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Diablo Trails Challenge

Name: Diablo Trails Challenge
Start: 2025-04-05
End: 2025-04-05
Location: Walnut Creek

Walnut Creek, United States • 5 Apr 2025

The Diablo Trails Challenge is an exciting running event taking place on Mount Diablo, featuring a variety of distances including a 50K, half marathon, 10K, and 5K. Scheduled for April 5, 2025, this challenge caters to runners of all experience levels, from beginners to seasoned ultra-runners. A portion of the entry fees supports Save Mount Diablo, an organization dedicated to preserving open spaces around the mountain. Participants can enjoy the scenic trails while contributing to a worthy cause, making this event a celebration of both fitness and environmental stewardship. Visit the organization's website for the most recent information.

United States California Walnut Creek

Race information

Website Registration

50 km

50k

13 mi

1/2 Marathon

10 km

10k

5 km

Visit the organization's website for the most recent information.

Trail runs nearby

Saturday Mar 8

Marin Ultra Challenge

Sausalito - 23 mi from Walnut Creek

50 km

50 mi

The Marin Ultra Challenge is a premier long-distance trail race held in Marin County, featuring a 50-mile and a 50K course. Scheduled for March 8, 2025, the event showcases some of the most scenic trails in the region, including the Marin Headlands, Mt. Tamalpais, and Muir Woods.Participants can exp..

Sunday Mar 9

Zoom Angel Island

Belvedere Tiburon - 21 mi from Walnut Creek

Zoom Angel Island is a running event taking place on Angel Island, California, featuring multiple race distances: 5 miles, 10 miles, and 15 miles, along with a free Kid's Run for children aged 6 and younger. The event offers scenic trails with stunning views of Marin County and San Francisco. Partic..

Fri - Mon Mar 14-17

The Rattlesnake Ramble

Santa Venetia - 26 mi from Walnut Creek

The Rattlesnake Ramble is a running event featuring a 5K, 10K, and Half Marathon, available in both live and virtual formats. Scheduled for March 14-17, 2025, the event takes place at China Camp State Park in Santa Venetia, California. Participants can choose from various trail courses, each offerin..

Sat - Sun Mar 22-23

The Big Alta

Lucas Valley-Marinwood - 28 mi from Walnut Creek

28 km

50 km

The Big Alta is an exciting trail running event taking place in Marin County, California, organized by Freetrail and Daybreak Racing. Participants can choose between two challenging distances: a 50K and a 28K, both featuring scenic single-loop courses that showcase breathtaking views of the San Fran..

Saturday Mar 22

Redwood (Spring) Trail Run

Oakland - 13 mi from Walnut Creek

...

The Redwood (Spring) Trail Run is an exciting running event taking place in Oakland, California, featuring a variety of race distances including a Half Marathon, 5-mile, 30K, Marathon, and 50K, along with youth categories and a free Kid's Run. Set against the stunning backdrop of Redwood Regional Pa..

Saturday Mar 22

Diablo Nomadic Challenge 22.5K

Clayton - 7 mi from Walnut Creek

22 km

The Diablo Nomadic Challenge 22.5K will take place in Clayton on Saturday 22 March 2025. You can run 22 kilometers.