About & Rules

***For Hell-X info, see the Hell-X tab. Info below is for Dirt Derby***

Official first race is September 19, 2017! We’ll be running for eight weeks with Nov 14 & 21 as rain dates if necessary.


Course Description:

The fully illuminated motocross course and surrounding fields at Austin/Del Valle Motorcross Park (ADVMX). The Short Track and Cyclocross races share much of the same course. The vast majority of the course is more than 15 feet wide, smooth, with no trees, rocks or other obstacles. There are several short and steep climbs and descents, as well as numerous banked turns, but the entire course is extremely safe and ideal for beginner cyclists and kids. There are several well-marked splits in the course, where Cyclocross racers will bear off for run ups, barriers, and Short Track racers will face rhythm sections and other technical challenges. A single lap takes four to six minutes to complete. We follow minimalist marking techniques and try to keep things unique compared to what you see at the normal weekend TMBRA or TXBRA race. Final course note: We just rent the track for race day, so conditions are mostly out of our control and we design the course based on the days conditions. Some days favor MTB, some days favor CX, but overall we try to even it out.

First Timer’s:

We love first timers! The Dirt Derby is a great place to try out racing for the first time. No license, no stress, and great people. If you have any questions just let us know. We can always find an experienced racer willing to do a pre-ride lap with you to show you the ropes and introduce the course. If you have the choice between a CX bike or MTB, first timers are generally more comfortable on an MTB first time around (but don’t worry too much, we see bmx bikes, cruisers, touring bikes, and everything in between). No matter what you ride you’ll have a great time.

6:15 PM Kids Race

6:30 PM Beginner/C Race (20 min & 35 racer limit)

7:00 PM Intermediate/B Short Track MTB(25 min & 35 racer limit)

7:30 PM Intermediate/B Cyclocross(25 min & 35 racer limit)

8:00 PM Open/A Short Track MTB, Cyclocross(30 min & 40 racer limit)
Registration closes 10 minutes before each race.

A or B First Race: $10
Second Race: $5
Beginner: $10
Women: $10
SCCCC: $10
Kids under 18 : Free
No licenses or land-access fees required


  • All types of bikes are welcome
  • Please remove your bar ends before racing
  • You may not enter both the Beginner and A race the same night
  • Everyone must sign a waiver – save time and print yours at home
  • Helmets must be worn at all times while riding
  • You may only pre-ride the course when specifically instructed by the announcer
  • Sandbagging: While we have no “official” categories, it’s important that racing be fun for everyone. If you can lap the field then its time to race in a harder category. We have Masters and Single Speed categories during the B race so as to create more racing opportunities for our fastest racers without overwhelming our Intermediates. However, some of fastest racers like to do 3 races in a night: we ask you to be EXTREMELY courteous when lapping riders.
  • Have fun


  • A Race: An “open” race for all abilities
  • B Race:  Intermediate, Masters (50+), and Single Speed categories for both Cyclocross and Short Track Mountain Bike. Men and women start together and are scored separately.
  • Beginner and Kids Races: A fun event for newer racers, or more experienced racers who are getting back into shape. The course avoids the most difficult sections. Beginner short track and cyclocross will start simultaneously but be scored separately unless field size dictates staggering like the B and A race.


  • We take great pride in scoring everyone who races. However, mistakes are made. There will be a 10 minute window following each race to inform the scoring officials of any changes you need.
  • Men and Women start together and are scored separately in all events.
  • Short Track and Cyclocross are scored separately in all events

Open Races Series 

  • Along with weekly scoring for each race we will also track series standing for the open race.
  • Rules are here dirtderbyseriesrules

Awards and Prizes:

  • Awards/prizes will be given to the kids and beginner’s class at the end of the Beginner race. Intermediate and Open awards/prizes will be given after the conclusion of the Open race.

Rain and Race Postponement:

  • Facebook/Twitter will have our most up to date information.
  • The Austin/Del Valle Motorcross Park (ADVMX) is constituted of a type of clay that when saturated makes it impossible to drive onto the property, much less ride a bike. Thus, if there has been significant (>1″) rain prior to the event and a lack of sun and wind to dry it out, we will have to cancel the race. Historically, we have averaged one rain date in the fall.

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Short track and cyclocross racing under the lights