Middleville, MI, United States · Friday, May 29, 2026

Fixed Distance 100K

Yankee Springs 100 km Trail Run

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.

42.7131° N, 85.4620° 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 Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it.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 ~8 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, May

Daytime high 20°C
Night low 8°C
Rainfall Showers likely
Daylight 15 h 01 m of light

Regional 2001-2020 average for May — NASA POWER, grid elevation 247 m. Not a forecast.

Results history

Year Race Finishers Men's winner Women's winner
2026 100km 8 Steve Bradley · 10:48:48 Darcy Irvine · 14:44:45
2025 100km 10 Matt Kordie · 11:56:59 Amy Scharpf · 14:15:33
2024 100km 8 Travis Reid · 09:51:53 Amy Bechtold · 15:12:37
2023 100km 12 Michael Uhlig · 10:23:35 Michelle Magagna · 11:02:34
2022 100km 14 Charles Hornburg · 09:33:16 Emily Vantol · 13:35:55
2021 100km 23 Kevin Rook · 10:52:35 Teri Garrelts · 14:19:20

The field shrank 20% between 2025 (10) and 2026 (8). 13% 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.
All gear guides →

Similar races

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