Trail races across Southern California, from 10K to 100 miles. Great courses, incredible volunteers, and so much fun to be had.
Filter by distance to find the race that fits you, then register in two taps.
Exceptionally well-marked Orange County wilderness singletrack with legendary support and swag.
Out-and-back on secret singletrack and fire road with a summit visit to the Hollywood Sign.
Rugged coastal singletrack with breathtaking ocean and valley vistas and serious climbing.
Festive trail races on the historic Paramount Ranch movie-set course. Date to be confirmed.
A rugged Santa Monica Mountains classic and WSER & Angeles Crest qualifier. Carry your own hydration.
Spectator-friendly looped format on a rolling 2-mile loop, solo or relay, distance or timed.
A tough, rugged spring tour of Griffith Park across freshly updated courses. Date to be confirmed.
The founding event, a 30+ year-old WSER qualifier on high-desert divide terrain.
4,500 acres of Trabuco and Live Oak Canyons, shaded singletrack beneath sycamore and live oak.
Challenging, rewarding singletrack and fire road along the coastal ridges of the Santa Monicas.
Scenic Orange County park trail races with a supportive, tight-knit community. Dates coming soon.
Keira Henninger has been putting on Southern California's most-loved trail races since taking over the historic Leona Divide in 2009. A former Team Patagonia ultrarunner, coach, and nutritionist, she builds every race around what runners actually care about: bomber course marking, generous aid stations, and a start-line energy that feels like a family reunion.
From your very first 10K to a 100-mile buckle, you'll find a race here that meets you exactly where you are — and a community that celebrates every finish line.
KH Races partners with the Santa Monica Mountains Trails Council and OC Parks on trail-work days all season. Come dig, clip, and build the singletrack you love to race — no experience needed.
Every KH race registers through UltraSignup. Hit Register on any race card above and you go straight to that race's registration page — pricing, waivers, and distance selection all live there.
Start with a 10K or Half Marathon — Caspers, O'Neill, and Griffith Park all offer welcoming shorter distances on beautiful, well-supported courses. Use the distance filter above to see your options.
Some races don't provide disposable cups at aid stations to cut waste. Bring a handheld bottle or soft flask and our volunteers will happily fill it. Better for the trails, better for your race.
Absolutely, and we love you for it. Join our volunteer Facebook group or DM us on Instagram — aid-station crews and trail-work days are the heartbeat of KH Races.