John Bouwens
External sources
Loading FFA
Loading MV
FFA diagnostics
Run “Search / refresh FFA” to see each season, HTTP response, candidate and DUV comparison.
MarathonView diagnostics
Run “Refresh MV” to see login, session validation and parser status.
Cached locally. Empty refreshes never erase the last valid snapshot.
50
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
52
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 ?
Netherlands
36,1%
Rank quotient ?This runner's calculation uses 69 eligible race(s): Σ(rank − 1) = 1 022; Σ finishers = 2 832. 1 022 / 2 832 × 100 = 36.09%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed69
Km — ultra races4 890 km
> 100 km8
> 24h1
Longest race120,0 km
16e De 120 van Texel — 27/3/2022
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road34,4%
Trail65,6%
Wins & podiums (ultra)
🏆 Win3
🏆 Win M3
🏅 Top 310
🏅 Top 3 M10
Longest winning streak2
Current streak0
HISTORY
73 race(s) · 3 split(s) nested| Runner | Races in common |
|---|---|