Krzysztof Zak
Born : 1949 Cat. M75 Ultrarunner since 2011 POL
21
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
1
Countries visited ?POLPoland
64,9%
Rank quotient ?This runner's calculation uses 21 eligible race(s): Σ(rank − 1) = 1 484; Σ finishers = 2 288. 1 484 / 2 288 × 100 = 64.86%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed21
Km — ultra races2 767 km
> 100 km12
> 160 km7
> 24h1
Longest race200,0 km

Km per year (ultra races)

232
2 races
2022
2023
2024
100
1 race
2025
2026

Race types (share of distance)

Road4,8%
Trail95,2%