Simi Valley
Trail Running Calendar near Simi Valley 2026-2027
Explore the top trail runs near Simi Valley for 2026-2027! We've gathered 26 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
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.
Collegiate invitational at Santa Clarita Central Park on October 3, 2026, featuring men's 8 km and women's 6 km races with free registration.
Halloween-themed running at West Creek Park in Valencia with 5k, 10k, 15k and half marathon loop courses, aid stations, and custom finisher medals.
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 Malibu’s Backbone Trail covering about 69 miles with roughly 13,000 ft of elevation gain and options for runner or weighted categories.
A 3 mile cross country run on the Villanova Preparatory campus in Ojai featuring hilly dirt terrain, electronic timing, 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
An in-person half marathon on Runyon Canyon trails in Los Angeles on Saturday, December 5, 2026, with tickets listed at 0.00 USD.
Holiday themed event at West Creek Park offering 5k 10k 15k and a half marathon on December 6 2026 with marked looped courses and aid stations each loop.
January 2027
February 2027
Trail races at Will Rogers State Historic Park offering looped distance and timed options on a rolling two mile course in Pacific Palisades.
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 martial arts themed set of races on April 3, 2027 in Canoga Park, CA offering 5K, 10K, a 13.1 mile half, and a virtual option.
Annual Great Race in Agoura Hills offering distances from one mile to a half marathon, multi-race challenges, scenic routes, and a large post-race party.