Jelenia Gora, Sobieszow, Poland · Saturday, September 5, 2026

Fixed Distance 50K

Chojnik Karkonoski Festiwal Biegowy

Race completed
50 km Distance
5,100 m Climbing
10.0 Grit · Elite / extreme
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50.8470° N, 15.6414° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 102 m / km Vertical. Extreme verticality. This is a technical mountain course with sustained steep grades.
Time limit 20 hours 24:00 min/km average. Generous. Walkable throughout for most of the field. Among the most forgiving 50K cut-offs we track. Measured against 1034 races of the same distance. Cut-off calculator →
Field size ~77 Mid-sized. Company early, well spread out by halfway.

DUV results for the 2023 edition (101.5km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, September

Daytime high 18°C
Night low 9°C
Rainfall Mostly dry
Daylight 13 h 21 m of light

Regional 2001-2020 average for September — NASA POWER, grid elevation 361 m. Not a forecast.

Results history

Year Race Finishers Men's winner Women's winner
2023 101.5km 77 Jakub Gorzelanczyk · 11:19:25 Nina Grabos · 14:30:53
2022 101.5km 90 Michal Jurek · 11:42:11 Malgorzata Moczulska · 13:15:43
2021 101.5km 97 Przemyslaw Marciniak · 12:24:34 Anna Bieniecka · 16:29:36
2020 101.5km 114 Roger Karwaczynski · 12:20:38 Malgorzata Moczulska · 13:50:38
2019 102km 109 Witold Juda · 11:51:42 Dominika Niemiro · 15:39:16
2018 102km 117 Maciej Pisarek · 13:00:15 Wioletta Dessauer · 15:33:00
2017 102km 139 Sebastian Borowczyk · 13:22:03 Anna Karolak · 16:24:50
2016 100km 71 Vaidas Zlabys · 11:33:01 Viktorija Tomaseviciene · 17:21:03
2015 100km 27 Marcin Pawlowski · 12:40:40 Renata Cesnaviciene · 18:12:34

The field shrank 14% between 2022 (90) and 2023 (77). 10% of the 2023 field were women.

DUV results for the 2023 edition (101.5km) — 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 vertical course. Poles are highly recommended for the sustained climbs.

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 50 km of trail with 5,100 m of ascent.

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

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

Maurten

Gel 100

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

$3.5 ★★★★★ 4.7

Nathan

VaporKrar 12L

12L race vest co-designed with ultra champion Rob Krar, with insulated bladder pocket.

$170 ★★★★★ 4.6

Komperdell

Carbon Ultralight Vario 4

4-section folding carbon poles with compact pack size for mandatory gear.

$160 ★★★★★ 4.5

Petzl

NAO RL

1500-lumen reactive lighting headlamp with 15-hour runtime. Automatic brightness adjustment.

$150 ★★★★★ 4.7
All gear guides →

Overview

The Chojnik Karkonoski Festiwal Biegowy is a 50k trail race in Jelenia Gora, Sobieszow, Poland. The race takes place in September, with the next edition scheduled for 2026.

With 5100m of elevation gain over 50km, this course climbs 102m per kilometer, making it a highly challenging 50k. The 20-hour time limit translates to a 24 min/km pace, which is tighter than 2% of 50k races. This leaves little margin for error on a course with this much climbing.

The race has been run 9 times since 2015, with 77 finishers in its most recent 2023 edition. Its field size is larger than 72% of 50k races.

Similar races

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