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.
Registration fees
Prices are inclusive of mandatory charges, items, and fees
50K
Registration closes in 22 days 18 hours-
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$159.17Oct 12 – Jan 26
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$169.85Jan 27 – Mar 9
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Register for 50K$180.52Now registering Mar 10 – Apr 5
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HALF MARATHON
Registration closes in 22 days 18 hours-
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$105.80Oct 12 – Jan 26
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$111.14Jan 27 – Mar 9
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Register for HALF MARATHON$116.47Now registering Mar 10 – Apr 5
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10K
Registration closes in 22 days 18 hours-
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$86.58Oct 12 – Jan 26
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$91.92Jan 27 – Mar 9
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Register for 10K$97.26Now registering Mar 10 – Apr 5
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5K
Registration closes in 22 days 18 hours-
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$76.98Oct 12 – Jan 26
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$82.31Jan 27 – Mar 9
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Register for 5K$87.65Now registering Mar 10 – Apr 5
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REMOTE RUNNER
Price changes in 8 days 9 hours-
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Register for REMOTE RUNNER$50.29Now registering Oct 12 – Mar 21
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$55.63Mar 22 – Apr 5
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BBQ ticket
Registration closes in 22 days 18 hours-
BBQ lunch plate from Slow Hand BBQ
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Register for BBQ ticket$23.60Now registering Oct 12 – Apr 5
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Event schedule
- Sat, April 5, 2025 6:30 AM - 50K RACE START
- Sat, April 5, 2025 8:30 AM - HALF MARATHON RACE START
- Sat, April 5, 2025 9:00 AM - 10K RACE START
- Sat, April 5, 2025 9:30 AM - 5K RACE START
Contact information
- Event contact
- Jasmin Fiandaca
- Website
- Visit website
