Sistiana, Italy · Sunday, January 10, 2027

Fixed Distance 50K

S1 TransKarst Ultra

67 days away

55 km Distance

1,600 m Climbing

5.2 Grit · Challenging

45.7716° N, 13.6373° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 29 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.

Time limit 13 hours 14:11 min/km average. Comfortable. Room to walk the climbs and stop at aid. More forgiving than 70% of 50K races. Measured against 1083 races of the same distance. Cut-off calculator →

Field size ~276 Large. Rarely out of sight of another runner.

DUV results for the 2026 edition (58km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, January

Daytime high 3°C

Night low -3°C

Rainfall Mostly dry

Daylight 8 h 54 m of light

Regional 2001-2020 average for January — NASA POWER, grid elevation 512 m. Not a forecast.

Results history

Year	Race	Finishers	Men's winner	Women's winner
2026	58km	276	Billy Curtis · 04:47:59	Caroline-Claudia Erhart · 06:02:17
2025	54km	263	Gianluca Pinton · 05:09:05	Martina Trojakova · 05:58:45
2024	57km	226	Raphael Miks · 05:22:30	Nicol Guidolin · 06:16:35
2023	57km	227	Mirko Cocco · 04:56:52	Lenka Hiklova · 06:04:38
2022	57km	247	Ivan Favretto · 05:01:00	Irene Zamboni · 06:49:47
2021	57km	148	Andrea Pozzer · 05:20:38	Nicol Guidolin · 06:17:47
2020	57km	550	Martin Halasz · 05:08:02	Julia Kessler · 05:57:20
2019	57km	412	Martin Halasz · 05:03:10	Rea Kolbl · 05:40:37
2018	57km	360	Florian Reichert · 05:07:05	Lisa Borzani · 06:22:34
2017	57km	290	Luca Carrara · 05:12:16	Annemarie Gross · 06:45:51

The field grew 5% between 2025 (263) and 2026 (276). 24% of the 2026 field were women.

DUV results for the 2026 edition (58km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Course notes

terrain This is a rolling course. Expect fast, runnable sections where rhythm is key.
gear With trail terrain, choose a shoe with moderate cushioning for optimal performance.

Gear for this race

Chosen for 55 km of trail with 1,600 m of ascent.

Trail Running Shoes 29 m of climb per kilometre — grip and rock protection before cushioning.
Race Nutrition 55 km of self-supported fuelling between aid stations.
Hydration Vests Pole attachment and chest-strap stability on steep ground.
Trekking Poles 1,600 m of ascent to walk up.
Headlamps A 13 h limit puts you out there after dark.

Salomon

Sense Ride 5

RunRepeat found the Salomon Sense Ride 5 to have immaculate lockdown and a smooth and stable ride, making it confident on moderate trails and steep downhills. I…

★★★★★ 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

Skratch Labs

Sport Hydration Mix

Clean electrolyte drink mix with real fruit flavor. Low sugar.

$20 ★★★★★ 4.5

Salomon

ADV Skin 12

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

$180 ★★★★★ 4.8

Black Diamond

Distance FLZ

Lightweight folding trekking poles with FlickLock Z adjustment. 340g per pole.

$170 ★★★★★ 4.7

Nitecore

UT32

Dual-beam trail running headlamp (1100 lumens) with spot and flood beams.

$100 ★★★★★ 4.5

All gear guides →

Overview

The S1 TransKarst Ultra is a 55-kilometer trail race held in Sistiana, Italy, each January by Sentierouno ASD, with its 10th edition in 2026. The route features 1600 meters of elevation gain, averaging 29.1 meters of climb per kilometer.

With a time limit of 13 hours, the cutoff is more generous than 70% of 50k races, allowing for a pace of 14.2 minutes per kilometer. The field, which saw 276 finishers in 2026, is bigger than 94% of 50k races. Entry fees range from 55 to 104 Euro.

Similar races

Other 50K trail ultras, closest in distance first.