Ultra Running Hub Copper Harbor, MI, United States · Saturday, May 29, 2027
Back 9 12 Hour Endurance Run
We hold no course length for this race — a timed or backyard event is measured by the clock, not the kilometre — so there is no Grit score to give you.
What the course asks
DUV results for the 2026 edition (12h) — ranked runners 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 201 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2026 | 12h | 9 | Kurt Johnson · 94.758 km | Adelyn Ollila · 53.301 km |
| 2025 | 12h | 5 | Reid Berry · 53.301 km | Mariana Grohowski · 88.835 km |
| 2024 | 12h | 3 | Jose Rios · 65.146 km | Mariana Grohowski · 76.991 km |
| 2023 | 12h | 11 | Austin Gongos · 78.857 km | Lucy Campbell · 61.959 km |
| 2022 | 12h | 4 | Cade Meyer · 100.406 km | Lucy Campbell · 100.406 km |
| 2021 | 12h | 6 | Dusty Olson · 75.317 km | Kate McCloud · 92.698 km |
The field grew 80% between 2025 (5) and 2026 (9). 11% of the 2026 field were women.
DUV results for the 2026 edition (12h) — ranked runners 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 this trail race.
- Trail Running Shoes Cushioning on trail that is still there in the last quarter.
- Race Nutrition Self-supported fuelling between aid stations.
- Hydration Vests Flask capacity without the bounce.
- Headlamps A 12 h limit puts you out there after dark.
- GPS Watches Battery life first — an ultra outlasts most full-GPS modes.
Similar races
Other trail ultras of the same format.