Trail Running calendar near Downieville 2026-2027

On June 20, 2026 at Sparks Marina runners complete a *4.167 mile* yard each hour until one person remains; mini Backyard races of 3, 6, 12, and 24 hours use the same rules and award finishers.

A historic 100.2 mile trail run from Olympic Valley to Auburn on June 27 and 28 2026, featuring high alpine and river crossings, large elevation change, and traditional belt buckle time standards for sub 24 and sub 30 hour finishes.

Experience an ultra trail run through the scenic forests between Lake Tahoe and Truckee. This 50 km loop features rocky summits and 4500 feet of elevation gain with full course support and post race festivities in Tahoe City.

A July 4 trail event at North Tahoe Regional Park finishing on Tahoe Vista Beach, offering 5K and 10K distances, a finish-area costume contest, post-race music and food, and age-group awards.

Iron X is an unofficial extreme ironing half marathon in Auburn, CA where participants run while ironing a button-up shirt at several designated locations; participants must be self-supported, carry their own gear, and record video proof.

A multi-distance trail endurance event on the Tahoe Rim Trail held July 18-19, 2026, offering 23K, 50K, 100K and 100 Mile options. The races are ITRA qualifiers with published time cutoffs and support local trail and community programs.

A trail event in Downieville, California with 25K, 50K, and 100K options on mostly singletrack. Courses include multiple aid stations, substantial elevation gain, and specific equipment and pacer rules for the 100K.

A 12.5 mile point-to-point trail race on Donner Summit near Soda Springs, CA, featuring four summits and about 3,300 feet of elevation gain. Entries include shuttle service, a raffle entry, and a finisher’s item.

Trail run in Auburn California on July 26, 2026 featuring 10.5 miles and 5.9 miles courses through single-track, dirt roads and a canal system with steep sections named Cardiac and Last Gasp.

A multi-loop trail marathon near Soda Springs, CA covering about 26.4 miles and 4,300 ft of gain across Royal Gorge land, with a central aid station, solo and relay options, parking at Soda Springs Ski Resort, and shuttle service to the aid..

An alpine trail event near Kit Carson, California offering multiple distances up to a 50K. The course sits near 7,400 feet with about 7,700 feet of elevation gain and features marked trails, aid stations, course maps and a commemorative fin..

A multi-distance trail event on August 22, 2026 around Jenkinson Lake with a 100-runner daily cap, starts at Scales Parking Lot and most races finish at the Waterfall Trailhead, with aid stations and a $5 day use parking fee.

An unmarked, off-trail peak-bagging event in Desolation Wilderness with three route options—11, 17, or 21 peaks—and minimal support. Participants navigate rugged talus, granite ledges, and creek crossings under a 30 hour time limit.

A trail event at Granite Beach on August 23, 2026 offering 5K and 10K courses for runners and their dogs, with finisher medals and dog bandanas; aid stations provide drinks and gels and dogs have their own water.

A community run in Tahoe Vista with a 5K and a 1 mile fun run across grass fields, paved bike paths and park trails. Parking and a participant hat are included, and proceeds support a park nonprofit.

Labor Day Dash 5k is a USATF sanctioned trail race at Hidden Valley Regional Park in Reno on September 5, 2026. Participants age 5 and up receive a t shirt and sticker and awards go to top finishers.

Trail races at Mammoth Bar OHV Area in Auburn State Recreation Area on September 6, 2026. Options include a 13.1 mile half marathon and a 6.2 mile 10K, each with notable elevation gain and staffed aid stations.

A point-to-point trail race around Emerald Bay in Lake Tahoe, covering about 7 miles / 11 km on mostly single-track terrain with moderate climbs, technical granite steps, scenic lake views, shuttle service, and standard race amenities.

Experience a scenic trail run through tall pines and aspens in Incline Village. Participants can choose between one or two laps on a course featuring creek crossings and a festive grass field finish.

A looped endurance event in Auburn, California from September 18–21, 2026 offering timed runs from 6 to 72 hours, a 100 mile race, glow run, and relay options on a one mile loop with full aid support.