Marek Kozlowski
Born : 1971 Cat. M55 Ultrarunner since 2016 POL
28
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
50
DUV-index+ ?Largest integer N such that the race distances provide at least N complete segments of N km in total. A single long race may therefore contribute several segments. See the DUV-Index tab for the detailed calculation. calculation details
3
Countries visited ?GBRUnited KingdomPOLPolandSVKSlovakia
42,5%
Rank quotient ?This runner's calculation uses 28 eligible race(s): Σ(rank − 1) = 1 377; Σ finishers = 3 242. 1 377 / 3 242 × 100 = 42.47%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed28
Km — ultra races3 079 km
> 100 km19
> 160 km4
> 200 km1
Longest race240,0 km

Km per year (ultra races)

163
1 race
2022
458
4 races
2023
253
2 races
2024
104
1 race
2025
102
1 race
2026

Race types (share of distance)

Road3,1%
Trail96,9%

Wins & podiums (ultra)

🏆 Win0
🏆 Win M1
🏅 Top 31
🏅 Top 3 M1
Longest winning streak0
Current streak0

HISTORY

28 race(s)
DateRacePerf.Rk
2026
25.04 102km POL3 x Kopa - Petrovicka Setka 18:01:44 h24
2025
04.10 104km POLBison Ultra-Trail 100 13:24:37 h142
2024
19.10 150km POL10. Lemkowyna Ultra Trail 150 27:48:21 h95
25.05 103km POLJaga-Kora Orzel 105 14:09:33 h11
2023
09.09 100.8km POL14. Bieg 7 dolin - 100 km Ultramaraton 15:20:26 h105
12.08 82.5km POLChudy Wawrzyniec 80 km 13:38:04 h110
08.06 178km POLStumilak -100 Mil Mountain Ultra Race 43:11:51 h26
29.04 60mi POL100 miles of Beskid Wyspowy - 60mi 15:48:44 h17
2022
05.08 163km POLGorce Ultra Trail 163 km 37:45:40 h20
2021
09.10 181km POLI. UltraKotlina180 33:37:42 h22
28.08 138km POLBeskydy Ultra Trail (BUT) 140km 29:44:14 h11
2020
27.08 103.8km SVKUltra Janosik - 100 km Legenda 21:00:14 h60
05.01 6h GBRNew Year Revolutions 45.222 km9
2019
29.08 110km SVKUltra Janosik - 100 km Legenda 21:26:07 h40
13.07 102km POLUltra Chojnik (UCH) 102 km 18:22:01 h72
18.05 104km POLBeskidzki Toporna Setra TS 100 15:09:54 h12
05.04 100km POLBeskidzka 160 Na Raty Salamandra Ultra Trail 100 km 16:20:04 h11
10.03 6h GBRDorney Lake Challenge 50.533 km2 🥈
2018
13.10 135km POLV. UltraKotlina130 19:00:51 h7
19.07 240km POLVI. Dolnośląski Festiwal Biegów Górskich - Bieg 7 Szczytów 240 km 43:29:11 h25
02.06 102km POLUltra Chojnik (UCH) 102 km 16:58:41 h32
24.02 103km POLIV. Zielonogórski Ultramaraton Nowe Granice 13:26:12 h104
2017
17.12 50km GBRPortsmouth Coastal Waterside 50K 4:48:47 h103
20.07 130km POLV. Dolnośląski Festiwal Biegów Górskich (Supertrail 130 km) 19:51:35 h20
23.06 100km POLXXIX Sudecka Setka - 100 km Boguszów Gorce 12:07:06 h37
27.05 102km POLUltra Chojnik (UCH) 102 km 18:47:26 h81
2016
25.06 57km POL3. Ultramaraton Gorski 8:35:58 h84
27.05 46km POLChojnik Maraton (CHM) 46 km 6:41:06 h123