Vashon Island, WA, United States · Saturday, June 5, 2027

Fixed Distance 50K

Vashon Ultramarathon 50k

248 days away

50 km Distance

not publishedn/a Climbing

2.5 est Grit · Entry level

Calculated from 50 km alone — the organiser has not published an elevation profile. Read 2.5 as a floor, not a verdict.

47.4209° N, 122.4737° W © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Time limit 9 hours 10:48 min/km average. Generous. Walkable throughout for most of the field. Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. Tighter than 71% of 50K races. Measured against 1034 races of the same distance. Cut-off calculator →

Field size ~32 Small. Long stretches with nobody in sight.

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, June

Daytime high 20°C

Night low 11°C

Rainfall Mostly dry

Daylight 15 h 46 m of light

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

Results history

Year	Race	Finishers	Men's winner	Women's winner
2026	50km	32	Bjorn Syse · 03:52:11	Alice May · 04:39:26
2025	50km	37	Corbyn Jahn · 03:45:06	Rebecca Brookes · 04:14:10
2024	50km	30	Cruz Ortiz-Ramirez · 03:58:59	Kristi Williams · 04:11:08
2023	50km	46	Jeffrey Barrington · 03:42:02	Kristi Williams · 04:15:02
2022	50km	42	Ben Winfield · 03:52:40	Christine Mosley · 04:24:04
2021	50km	69	Paul Young · 03:46:10	Meredith Edwards · 04:39:03
2019	50km	61	Ben Brown · 03:23:29	Christine Mosley · 04:20:53
2018	50km	47	Richard Lockwood · 03:49:25	Christine Mosley · 04:27:03
2018	12h	13	Nicholas O'Neill · 108.600 km	Margaret Hadley · 127.100 km
2017	50km	41	Steve Slaby · 03:47:14	Gina Slaby · 03:55:04

The field shrank 14% between 2025 (37) and 2026 (32). 34% 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

👟 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.

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.

La Sportiva

Prodigio Pro

RunRepeat found the La Sportiva Prodigio Pro to have a secure, locked-in fit due to its premium upper, and also praised the shoe's energetic ride, particularly…

$225 ★★★★★ 4.6

Brooks

Catamount 3

RunRepeat found the Brooks Catamount 3 to have a cozier upper that enhances the overall fit, though breathability and durability could be better. iRunFar noted…

★★★★★ 4.5

Tailwind