Folsom 100

Come join us for the fourth annual FOLSOM 100-mile ultramarathon circumnavigating Folsom Lake! The Folsom 100 will start from Granite Bay state recreation area at Granite Bay Main Beach 7:00 pm on August 1st, 2025. Runners will have 34 hours to complete the 100-mile loop around Folsom Lake. You will be starting from Granite Bay and traveling through, Loomis, Auburn, Cool, Salmon Falls, El Dorado Hills, Folsom Point and back to Granite Bay! We have combined large sections of our other races (Meat Grinder, Snowberry, Red Dragon, and Dead Truck) into this one EPIC route! The views around Folsom Lake and river canyons are stunning as you work your way through this incredible course. The 54-mile race will end at the Skunk Hallow Parking lot in Pilot Hill. Parking is very limited here and drop off/pick up is advised. There will be no shuttle. The 100-mile 2-person relay switch out will also take place at Skunk Hallow Parking lot in Pilot Hill. Don't miss out on the 4th year of the Folsom 100! Sign up fast and earn your buckle! Hurry spots are limited!