Josef-Karl Sonnenberg
External sources
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Born : 1927
Cat. M95 Ultrarunner since 1971
26
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
2
Countries visited ?Germany
Netherlands
GermanyNetherlands44,6%
Rank quotient ?This runner's calculation uses 26 eligible race(s): Σ(rank − 1) = 5 002; Σ finishers = 11 224. 5 002 / 11 224 × 100 = 44.57%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed26
Km — ultra races2 600 km
Longest race100,0 km
100 km Lauf Rheine-Elte — 7/9/1991
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road88,5%
Trail11,5%
Records
HISTORY
26 race(s)| Runner | Races in common |
|---|---|