Brian Henderson
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18
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
29
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
43,8%
Rank quotient ?This runner's calculation uses 18 eligible race(s): Σ(rank − 1) = 50 077; Σ finishers = 114 397. 50 077 / 114 397 × 100 = 43.77%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed18
Km — ultra races1 195 km
Longest race89,0 km
78th Comrades Marathon - Down Run (RSA) — 16/6/2003
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road74,4%
Trail25,6%
Records
HISTORY
18 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 16/6/2003 | 78th Comrades Marathon - Down Run (RSA) | 89,00 | ×3 |
| ✓ 2 | 16/6/2001 | 76th Comrades Marathon - Down Run (RSA) | 89,00 | ×3 |
| ✓ 3 | 16/6/1999 | 74th Comrades Marathon - Down Run | 89,00 | ×3 |
| ✓ 4 | 16/6/2004 | 79th Comrades Marathon - Up Run (RSA) | 87,00 | ×3 |
| ✓ 5 | 17/6/2002 | 77th Comrades Marathon - Up Run (RSA) | 87,00 | ×3 |
| ✓ 6 | 16/6/2000 | 75th Comrades Marathon - Up Run (RSA) | 87,00 | ×3 |
| ✓ 7 | 16/6/1998 | 73rd Comrades Marathon - Up Run | 87,00 | ×3 |
| ✓ 8 | 26/3/2005 | 36th Two Oceans Marathon (RSA) | 56,00 | ×1 |
| ✓ 9 | 10/4/2004 | 35th Two Oceans Marathon (RSA) | 56,00 | ×1 |
| ✓ 10 | 30/3/2002 | 33rd Two Oceans Marathon | 56,00 | ×1 |
| ✓ 11 | 14/4/2001 | 32rd Two Oceans Marathon | 56,00 | ×1 |
| ✓ 12 | 16/7/2005 | 17th Rhodes 52 km Trail Run | 52,00 | ×1 |
| ✓ 13 | 19/7/2003 | 15th Rhodes 52 km Trail Run | 52,00 | ×1 |
| ✓ 14 | 21/7/2001 | 13th Rhodes 52 km Trail Run | 52,00 | ×1 |
| ✓ 15 | 19/2/2005 | 23rd Bay Ultra 50 km | 50,00 | ×1 |
| ✓ 16 | 14/9/2002 | 10. Mont-Aux-Sources 50km Challenge | 50,00 | ×1 |
| ✓ 17 | 1/9/2001 | 9. Mont-Aux-Sources 50km Challenge | 50,00 | ×1 |
| ✓ 18 | 2/9/2000 | 8. Mont-Aux-Sources 50km Challenge | 50,00 | ×1 |