Charles Matthews
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15
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
28
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
55,4%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 31 573; Σ finishers = 57 027. 31 573 / 57 027 × 100 = 55.37%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed15
Km — ultra races1 007 km
Longest race90,0 km
56th Comrades Marathon - Up Run — 1/6/1981
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Records
No record for a classic ultra format
HISTORY
15 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 1992 | ||||
| 18.04 | 56km | 5:37:24 h | 5148 | |
| 1991 | ||||
| 31.05 | 89km | 8:54:00 h | 3598 | |
| 30.03 | 56km | 5:58:40 h | 6935 | |
| 1990 | ||||
| 14.04 | 56km | 5:57:37 h | 6735 | |
| 1984 | ||||
| 21.04 | 56km | 5:05:34 h | 1858 | |
| 1983 | ||||
| 02.04 | 56km | 4:42:49 h | 936 | |
| 1982 | ||||
| 10.04 | 56km | 5:07:56 h | 1321 | |
| 1981 | ||||
| 01.06 | 90km | 8:04:56 h | 757 | |
| 18.04 | 56km | 4:33:15 h | 566 | |
| 1980 | ||||
| 31.05 | 90km | 8:14:00 h | 1117 | |
| 05.04 | 56km | 5:22:48 h | 1075 | |
| 1979 | ||||
| 14.04 | 56km | 4:09:17 h | 163 | |
| 1978 | ||||
| 31.05 | 90km | 7:56:00 h | 591 | |
| 25.03 | 56km | 4:35:55 h | 221 | |
| 1973 | ||||
| 01.06 | 88km | 8:55:00 h | 567 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 1/6/1981 | 56th Comrades Marathon - Up Run | 90,00 | ×3 |
| ✓ 2 | 31/5/1980 | 55th Comrades Marathon - Down Run | 90,00 | ×3 |
| ✓ 3 | 31/5/1978 | 53rd Comrades Marathon - Down Run | 90,00 | ×3 |
| ✓ 4 | 31/5/1991 | 66th Comrades Marathon - Down Run | 89,00 | ×3 |
| ✓ 5 | 1/6/1973 | 48th Comrades Marathon - Down Run | 88,00 | ×3 |
| ✓ 6 | 18/4/1992 | 23rd Two Oceans Marathon | 56,00 | ×2 |
| ✓ 7 | 30/3/1991 | 22nd Two Oceans Marathon | 56,00 | ×2 |
| ✓ 8 | 14/4/1990 | 21st Two Oceans Marathon | 56,00 | ×2 |
| ✓ 9 | 21/4/1984 | 15th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 10 | 2/4/1983 | 14th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 11 | 10/4/1982 | 13th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 12 | 18/4/1981 | 12th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 13 | 5/4/1980 | 11th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 14 | 14/4/1979 | 10th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 15 | 25/3/1978 | 9th Two Oceans Marathon | 56,00 | ×2 |