Rio Del Lago 100 Mile Endurance Run

NOV
7-8
2026
A 100 mile and 50K trail race around Folsom Lake with long elevation, stocked aid stations, drop bag and pacer rules.
7-8 Nov 2026
100 miles 50 kilometers

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Rio Del Lago 100 Mile Endurance Run

Rio Del Lago stages two endurance events on Saturday, November 7, 2026, from Beal's Point at Folsom Lake State Recreation Area in the Sierra foothills, about 40 minutes east of Sacramento. The 100 mile course lists approximately +13,874 ft and -13,874 ft of elevation change and follows a mix of paved bike paths, single-track trail, oak woodland and meadows with multiple river and lake viewpoints.

Distances

  • 100 mile
  • 50K

The 100 mile route begins with a short loop around Beal's Point, then follows the American River Parkway, Johnny Cash Trail, Nimbus Bluffs and numerous single-track segments including Middleridge, Prison Break, Pioneer Express and sections of the Western States Trail. Notable landmarks on course include Folsom Lake, Granite Beach, Twin Rocks, Rattlesnake Bar, Auburn Dam Overlook and No Hands Bridge. The 50K runs the same outbound route to Twin Rocks then returns to Beal's Point.

Aid stations are fully stocked with water, sports drink, assorted gels, soda, hot and cold foods, PB&J and energy bars; night stations offer hot broth and quesadillas at several locations. The event is cupless and runners must carry two water bottles or a hydration pack. Drop bags are issued for specific aid stations and must be reclaimed by noon Sunday or they will be donated. Pacers are allowed only at designated locations and must travel on foot. The 2026 edition serves as a qualifier for the 2027 Western States 100. Visit the organization's website for the most recent information.

100 mi
100 Mile Endurance Run
50 km
50k Endurance Run

Events nearby

A trail 5K and 10K at Granite Beach for runners with or without dogs, featuring shaded single-track trails, mid-course aid stations, finisher medals and dog bandanas.
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.
Mile Madness is a looped trail endurance event in Auburn, California, held September 18-21, 2026. Timed events run from 3 to 72 hours with a 0.75 mile loop and options including a 100 mile race plus on-site aid and amenities.
Trail runs at Granite Beach on Folsom Lake with new 10 mile and 5K courses, aid stations, age group awards, a finisher beer glass and a postrace meal.
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