Trail Running calendar near Chico 2025-2026

Tackle 100 miles in Cool, California on alternating lap loops through scenic singletrack and fire roads. Well marked with aid stations and crew access at the start, finishers earn a handcrafted Comstock Heritage buckle and medal.

Run a scenic loop through Susan River Canyon on the Bizz Johnson and Southside Trails, with 22K, 14K and 7K options. Limited to 150 runners, finishers get a custom medal and microfiber towel and riverside postrace refreshments.

Run scenic singletrack and river canyons around Downieville, California in the Lost Sierra Endurance Race with 25K, 50K, and 100K options. Rugged mountain trails, solid aid support, and a lively finish await.

Join the new Mammoth Bar Trail Runs on Sept 6, 2026 in Auburn CA with Half Marathon and 10K on single track and double track trails. Expect steep climbs, thrilling descents and sweeping views of the American River Canyon.

Run the Gold Rush Growler Trail Runs on September 19, 2026 at Granite Beach for scenic shoreline and single track trails with 5K and 10 mile options. Finishers receive a commemorative beer glass and ages 21 and up can enjoy a local IPA at t..

Signal Peak Trail Runs on Oct 3, 2026 near Nevada City offer 50K and 24 mile out and back courses featuring technical, rocky terrain. The 50K adds a summit loop up Signal Peak with sweeping views of Bear Valley and Lake Spaulding.

Sunset & Cider Trail Races in Auburn CA this October offer 50K, half marathon and 5 mile trail options along the American River canyon. Finish with a commemorative cider glass and locally crafted pours from Ponderosa Cider.

Euchre Bar Massacre is a fatass style adventure run along the Wild and Scenic North Fork of the American River. Choose 25 or 50 miles, expect remote support, big climbing and rugged riverside trails for a raw endurance challenge.

Join the inaugural Champion Mine Trail Race in Nevada City for a scenic half marathon or 5K through pines, along Deer Creek, and across a historic swinging bridge. Enjoy stocked aid stations and a locally made finisher medal.

Run the historic Bizz Johnson Trail in Susanville on Oct 11, 2026 with 50K, marathon, express half and 10K options. Point to point courses with bused starts, river crossings and tunnels, plus a Boston qualifying marathon.

Join the Heart of Cool Trail Run in Cool, California on Oct 17, 2026 for 5k, 10k or trail half marathon options. Family friendly and charity focused, proceeds benefit local youth programs and a heart disease camp scholarship.

Run Upper Bidwell Park in Chico at the Fleet Feet Fall Classic Trail. Choose a hilly half marathon with a scenic downhill finish or the looped 4 mile endurance challenge with creek crossings and repeatable laps.

Join The Rubicon, an informal fatass group run deep in the Sierra Nevada around Oxbow Reservoir. Choose from progressive 15 mile, 30 mile or 43 mile routes across on and off trail terrain with big climbs and water crossings.

Join the 25th Rio 100 and 5th Rio 50K at Beals Point in Granite Bay on November 7 and 8, 2026. Scenic Folsom Lake and Johnny Cash Trail routes, strong on course support, and festive food and beer create an unforgettable endurance weekend.