Graniterock River Run
- Date
- September 12, 2026
- Distance
- 5K Run/Walk · 5K Run/Walk Family Registration · 1 Mile Fun Run/Walk & more
From the Organizer
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.
Events
Weather
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
81°
Typical Low
53°
Chance of Rain
2%
Based on US Climate Normals data from Hollister 2, 3 mi from the venue.
Host City
About Hollister, CA
Elevation
361 ft
Nearest Airport
MRY
Monterey Regional Airport · 32 mi
Major Hub
SJC
Norman Y. Mineta San Jose International Airport · 47 mi
Time Zone
Pacific Time
From Endurance Grid
Line up lodging and travel early to lock in your race weekend.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at Graniterock River Run, put it on the calendar, and turn “someday” into a start date.
96
Days to train
- Race
- Graniterock River Run
- Date
- September 12, 2026
Coming Up
More Running races near Hollister, CA
From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it's the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer's event page.
With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
Running
From 5K to marathon, running races are the most accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Frequently Asked Questions (FAQs)
- What is the Graniterock River Run?
- Graniterock River Run is a running race held in Hollister, California on September 12, 2026. It is one of the many endurance events listed on Endurance Grid, a multi-sport endurance event calendar covering running races, triathlons, HYROX, and more endurance sports across the United States. Find more running races near you or explore our sports guides to learn what race day actually feels like.
- When and where is the Graniterock River Run?
- Saturday, September 12, 2026 in Hollister, California at Southside Sand and Gravel Quarry, Hollister, CA. Check the event page for exact start times and wave schedules.
- How do I register for the Graniterock River Run?
- Registration is handled through the event's registration page. Confirm pricing and distances there, and sign up.
Graniterock River Run
Sep 12, 2026