102-mile Western States qualifier across the Tahoe Rim Trail's rugged Nevada backcountry
Other trail races within 72 miles
The flagship 100-mile event traverses approximately 102 miles of high alpine singletrack on the Tahoe Rim Trail and surrounding Nevada backcountry, starting and finishing at Western Nevada College in Carson City. Runners climb 18,140 feet of elevation across an extended figure-8 loop through aid stations at Snow Valley Peak (9,214 ft), Spooner Lake, Hobart, Tunnel Creek, and Diamond Peak, with the course averaging 8,300 feet above sea level. The iconic Tunnel Creek Aid Station is visited four times and Diamond Peak twice—both serve full hot meals after dark. A Western States 100 qualifier for all finishers within the 36-hour cutoff.
Experienced ultrarunners
Carson City, NV, United StatesJuly 17, 2027
Tahoe Rim Trail Endurance Runs 100 Mile is a loop trail race in Carson City, NV, United States, held on July 17, 2027. The course covers 98.5 miles and climbs 15,820 ft.
Must complete a 50 Mile race or longer within the qualification window
Must have completed one of:
50 miles in under 15 hours
TRTER 56-Miler in under 18 hours
100K in under 22 hours
Any official 100-mile trail race.
Qualifying period: July 1, 2023 to time of registration. Proof must be verifiable on UltraSignup or Ultrarunning Magazine results. Virtual races not accepted.
8 hours of trail construction or maintenance work required between July 1, 2025 and July 1, 2026. Forms submitted to George Ruiz ([email protected]) no later than July 1, 2026. Runners who fail to submit proof are automatically downgraded to the 100K without refund.
| Location | Mile | Elevation | Cutoff | Crew | Pacers | Drop bags |
|---|---|---|---|---|---|---|
Start – Western Nevada College Start | 0.0 | 4,879 ft | — | Crew | Drop Bags | |
Kick Ash Water Station Aid Station | 3.5 | 6,480 ft | — | |||
Snow Valley Peak Aid Station Aid Station | 10.0 | 8,963 ft | — | |||
Spooner Summit Aid Station Aid Station | 16.0 | 7,172 ft | — | Crew | ||
Snow Valley Peak Aid Station Aid Station | 22.0 | 8,963 ft | — | |||
Hobart Aid Station Aid Station | 25.0 | 8,320 ft | — | Drop Bags | ||
Tunnel Creek Aid Station Aid Station | 30.0 | 8,543 ft | — | CrewHike in | Drop Bags | |
Bull Wheel Water Station Aid Station | 33.0 | 8,543 ft | — | |||
Diamond Peak (Sharon Fong Memorial) Aid Station | 41.5 | 6,857 ft | 17h10:00 PM | Crew | Pacers | Drop Bags |
Bull Wheel Water Station Aid Station | 43.5 | 8,435 ft | — | |||
Tunnel Creek Aid Station Aid Station | 46.5 | 7,953 ft | — | CrewHike in | Drop Bags | |
Hobart Aid Station Aid Station | 51.5 | 8,320 ft | — | Drop Bags | ||
Snow Valley Peak Aid Station Aid Station | 54.5 | 8,963 ft | — | |||
Hobart Aid Station Aid Station | 57.5 | 8,320 ft | — | Drop Bags | ||
Tunnel Creek Aid Station Aid Station | 62.5 | 8,543 ft | — | CrewHike in | Drop Bags | |
Bull Wheel Water Station Aid Station | 65.5 | 8,543 ft | — | |||
Diamond Peak (Sharon Fong Memorial) Aid Station | 74.0 | 6,857 ft | 27h8:00 AM +1 | Crew | Pacers | Drop Bags |
Bull Wheel Water Station Aid Station | 76.0 | 8,543 ft | — | |||
Tunnel Creek Aid Station Aid Station | 79.0 | 8,543 ft | 29h10:00 AM +1 | CrewHike in | Drop Bags | |
Hobart Aid Station Aid Station | 84.0 | 8,320 ft | — | Drop Bags | ||
Waterfall Aid Station Aid Station | 94.0 | 6,736 ft | — | |||
Finish – Western Nevada College Finish | 101.0 | 4,879 ft | 36h5:00 PM +1 | Crew | Drop Bags |
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.
No dogs allowed at the Finish Line Village or any aid stations. Dogs must be secured away from race venue areas.
Course averages 8,300 ft elevation; Snow Valley Peak reaches 9,214 ft
Carson City finish and lower exposed sections reach mid-90F in July—dramatic temperature swing from ridgeline to valley
Nighttime ridgeline temperatures drop to the low 30s even in July—hypothermia is a leading cause of DNFs
Exposed Tahoe Rim Trail ridgelines above treeline are vulnerable to afternoon and evening thunderstorms in July
No required gear specified
No recommended gear specified
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