Course Distances
12M
About this race
Mountain Tiger Diablo is a 12.4 mile loop straight up to Mount Diablo summit and back down an equally steep and scenic descent.We believe hard mountain runs that don't take the commitment of ultramarathons are the best. After launching Mountain Tiger Donner Summit in 2025, we're introducing our second race: Mountain Tiger Diablo, bringing the same rowdy spirit to the most badass mountain in the bay.The 12 mile route is brutal, beautiful, relentless and exhilirating – all the things we love about raw mountain running.
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