
Sweden · Södermanland County
Sörmlands Trail Run
Distance
169 km
Date
September 11, 2026
Entry fee
1,950 SEK
€ / km
€1.10
Sweden’s autumn 100K - Roots, rocks, lakes, and relentless rolling single-track near Stockholm.
Elevation and Terrain
Total Meters
2800m
D+/KM
16.57m/km
For context, the Tor des Géants 330 loop has 73 D+/km.
Avg Uphill Gradient
5.7%
Avg Downhill Gradient
-5.6%
Uphill gradient distribution
Route Profile
Analysed 2026-05-02Terrain breakdown
Terrain
Climbs
Top climbs
2.6 km · 78 m gain
starts km 23 · avg 2.9% · max 16.9%
2.6 km · 70 m gain
starts km 7 · avg 2.7% · max 21.7%
2.0 km · 44 m gain
starts km 103 · avg 2.2% · max 15.4%
Top descents
4.0 km · 86 m drop
starts km 164 · avg -2.2% · max -14.3%
3.1 km · 54 m drop
starts km 97 · avg -1.7% · max -22.4%
2.1 km · 49 m drop
starts km 20 · avg -2.0% · max -32.4%
How Hard Is the Sörmlands Trail Run 169km? (55.8% Flat, 2,800m D+, and 36 Hours Through Södermanland Forest)
Q: How hard is the Sörmlands Trail Run 169km? | A: Hard in the way only very long flat races are hard. The 169km course gains just 2,800m (~16.6 m/km), with 55.8% of the terrain flat — rank 360 of ~390 in the DTR database. DW average gradients are 5.72% uphill and 5.63% downhill; all gradient is fully runnable. The biggest climb rises 78m. The challenge is 169km of sustained aerobic effort, fatigue management, and night running (12:00 Friday start; head torch required). 36-hour time limit.
Course Profile — Sörmlandsleden Trails, 13 Aid Stations, and a Point-to-Point Across 5 Södermanland Municipalities
Q: What is the Sörmlands Trail Run course like? | A: A point-to-point running south from Gripholms Slott in Mariefred (16th-century castle on Lake Mälaren) to Nävekvarn Folkets Park on the Baltic coast. 169km across 5 municipalities and 120+ private land parcels. 60% trail, 30% gravel, 10% asphalt, following the pre-marked Sörmlandsleden and Eriksgata networks. 13 aid stations approx every 13km; many at local restaurants and food producers. Cupless — bring your own cup. GPS tracker provided.
€1.10/km and 13 Minutes from Stockholm Skavsta: The Sörmlands Trail Run Value and Logistics Case
Q: How much does Sörmlands Trail Run 169km cost and is it sold out? | A: Entry is 1,950 SEK (Dec–Feb), 2,150 SEK (Mar–May), or 2,350 SEK (Jun–Sep 10) — approximately €1.10/km per DTR's AUTO calculation. Not sold out; registration closes September 10 or earlier if the race fills. Register via RaceID at sormlands100.com.
Getting to the Sörmlands Trail Run: Stockholm Skavsta (NYO) at 13 Minutes and Why Nyköping Is the Right Base
Q: Which airport should I use for the Sörmlands Trail Run? | A: Stockholm Skavsta (NYO) is the closest at approximately 13 minutes from Nyköping, the race logistics hub. Wizzair serves NYO from Warsaw, Bucharest, and Belgrade; Norwegian flies seasonally. From Stockholm Arlanda (ARN), train or bus to Nyköping takes approximately 2 hours. Best base is Nyköping — plentiful accommodation and on the race shuttle bus route to the Mariefred start.
Race files
Logistics
Nearest airport
Stockholm Skavsta (NYO) / Stockholm Arlanda (ARN)
Notes
Start: Only 15 minutes by car or bus from NYO to Nyköping. Wizzair flies from Warsaw, Bucharest, Belgrade into NYO, Norwegian flies seasonally from Spain / Public transport: train/bus/car from ARN to Nyköping/Trosa region takes about two hours / Accommodation: Nyköping is the best base with plentiful lodging, and is a stop on the shuttle bus to race starts, as well as the start of the 50km race. Airbnbs available at race finish and other towns nearby (car recommended)


