Diablo Trails Challenge 50K/Half Marathon/10K/5K


Apr 11, 2020 at 7:00 AM

Diablo Trails Challenge 50K/Half Marathon/10K/5K

1700 Castle Rock Rd

Walnut Creek CA, 94598


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Entry Fee $48
(Lowest or Early Registration)

Entry Fee 2 $125
(Highest or Late Registration)

Prize Money: no


  • 10K
  • 13.1M
  • 50K
  • 5K

Type: Ultra

Starting Elevation: 540

High Point: 2250

Percent of the course on un-paved trails: 100%

First Year of the Event: 2001

Men's Record: 50K: Brett Rivers, 4:06:21 (2014)

Women's Record: 50K: Katie Murphy, 5:01:54 (2014)


For over 40 years, Save Mount Diablo has worked tirelessly to preserve and increase the open space on and around Mount Diablo. In that time, their efforts have taken us from 6,788 acres of open space to over 100,000 acres of open space on and around the mountain! With distances suitable for everyone from those hitting the trails for the first time to experienced ultra-runners, the Diablo Trails Challenge was created to help celebrate and support these achievements. A portion of all entry fees will go to Save Mount Diablo to help them continue preserving open space and trails for all of us to enjoy.


No photos available.


Past Event Dates

Held on Apr 11, 2020

Held on Apr 13, 2019

Held on Apr 14, 2018

Held on Apr 15, 2017

Held on Apr 08, 2016

Held on Apr 19, 2015

Held on Apr 19, 2014

Held on Apr 20, 2013

Held on Apr 21, 2012

Held on Mar 19, 2011

Held on Mar 20, 2010

Held on Nov 02, 2008

Held on Nov 05, 2006