Öster Malma, Nyköping, Sweden · Saturday, September 11, 2027

Fixed Distance 100K

Sörmlands 100 - 100km

344 days away

100 km Distance

not publishedn/a Climbing

5.0 est Grit · Challenging

Calculated from 100 km alone — the organiser has not published an elevation profile. Read 5.0 as a floor, not a verdict.

58.9520° N, 17.1589° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Field size ~86 Mid-sized. Company early, well spread out by halfway.

DUV results for the 2025 edition (100km) — 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 17°C

Night low 9°C

Rainfall Mostly dry

Daylight 13 h 18 m of light

Regional 2001-2020 average for September — NASA POWER, grid elevation 41 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2025	100km	86	Martin Eriksson · 10:42:09	Åsa Mårsell · 11:52:12
2024	100km	63	Sebastian Weidenhielm-Linden · 09:29:48	Christine Björk · 11:51:44
2023	100km	66	Johan Ställberg · 08:23:52	Anna Westlund · 11:45:56
2022	91km	25	Jakob Åberg · 07:48:12	Maria Paz Trillo · 13:36:10

The field grew 37% between 2024 (63) and 2025 (86). 15% of the 2025 field were women.

DUV results for the 2025 edition (100km) — 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

🥤 nutrition

For 100km+ efforts, prioritize real food at aid stations to prevent palate fatigue.

By UltraHub Expert

Gear for this race

Chosen for 100 km of trail.

Trail Running Shoes 100 km of trail — cushioning that is still there in the last quarter.
Race Nutrition Past 100 km the palate quits before the legs do — carry more than one flavour.
Hydration Vests Flask capacity for 100 km, without the bounce.
Headlamps 100 km almost certainly means running into the night.
Accessories Chafe and blisters end more 100 km races than fitness does.

Salomon

Ultra Glide 4

$159.95 ★★★★★ 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

Skratch Labs