Denali 135 Great Alaska Endurance 100 km Race

Race completed

100 km Distance

not publishedn/a Climbing

5.0 est Grit · Challenging

Calculated from 100 km alone — the organiser has not published an elevation profile. Read 5.0 as a floor, not a verdict.

63.0084° N, 145.7510° W © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Time limit 18 hours 10:48 min/km average. Generous. Walkable throughout for most of the field. Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. About average for a 100K. Measured against 214 races of the same distance. Cut-off calculator →

Field size ~17 Tiny. You will run alone for most of it.

DUV results for the 2026 edition (100km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, June

Daytime high 12°C

Night low 4°C

Rainfall Showers likely

Daylight 20 h 20 m of light

Regional 2001-2020 average for June — NASA POWER, grid elevation 1071 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2026	100km	17	Nicholas Whitney · 10:01:26	Jessica Schmuke · 10:04:27
2025	100km	11	Jesse Alloy · 11:54:00	Carrie Koso · 11:08:00
2024	100km	27	Austin Canning · 11:10:00	Carolyn Smith · 11:47:00
2023	100km	14	Matthew Bishop · 08:43:15	Kamie Miller · 11:11:24
2022	100km	15	Diego Chavez · 10:47:15	Mackenzie Murtiff · 12:38:40
2021	100km	13	Marshall Genn · 09:26:00	Maria Davydenko · 10:43:00

The field grew 55% between 2025 (11) and 2026 (17). 35% of the 2026 field were women.

DUV results for the 2026 edition (100km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

The Aid Station

Course-specific beta from the community

👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

🥤 nutrition

For 100km+ efforts, prioritize real food at aid stations to prevent palate fatigue.

By UltraHub Expert

Gear for this race

Chosen for 100 km of trail.

Trail Running Shoes 100 km of trail — cushioning that is still there in the last quarter.
Race Nutrition Past 100 km the palate quits before the legs do — carry more than one flavour.
Hydration Vests Flask capacity for 100 km, without the bounce.
Headlamps A 18 h limit puts you out there after dark.
Accessories Chafe and blisters end more 100 km races than fitness does.

Salomon

Ultra Glide 4

$159.95 ★★★★★ 4.6

La Sportiva

Prodigio Pro

RunRepeat found the La Sportiva Prodigio Pro to have a secure, locked-in fit due to its premium upper, and also praised the shoe's energetic ride, particularly…

$225 ★★★★★ 4.6

Skratch Labs