Tyresö Extreme Challenge (TEC) - 50 miles

Race completed

80 km Distance

1,744 m Climbing

6.6 Grit · Hardcore

What the course asks

Climbing rate 22 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.

Time limit 16 hours 12:00 min/km average. Generous. Walkable throughout for most of the field. About average for a 50 mi. Measured against 471 races of the same distance. Cut-off calculator →

Field size ~22 Small. Long stretches with nobody in sight.

DUV results for the 2026 edition (50mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2026	50mi	22	Emil Larsson · 08:12:04	Elin Tengbert · 08:49:00
2025	80.5km	34	Conny Svahn · 06:57:18	Johanna Bygdell · 07:33:31
2024	80.3km	46	Johan Hartelius · 07:03:04	Dagny Bengs · 07:28:00
2023	80.3km	47	Conny Svahn · 06:57:08	Jenny Josefsson · 07:44:24
2022	50mi	3	Markus Spångberg · 10:16:22	—
2022	80.3km	50	Axel Svärdhagen · 06:34:09	Janie Nyström · 08:00:54
2021	50mi	2	Mikael Hasselrot · 10:01:20	—
2021	50mi	10	Deri Thomas · 07:19:00	Amanda Renström · 10:49:51
2020	50mi	12	Shanti Pisto-Forsberg · 07:03:13	Susanne Lorinder · 08:16:40
2020	50mi	13	Karl Åsbrink · 09:04:48	Linda Wiese · 08:49:00

The field shrank 35% between 2025 (34) and 2026 (22). 36% of the 2026 field were women.

DUV results for the 2026 edition (50mi) — 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 rolling 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

Gear for this race

Chosen for 80 km of trail with 1,744 m of ascent.

Trail Running Shoes 22 m of climb per kilometre — grip and rock protection before cushioning.
Race Nutrition 80 km of self-supported fuelling between aid stations.
Hydration Vests Pole attachment and chest-strap stability on steep ground.
Trekking Poles 1,744 m of ascent to walk up.
Headlamps A 16 h limit puts you out there after dark.

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

Salomon