Peosta, IA, United States · Saturday, October 3, 2026

Fixed Distance 50K

Swiss Valley 50 km Trail Race

3 days to go
50 km Distance
not publishedn/a Climbing
2.5 est Grit · Entry level

Calculated from 50 km alone — the organiser has not published an elevation profile. Read 2.5 as a floor, not a verdict.

42.4506° N, 90.8504° W © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Field size ~21 Small. Long stretches with nobody in sight.

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 4°C
Rainfall Mostly dry
Daylight 11 h 42 m of light

Regional 2001-2020 average for October — NASA POWER, grid elevation 275 m. Not a forecast.

Results history

Year Race Finishers Men's winner Women's winner
2025 50km 21 Nolan Welbes · 05:53:11 Cassandra Bishell · 07:12:06
2024 50km 12 Kyle Weber · 06:01:11 —
2023 50km 18 R.J. Montes · 05:16:34 Constance Gambrall · 06:26:18
2022 50km 17 Jacob Gallagher · 05:11:42 Constance Gambrall · 06:12:22
2021 50km 14 Ross Salinas · 04:56:23 Simona Leafe · 06:48:33

The field grew 75% between 2024 (12) and 2025 (21). 19% 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

👟 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.

  • 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.
  • GPS Watches Battery life first — a 50 km day outlasts most full-GPS modes.
All gear guides →

Overview

The Swiss Valley 50 km Trail Race, organized by the Swiss Valley Trail Run Community, offers a 50 km trail experience in Peosta, IA, United States. Held in October, this fixed-distance event has been run 5 times since its 2021 debut, with the latest edition in 2025 seeing 21 finishers.

Runners will find a smaller field than 33% of its 2662 peer 50k races, making for a less crowded experience. The course is described as featuring creek crossings, steep inclines, and rugged terrain, with a 5.2-mile loop format.

Similar races

Other 50K trail ultras, closest in distance first.