Jacobus van de Sande
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14
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
27
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
3
Countries visited ?
Netherlands
South Africa
Switzerland
67,2%
Rank quotient ?This runner's calculation uses 14 eligible race(s): Σ(rank − 1) = 7 674; Σ finishers = 11 426. 7 674 / 11 426 × 100 = 67.16%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed14
Km — ultra races892 km
Longest race87,0 km
77th Comrades Marathon - Up Run (RSA) — 17/6/2002
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road63,7%
Trail36,3%
Records
HISTORY
17 race(s) · 1 split(s) nested| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 17/6/2002 | 77th Comrades Marathon - Up Run (RSA) | 87,00 | ×3 |
| ✓ 2 | 26/7/2003 | 18. Swiss Alpine Marathon | 78,00 | ×2 |
| ✓ 3 | 14/5/2000 | 2e Zes uurloop Breda ValkenbergRUN | 69,10 | ×2 |
| ✓ 4 | 13/5/2001 | 3e Zes uurloop Breda ValkenbergRUN | 67,34 | ×2 |
| ✓ 5 | 7/3/1999 | 4de Zes uurs ultraloop Stein | 64,22 | ×2 |
| ✓ 6 | 11/3/2001 | 6de Zes uurs ultraloop Stein | 63,00 | ×2 |
| ✓ 7 | 10/11/1996 | 19e Ultraloop om de Haarlemmermeer | 62,50 | ×2 |
| ✓ 8 | 3/3/2002 | 7de Zes uurs ultraloop Stein | 61,21 | ×2 |
| ✓ 9 | 10/11/1991 | 14e Schipholloop | 61,00 | ×2 |
| ✓ 10 | 12/11/1989 | 12e Schipholloop | 61,00 | ×2 |
| ✓ 11 | 13/11/1988 | 11e Schipholloop | 61,00 | ×2 |
| ✓ 12 | 7/3/2004 | 9de Zes uurs ultraloop Stein | 59,84 | ×2 |
| ✓ 13 | 1/3/2009 | 14de Zes uurs ultraloop Stein | 51,00 | ×1 |
| ✓ 14 | 15/5/2011 | 7e Zes uur van Steenbergen | 45,70 | ×1 |