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American River 50 Mile Endurance Run

Apr 4, 2026
Folsom, CA
50M25M
Typical Weather
Folsom, CA · Apr 4
71°
High
49°
Low
11%
Precip

Based on data from station USW00023271 (15 mi away)

About This Race

The American River 50 Mile Endurance Run, one of the nation's most historic and celebrated ultramarathons, invites runners to Folsom, California, on April 4, 2026, for an unforgettable journey along the scenic American River. This iconic point-to-point race, also featuring 25-mile and 10-mile options, is a renowned test of grit for both seasoned ultrarunners and ambitious novices, with the 50M course serving as a qualifier for the prestigious Western States 100.

The 50-mile adventure begins at Folsom Point, leading runners through a diverse landscape that includes service roads, singletrack trails, and paved bike paths, offering breathtaking views of the American River, lush greenery, and local wildlife. Expect rolling hills and a significant 6,332 feet of elevation gain, culminating in the notorious "Last Gasp" climb before a triumphant finish at Overlook Park in Auburn. The early miles on singletrack will be dark, so a headlamp is highly recommended. Typical race day conditions in early April feature comfortable highs around 71°F and lows around 48°F, with an approximate 11% chance of precipitation, though parts of the course can be exposed, leading to warmer felt temperatures.

Throughout the course, runners will find ample support at nine to ten well-stocked aid stations, providing GU Energy Gels, Skratch Hydration, SaltStick Electrolytes, water, soda, and various sweet and salty foods. As a cup-less event, remember to bring your reusable cup or bottle. The race is celebrated for its strong sense of community, with enthusiastic volunteers and motivational signs cheering participants to the finish line, where 50-mile finishers are awarded a special jacket and all distances receive a classic medallion. Many runners recommend this well-organized event as an excellent choice for a first ultra, balancing challenging terrain with manageable sections.