Radioaseman Ultra Maraton 50 mailia

Race completed

80 km Distance

2 m Climbing

4.0 Grit · Challenging

61.4807° N, 21.7852° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 0 m / km Fast & Flat. This course is relatively flat and fast. Ideal for PB attempts.

Time limit 12 hours 9:00 min/km average. Tight. Room to walk the climbs and stop at aid. Tighter than 87% of 50 mi races. Measured against 472 races of the same distance. Cut-off calculator →

Field size ~4 Tiny. You will run alone for most of it.

DUV results for the 2025 edition (50mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, September

Daytime high 15°C

Night low 9°C

Rainfall Mostly dry

Daylight 12 h 00 m of light

Regional 2001-2020 average for September — NASA POWER, grid elevation 45 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2025	50mi	4	Ville-Veikka Silvola · 06:38:52	Outi Seppä · 07:51:23
2024	50mi	4	Mikko Liukka · 07:32:36	Mari Toivonen · 09:04:31
2023	50mi	2	Aki Leinonen · 09:37:35	Mari Toivonen · 09:14:00
2022	50mi	3	Jarkko Riitahuhta · 08:35:44	—
2021	50mi	8	Mikko Tenho · 07:35:33	Heta Rantanen · 08:19:40
2020	50mi	6	Juha Souko · 07:58:54	Mari Toivonen · 08:48:03
2019	50mi	21	Tom Olsson · 06:59:13	Anne Kiljunen · 06:50:47

The field has held steady: 4 in 2024, 4 in 2025. 25% of the 2025 field were women.

DUV results for the 2025 edition (50mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Course notes

terrain This is a fast & flat 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 2 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 A 12 h limit puts you out there after dark.
GPS Watches Battery life first — a 80 km day outlasts most full-GPS modes.