Graniterock River Run 2026

The race.

The Graniterock River Run takes place on September 12, 2026, in Hollister, CA, at the Graniterock Sand and Gravel Quarry. Participants can choose a 5K run/walk or a 1-mile fun run/walk, with both offered as individual or family registrations for groups of four or more. Check-in begins at 7:00 a.m., with the race starting at 8:00 a.m. The course runs through the working quarry site and along the San Benito River. Free parking is available at the race location, 5632 Airline Highway. Proceeds benefit the YMCA of San Benito County.