In 12 days · Sun, Sep 6, 2026
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Sunday, September 6th, 2026
Old Foresthill Rd, Auburn CA
Half · 10K
61–89°F · low rain risk
See last 10 years
On this date: rain 0 of the last 10 years
2025
58–82°F
dry
2024
66–99°F
dry
2023
57–82°F
dry
2022
71–112°F
dry
2021
60–98°F
dry
2020
70–109°F
dry
2019
63–89°F
dry
2018
59–87°F
dry
2017
70–88°F
dry
2016
56–87°F
dry
Best months to race in California →
Race-day forecast · Sunday, Sep 6
Sunny · 66–99°F
Sunday, Sep 6starts near 66°F · 3% chance of rain · wind up to 8 mph
About this race
🏞️ Race Overview
"Standard distance. Mammoth vert."
Mammoth Bar Trail Runs take place on the single-track and double-track trails of Mammoth Bar OHV Area in Auburn State Recreation Area, in the Endurance Capital of Auburn, California.
⛰️ Course Features
- Terrain: Steep climbs and descents.
- Scenery: Beautiful American River Canyon views.
- Elevation: More vert per dollar!
- Unique: These are not your average courses.
📅 Event Details
Date: 2026-09-06
Location: Old Foresthill Rd, Auburn, CA
🔗 More Information
For additional details, visit the official race page: Mammoth Bar Trail Runs.
Course map
Train with a club
Run clubs near Auburn to train with before race day.
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