2023 Mt Diablo Mountain Bike Challenge

MTB Challenge that benefits Youth Mountain Biking by supporting the Contra Costa Composite MTB Team

Challenge Details

Challenging 15.5 mile / 2569 ft. climbing mountain bike experience

  • All legal trails. Single Track & Fire Road
  • Starts and ends in Walnut Creek

$50 donation registers you for the event and you will help youth cycling (CCC MTB is a 501c7 non-profit)

  • The “challenge" is open from Jan 1, 2023 – May 31, 2023 (extended due to all the rain!)
  • Ride as many times as you want to better your time
  • After registering you will receive the route's .gpx file
  • Participants will be entered into raffle for MTB and cycling swag from local bike shops
  • You will also be invited to a new Strava Club “Mt.Diablo MTB Challenge Club” to compare your time.


CCC MTB is a member of NorCal Interscholastic Cycling League and NICA, for boys and girls 6th-12th grade

Course Details


Challenge Sponsors

Ready for the Challenge? Register Today!

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* We will only use this phone # to contact you if you won the raffle and we can't reach you via email.
Accident Waiver & Release Of Liability

I acknowledge that this athletic event is an extreme test of a person’s physical and mental limits and carries with it the potential for death, serious injury and property loss. The risks include, but are not limited to, those caused by terrain, facilities, temperature, weather, condition of athletes, equipment, vehicular traffic, actions of other people including, but not limited to, participants, volunteers, spectators, coaches, event officials, and event monitors, and/or producers of the event, and lack of hydration. These risks are not only inherent to athletics, but are also present for volunteers. I hereby assume all of the risks of participating and/or volunteering in this event. I realize that liability may arise from negligence or carelessness on the part of the persons or entities being released, from dangerous or defective equipment or property owned, maintained or controlled by them or because of their possible liability without fault.

I certify that I am physically fit, have sufficiently trained for participation in the event and have not been advised otherwise by a qualified medical person. I acknowledge that this Accident Waiver and Release of Liability form will be used by the event holders, sponsors and organizers, in which I may participate and that it will govern my actions and responsibilities at said events.

In consideration of my application and permitting me to participate in this event, I hereby take action for myself, my executors, administrators, heirs, next of kin, successors, and assigns as follows: (A) Waive, Release and Discharge from any and all liability for my death, disability, personal injury, property damage, property theft or actions of any kind which may hereafter accrue to me including my traveling to and from this event, THE FOLLOWING ENTITIES OR PERSONS: Contra Costa Composite Mountain Bike Team, National Interscholastic Cycling Association, NorCal Interscholastic Cycling League, Mt. Diablo State Park, East Bay Regional Park District, City of Walnut Creek, all sponsors of the event, Their directors, officers, employees, volunteers, representatives, and agents, the event holders, event sponsors, event volunteers; (B) Indemnify and Hold Harmless the entities or persons mentioned in this paragraph from any and all liabilities or claims made as a result of participation in this event, whether caused by the negligence of releases or otherwise.

I hereby consent to receive medical treatment that may be deemed advisable in the event of injury, accident, and/or illness during this event. I understand that at this event or related activities, I may be photographed. I agree to allow my photo, video or film, likeness to be used for any legitimate purpose by the event holders, producers, sponsors, organizers and assigns.

The Accident Waiver and Release of Liability shall be construed broadly to provide a release and waiver to the maximum extent permissible under applicable law. I hereby certify that I have read this document; and, I understand it’s content.

I also acknowledge:
* The Mt Diablo Mountain Bike Challenge occurs on open trails. There are other users on these trails including hikers, equestrians, other bikers. I will respect and give right of way to hikers and equestrians. I am aware that there is two way traffic on these trails. I will ride at a speed and in a manner that is safe to myself and all other users of the trail.

* The route is over natural surfaces, both fire road and single track. Due to weather and other natural occurrences, the trail can change. I will observe the natural surroundings and adapt my riding accordingly, up to and possibly including not completing the route as described.

* I will obey all rules of trail use. I will not ride on any trails illegal for bikes. I will obey speed limits. I will obey all announcements posted by park authorities. These will supersede the MTMTBC described route.

* I am 18 years old. 

* If I am not 18 years old my legal parent/guardian has read, acknowledged and agrees to this agreement.

* I'd like to help cover the transaction fees for my donation, so the team receives the full $50.
The Contra Costa Composite Mt. Bike team is a non-profit 501(c)(7) and 100% volunteer operated. Any additional amount you'd like to donate will go directly to the team and supports the kids!

Please be sure to follow us on Instagram @cccmtbteam and Facebook: cccmtb

Contact Us

Thank you for stopping by. Our team is FULL for the 2023/24 Season and registration starts back up in October 2024. To learn more about the team please visit our FAQ page. For all other inquiries, please fill out the form below.

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Thank you to our sponsors for making the 2023/24 race season possible!