3/4". So cars will not interfere with each other when they are in adjacent lanes.

Minimum width between wheels shall be 1 3/4" so cars will clear the center guide strip.

Minimum clearance between bottom of car and tack shall be 3/8" so car will clear the center guide strip.

Maximum length shall not exceed 7"

The wheelbase (distance between front and rear axles) may be changed.



Weight shall not exceed 5 ounces. The readings of the Official Race Scale will be considered final. The car may be hollowed out and built up to the maximum weight by the addition of wood or metal, provided it is securely built into the body or firmly affixed to it. No loose materials of any kind are permitted in or on the car.

Details such as steering wheel, driver, spoiler, decals, painting and interior detailing are permitted as long as those details do not exceed the maximum length, width and weight specifications and are firmly affixed to the car.

The car must come to rest against the starting gate and be entirely behind the starting line.

The body of the car must be constructed from the block of wood provided in the Pinewood Derby Kit.


Stock width of the wheels is not to be altered. Beveling, tapering, thin sanding or wafering of the wheels is prohibited. The only alteration allowed would be the removal of the small burr found on the contact surface of most wheels.

Only the official scout grand prix wheels and axles, from the kit, may be used.

Wheel bearings, washers or bushings are prohibited.

The car shall not ride on any type of springs.

The car must be free-wheeling with no starting device or other propulsion.

Holes cannot be drilled through wheels to remove material, and material cannot be removed from the inside of the wheels.

Weight cannot be added to the wheels, filling of the wheels (back side) is not permitted.

Wheels must be square and parallel to the axle.

Axles may be polished.

Do not build up axles with any material and then turn down with a lathe.

Axles must be mounted directly into the body of the car, with no external guides or supports (such as springs or tubing).



Only dry powdered lubricants, such as graphite may be used. No liquid lubricants are allowed. Regular oils and silicone sprays may soften the plastic wheels.

Cars may be lubricated before inspection. Lubrication must be done outside the building. After inspection, no further lubrication will be permitted.



The race is open to all Tiger Cubs, Cub Scouts and Webelos Scouts registered in the pack.

Cars must have been made for this race. Cars made for a previous derby are not permitted. Only one car per child.

If a car suffers a mechanical problem, loses an axle, breaks a wheel, etc. and a repair can be accomplished in a reasonable time, the heat will be run again. If not, the car will automatically lose the heat.

To qualify for entry to race, cars must be presented during official weigh-in time (to be announced). Qualifying cars must be left in possession of the judges and cannot be modified further.

Cars that do not meet the qualification standards will be given an allotted time to make adjustments to bring the car up to qualifying standards. No cars will be accepted after the official weigh-in, unless it has been given an exemption from the judges. A time limit will be set as to when the car must be presented for qualification.

Cars that do not meet these rules will not be allowed to race. No entries will be accepted for participation after stated times and or after the race has started.


Each car must pass inspection by the Official Inspection Team before it may compete. The inspection team has the right to disqualify those cars, which do not meet these rules. Car owners will be informed of the violations and given an opportunity to modify the car to meet these rules.

Any participant (including the parent of the participant) has the right of appeal to the race Committee for an interpretation of these rules. In case of a tie vote, the decision of the Race Committee Chairperson will be final.

Ungentlemanly or unsportsmanlike conduct by any participant or member of the audience will be grounds for expulsion from the competition and/or the race area.

The child owner of the car must be present on Race Day in order to have his car participate in the derby.


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