Trail in Contra Costa County, California | 2026-2027

Reservoir Dogs Trail Run [ultrasignup.com]
Sat, Oct 04, 2025

5k 10k 35k Half Marathon Run Trail
Contra Costa County, California, United States
OpenStreetMap Google Maps

Wildcat Half Marathon [finishers.com] - Facebook
Sat, May 30, 2026

Half Marathon Run Trail
Contra Costa County, California, United States
OpenStreetMap Google Maps
Berkeley Trail Adventure [insidetrail.com] [Register at ultrasignup.com] - Facebook - Instagram
Sat, Sep 12, 2026

10k 35k 50k Half Marathon Trail Ultra
Lake Anza Road, Contra Costa County, California, 94708, United States
OpenStreetMap Google Maps
Rocky Ridge 2026 [brazenracing.com] [Register at raceroster.com]
Sat, Sep 19, 2026 at 8:00 AM

Description

This is the race your momma warned you about! The half marathon cannot be described as "flat and fast" or "good for beginners" or with any other nice phrase. In fact, the phrases most commonly used...

This is the race your momma warned you about! The half marathon cannot be described as "flat and fast" or "good for beginners" or with any other nice phrase. In fact, the phrases most commonly used to describe it would be unprintable. But...once you finish the course, you will have experienced trails and seen views that few others ever will. And you will have a lifetime of bragging rights!

The Rocky Ridge Half Marathon is the finale for the 2025/2026 Ultra Half Marathon Series (series participation is not necessary to enter race).

The 10K and 5K are not quite as intense as the half marathon, but don't worry, those runners will also be challenged with some hills and rewarded with some rarely-seen vistas.

If you are one of those brave souls ready to face either victory occasion and face this beast, come join us!

5k 10k 21k Run Trail Virtual
Trapline Trail, Contra Costa County, California, United States
OpenStreetMap Google Maps

4 events in Contra Costa County, California

Description

Local Clubs & Organizations