Trail Running calendar near Fullerton 2026-2027
We have found 118 Trailruns within 80 miles of Fullerton. See below where and when you can find the races.
We have found 118 Trailruns within 80 miles of Fullerton. See below where and when you can find the races.
Experience an obstacle course race at Oak Canyon Park featuring a 5 km course with over 15 obstacles and a Mini Monkey Run for kids. Enjoy a festive atmosphere with music, food, and free spectator access.
A 28k trail run in Fremont Canyon at Irvine Regional Park featuring about 3800 feet of elevation change and four aid stations. The course runs on fire roads, is cupless, and participants are asked to carry personal hydration.
A last person standing race in Yucaipa, CA, where runners complete 4.16-mile loops until only one remains. The event, scheduled for December 2026, features a Krampus-themed challenge of endurance.
Traverse the entire Backbone Trail in the Santa Monica Mountains during this 68 mile ultra. Choose between a solo run or a relay team and experience over 13,000 feet of elevation gain with Pacific Ocean views.
Experience an obstacle course race in a mountain rimmed valley at Lake Perris. Choose from 5K, 10K, or 21K distances on a flat and fast course within the rugged wilderness of the Greater Los Angeles area.
Experience the trails of Daley Ranch at The Ranch 50K and Half Marathon in Escondido. This SoCal Ultra Series event features challenging loops with significant elevation gain and fully stocked aid stations.