Ultra Running Hub Dubuque, IA, United States · Saturday, November 7, 2026
Miner 49er
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 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, November
Regional 2001-2020 average for November — NASA POWER, grid elevation 275 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2025 | 50km | 30 | Spencer van Dorn · 04:27:50 | Kristin Korevec · 05:30:56 |
| 2024 | 50km | 18 | Matthias Kemmeren · 04:29:13 | Courtney Osbourne · 06:37:23 |
| 2023 | 50km | 18 | R.J. Montes · 04:56:29 | Jessa Victor · 04:23:10 |
| 2022 | 50km | 19 | Ryan Richert · 04:26:41 | Emma King · 06:42:25 |
| 2021 | 50km | 22 | James Fladhammer · 04:13:38 | Olivia Dietzel · 04:41:52 |
| 2020 | 50km | 37 | Tom Rauen · 04:28:52 | Jessica Riojas · 05:24:21 |
| 2019 | 50km | 23 | Kirk Cherep · 04:56:36 | Elizabeth Riffel-Altman · 05:00:39 |
| 2018 | 50km | 21 | Ross Salinas · 04:37:08 | Suzanne Halekas · 05:17:00 |
The field grew 67% between 2024 (18) and 2025 (30). 17% 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
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.
- GPS Watches Battery life first — a 50 km day outlasts most full-GPS modes.
Overview
The Miner 49er 50k, organised by Miner 49'er 50k & 25k Endurance Runs, takes place in Dubuque, IA in November. This trail race covers 50 kilometers and has been held 8 times, starting in 2018.
With a 9-hour time limit, this 50k has a cutoff tighter than 60% of its 1019 peer races, requiring runners to maintain a pace faster than 10.8 minutes per kilometer. The single-track, double-track, and prairie trails offer views of the Julien Dubuque Monument, Horseshoe Bluff, and the Mississippi River.
Similar races
Other 50K trail ultras, closest in distance first.