Errol Yudelman
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Born : 1959
Cat. M65 Ultrarunner since 1980
10
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
22
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 Africa21,1%
Rank quotient ?This runner's calculation uses 10 eligible race(s): Σ(rank − 1) = 9 385; Σ finishers = 44 398. 9 385 / 44 398 × 100 = 21.14%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed10
Km — ultra races625 km
Longest race90,0 km
59th Comrades Marathon - Down Run — 1/6/1984
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
10 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2015 | ||||
| 31.05 | 87km | 90th Comrades Marathon - Up Run |
10:57:31 h | 7336 |
| 1987 | ||||
| 18.04 | 56km | 18th Two Oceans Marathon |
4:18:21 h | 586 |
| 1986 | ||||
| 29.03 | 56km | 17th Two Oceans Marathon |
3:57:48 h | 304 |
| 1985 | ||||
| 06.04 | 56km | 16th Two Oceans Marathon |
3:52:23 h | 156 |
| 1984 | ||||
| 01.06 | 90km | 59th Comrades Marathon - Down Run |
6:46:36 h | 178 |
| 21.04 | 56km | 15th Two Oceans Marathon |
3:50:34 h | 131 |
| 1983 | ||||
| 02.04 | 56km | 14th Two Oceans Marathon |
3:49:27 h | 96 |
| 1982 | ||||
| 10.04 | 56km | 13th Two Oceans Marathon |
3:57:28 h | 198 |
| 1981 | ||||
| 18.04 | 56km | 12th Two Oceans Marathon |
3:55:49 h | 162 |
| 1980 | ||||
| 05.04 | 56km | 11th Two Oceans Marathon |
4:13:55 h | 248 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 1/6/1984 | 59th Comrades Marathon - Down Run | 90,00 | ×4 |
| ✓ 2 | 31/5/2015 | 90th Comrades Marathon - Up Run | 87,00 | ×3 |
| ✓ 3 | 18/4/1987 | 18th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 4 | 29/3/1986 | 17th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 5 | 6/4/1985 | 16th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 6 | 21/4/1984 | 15th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 7 | 2/4/1983 | 14th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 8 | 10/4/1982 | 13th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 9 | 18/4/1981 | 12th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 10 | 5/4/1980 | 11th Two Oceans Marathon | 56,00 | ×2 |