Renton, WA, United States · Sunday, May 24, 2026

Fixed Distance 50K

Pigtails Challenge 50 Km

Race completed
50 km Distance
900 m Climbing
3.9 Grit · Challenging
47.4829° N, 122.2171° W © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 18 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.
Time limit 10 hours 12:00 min/km average. Generous. Walkable throughout for most of the field. About average for a 50K. Measured against 1034 races of the same distance. Cut-off calculator →
Field size ~15 Tiny. You will run alone for most of it.

DUV results for the 2026 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, May

Daytime high 17°C
Night low 8°C
Rainfall Mostly dry
Daylight 15 h 25 m of light

Regional 2001-2020 average for May — NASA POWER, grid elevation 110 m. Not a forecast.

Results history

Year Race Finishers Men's winner Women's winner
2026 50km 15 Craig Romano · 05:38:23 Amanda Rasmussen · 05:33:21
2025 50km 28 Robert Irr · 03:29:03 Shannon Rolbiecki · 05:28:40
2024 50km 10 Jens Hansen · 04:55:54 Amy Mohelnitzky · 05:59:02
2023 50km 23 Matthew Logan · 03:46:05 Stefanie Bernosky · 05:17:50
2022 50km 12 Brandon Eddards · 04:15:01 Hannah McLean · 05:10:08
2019 50km 29 Yon Yilma · 03:16:01 Tabatha Collins · 05:28:35
2018 50km 19 Jon Priestman · 04:37:50 Tattie Bailey · 04:57:16
2017 50km 20 Steve Slaby · 03:50:02 Gina Slaby · 03:50:15
2016 50km 23 Steve Walters · 04:55:56 Maureen Anderson · 04:45:01

The field shrank 46% between 2025 (28) and 2026 (15). 80% of the 2026 field were women.

DUV results for the 2026 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

⛰️ terrain

This is a rolling course. Expect fast, runnable sections where rhythm is key.

By UltraHub Expert
👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

Gear for this race

Chosen for 50 km of trail with 900 m of ascent.

  • 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.
All gear guides →

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