Reservoir Dogs Trail Run - Orinda, CA

Reservoir Dogs Trail Run, held in Orinda, CA on October 4, 2025, features three distances—10K, Half Marathon, and 35K—starting and finishing at the San Pablo Reservoir Recreation Area in EBMUD land. This race was the first to completely circumnavigate Briones Reservoir on permit trails, offering tree-covered single-track, rolling fireroads, and sweeping watershed views that feel remote yet accessible from the East Bay. Course elevation ranges from about 575 to 2,850 feet, with a design that favors fast segments on technical dirt.

The event is cupless with dedicated aid stations; dogs are not allowed; timing is chip-based and finishers receive awards. Visit the organization's website for the most recent information.