Cuyamaca 100K Endurance Run
Julian, CA
- 100K
- Trail (Unpaved)
- Official race website
The majority of the Cuyamaca 100K course lies within the boundaries of Cuyamaca Rancho State Park approximately one hour east of San Diego. The course consists of three distinct loops, all of which start and end at Camp Cuyamaca off of Highway 79. Each loop covers a different set of … MORE
Local Historical Weather (Oct 03):
| 2025 | 2024 | 2023 | 2022 | 2021 | |
| H (°F) | 75 | 90 | 80 | 79 | 93 |
| L (°F) | 55 | 59 | 47 | 64 | 55 |
Find Nearby Lodging (hotel, rental, etc.):
World-class organization
If you are coming to SoCal for a destination trail race, the Cuyamaca 100k is it. It was my first “mountainous” 100k and I definitely got my money’s worth in … MORE
If you are coming to SoCal for a destination trail race, the Cuyamaca 100k is it. It was my first “mountainous” 100k and I definitely got my money’s worth in terms of difficulty. The field is top-notch, and the aid stations were like buffets, complete with experienced runners to help you out, mini pickle juice shots and themed costumes. The high winds at night in the desert and coyote sightings were a part of the experience, and only add to the allure of this race. The climbs up Mount Cuyamaca and during the second loop were killer. To finish is a big achievement, since mentally you have to be strong to not drop out at the beginning of each loop (the course is like a 3-petal Flower, with base camp in the middle). The swag was awesome—badass medal with a snake on it, a short sleeve shirt and zip hoodie, and a post-race burrito. I finished near the back of the pack so I can only speak from that experience, but I would highly recommend a night pacer if you are new to this race. Well done to the race organizers and would recommend to any trail runner seeking a challenge.