North Sea Ultra Sylt

Race completed

111 km Distance

210 m Climbing

5.9 Grit · Challenging

54.9538° N, 8.3441° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 2 m / km Fast & Flat. This course is relatively flat and fast. Ideal for PB attempts.

Time limit 16 hours 8:39 min/km average. Comfortable. Room to walk the climbs and stop at aid. Tighter than 74% of 100K races. Measured against 214 races of the same distance. Cut-off calculator →

Field size ~142 Mid-sized. Company early, well spread out by halfway.

DUV results for the 2026 edition (111km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, May

Daytime high 12°C

Night low 10°C

Rainfall Mostly dry

Daylight 15 h 42 m of light

Regional 2001-2020 average for May — NASA POWER, grid elevation 1 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2026	111km	142	Dominik Welzel · 08:53:39	Hannah Brinkies · 11:03:46
2025	111km	101	Christoph Lux · 09:26:30	Kira Kuschnerus · 11:13:45
2024	111km	45	Christoph Susek · 11:23:33	Julia Jezek · 10:47:42
2023	111km	14	Rene Voß · 11:16:00	Alexandra Bauer · 12:29:36

The field grew 41% between 2025 (101) and 2026 (142). 18% of the 2026 field were women.

DUV results for the 2026 edition (111km) — 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

⛰️ terrain

This is a fast & flat course. Expect fast, runnable sections where rhythm is key.

By UltraHub Expert

👟 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 111 km of trail with 210 m of ascent.

Trail Running Shoes 111 km of trail — cushioning that is still there in the last quarter.
Race Nutrition Past 111 km the palate quits before the legs do — carry more than one flavour.
Hydration Vests Flask capacity for 111 km, without the bounce.
Headlamps A 16 h limit puts you out there after dark.
Accessories Chafe and blisters end more 111 km races than fitness does.

Adidas

Terrex Agravic Speed Ultra

RunRepeat found the Adidas Terrex Agravic Speed Ultra to be perfect for midfoot and forefoot strikers, while iRunFar noted that the shoe feels incredibly effici…

★★★★★ 4.5

Salomon