Registration for 2027 opens December 6, 2026. Recent editions have required 100 mile entrants to show a qualifying ultra result and to complete trail work volunteer service before the race.
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| Event | Distance | When | Entry fee | Cap |
|---|---|---|---|---|
| 100K | 100K | Jul 17, 2027 | See registration | – |
| 100 Mile | 100 Mile | Jul 17, 2027 | See registration | – |
| 23K | Other | Jul 17, 2027 | See registration | – |
| 50K | 50K | Jul 17, 2027 | See registration | – |
Fees and dates are from the race's official website on the date shown below; confirm them there before you register.
Sunrise on race morning is at about 5:45 AM.
Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.
Western Nevada College, 2201 W College Pkwy (start and finish), Carson City, NV
The pin marks the address the race lists, which is usually the start. The organizers have not shared a course map with us yet.
What runners should know about Tahoe Rim Trail Endurance Runs, in brief, from the official race website.
Schedule and packet pickup
Packet pickup is at Western Nevada College on the Friday before the race, and organizers strongly advise going then rather than on race morning. Drop bags for the Hobart aid station must be handed in Friday afternoon.
Course
The 100 mile route covers about 102 miles with roughly 18,000 feet of climbing, the 100K about 62.5 miles and 10,750 feet, and the 50K about 30 miles and 6,000 feet. The 23K climbs from the college to the Waterfall aid station and returns. Carson City sits at 4,888 feet, the low point.
Parking and travel
Race day parking is at Western Nevada College. Crews can meet runners only at the Diamond Peak aid station, which is also the one place to pick up pacers. Expect cold nights on the ridge and valley heat in the 90s near the finish; trekking poles are allowed.
Shirt and medal
Finishers of the 23K, 50K and 100K get a finisher's award, and 100 mile finishers receive a belt buckle. Food truck meals and drinks in the finish area lounge come with entry.
Rules and FAQ
The 100 mile has a 36 hour limit, ending 5 p.m. Sunday. The 100K, 50K and 23K share a finish cutoff of 2 a.m. Sunday, though 100K runners may finish unofficially until 6 a.m. A 100K under 20 hours or a 100 mile under 36 hours qualifies for Western States.
The cause
Net proceeds go to groups such as the Tahoe Rim Trail Association's trail maintenance program, the Lake Tahoe Nevada State Park backcountry bike patrol and Carson City youth programs. The race reports more than $300,000 donated over the years.
Facts on this page come from the race's official website (trter.com, trter.com/details, trter.com/details/100-mile-event, trter.com/details/100k-event), checked Sep 27, 2026. Confirm dates and fees there before you travel.
Organize this race? Add details or a correction
A nonprofit mountain ultra weekend on the east side of Lake Tahoe, with 100 mile, 100K, 50K and 23K races that start and finish at Western Nevada College in Carson City. The longer courses climb to near Snow Valley Peak and follow the Tahoe Rim Trail on single track and dirt roads at about 8,000 feet on average.