Logo

Cool Moon 100 Mile Endurance Run

Cool, United States • 14 Jun 2025

The Cool Moon 100 Mile Endurance Run is a challenging ultramarathon held in Cool, California. The race features a 100-mile course composed of four loops of two distinct trails: a 13.5-mile North loop with approximately 2,200 feet of elevation gain, and an 11.5-mile South loop with about 1,150 feet of elevation gain, totaling around 13,600 feet of elevation change. The course includes single track and fire roads, running through scenic backcountry and historic trails. Runners have a generous 37-hour cutoff to complete the race and earn a unique silver buckle crafted by a renowned silversmith. Aid stations and drop bag locations support participants throughout the event. Visit the organization's website for the most recent information.

United States California Cool

Race information

Website Registration
100 mi
13600 m+
100 Mile
Visit the organization's website for the most recent information.
Trail runs nearby

Gold Rush 10M Trail Run

Granite Bay - 11 mi from Cool

Gold Rush Growler Trail Runs at Granite Beach, Folsom Lake SRA, offer a 10-mile trail run and a 5K along the shoreline and trails. For 2025, the courses are new: the 5K starts at Granite Beach, to Oak Point and Old County, then returns on new and old trails; the 10-mile route starts at South Granite..

Rebels XC Challenge

Carmichael - 25 mi from Cool

Rebels XC Challenge is a cross-country running meet held in Carmichael, California, at 6700 Tarshes Drive. The event is scheduled for September 20, 2025, and offers three divisions: Women’s Race, Masters Men, and Open Men. Distances are not listed on the page, and course specifics aren’t described,..

Sunset & Cider Trail Races

Auburn - 3 mi from Cool

The Sunset & Cider Trail Races take place on September 27, 2025, in Auburn, California. The start and finish are at Ponderosa Cider Co, 102 Gum Lane, near Auburn Overlook Park. The event is presented by BAD LUCK RUN CLUB and is set on trails along the American River Canyon. 50K - two out-and-..

Auburn Half Marathon

Auburn - 3 mi from Cool

Set in Auburn, California, just off Highway 80 in Gold Country, the Auburn Half Marathon is a trail-running event offering three distances: a half marathon, 12K, and 5K. Runners depart from Overlook Park, head toward Robie Point, cross No Hands Bridge, climb toward Cool, and loop back to finish at O..

Yuba Gold Trail Runs

Nevada City - 26 mi from Cool

Yuba Gold Trail Runs takes place near Nevada City, California, in gold country. The event offers 50K, 35K, and Half Marathon distances along a historic route with views of the South Fork Yuba River and the Malakoff Diggins site. It’s an Independent P2P (DIY/self-guided) adventure rather than a tradi..

Mile Madness Endurance Run

Rocklin - 13 mi from Cool

...

Mile Madness Endurance Run takes place at Sunset Whitney Recreation Area in Rocklin, California. The race uses a 1.05-mile loop (85% dirt, 15% paved) with about 62 feet of elevation per lap and a central Start/Finish hub. Runners choose from 6-, 12-, 24-, 48-, or 72-hour events, plus a 100-mile chal..