Ultra Running Hub Sioux Falls, SD, United States · Saturday, May 1, 2027
Tuthell 50K
Calculated from 50 km alone — the organiser has not published an elevation profile. Read 2.5 as a floor, not a verdict.
What the course asks
DUV results for the 2026 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, May
Regional 2001-2020 average for May — NASA POWER, grid elevation 443 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2026 | 50km | 20 | Jefferey Pratt · 05:10:57 | Emily Wanless · 06:35:50 |
| 2025 | 50km | 17 | Jefferey Pratt · 05:14:09 | Jessi Rakness · 07:18:43 |
The field grew 18% between 2025 (17) and 2026 (20). 35% of the 2026 field were women.
DUV results for the 2026 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
With trail terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 50 km of trail.
- Trail Running Shoes 50 km of trail — cushioning that is still there in the last quarter.
- Race Nutrition 50 km of self-supported fuelling between aid stations.
- Hydration Vests Flask capacity for 50 km, without the bounce.
- Headlamps A 12 h limit puts you out there after dark.
- GPS Watches Battery life first — a 50 km day outlasts most full-GPS modes.
Overview
The Tuthell 50K, first run in 2025, is a trail race in Sioux Falls, SD. Runners complete 100 loops of a 0.3-mile course up and down Tut Hill, gaining and losing 90 feet of elevation on each loop.
With 20 finishers at its latest edition in 2026, this race has a smaller field than 32% of 50k races. The 12-hour time limit means a cutoff pace of 14.4 minutes per kilometer, which is more generous than 24% of 50k races.
Similar races
Other 50K trail ultras, closest in distance first.