Gerald Sack
External sources
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Born : 1950
Cat. M75 Ultrarunner since 1993
26
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
36
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
5
Countries visited ?
Austria
CzechiaGermany
Slovenia
Switzerland
AustriaCzechiaGermanySloveniaSwitzerland65,9%
Rank quotient ?This runner's calculation uses 26 eligible race(s): Σ(rank − 1) = 12 108; Σ finishers = 18 371. 12 108 / 18 371 × 100 = 65.91%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed26
Km — ultra races1 747 km
> 24h1
Longest race100,0 km
66. Bieler Lauftage - 100km — 6/6/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road33,4%
Trail66,6%
HISTORY
26 race(s)| Runner | Races in common |
|---|---|