SportsRunning

Diablo Trails Challenge

Name: Diablo Trails Challenge
Start: 2026-04-04T00:00:00-07:00
Location: Walnut Creek, California

Sat, 4 Apr 2026

Walnut Creek, California

Maps

Outdoor

About

Brazen Racing's Diablo Trails Challenge offers multiple trail-running distances in Walnut Creek: 5k, 10k, half-marathon, 50k and Ultra. Expect rugged hills and scenic Diablo foothills, presenting a true test for casual runners through to ultrarunners.

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Tagstrail-running ultra race California outdoor endurance

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