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Built on bad decisions in Boulder, CO.

Tahoe Rim Trail Endurance Runs 100K

Basic Listing
  1. 2026 Edition

63-mile Western States qualifier through alpine Nevada backcountry above Lake Tahoe

Directions
DeadlineJune 28, 2026
This event took place on July 18, 2026

Nearby races

Other trail races within 82 miles

Tahoe Rim Trail Endurance Runs 100 Mile
Qualifier Req
Service Req

Tahoe Rim Trail Endurance Runs 100 Mile

100 Mile
Carson City, NV, US
Jul 18, 2026
98.46 miles
15,820 ft gain
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All trail races in Nevada→
July 18, 2026
Saturday 6:00am PDT start
Carson City, NV
United States
62.2 miles
Loop Course
9,770 ft
Elevation Gain
Open Registration
No lottery
No Service Requirement
Does not require trail or volunteer work
No Qualifier
No qualifier race required
Very Challenging
Experienced ultrarunners
Links
WebsiteInstagramFacebook
2001
Established

What Makes It Great

The 100K covers approximately 63 miles and 10,750 feet of climbing on the same high-altitude singletrack as the 100 Mile, starting and finishing at Western Nevada College in Carson City. Runners visit Snow Valley Peak (9,214 ft), Hobart, Tunnel Creek, Diamond Peak, and return via the Capital to Tahoe Trail and Ash to Kings singletrack. Sub-20-hour finishers earn a Western States 100 qualifier; all finishers within 24 hours receive a finisher award.

Difficulty

Advanced
7/10

Experienced ultrarunners

High Altitude
Steep Climbing
Technical Descent
Exposed Ridgeline
Night Running
Extreme Heat
Variable Weather

Race Highlights

Western States qualifier sub-20 hrs
Finish the 100K under 20 hours (2:00 AM cutoff) to earn a Western States 100 lottery qualifier
Snow Valley Peak at 9,214 ft
Climbs to just below Snow Valley Peak summit for sweeping views of Lake Tahoe and the Great Basin desert
10,750 ft of climbing in 63 miles
High-altitude alpine singletrack averaging 8,000 ft elevation — every mile earned
Night running in the backcountry
Back-half miles run through the night with world-class aid station hospitality at Tunnel Creek and Diamond Peak

Finish Awards

100K Finisher's Award
Finisher's award presented at the finish line to all runners completing the course within 24 hours

Tahoe Rim Trail Endurance Runs 100K

Carson City, NV, United StatesJuly 18, 2026

July 18, 2026
Course map for Tahoe Rim Trail Endurance Runs 100K
DistDistance62.2 mi
GainElevation Gain9,770 ft
High AltitudeSteep ClimbingTechnical DescentExposed RidgelineNight RunningExtreme HeatVariable Weather

Entry Timeline

Registration DeadlineJune 28, 2026
Race DayJuly 18, 2026

Lottery

This event uses open registration - no lottery entry required.

Qualifier

This event does not require a qualifier for entry.

Service Requirement

This race does not have a service requirement for entry.

Terrain

Surface Types
Singletrack85%
Forest Road10%
Pavement5%
62.2 mi
Distance
Loop
Route
8,028 ft
Average Elevation
9,770 ft
Total Ascent
9,770 ft
Total Descent
8,999 ft
High Point
5,745 ft
Low Point
Course map
Launch Course Explorer

Aid Stations

LocationMileElevation
Start – Western Nevada College
Start
0.04,879 ft
Kick Ash Water Station
Aid Station
6.06,480 ft
Snow Valley Peak Aid Station
Aid Station
11.08,940 ft
Hobart Aid Station
Aid Station
14.58,330 ft
Tunnel Creek Aid Station
Aid Station
19.57,959 ft
Bull Wheel Water Station
Aid Station
22.58,435 ft
Diamond Peak (Sharon Fong Memorial)
Aid Station
31.06,857 ft
Bull Wheel Water Station
Aid Station
33.08,435 ft
Tunnel Creek Aid Station
Aid Station
36.07,953 ft
Hobart Aid Station
Aid Station
41.08,655 ft
Snow Valley Peak Aid Station
Aid Station
44.58,960 ft
Hobart Aid Station
Aid Station
48.08,320 ft
Waterfall Aid Station
Aid Station
58.06,736 ft
Finish – Western Nevada College
Finish
65.04,879 ft

Sign in to see cutoffs, crew access, drop bags, and services for every aid station.

Dogs Allowed

No dogs allowed at the Finish Line Village or any aid stations. Dogs must be secured away from race venue areas.

No on-site camping available

Crew Access Points

Pacer Rules

  • Pacers allowed from Diamond Peak Aid Station (mile 28.5), the only drive-to aid station on the 100K course
  • One pacer at a time. No muling. Pacers must check in at Diamond Peak and receive a bib number.

Crew Rules

  • Crew access only at Diamond Peak Aid Station (mile 28.5)
  • No crewing outside the designated aid station area. Lower parking lot only—no roadway blocking.
Weather
High Altitude

Course averages 8,000 ft; Snow Valley Peak reaches 9,214 ft

Heat Training Recommended

Carson City finish and lower exposed sections reach mid-90F in July

Cold/Hypothermia Risk

Nighttime ridgeline temperatures drop to low 30s—carry warm layers for night sections

Lightning/Thunderstorm Risk

Exposed ridgelines above treeline susceptible to afternoon and evening thunderstorms

Gear Rules

Trekking poles allowed

Required Gear

No required gear specified

Recommended Gear

No recommended gear specified

Videos from other Tahoe Rim Trail Endurance Runs events

TRTER 56 Miler 2024 by Nico Aguilera
TRTER 56 Miler 2024 by Nico Aguilera
Tahoe Rim Trail Endurance Runs 100 Mile
Nico Aguilera•2024
TRTER 2018 by Stephen Blea
TRTER 2018 by Stephen Blea
Tahoe Rim Trail Endurance Runs 100 Mile
Stephen Blea•2018
TRTER Finisher's Buckle — The Making Of
TRTER Finisher's Buckle — The Making Of
Tahoe Rim Trail Endurance Runs 100 Mile
TRTER

Race reports from other Tahoe Rim Trail Endurance Runs events

Tahoe Rim Trail 100 Race Report 2024Tahoe Rim Trail Endurance Runs 100 Mile
By Joy Ebertz • 2024
Tahoe Rim Trail 100 — Race ReportTahoe Rim Trail Endurance Runs 100 Mile
By The Liles Trials • 2024

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Register•July 18, 2026