Races
Mammoth 200
Mammoth Lakes. Pumice, sand flats, Sierra ridges. You summit Mammoth Mountain twice. The last time is after 210 miles.
200 mi+39,098 ft-39,075 ft100 hours6,365 ft to 10,994 fttech 8/1021 stationsloopsummit twice4 water onlyWSER qualifierOctober
Distance200 mi
Gain+39,098 ft
Loss-39,075 ft
Altitude6,365 ft to 10,994 ft
Technicality8/10
Air20°F to 85°F
- Start8,064 ft
- High10,949 ft
- Low6,398 ft
- Finish8,087 ft
- CP1 at mile 20, cutoff 10 hours
- CP2 at mile 40, cutoff 20 hours
- CP3 at mile 60, cutoff 30 hours
- CP4 at mile 80, cutoff 40 hours
- CP5 at mile 100, cutoff 50 hours
- CP6 at mile 120, cutoff 60 hours
- CP7 at mile 140, cutoff 70 hours
- CP8 at mile 160, cutoff 80 hours
- CP9 at mile 180, cutoff 90 hours
- Finish at mile 200, cutoff 100 hours
Terrain
Field, 2025 · 4-year samplescraped
Starters64
Finish rate100%
Median12:22
Sub-2464
Geometryderived
Steepest drop1,824 ft-12.2% over 2.8 mi
Night miles100 misunset near 18:00 local
Time over 8k ft55%
Longest climb1,693 ft73 mi at 0.4%
Weather at the cruxderived
At hour 9 of race, feels like 29 C (82 F).Sample of 7 race days, medium confidence.At hour 9 of race, apparent temperature P90 is 29 C / 84 F.
Course records
Men7:52:09Noah Reid
Women9:30:51Peyton Bilo
The cruxMammoth Mountain summits (11,053 ft)
Course DNA
The Course
Eastern Sierra loop around the Long Valley Caldera. Volcanic pumice. Sand flats. Sierra ridges. Sagebrush in the valley. The course is bookended with Mammoth Mountain, 11,053 feet. Sliding pumice underfoot. Low 6,424 feet. High 11,053. Trail 65 percent, jeep 28, paved 7.
The Work
Climbing at altitude on loose sand. Calves, Achilles, and hip flexors take the slip. Hypoxic vertical power. Train altitude volume. Sand running. Long pole-climbing blocks.
Kit
Volcanic-dust gaiters (Dirty Girl or equal). Fine pumice will fill a shoe and blister you. Cushioned trail shoes with a robust outsole. Windproof layers for the summit wind.
Race Day
Take the Long Valley Caldera flats easy. Pumice dirt drains the legs if you run it like road. Steady climbing on the Sierra slopes. The last summit is after 210 miles. Sliding pumice. Thin cold air. Crew around the Eastern Sierra. Cell is spotty. Hot food. Dry socks. Sleep on a clock.
Results
Mammoth 200 finish lines.
Winner: Jimmy Elam, 44:42:00.
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Sources (1)
- Field stats (2025): https://ultrasignup.com/results_event.aspx?did=120191