Reservoir Dogs Trail Run - Orinda, CA
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Event overview
The Reservoir Dogs Trail Run is a trail-running event on EBMUD lands around San Pablo and Briones Reservoirs near Orinda and El Sobrante, CA. The event takes place on Saturday, October 4, 2025, and offers three distances:
- 35K : 23.4 miles, ~2,800 ft elevation gain
- Half Marathon : 13.9 miles, ~1,450 ft elevation gain
- 10K : 6.2 miles, ~500 ft elevation gain
Most of the courses run on dirt trails and fire roads with single-track sections and rolling hills. Courses are marked with colored ribbon, laminated signs, and occasional flour arrows. Hiking poles are permitted. Disposable timing chips are used on bibs.
Logistics and services
The 2025 start location is the San Pablo Reservoir Visitor Center, 7301 San Pablo Dam Rd, El Sobrante, CA. Parking is available at the visitor center with a $7 fee; the park prefers exact change but accepts credit cards. The event capacity is 300 runners across all distances. The 35K has a 6.5 hour time limit and organizers state that all runners must be off course by 2:30 PM.
Early bib pickup is available Friday, Oct 3 (Sports Basement, Berkeley). Race-morning check-in and bib pickup are provided. Dogs are not permitted. Aid stations supply energy gels, snacks, electrolyte drink mix, water and basic first aid; runners are encouraged to carry at least one 20 oz bottle. The event is cupless; runners must carry a reusable cup (collapsible cups available for purchase). Awards include custom trophies for top overall finishers and medals for all finishers and age groups. Registration closes the day before the race. Visit the organization's website for the most recent information.