Cuyamaca 100K
Cuyamaca 100K traverses oak woodland, pine forest, chaparral and desert-edge trail near San Diego, with a 19-hour limit and live pods each October.
Every link above goes to the race, its timing provider, or an official registration partner. Last checked July 22, 2026.
Quick facts
- Saturday race on October 3, 2026
- Nineteen-hour course limit
- Trail qualifier required for entry
- Runner tracking pods planned for race safety
About the Cuyamaca 100K
Cuyamaca is a standalone 100K endurance run with qualifying requirements and a 250-runner field. Its race headquarters and results history are specific to this distance.
Course
The 100-kilometre route crosses Cuyamaca Rancho and a portion of Anza-Borrego State Park. Varied ecosystems, trail surfaces and sustained climbing make pacing complex.
Race-day weather
Early October may bring dry heat, strong sun, cold nighttime air or mountain wind. The course's elevation and desert edge create sharper variation than coastal San Diego.
Past Cuyamaca 100K dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2026 | Saturday, October 3, 2026 | Upcoming | — |
| 2025 | — | Completed | Open results |
Cuyamaca 100K FAQ
When is the Cuyamaca 100K?
The 2026 Cuyamaca 100K is on Saturday, October 3, 2026.
How do I register for the Cuyamaca 100K?
You can register for the Cuyamaca 100K at cuyamaca100k.com.
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