Graniterock River Run
About this race
Please join us for the River Run back for a great 6th year in 2026. A family-friendly event that will be fun for everyone! You'll be able to run or walk a 5K distance or a 1Mile untimed fun run.
The River Run 2026 is a unique experience that meanders through a working sand and gravel quarry. The events take you inside the Southside Sand and Gravel Quarry to see the working quarry site, the banks of the San Benito River, specialized equipment that processes the rock, and beautiful natural surroundings.
River Run benefits the YMCA of San Benito County and begins promptly at 8:00 a.m. on Saturday, September 12th 2026. Check in begins at 7:00am.
Pricing is available for individuals or families. The family pricing option is available for families/groups of 4 or more participants.
The event is located the the Graniterock Sand and Gravel Quarry at 5632 Airline Highway, Hollister, CA 95023. Free parking is available at the race site.
Join fellow runners on September 12, 2026 for the Graniterock River Run. It's a fantastic 5K, 1.6K featuring a flat and fast course in Hollister.
Pick your distance
Running
5K Run/Walk
5K Run/Walk Family Registration
1 Mile Fun Run/Walk
1 Mile Fun Run/Walk Family Registration
Weather Overview
These values represent the 1-year monthly averages for September in Hollister.
About Hollister
Graniterock River Run takes place in Hollister, California, United States. The local timezone is America/Los_Angeles.
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🏃 Plan Your Next Race in Hollister
Find upcoming events by distance:
- Hollister 5K Races Best Hollister routes for beginners and speed work.
- Hollister Running Calendar 2026 See all upcoming race dates.
Race information has been sourced from the event's official website and other publicly available resources. For the most up-to-date details, please refer to the official website directly. If you notice any incorrect or missing information, don't hesitate to reach out to us by email.
