Ultra Running Hub Idaho Falls, ID, United States · Saturday, June 27, 2026
Fixed Distance 50 mi
To Bone and Back 40-Mile Ultra Marathon
Race completed
64 km Distance
not publishedn/a Climbing
3.2 est Grit · Challenging
Calculated from 64 km alone — the organiser has not published an elevation profile. Read 3.2 as a floor, not a verdict.
What the course asks
Field size ~12 Tiny. You will run alone for most of it.
DUV results for the 2026 edition (40mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, June
Daytime high 24°C
Night low 9°C
Rainfall Mostly dry
Daylight 15 h 24 m of light
Regional 2001-2020 average for June — NASA POWER, grid elevation 1673 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2026 | 40mi | 12 | Joseph West · 06:16:02 | Virginia Vasquez-Nielsen · 05:51:43 |
| 2025 | 40mi | 14 | Nate Jacobs · 04:55:19 | Joni Jones · 06:23:29 |
| 2024 | 40mi | 5 | Kolton Williams · 06:44:41 | Joni Jones · 06:33:53 |
| 2023 | 40mi | 7 | Treyton Holman · 06:56:09 | Joni Jones · 07:05:37 |
| 2022 | 40mi | 2 | James Powell · 07:31:14 | — |
| 2021 | 40mi | 5 | Jay Miller · 06:48:40 | Dana Kirkham · 09:53:37 |
| 2020 | 40mi | 11 | Thad Kendell · 05:19:03 | Audrey Ross · 06:24:24 |
| 2019 | 40mi | 6 | David Olsen · 06:57:52 | Karla Dyroff · 09:05:27 |
| 2018 | 40mi | 5 | Kyle Baldwin · 04:58:12 | Kathleen Gorby · 07:37:21 |
| 2017 | 40mi | 6 | Kyle Baldwin · 05:53:28 | Deanna Halford · 06:02:25 |
The field shrank 14% between 2025 (14) and 2026 (12). 50% of the 2026 field were women.
DUV results for the 2026 edition (40mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Course notes
- gear With road terrain, choose a shoe with moderate cushioning for optimal performance.
Gear for this race
Chosen for 64 km of road.
- Trail Running Shoes 64 km of road — cushioning that is still there in the last quarter.
- Race Nutrition 64 km of self-supported fuelling between aid stations.
- Hydration Vests Flask capacity for 64 km, without the bounce.
- GPS Watches Battery life first — a 64 km day outlasts most full-GPS modes.