Trail Running calendar near Simi Valley 2025-2026

The Nature Made Great Race is an annual running event held in Agoura Hills, California, near Los Angeles. Celebrating over 40 years, it features multiple race distances including the Chesebro Half Marathon, Old Agoura 10K, Deena Kastor 5K, and a 1-mile fun run. The half marathon course offers scenic..

The Leona Divide is a challenging trail running event held in Lake Hughes, California, at The Lakes Community Center. It offers multiple race distances including 30K, 50K, 50-mile, 100K, and 100-mile options, with the 100K and 100-mile races serving as Western States 100 qualifiers. The course featu..

Coyote Two Moon is a challenging trail running event held in the scenic Los Padres National Forest near Ojai, California. The race offers a variety of distances ranging from a 10K fun run to ultra distances including 30K, 55K, 55 miles, 100K, and a grueling 100-mile course. The ultra courses feature..

The Boney Mountain Trail Run is a scenic trail running event held in the Santa Monica Mountains, starting at Rancho Sierra Vista | Satwiwa National Park in Newbury Park, California. It features a challenging half-marathon course that includes creek crossings, single-track climbs, and stunning ocean..

The Saddleback Marathon, held in Silverado, California, is a premier trail running event set in the scenic Saddleback Mountains within the Cleveland National Forest. Offering marathon, half marathon, and 10K distances, the race features challenging courses with significant elevation gains—4,244 feet..