Diablo Trails Challenge

Walnut Creek, United States • 3 Apr 2027

Diablo Trails Challenge 2027

The Diablo Trails Challenge is a trail running event held on April 3, 2027, at 1700 Castle Rock Road, Walnut Creek, CA, United States. The event offers multiple trail distances and a remote participation option.

Distances offered include:

  • 50K
  • Half Marathon
  • Hiker Half Marathon
  • 10K
  • 5K

A portion of all entry fees will be donated to Save Mount Diablo. The organizer notes that Save Mount Diablo has increased protected open space from 6,788 acres to over 100,000 acres over more than 40 years. The event description also lists a paid BBQ lunch option and a remote runner category.

Registration pricing is shown with multiple tiers and dates for price changes. The event page lists an event website and links for additional event services such as transfers, team creation, volunteer sign up, and fundraising options. Information about specific start times, detailed course descriptions, aid stations, or participant requirements is not provided in the available source material. Visit the organization's website for the most recent information.

Race information

50 km
50k
Half Marathon
Half Marathon
10 km
10k
5 km
Visit the organization's website for the most recent information.
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