ROCK IT ON THE RIDGE!
Come join us in San Ramon! These are definitely trail "runs," but virtually everyone will be walking some of it. Walkers and hikers are always welcome.
The 5K has one big climb and the 10K climbs up a bit higher to get up onto to Rocky Ridge Trail before going all down to the finish line. The half marathon is essentially a large figure-8 that will take you up and out of the valley, over to the east side then come back, up to the Rocky Ridge Trail and finish. If you weren't sure if you were really a trail runner, you will be after this one!
And if you have never been to Las Trampas Wilderness before, you will discover a whole new world of great trails and sweet views!
Registration fees
Where pricing applies, shown amounts include mandatory charges, items, and fees.
5K Closed
Online registration closed-
- Online registration closed
10K Closed
Online registration closed-
- Online registration closed
Half Marathon Closed
Online registration closed-
- Online registration closed
Remote Runner Closed
Online registration closed-
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$50.29
Early
Jan 18 – Jul 15 -
$55.63
Regular
Jul 16 – Sep 19
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International Remote Runner Closed
Online registration closed-
This is for our international runners who will receive their remote packages in their homes across the world via USPS.
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$76.98
Early
Jan 18 – Jul 15 -
$82.31
Regular
Jul 16 – Sep 19
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Event schedule
- Sat, September 19, 2026 7:00 AM - Hiker start (for those walking the half marathon, planning to take longer than 3.5-4 hours)
- Sat, September 19, 2026 8:00 AM - Half Marathon
- Sat, September 19, 2026 8:15 AM - 10K
- Sat, September 19, 2026 8:30 AM - 5K
Contact information
- Event contact
- Race Director
- Website
- Visit website
