Mammoth Tuff
A high-altitude Eastern Sierra gravel race at Mammoth Lakes, California — ~161km (100mi) with ~2,286m of sustained climbing on loose volcanic pumice, the whole course at ~2,400m (8,000ft)+, plus a ~97km (60mi) option. Altitude is the defining challenge. Date/edition approximate (est. summer 2027).
A high-altitude Eastern Sierra gravel race at Mammoth Lakes, California — ~161km (100mi) with ~2,286m of sustained climbing on loose volcanic pumice, the whole course at ~2,400m (8,000ft)+, plus a ~97km (60mi) option. Altitude is the defining challenge. Date/edition approximate (est. summer 2027).
What makes it hard
- 2286m of total climbing
- Technical terrain: loose volcanic gravel and pumice, dusty forest and high-desert roads at altitude
How BEINA trains you for it
BEINA reads the exact demands of Mammoth Tuff — gravel, 161km, loose volcanic gravel and pumice, dusty forest and high-desert roads at altitude — and builds your plan around them. Race-day predictions and AI coaching remove the guesswork so you arrive ready.