Simi Valley
Trail Running Calendar near Simi Valley 2026-2027
Explore the top trail runs near Simi Valley for 2026-2027! We've gathered 21 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
August 2026
Two days of mud and obstacles in Moorpark on a 5K course with 15 major obstacles, rinse stations, and a Basecamp area with food trucks, vendors and music.
September 2026
Trail race in Simi Valley on Sept 26, 2026 offering 50K, 30K and 15K courses through Rocky Peak, Las Lljas and Tapo Canyon.
October 2026
Halloween themed 5k, 10k, 15k and half marathon at West Creek Park in Valencia on October 4 with looped courses, aid stations, medals and race day registration.
Trail races in Agoura, CA offering 50K, half marathon and 10K on Chesebro Canyon terrain with stocked aid stations, medals and post race food
November 2026
The 30th annual Patagonia Salmon Run takes place in Ventura on November 15, 2026, as a 5K (listed at 3.14 miles). Online registration is required, the event aims for zero-waste, and a Patagonia store discount is available to bib holders.
A Thanksgiving Day community run in Santa Clarita offering a 5K cross country course through Central Park and a 1K for children. The event benefits the Santa Clarita Track Club and awards medals to the first 600 competitors.
December 2026
Holiday-themed Jingle Bell races in Valencia on December 6 offering 5k, 10k, 15k and a half marathon on marked looped trails with aid stations and finisher medals.
January 2027
A 68-mile trail ultra across the Backbone Trail in the Santa Monica Mountains on Jan 16, 2027, capped at 200 runners; solo entrants need a prior 50-mile finish and relay teams are allowed.
February 2027
Timed 24 hour, 12 hour and 6 hour events plus set distances on a 2.2 mile loop at Will Rogers State Park in Pacific Palisades, CA, with relay and crew options.
A family friendly run and walk in Valencia CA featuring 1K, 5K and 10K options plus virtual races. The USATF certified course runs along the South Fork River Trail and proceeds support Students Off And Running with an expo and festive activities.
March 2027
Trail running event in Valencia California on 03/20/2027 offering 10K, Half Marathon, and 50K Ultra across hills, ridgelines, and canyon terrain with views of the Santa Clarita Valley.
April 2027
A multi-distance running event in Agoura Hills with half marathon, 10K, 5K, 1 mile and multi-race challenges, held around the Santa Monica Mountains with a large post race party.
Multi-distance trail event in Ojai, CA with 100 mile and shorter races on Los Padres National Forest trails, limited to 150 entries and specific qualification rules.
May 2027
Trail race in Placerita Canyon, Santa Clarita on May 1, 2027. Multiple distances from 1 mile to 60K, 6 and 12 hour categories, and team relays. Camping, cupless aid stations, and finisher medals are part of the event.
June 2027