Mammoth TUFF

About this race

Event Overview Hosts: Amanda and David Sheek invite you to Mammoth Lakes, the gateway to mountain adventure. Date: The fifth annual Mammoth TUFF will take place September 19, 2026. Distance Options: Offers three distances: short, medium, and long courses. Course Highlights: Long course travels through the Volcanic Tableland formed by an ancient eruption. Event Details Festival: A gravel event and adventure festival to challenge the toughest of riders. Location: Hosted by the Village at Mammoth Lakes. UCI Series: Part of the UCI Gravel World Series for 2026. Guide: Click here to access the '25 guide Race Policies Refund Policy: No refunds except in case of event cancellation due to adverse conditions. Transfers: Participants can transfer their registration for a $10 surcharge. Insurance: BikeReg offers Allianz Registration Protection for participants. Recommendation: We recommend purchasing insurance for your protection. Course Information Route Release: Final routes will be released on the week of the event (~Sept 14). Self-Sufficiency: Sufficient supplies and support at aid stations will be provided. Course Marking: Courses will be marked, but navigation is encouraged. Previous Success: Expect similar routes to the successful ‘25 routes. UCI Gravel World Series Details Categories: UCI Gravel World Championship qualifier categories will be noted. Age Groups: Defined by the rider’s age on December 31, 2026. License: Elite category riders must hold a UCI license. Qualification Rights: Top 3 finishers of each category qualify for UCI Gravel World Championships. Adaptive TUFF P…