An after-dark trail 10K through disco-lit Sierra forest
Other trail races within 140 miles
An after-dark 10K that kicks off the festival weekend with glowsticks and good vibes. Starting at twilight from the Village Plaza, runners climb through Jeffrey pine forest on the Uptown Trail before a lollipop loop at the top and a cruise back down the Downtown Trail to a finish-line party. Disco lights strung in the trees guide the way, and a fluorescent-themed aid station keeps the energy up. Custom medals, pizza, and Best Day Brewing beer await at the finish.
Suitable for first-timers
Mammoth Lakes, CA, United StatesSeptember 25, 2026
Mammoth Trail Fest Tenkay is a loop trail race in Mammoth Lakes, CA, United States, held on September 25, 2026. The course covers 6.2 miles, climbs 790 ft, and has a 2h15m cutoff.
| Location | Mile | Elevation | Cutoff | Crew |
|---|---|---|---|---|
Start Start | 0.0 | 8,071 ft | — | |
Garage Aid Station | 2.4 | 8,629 ft | — | |
Garage Aid Station | 3.6 | 8,629 ft | 1h45m8:30 PM | |
Finish Finish | 6.2 | 8,071 ft | 2h15m9:00 PM |
Aid station details for this race are still being filled in. Cutoffs and access rules come from the race’s own published information and can change — check the official race details before planning around them.
Sign in for race-day weather at every station, points of interest, segment-by-segment analysis, pacing, and to save this race to your calendar.
Evening temperatures in Mammoth can drop sharply after sunset — carry a layer
No required gear specified
No recommended gear specified
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