Mark Schaffner
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Born : 1959
Cat. M65 Ultrarunner since 1995
18
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
44
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 ?South Africa
South Africa88,0%
Rank quotient ?This runner's calculation uses 18 eligible race(s): Σ(rank − 1) = 81 352; Σ finishers = 92 453. 81 352 / 92 453 × 100 = 87.99%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed18
Km — ultra races2 210 km
> 100 km3
> 160 km3
> 200 km3
> 24h3
> 48h3
Longest race411,0 km
8. Six Day Circuit Race — 23/3/2003
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road93,2%
Trail6,8%
HISTORY
19 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 23/3/2003 | 8. Six Day Circuit Race | 411,00 | ×9 |
| ✓ 2 | 11/8/2004 | Dusk To Dusk Six Day Circuit Race | 405,00 | ×9 |
| ✓ 3 | 10/8/2003 | Dusk To Dusk Six Day Circuit Race | 403,00 | ×9 |
| ✓ 4 | 16/6/1999 | 74th Comrades Marathon - Down Run | 89,00 | ×2 |
| ✓ 5 | 16/6/1997 | 72nd Comrades Marathon - Down Run | 89,00 | ×2 |
| ✓ 6 | 20/5/1995 | 70th Comrades Marathon - Down Run | 89,00 | ×2 |
| ✓ 7 | 16/6/2000 | 75th Comrades Marathon - Up Run (RSA) | 87,00 | ×1 |
| ✓ 8 | 16/6/1998 | 73rd Comrades Marathon - Up Run | 87,00 | ×1 |
| ✓ 9 | 17/6/1996 | 71st Comrades Marathon - Up Run | 87,00 | ×1 |
| ✓ 10 | 25/8/2007 | 6th Akasia Dawn2Dusk 12h Run | 63,00 | ×1 |
| ✓ 11 | 8/9/2012 | 20. Mont-Aux-Sources 50km Challenge | 50,00 | ×1 |
| ✓ 12 | 21/4/2012 | 26th Loskop Ultra Marathon 50km (RSA) | 50,00 | ×1 |
| ✓ 13 | 11/9/2010 | 18. Mont-Aux-Sources 50km Challenge | 50,00 | ×1 |
| ✓ 14 | 12/9/2009 | 17. Mont-Aux-Sources 50km Challenge | 50,00 | ×1 |
| ✓ 15 | 23/4/2005 | 19th Loskop Ultra Marathon 50km | 50,00 | ×1 |
| ✓ 16 | 15/3/2003 | 13th Om Die Dam 50km (RSA) | 50,00 | ×1 |
| ✓ 17 | 16/3/2002 | 12th Om Die Dam 50km (RSA) | 50,00 | ×1 |
| ✓ 18 | 18/3/2000 | 10th Om Die Dam 50km | 50,00 | ×1 |