Krzysztof Sobczak
Ultrarunner since 2013 POL
2
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
17
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
2
Countries visited ?BRABrazilPOLPoland
16,5%
Rank quotient ?This runner's calculation uses 2 eligible race(s): Σ(rank − 1) = 108; Σ finishers = 653. 108 / 653 × 100 = 16.54%. A win adds 0 to the numerator. Lower is better.

Totals

Ultras completed7
Km — ultra races306 km
> 100 km1
> 160 km1
> 200 km1
Longest race254,0 km

Km per year (ultra races)

2022
2023
2024
2025
2026

Race types (share of distance)

Trail17,0%
Stage83,0%

Records

No record for a classic ultra format

HISTORY

2 race(s)
DateRacePerf.Rk
2015
11.10 52km POLUltra Maraton Bieszczadzki 6:02:58 h103
2013
03.10 254km/6stages BRAJungle Marathon, 254 km in 6 Etappen 40:13:42 h7