Mammoth Lakes, California · Trail
The Mammoth 2026
2025·2026Live now
Started Friday, October 2, 2026 at 9:00 AM GMT-7
The course was finalized on August 16, with June Lake Junction at mile 184 replacing Obsidian Dome and Glass Creek at mile 197.5 replacing Inyo Craters, and every aid station cut-off rewritten around the 109-hour limit. The race's own course page still carries the line that the 2026 route is pending Forest Service approval.
Live tracking and results:Tracking (trackleaders) ↗Tracking (aravaipa-live) ↗Stream on Mountain Outpost ↗
Weather today
Weather in Mammoth Lakes, California today: high 70°F (21°C), low 48°F (9°C), 2% chance of precipitation.
Forecast via Open-Meteo, refreshed hourly.
Distances
- Distance
- 218 mi (351 km)
- Vert gain
- 31,091 ft (9,500 m)
- Cutoff
- 109 hr
WSER 2027 qualifier (sub-100:00)
| Distance | Vert gain | Cutoff | Notes |
|---|---|---|---|
| 218 mi (351 km) | 31,091 ft (9,500 m) | 109 hr | WSER 2027 qualifier (sub-100:00) |
Every year
- 2026October 2, 2026 · live
- 2025September 26, 2025 · completedJimmy Elam 45:16:02 · Rachel Entrekin 46:50:45