Trail Running Calendar California 2026-2027

Run a scenic 50 mile point to point ultramarathon from Sunrise Trailhead to Stagecoach Trails RV Resort in Julian, CA, climbing Stonewall Peak and skirting lakeside trails before a desert finish. Family and crew friendly with aid, camping,..

A multi-distance trail event at Quarry Lakes following the Alameda Creek Trail, featuring flat, marked courses and a USATF certified Half Marathon. Aid stations are cupless and placed every 2–5 miles; park entrance is included.

Join the festive Krampus Cross Country in San Francisco with live and virtual options Dec 4 to 7 and the in person race on Dec 6. Pick 5K, 10K or the Naughty Nine Miler and take home a woodallion, tee and beer sampler stein.

The Hunter S. Thompson Fear & Loathing will take place in Midtown Terrace on Sunday 6 December 2026. You can run between 50 and 50 miles.

Trail races at Crystal Cove State Park with 6k, 15k and a Kids 1k course near the beach. The 15k includes technical features and a $2,000 prize purse, with aid stations stocked by Skratch Labs.

Hit the trails in San Diego on December 20, 2026 for the Dirty December Trail Run, featuring marathon, half marathon, 10K and a new Hill Climb six hour challenge up and down Cardiac Hill. Wear a costume for solo or team awards and vie for K..

Take on the 68 mile Backbone Trail in the Santa Monica Mountains on January 16, 2027, with 13,600 feet of climbing and epic coastal views. Field capped at 200; solo entries require a prior 50 mile finish, relays of two to four welcome.