Värmdö Ultramarathon - VUM 80K

Race completed

80 km Distance

1,500 m Climbing

6.3 Grit · Hardcore

59.3409° N, 18.7985° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 19 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.

Time limit 8 hours 6:00 min/km average. Tight. You are racing the clock from the start. Among the tightest 50 mi cut-offs we track. Measured against 477 races of the same distance. Cut-off calculator →

Typical conditions, September

Daytime high 16°C

Night low 11°C

Rainfall Mostly dry

Daylight 12 h 37 m of light

Regional 2001-2020 average for September — NASA POWER, grid elevation 15 m. Not a forecast.

Course notes

terrain This is a rolling course. Expect fast, runnable sections where rhythm is key.
gear With trail terrain, choose a shoe with moderate cushioning for optimal performance.

Gear for this race

Chosen for 80 km of trail with 1,500 m of ascent.

Trail Running Shoes 80 km of trail — cushioning that is still there in the last quarter.
Race Nutrition 80 km of self-supported fuelling between aid stations.
Hydration Vests Flask capacity for 80 km, without the bounce.
Headlamps 80 km almost certainly means running into the night.
GPS Watches Battery life first — a 80 km day outlasts most full-GPS modes.

Salomon

Aero Glide 4 Grvl

$159.95 ★★★★★ 4.5

Asics

Trabuco Max 2

★★★★★ 4.7

Skratch Labs

Sport Hydration Mix

Clean electrolyte drink mix with real fruit flavor. Low sugar.

$20 ★★★★★ 4.5

Salomon

ADV Skin 12

Industry-standard 12L race vest with front flask pockets and minimal bounce.

$180 ★★★★★ 4.8

Petzl

NAO RL

1500-lumen reactive lighting headlamp with 15-hour runtime. Automatic brightness adjustment.

$150 ★★★★★ 4.7

COROS

APEX 2 Pro

GPS running watch with 75-hour GPS battery, topo maps, and training metrics.

$500 ★★★★★ 4.7

All gear guides →

Overview

With an 8-hour time limit across 80 kilometres, Värmdö Ultramarathon - VUM 80K featured a cut-off tighter than 100% of 50mi races, and more generous than 0% of its 478 peers. Staged in Värmdö, Stockholm, by Douhan Sports, the event required a sustained pace of 6 minutes per kilometre from start to finish.

That aggressive tempo had to be maintained over trail terrain that packed 1500 metres of elevation gain, averaging 18.8 metres of climb per kilometre. The demanding schedule left no room for extended pauses or a slow start over the 80-kilometre course.

Similar races

Other 50 mi trail ultras, closest in distance first.