Note: If there is a conflict between the general rules and the class specific rules, the class specific rules take precedence.



All drivers must marshal the race directly following theirs. Replacements are allowed only if the driver is physically unable to marshal, or if the driver is also in the next heat race, or if they are involved in running the race. It is the drivers’ responsibility to find a substitute for them. Replacement marshals should be drivers, and must be approved by the marshal captain, or person who is in charge of running the race. Marshals may not make repairs to cars except as follows: push the car once, spin the wheels, check to see if battery is plugged in, check to see if the car is turned on, and may pop a ball end back on a ball stud. If a marshal attempts to make repairs the driver may lose all laps made in that race (the marshal may also be penalized as well: see penalties). A broken car must be removed from the racing surface.

Driver’s Stand

All racers must drive from the drivers stand. Drivers must stay on the stand during the race. Drivers must agree to spread out and use the entire stand to allow room for other drivers and help avoid radio interference. Drivers interfering with others in any way will not be permitted (this includes driving while standing on, or inside of the track surface during practice. All driving must take place from the stand).


There will be a maximum of 10 cars per heat outdoors and 6 cars per heat indoors (this excludes mini, SLASH (March 2009), road course and off road classes), and a minimum of 5 cars per class. Cars line up in specified staging area, in number order for the first heat. The second heat will then line up in the reverse order. A Driver may elect to start from the rear of the field before the beginning of the race; however the other drivers may not change their position. A driver having trouble getting to the line because of a mechanical problem may request a ‘one minute grace’ delay to the start of the race. This cannot be requested from the pit area (meaning you must try to stage your car on time, you cannot request a delay because you are late getting to the line). Oval classes will now use a “on the pole” start, or a “rolling start” for the qualifiers. This start is an IFMAR type start, in respect that each racer is on their own clock, which starts when they cross the loop on their first lap. On the instruction of the announcer, the field will follow the car that starts on the pole (the 1st starting position) and may not pass until they cross the loop to begin the qualifier (March 2006).


In the event that there is more than 6 vehicles during an indoor race (with the exceptions of mini, SLASH, Off Road and Road Course, where the maximum number is 10), we will have multiple mains. In the event that we have between 7-11 racers, the A and B mains will be split. If there is an extra vehicle (not an even split), he/she will race in the A main, E.G. with 11 racers, 6 will race in the A-main and 5 will race in the B-Main. In the event of More than 12 racers, The higher mains will be fully seated (6 cars), and the other mains will split the difference in racers, E.G. if we have 21 racers, 6 racers will be in the A-Main, 6 racers will race in the B-main, 5 racers will race in the C-Main and 4 racers will race in the D-main. The intent is for every racer to race in a main.

Seating for the qualifiers for the 1/10 and 1/12 pan car classes indoors will be determined based on Point standings (the first race of the season will use the previous years standings, starting with the 2nd race of the season, the current seasons point standings will be used).

Outdoor Classes: In the event there are more than 10 vehicles entered into a race, the mains will be split into multiple mains. Outdoor classes use a bump-up system in their mains, whereby the A main is filled to capacity minus 2 vehicles. The 2 remaining vehicles for the A-main are determined based on the next lower main finishing order, E.G. the 1st and 2nd place vehicles from the B-main will bump up to the A-main, starting in the 9th and 10th starting positions, respectively. This takes place for all mains, E.G. if we have 30 entries for a class, 8 are seated into the A-Main based on best qualifying times, then the B-main is seated with the next 8 drivers based on best qualifying times, the C-Main is seated with the next 8 drivers based on the best qualifying times and the D-Main is seated with the remaining 6 drivers based on best qualifying time. The mains are run with lowest main first; the 1st and 2nd finishers in the D-Main bump up to the 9th and 10th starting positions in the C-Main, and the 1st and 2nd finishers of the C-Main bump up to the 9th and 10th starting position of the B-Main and so on; meaning that someone that qualifies in the last main still has a chance to race his/her way into the A-main. Racers that bump up to higher mains have the responsibility of being ready for the next main, no extra time will be given to prepare your vehicle (aside from a battery and or transponder change).

Heat Seating is based on the order that racers names are entered into the computer (unless otherwise noted). The race director can change the heat assignments for individuals needing assistance with pitting of Nitro vehicles. If your pit person is also racing in the same class as you, you will need to speak with the race director prior to the posting of the heats with any concerns/requests for being in separate heats. (March 2009)


All vehicles must carry a transponder to have their laps scored. The transponder supplied by the club is about 1″ square, and must have clearance in the car. If you are going to use the club supplied transponder, you must have a 1/4″ hole in the body of your vehicle to install it (or an acceptable mount specifically designed to install transponders that must be pre-approved by the tech inspector.). The transponder must be held securely in place by a body-clip. It should be placed as far away from your motor and speed-control as possible. The transponder may not be altered or modified in anyway. Any violation will require you to pay for the purchase of a new transponder. If the transponder falls out of your vehicle, your laps will not be counted from that point on. If the transponder fails to record your laps, but checks in correctly before AND after your race, your laps may not be counted for that run (however, officials will make a concentrated effort to count the laps if possible). Mounting locations specified in the individual class rules are only applicable to club owned transponders, they do not apply to personal transponders, which can be mounted anywhere on the vehicle the racer deems appropriate; however the racer is responsible for maintaining that the personal transponder is in working order and the race director will not be held responsible for missed laps (March 2009 Clarification).


*Mobile users swipe to see full table

Failure to marshal heat2 laps off best qualifier time.
Failure to marshal main2 laps off of your main race total
Failure to return radio after heat (if impound is used)2 laps off of best qualifier time
Failure to return Transponder2 laps off of that heat
Failure to return Transponder after main2 laps off your main race total
Leaving Drivers Stand1 lap will be deducted from your main total
Leaving Marshall position2 laps off of best qualifier time (or main)
False start (premature start)1 lap off for that heat (if race begins)
Failure at Tech- (unknowing)0 laps for heat – (1 chance to correct)
Foul Language/verbal abuse0 laps for that race
Foul Language/verbal abuse – 2nd offenseMembership revoked
Deliberately cheatingMembership revoked



All stock classes are restricted to ROAR approved 27 turn stock brushed motors (in all 4 cell stock classes, ROAR approved 17.5 Brushless Motors are allowed to be run along with the brushed motor) (March 2008) unless otherwise stated in specific class rules. Indoor 4-cell stock classes will now also allow the use of a 1S (1-cell) LiPo battery with a 13.5 ROAR approved Brushless motor as Marshalls currently allows (if a 13.5 is in your vehicle, you must use a 1S LiPo) (March 2009). Modified motors must use r/c manufactured 540 style motor components, no exceptions. Any brushless motor is now allowed in modified electric classes, including 2wd Mini classes (March 2008). First-time novice stock drivers may use OEM motor that came with their kit. Any Motor suspected of causing radio or lap counter interference, may be disqualified from use on that day. Capacitors must be correctly installed on brushed motors. For 19T racing, the approved club motor is the ultra bird motor with adjustable timing, upright brush hoods and ball bearings. 19T classes now also allow ROAR approved brushless 4300 (10.5 Turn) Motors (sinitered Rotors are allowed, as they now are available with the motor) (February 2007). Club motors are available at the track on race days for purchase.

A full list of approved ROAR motors can be found at the Roar Web Site: (April 2010)

Also Note: Motors with a DODC or BRL label that meet the ROAR specifications as above may also be used in competition, and will be treated as ROAR equivalents, E.G. spec motors. (March 2009)


A full list of approved NiMh and LiPo batteries can be found at the Roar Web Site: (April 2010)

Hard Cased 2S, 7.4volt, Lithium Polymer (LiPo) batteries are allowed in our 6 cell 1/10 scale (non spec) classes. These batteries do not need to be ROAR approved. (April 2010)

Additionally, LiFePO4 (Lithium-Iron-Phosphate) batteries will also be allowed, they may be soft-cased batteries. However, if there is a restriction on the voltage (number of cells) for a given battery, additional LiFePO4 cells may not be used, e.g. if you are racing in a class where a maximum of 7.4 volts is allowed (nominally) you may not run additional LiFePO4 cells and run a voltage greater than 7.4volts. (April 2010)

1/8th scale buggy and truggy electric vehicles may use non-ROAR approved (as well as ROAR approved) LiPo batteries, provided they are hard cased and the manufacturer currently makes other batteries to ROARs specs. These vehicles may use up to a 6S equivalent LiPo battery. (March 2009)

Mini vehicles (1/18th and 1/16th scale) vehicles may use non-ROAR approved soft-case LiPo batteries. Drivers that are not familiar with LiPo technologies are urged to talk to a race official about the possible dangers of LiPo’s, especially soft-cased LiPo’s. (March 2009)

Current Maximum NiMh Mah battery allowed for competition is 5300mah (March 2009) (see Roar web Site for approved batteries) (March 2008)

Also Note: Batteries (NiMh, NiCd and LiPo) with a DODC or BRL label that meet the ROAR specifications as above may also be used in competition, and will be treated as ROAR equivalents, E.G. spec batteries. (March 2009)

Battery Charging

Care needs to be taken when charging and discharging any remote control vehicles battery. Batteries should not be left unattended while charging and a charger designed specifically for the type battery you are charging should be used. LiPo batteries require the use of a safe-charging enclosure, e.g. a LiPo sack or 2 sandwich bags full of sand (LiPo between them), see ROAR or the batteries manufacturer for more guidance (Http://

2S LiPo’s voltages should not at any time exceed 8.44 volts for any reason (this also applies to higher capacity batteries, E.G. a 3S LiPo should not exceed 12.66V, 1S LiPo not to exceed 4.22V, etc). If your battery is found to be above this value, you will not be allowed to use the battery in competition. Also, a LiPo battery may not exceed 80 oF before beginning a race, again, if this is found, the battery will not be allowed to be used in competition (80 oF is a baseline, a control battery will be used to determine the actual allowed value on a race day, it will be 10 oF above the temperature of the control battery – e.g. a battery sitting on a bench). These offenses will be considered cheating, see penalties below. (March 2009)


All scratch-built, homemade chassis’ must be inspected by tech, prior to registration. This includes custom 1/8th scale electric conversions (March 2009). Tech will determine what class the vehicle may enter into. No chassis alterations in configuration are allowed in stock classes that require KIT-Style chassis, as specified by class rules. All classes are rear wheel, 2wd unless otherwise specified in the rules for that class.


All tires for car classes must be car scale tires. All truck classes must use truck scale tires.


Only FCC certified legal equipment may be used. No aircraft or foreign frequencies are allowed. Any equipment shown to cause interference with other racers, or lap counter, will not be allowed in competition. Since the club no longer has radio impound, it is the racers responsibility to ensure that they do not turn on their radio during another race. Racers using Spektrum (2.4gHz technology) may use their radios in the pits between outside of their own heat, however, use of the track is not allowed during a qualifying round if you are not in the heat that is racing, ending or staging unless give permission by the racer director and/or board members (March 2009).


  • Any racer, who acquires “0 laps” for both heats via penalties, will be disqualified and not be allowed to race the Main (for example- failure at tech in one heat, and foul language in another heat = 0 laps- Disqualified for the day).
  • Voting Board members along with the tech inspector reserve the right to impose other penalties by majority vote, as may be required.
  • The Dirt Runners R/C Car Club provides the opportunity to race all classes listed below, but cannot control the number of entries into any class.  If the number of entries in any class is less than five, the Dirt Runners Board of Directors may move any entry into a similar class of competition. The entrant may request to move to a different class but must be agreed to by the Dirt Runners Board of Directors. Or the entrant may decide to withdrawal from competition and receive a refund.
  • The above rules and penalties will be strictly enforced