DORBA's Endurance Challenge at OCNP

UPDATE: Northshore is currently closed and under water. Chances are slim that Northshore will be open by event day. We are shifting the event to the alternate location of Oak Cliff Nature Preserve. Registered riders will receive details via email.

Yes, this is happening at OCNP which is an all weather/always open trail. Yes, spots are limited and signup closes Friday night. NO, there will NOT be onsite/day of registration.

Each lap will be a tad over 7.5 miles which is the "full loop" at OCNP with one minor detour to bypass a potentially steep/muddy section. 30 milers do 4 laps, "50" milers do 7 laps, Beginners/Juniors do 1 lap. Course will be marked Friday.

Checkin opens 7am. Parking on Pierce Street ONLY. First MANDATORY racers' meeting at 8:15. Wave starts for each category begin at 8:30. Category specific racers' meeting 5 minutes before each category start. Wave/Category start details will be explained in the general meeting. All racers will be on course by 9am.
Neutral transition area will be available for multi lappers but you will need to carry your stuff there from parking on Pierce Street.

How far can you go? Formats to fit every checkbox for personal achievement and satisfaction! Side by side racing for those who need a competitive fix or solo Challenge format for those who only need to prove it to themselves.

Please note that signup is online via this website ONLY. We will not have on site registration. Slots will be limited and signup closes Friday night before the event.

Format Overview:

Challenge Format is for those looking to see how far they can go prior to the cutoff time. Each lap will be 10(ish) miles and there is a firm cutoff of 8 hours for up to 7 laps. Each Challenge rider will receive accomplishment recognition for each lap starting at 3 laps. How many can you collect? The Challenge format is NOT a race. Results will only reflect total distance/laps completed. They will not be ranked by time.

Endurance Race Format is for those who want to see how they stack up with others who are more oriented to side by side competition. 4 Lap and 7 Lap options for both Men and Women. Racers will also earn Challenge tokens but will not have their results mixed in with Challenge riders.

Awards for top 3 Overall, Top 25% Female (Up to 3 awards), Top 25% Single Speed (Up to 3 awards). Additional awards categories such as age breaks could be added if number of registrations prior to 3/1/24 allow for it.

Beginner Racer/Junior Racer 1 lap sprint race. This is a 7.5(ish) mile unsupported lap. Beginner racers should be true beginner racers who have not raced mountain bikes previously. Experienced racers should attempt the Endurance distance and build that skillset. Junior racers must be capable racers able to navigate a 10 mile loop on their own without support. This is not a Kidz Kup race.

Awards categories to be determined by age and gender based on signups prior to 3/1/24.

Class 1 Pedal Assist Ebikes are allowed, but a permit must be obtained from the Lake Grapevine Army Corps of Engineers Project Office at 110 Fairway Drive, Grapevine. There are some restrictions on who can get one. Please see the link "Ebike Policy and Blank Permit Form" for more information.

Event date is dependent upon trail being open. We will reschedule (date TBD) if trail is closed due to inclement weather or other reasons.