Simi Valley
Trail Running Calendar near Simi Valley 2026-2027
Explore the top trail runs near Simi Valley for 2026-2027! We've gathered 28 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
September 2026
A one-day cross country meet in Santa Clarita on September 5, 2026 featuring a 4K open race for runners 19 and older with a $15 entry fee.
A 3-mile community race at University Regional Park near the Scary Dairy with chip timing; proceeds benefit the high school cross country program.
A 10k trail race in Topanga on Sept 19, 2026 featuring steep fireroad climbs, a half mile singletrack, aid stations, a beer garden, and a non timed Hiker's Delight.
Trail races of 50K, 30K and 15K through Rocky Peak, Las Lljas and Tapo Canyon around Corriganville Park in Simi Valley, CA.
October 2026
SEB Mud Run in Castaic on October 3, 2026 features a chip timed 4 mile mud obstacle and a 1 mile kids fun run with showers and changing tents on site.
A stair-climbing event in Central Park, Santa Clarita on October 10, 2026 to raise awareness for rare diseases; registration fee $20 and donations accepted.
Trail races in Cheeseboro Canyon offering 50k, Half Marathon and 10k courses across varied singletrack, fire roads and scenic climbs with aid stations and post-race festival amenities.
November 2026
The 30th Patagonia Salmon Run in Ventura on November 15, 2026 is a 3.14-mile event supporting Santa Barbara Channelkeeper with a zero-waste focus and limited online registration.
A multi-day trail event on the Backbone Trail in Malibu covering roughly 69 miles with about 13,000 ft of elevation and categories for runner, light, heavy, and volunteer.
A 3 mile cross country run on the Villanova Preparatory campus in Ojai with mostly dirt trails, rolling and steep hills, finisher medals and limited T shirts.
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 running in Valencia on December 6 offering 5k, 10k, 15k and a half marathon on marked looped courses with aid stations and finisher medals.
Five trail distances at Paramount Ranch on December 19, 2026, run on singletrack and fire road with mapped elevation profiles.
January 2027
A 68 miles ultra across the Backbone Trail in the Santa Monica Mountains with about 13,600 feet of climbing, solo or relay entries and a 200 runner cap.
February 2027
Trail running at Will Rogers State Historic Park in Pacific Palisades with distances from 10K to 100 mile and 6 12 and 24 hour timed 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.