Graniterock River Run
Hollister, CA
Sat, Sep 12, 2026
In 20 days · Sat, Sep 12, 2026
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Saturday, September 12th, 2026
Southside Sand and Gravel Quarry, Hollister CA
See race page
57–80°F · low rain risk
See last 10 years
On this date: rain 0 of the last 10 years
2025
55–75°F
dry
2024
57–78°F
dry
2023
55–73°F
dry
2022
60–80°F
dry
2021
57–86°F
dry
2020
54–88°F
dry
2019
55–93°F
dry
2018
50–71°F
dry
2017
61–81°F
dry
2016
54–68°F
dry
Best months to race in California →
About this race
Event Overview
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 1 Mile untimed fun run.
Unique Experience
The River Run 2026 is a unique experience that meanders through a working sand and gravel quarry.
- Location: Inside the Southside Sand and Gravel Quarry.
- Sights: The banks of the San Benito River.
- Equipment: Specialized equipment that processes the rock.
- Surroundings: Beautiful natural surroundings.
Event Details
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 7:00 a.m.
Pricing Information
Pricing is available for individuals or families. The family pricing option is available for families/groups of 4 or more participants.
Location and Parking
The event is located at the Graniterock Sand and Gravel Quarry at 5632 Airline Highway, Hollister, CA 95023. Free parking is available at the race site.
Registration
For more information and to register, please visit the official event page: Graniterock River Run.
Course map
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Run clubs near Hollister to train with before race day.
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