Diablo Trails Challenge
Always double-check with the organizer's website! This page may contain affiliate links.
Diablo Trails Challenge 2027
The Diablo Trails Challenge takes place on April 3, 2027 at 1700 Castle Rock Road, Walnut Creek, California. The event is organized as a set of trail running distances held on and around Mount Diablo, with multiple entry options.
Available distances include:
- 50K
- Half Marathon
- 10K
- 5K
A portion of all entry fees is designated for Save Mount Diablo. The fundraising information notes that Save Mount Diablo has worked for over 40 years to preserve and expand open space on and around Mount Diablo, growing protected land from 6,788 acres to more than 100,000 acres.
Registration is offered in tiered pricing periods and includes additional entry options such as a remote runner category and a BBQ lunch ticket. Fees vary by distance and by registration date. The event also provides standard participant services associated with organized trail races and lists opportunities to volunteer, create teams, transfer entries, or donate to participants. Visit the organization's website for the most recent information.
