Stockholm, Sweden · Saturday, October 10, 2026

Fixed Distance 50K

Sörmland Ultra Marathon

10 days to go

51 km Distance

not publishedn/a Climbing

2.6 est Grit · Entry level

Calculated from 51 km alone — the organiser has not published an elevation profile. Read 2.6 as a floor, not a verdict.

59.3294° N, 18.0687° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Time limit 8 hours 9:25 min/km average. Comfortable. Room to walk the climbs and stop at aid. Climbing is unpublished, so this pace is a ceiling on the effort, not a measure of it. Tighter than 89% of 50K races. Measured against 1034 races of the same distance. Cut-off calculator →

Field size ~126 Mid-sized. Company early, well spread out by halfway.

DUV results for the 2025 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, October

Daytime high 10°C

Night low 4°C

Rainfall Mostly dry

Daylight 10 h 47 m of light

Regional 2001-2020 average for October — NASA POWER, grid elevation 27 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2025	50km	126	Jakob Åberg · 03:36:45	Frida Södermark · 04:49:28
2024	55km	115	Jakob Klasen · 03:51:37	Mia Edding · 04:33:35
2023	55km	108	Anders Fox · 03:21:04	Kajsa Berg · 04:25:14
2022	50km	100	Jakob Åberg · 03:37:57	Kajsa Berg · 04:22:47
2021	50km	117	Nicolas Remires · 03:40:43	Emeli Grafström · 04:16:49
2019	50km	209	Thibault Duval · 03:54:51	Emeli Grafström · 04:22:35
2018	50km	219	Daniel Nilsson · 03:35:08	Malin Hjalmarsson · 04:05:15
2017	50km	147	Daniel Nilsson · 03:33:32	Jenny Ramstedt · 04:21:04
2016	50km	206	Andreas McConville · 03:10:51	Frida Södermark · 04:09:55
2015	50km	243	Daniel Nilsson · 03:27:11	Kajsa Berg · 03:42:52

The field grew 10% between 2024 (115) and 2025 (126). 17% of the 2025 field were women.

DUV results for the 2025 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 51 km of trail.

Trail Running Shoes 51 km of trail — cushioning that is still there in the last quarter.
Race Nutrition 51 km of self-supported fuelling between aid stations.
Hydration Vests Flask capacity for 51 km, without the bounce.
GPS Watches Battery life first — a 51 km day outlasts most full-GPS modes.

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

Adidas

Terrex Speed Ultra

RunRepeat found the Adidas Terrex Speed Ultra to have a grippy outsole and great lockdown, while iRunFar noted that the shoe works on a variety of trail conditi…

★★★★★ 4.5

Maurten

Gel 100

Hydrogel technology for 25g carbs per gel with minimal GI distress.

$3.5 ★★★★★ 4.7

Salomon

ADV Skin 12

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

$180 ★★★★★ 4.8

COROS

APEX 2 Pro

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

$500 ★★★★★ 4.7

All gear guides →

Overview

The Sörmland Ultra Marathon is a 51 km trail race in Stockholm, Sweden, held in October. With a field of 126 finishers in its latest edition, it is bigger than 83% of 50k races.

The 8-hour time limit translates to a 9.4 minutes per km cutoff pace, which is tighter than 89% of 50k races. This pace leaves less margin for error than most races of this distance. The course primarily follows the Sörmlandsleden hiking route, featuring mainly trail with some gravel roads and tarmac sections.

Similar races

Other 50K trail ultras, closest in distance first.