North Fork American..
Trail Running Calendar near North Fork American River 2026-2027
Explore the top trail runs near North Fork American River for 2026-2027! We've gathered 58 exciting trail runs in the area. Check out our detailed list below to find your next local trail run.
March 2027
An hourly backyard ultra on Dry Creek Parkway near Sacramento where runners repeat a 4.16 mile loop until only one completes the most yards. Each loop must be finished within the hour and the last runner to complete a loop wins.
Trail races of 5K, 10K, half marathon and 35K on the Western States trail near Auburn, CA, featuring steep climbs, technical single track, cupless aid stations, and chip timing.
April 2027
A women only 10K trail loop in Auburn with aid stations, age group awards, packet pickup the day before, and travel prizes to Spain awarded by placement and random draw.
Outlands is a two day endurance event in Pilot Hill, California on April 17 and 18 2027, featuring 25K, 50K and 50M trail runs plus a 50K mountain bike course over single track and double wide trails.
Trail races inside Marshall Gold Discovery State Historic Park in Coloma offering distances from a kids run to a half marathon on marked singletrack and looped courses.
Trail races from 25 km to 100 miles around Auburn, California on sections of the Western States Trail with UTMB and Western States qualifying status.
Inaugural Harvest & Howitzer Backyard Ultra April 30 to May 2, 2027 on a private California farm where runners complete a 4.167 mile loop every hour until one remains.
May 2027
Mud Factor's Seriously Fun 5K mud and obstacle run returns to Mahon Ranch in Elk Grove on May 16, 2027, with adult and KIDZ family waves and required waivers for participants.
June 2027
Robie Point hosts a one-mile relay with Solo, Duo, and four-person teams plus a multiweek 100 mile challenge, awards, tracking, and trail-side vendors.
July 2027
Iron X is an extreme ironing half marathon in Auburn CA where runners carry an ironing board and battery iron and perform timed irons at multiple local landmarks.
August 2027
Trail 5K and 10K at Granite Beach on August 22, 2027, open to runners, walkers, and their dogs with medals for finishers and bandanas for dogs.
Weekend obstacle race at Mahon Ranch, Elk Grove, featuring Sprint 5 km, Super 10 km, kids races, Hurricane Heat formats, and spectator access.
September 2027
Timed looped ultra event in Auburn CA offering races from 3 hours up to 72 hours with aid stations, food trucks, buckles, SWAG, and a family UltraLounge.
November 2027
Trail runs at Darrington Head near Folsom Lake offering 5K, 10K, 18M and 36M on rocky single-track with aid stations, marked course and a 10 hour limit.