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About RaceIndexOur methodologyData coverageCyclingTriathlon
  • Ultramarathon
  • 164.2 km
  • Carson City
  • Event dates –
  • Past event

Tahoe Rim Trail Endurance Runs Ultramarathon

This race edition

Race date
Date not confirmed for this distance
Race timezone
Timezone not confirmed
Edition status
Status not confirmed

Entry options

2026 edition

Entry options are not yet confirmed for this edition. Check the organiser before making plans.

Modelled energy-cost change 8.4% versus flat · net elevation -0 m

View verified GPS mapOfficial event website ↗
Data current as of

Decision summary

Tahoe Rim Trail Endurance Runs Ultramarathon at a glance

Route ascent
5,117 m

Lower than 22% of comparable mapped races

Cut-off average pace
13:10/km

36:00:00 total limit divided by distance. Check gun/chip timing and intermediate limits; allow time for stops.

Typical conditions
42/100

Historical race-date favourability, not a forecast

Evidence depth
43 verified facts

Stored GPS route

Quick answers

What runners ask first

Tahoe Rim Trail Endurance Runs Ultramarathon route map

raceindex.org has a GPS course file for Tahoe Rim Trail Endurance Runs Ultramarathon, so runners can inspect the route line on the map. Elevation charts and ascent figures appear only when that file includes usable elevation data.

How hilly is the Tahoe Rim Trail Endurance Runs Ultramarathon?

The Tahoe Rim Trail Endurance Runs Ultramarathon route has 5,117 m of ascent, 5,117 m of descent and an estimated 8.4% grade-adjusted pace penalty versus a flat route.

Where does the Tahoe Rim Trail Endurance Runs Ultramarathon route go?

The Tahoe Rim Trail Endurance Runs Ultramarathon route starts at Western Nevada College, Carson City, Nevada (4,888 ft); 100M starts 5:00 AM Sat, 100K & 50K 6:00 AM Sat, 23K 7:00 AM Sat and finishes at Western Nevada College, Carson City, Nevada. Underfoot, expect trail. It passes Waterfall Aid Station, Snow Valley Peak, Spooner Summit, Hobart and Tunnel Creek. All entrants must complete 8 hours of trail maintenance (volunteer/work credit) before the event.

What should runners know on race day for the Tahoe Rim Trail Endurance Runs Ultramarathon?

No drop-bag service for the 50K or 23K; drop bags available for longer events at staffed aid stations. 9. Pacers allowed for the 100 Mile from Diamond Peak aid (mile 39.5) and again at the second Diamond Peak visit (mile 72); for the 100K from Diamond Peak (mile 28.5). Pacers must check in and may not carry supplies for runners.

Race character

Scenery

  • Mountain
  • Forest
  • Lakeside
  • Countryside

Atmosphere

  • Wilderness
  • Destination

Terrain

  • Trail
  • Road
  • Mixed
Elevation character
Mountainous
Technicality
Moderate

Entry, logistics and records

Records and field

Field size
All four distances draw a limited backcountry field; in 2026 the 100K, 50K and 23K sold out with only the 100 Mile holding remaining spots.

Entry requirements

Entry status
Past event: The listed edition date has passed.
Cut-off
100 Mile: 36 hours (5:00 AM Sat start to 5:00 PM Sun); 100K & 50K: 20 hours (to 2:00 AM Sun); 23K: to 2:00 AM Sun.
Sold out
No
Qualification status
Western States 100 qualifier: 100 Mile finishers under 36h; 100K finishers under 20h. To enter the 100 Mile a runner must have run 50 miles under 15h, 100K under 22h, or finished any 100 Mile trail race.
Prior experience
Qualifier required for 100-mile: sub-15h 50-miler, sub-18h TRTER 56-miler, sub-22h 100K, or completion of any official 100-mile trail race
ITRA points
5 points

Race day logistics

Aid stations
9
Pacers
Pacers allowed for the 100 Mile from Diamond Peak aid (mile 39.5) and again at the second Diamond Peak visit (mile 72); for the 100K from Diamond Peak (mile 28.5). Pacers must check in and may not carry supplies for runners.
Bag drop
No drop-bag service for the 50K or 23K; drop bags available for longer events at staffed aid stations.

Access and course status

Start
Western Nevada College, Carson City, Nevada (4,888 ft); 100M starts 5:00 AM Sat, 100K & 50K 6:00 AM Sat, 23K 7:00 AM Sat.
Finish
Western Nevada College, Carson City, Nevada

Course facts

Course type
Out And Back
Surface
Trail
Landmarks
Waterfall Aid Station, Snow Valley Peak, Spooner Summit, Hobart, Tunnel Creek, Bull Wheel, Diamond Peak, Marlette Peak, Ash Canyon
Notable features
  • All entrants must complete 8 hours of trail maintenance (volunteer/work credit) before the event
  • ITRA-pointed (100M 5pts, 100K 4pts, 50K 3pts)
  • Single-track and dirt-road alpine and sub-alpine forest with panoramic views of Lake Tahoe and Washoe Valley
  • course marked with fluorescent orange reflective flagging. Highest point just below 9,214 ft Snow Valley Peak

How hilly is the Tahoe Rim Trail Endurance Runs Ultramarathon?

26%19%17%15%23%
  • Steep descent 26%
  • Descent 19%
  • Flat 17%
  • Climb 15%
  • Steep climb 23%
Total ascent
5,117 m
Net elevation
−0 m
GAP factor
8.4%
Longest climb
8,770 m at 11.1%
Gradient mix and ascent are derived from the course geometry under our published normalisation, not taken from organiser marketing.

What are typical race-day conditions?

  • 25°CTypical temperature
  • 18 kphTypical wind
  • 0 mmTypical rainfall
  • 42Favourability /100
Typical conditions for the race date and locality, warmer than the endurance-optimal window. These are climatological norms, not a forecast, and are shared across every distance at this event.

More race details

Is the Tahoe Rim Trail Endurance Runs Ultramarathon flat?

Its normalised GAP factor is 8.4% slower than a flat course, with about 5117 m of total ascent.

How we calculated this

Published facts and derived model outputs on this page are tied to stored sources or a published, version-locked methodology. We show the provenance so runners, coaches and organisers can check it. Data on this page is current as of .

Derived numbers use scoring-methodology-v1.0.

Sources used on this page (3)

Read the full methodology →