Christian Gruson
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5
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 ?
France
Netherlands
64,1%
Rank quotient ?This runner's calculation uses 5 eligible race(s): Σ(rank − 1) = 1 725; Σ finishers = 2 693. 1 725 / 2 693 × 100 = 64.05%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed5
Km — ultra races354 km
Longest race100,0 km
23ème Steenwerck 100km course de nuit — 20/5/1998
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road62,7%
Trail37,3%
Records
HISTORY
5 race(s) · 2 split(s) nested| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2008 | ||||
| 05.10 | 65km | 10:31:59 h | 23 | |
| 2007 | ||||
| 28.10 | 67km trail race | 12:04:28 h | 1515 | |
| 1999 | ||||
| 07.03 | 6h | 63.506 km | 56 | |
| 07.03 | 50km | 4de Zes uurs ultraloop Stein - 50km Split | 4:40:21 h | 72 |
| 1998 | ||||
| 20.05 | 100km | 13:23:38 h | 47 | |
| 01.03 | 6h | 58.748 km | 89 | |
| 01.03 | 50km | 3de Zes uurs ultraloop Stein - 50km Split | 5:09:05 h | 98 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 20/5/1998 | 23ème Steenwerck 100km course de nuit | 100,00 | ×5 |
| ✓ 2 | 28/10/2007 | 13ème La Grande Course des Templiers (FRA) | 67,00 | ×3 |
| ✓ 3 | 5/10/2008 | 1ère Raid 59 Nocturne | 65,00 | ×3 |
| ✓ 4 | 7/3/1999 | 4de Zes uurs ultraloop Stein | 63,51 | ×3 |
| ✓ 5 | 1/3/1998 | 3de Zes uurs ultraloop Stein | 58,75 | ×3 |