Tacoma, WA, United States · Saturday, October 10, 2026
Defiance 50k
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, 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 | 50km | 58 | Ben Demeerleer · 04:01:55 | Teresa Makowski · 05:03:07 |
| 2024 | 50km | 55 | Ben Demeerleer · 04:09:01 | Teresa Makowski · 04:52:56 |
| 2023 | 50km | 55 | Ben Demeerleer · 04:14:29 | Katherine Timlin · 04:45:23 |
| 2022 | 50km | 57 | Jeffrey Barrington · 04:02:36 | Brittany Kealy · 04:51:01 |
| 2019 | 50km | 50 | Roni Kauri · 04:06:37 | Lisa Wonneberg · 04:36:57 |
| 2018 | 50km | 64 | Curtis Gessner · 04:20:23 | Merita Trohimovich · 05:00:04 |
| 2017 | 50km | 52 | Shaun Henderson · 04:20:58 | Lisa Wonneberg · 04:26:13 |
| 2016 | 50km | 39 | Korey Konga · 04:11:12 | Jo Markham · 04:25:27 |
| 2015 | 50km | 76 | Patrick McAuliffe · 04:02:42 | Becca Murdock · 05:12:10 |
| 2014 | 50km | 85 | Michael Lynes · 04:02:25 | Gretchen van Dyke · 04:42:15 |
The field grew 5% between 2024 (55) and 2025 (58). 24% 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.
Similar races
Other 50K trail ultras, closest in distance first.