Ultra Running Hub Seattle, WA, United States · Saturday, October 24, 2026
Carkeek 6 Hour
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 2025 edition (6h) — ranked runners only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, October
Regional 2001-2020 average for October — NASA POWER, grid elevation 110 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2025 | 6h | 1 | Andrew Oconnor · 49.197 km | — |
| 2024 | 6h | 1 | Quentin Fiessinger · 50.565 km | — |
| 2023 | 6h | 3 | Alexander Andersson · 46.590 km | — |
| 2022 | 6h | 2 | Martin Criminale · 47.829 km | — |
| 2019 | 6h | 3 | Roni Kauri · 55.908 km | — |
| 2018 | 6h | 3 | Joshua Reddish · 59.883 km | — |
| 2018 | 6h | 2 | Kaleb Coleman · 47.459 km | Aubree Reichel · 45.592 km |
| 2017 | 6h | 5 | Shawn Bussert · 51.434 km | Audra Rundle · 50.565 km |
| 2017 | 6h | 2 | Garrett Skinner · 52.303 km | — |
| 2016 | 6h | 4 | Ian Ballentyne · 52.303 km | — |
The field has held steady: 1 in 2024, 1 in 2025. 0% of the 2025 field were women.
DUV results for the 2025 edition (6h) — 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 with 131 m of ascent.
- 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.
- GPS Watches Battery life first — an ultra outlasts most full-GPS modes.
Overview
The Carkeek 6 Hour is a timed event on a road loop in Seattle, WA, offering runners 6 hours to complete as many loops as possible. This format, where the clock determines the race rather than a set distance, makes it a different challenge from typical 50k events.
With 131 meters of elevation gain per loop, runners will accumulate significant vertical over the 6-hour duration. The road surface and loop under 5km provide consistent conditions for pacing and aid access.
Similar races
Other trail ultras of the same format.