Syracuse, UT, United States · Saturday, October 17, 2026

Fixed Distance 50K

Antelope Island Fall Classic 50K

17 days to go

50 km Distance

1,200 m Climbing

4.3 Grit · Challenging

41.0894° N, 112.0647° W © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 24 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.

Time limit 10 hours 12:00 min/km average. Generous. Walkable throughout for most of the field. About average for a 50K. Measured against 1034 races of the same distance. Cut-off calculator →

Field size ~102 Mid-sized. Company early, well spread out by halfway.

DUV results for the 2025 edition (50km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, October

Daytime high 15°C

Night low 3°C

Rainfall Mostly dry

Daylight 11 h 06 m of light

Regional 2001-2020 average for October — NASA POWER, grid elevation 1744 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2025	50km	102	Caleb Olson · 03:41:42	Corinna Pena-Johnson · 04:31:54
2024	50km	178	Mike McMonagle · 04:02:39	Lauren Kersjes · 04:34:17
2023	50km	168	Hawk Call · 03:39:10	Lotti Brinks · 03:55:10
2022	50km	128	Justin Grunewald · 03:26:49	Jessi Morton-Langehaug · 04:38:27
2021	50km	162	Jacob Grant · 03:29:08	Danielle Snyder · 04:35:52
2019	50km	212	Caleb Olson · 03:41:03	Leah Yingling · 04:19:37
2018	50km	208	Mike McMonagle · 03:50:06	Caroline Wallace · 04:27:03
2017	50km	161	Golden Harper · 03:58:45	Kathleen Hobbs · 04:44:26
2016	50km	184	Eric Ellis · 04:07:17	Natalie Como · 04:20:07
2015	50km	199	Lars Kjerengtroen · 03:37:00	Katie Schide · 04:33:15

The field shrank 43% between 2024 (178) and 2025 (102). 33% of the 2025 field were women.

DUV results for the 2025 edition (50km) — 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

⛰️ terrain

This is a rolling course. Expect fast, runnable sections where rhythm is key.

By UltraHub Expert

👟 gear

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

By UltraHub Expert

Gear for this race

Chosen for 50 km of trail with 1,200 m of ascent.

Trail Running Shoes 24 m of climb per kilometre — grip and rock protection before cushioning.
Race Nutrition 50 km of self-supported fuelling between aid stations.
Hydration Vests Pole attachment and chest-strap stability on steep ground.
Trekking Poles 1,200 m of ascent to walk up.
GPS Watches Battery life first — a 50 km day outlasts most full-GPS modes.

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

Adidas

Terrex Speed Ultra

RunRepeat found the Adidas Terrex Speed Ultra to have a grippy outsole and great lockdown, while iRunFar noted that the shoe works on a variety of trail conditi…

★★★★★ 4.5

Maurten