Reservoir Dogs

Briones Reservoir anchors this event, and Reservoir Dogs offers a rare opportunity on dirt: the "first trail-running event allowed to completely circumnavigate" it on the serene, usually permit-only EBMUD trails. The atmosphere is distinctly East Bay, featuring rolling open fire roads, tree-covered single-track, and a steady progression through "quintessentially East Bay environments" instead of a single prolonged challenge. The course begins and concludes at San Pablo Reservoir Recreation Area, then traverses faster, lower-elevation terrain that remains challenging by design. Anticipate "sweeping views of the watershed lands" and a "substantial length of single-track trail," features not commonly found on every EBMUD property. This race suits runners who appreciate runnable trails, varied footing, and a route that feels unique because the full loop is typically inaccessible for individual exploration.