RunRace USA › California › THE MAMMOTH
THE MAMMOTH
Mammoth Lakes, California · Friday, October 2, 2026 · Ultra
Official race page & registration ↗THE MAMMOTH takes place on Friday, October 2, 2026 in Mammoth Lakes, California. The race is run over Ultra. For anyone travelling in, Fresno is about 76 miles away.
It is one of 321 races on the California calendar that October. Unusually for a race, it falls on a Friday.
- Date
- Friday, October 2, 2026
- Location
- Mammoth Lakes, California
- Distances
- Ultra
Listing from the 2026 race calendar, refreshed nightly. Details can change: confirm date and entry on the official race page before travelling. Spot an error? Tell us here.
Making a race weekend of it?
Stay near the start line in Mammoth Lakes: check in Oct 1, out Oct 3.
Common questions
When is THE MAMMOTH?
THE MAMMOTH is scheduled for Friday, October 2, 2026.
Where is THE MAMMOTH held?
THE MAMMOTH is held in Mammoth Lakes, California. It is about 76 miles from Fresno.
What distances does THE MAMMOTH offer?
The listed distances are Ultra.
How do I register for THE MAMMOTH?
Registration is handled on the official race page, linked at the top of this listing. Entry can close early if the race sells out.
More races nearby
- Oct 22025 Cross Country Trip FeesSanta Ana, CA
- Oct 2Back On The Ranch Trail RunLos Olivos, CA
- Oct 2Pink & Purple Zumba ClassCoronado, CA
- Oct 2SGRAIL Marin - Triathlon & Trail Half MarathonSan Rafael, CA
- Oct 2Tehachapi Summit Challenge - Weekend on the RocksTehachapi, CA
See every race on the California calendar, California Ultras, or use the Race Finder for maps and filters.