David Jennings
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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
55,6%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 34 271; Σ finishers = 61 655. 34 271 / 61 655 × 100 = 55.59%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed15
Km — ultra races970 km
> 100 km1
> 160 km1
Longest race160,9 km
4th Washie 100 Miler — 27/6/1980
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Records
HISTORY
15 race(s) · 1 split(s) nested| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2019 | ||||
| 09.06 | 87km | 11:56:56 h | 16117 | |
| 2013 | ||||
| 27.04 | 50km | 5:18:14 h | 157 | |
| 30.03 | 56km road race | 5:52:28 h | 3964 | |
| 30.03 | 50km road race | 44th Two Oceans Marathon - 50km Split (RSA) | 5:14:40 h | 4024 |
| 1991 | ||||
| 30.03 | 56km | 5:36:13 h | 4583 | |
| 1989 | ||||
| 25.03 | 56km | 4:08:43 h | 366 | |
| 1988 | ||||
| 02.04 | 56km | 4:53:24 h | 1838 | |
| 1986 | ||||
| 29.03 | 56km | 5:04:04 h | 2300 | |
| 1985 | ||||
| 06.04 | 56km | 3:57:41 h | 273 | |
| 1983 | ||||
| 02.04 | 56km | 5:03:01 h | 1400 | |
| 1982 | ||||
| 10.04 | 56km | 4:31:26 h | 623 | |
| 1981 | ||||
| 18.04 | 56km | 5:29:28 h | 1313 | |
| 1980 | ||||
| 27.06 | 100mi | 22:55:54 h | 22 | |
| 05.04 | 56km | 4:49:15 h | 675 | |
| 1979 | ||||
| 14.04 | 56km | 4:15:18 h | 195 | |
| 1978 | ||||
| 25.03 | 56km | 5:11:00 h | 460 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 27/6/1980 | 4th Washie 100 Miler | 160,93 | ×5 |
| ✓ 2 | 9/6/2019 | 94th Comrades Marathon - Up Run | 87,00 | ×3 |
| ✓ 3 | 30/3/2013 | 44th Two Oceans Marathon (RSA) | 56,00 | ×2 |
| ✓ 4 | 30/3/1991 | 22nd Two Oceans Marathon | 56,00 | ×2 |
| ✓ 5 | 25/3/1989 | 20th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 6 | 2/4/1988 | 19th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 7 | 29/3/1986 | 17th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 8 | 6/4/1985 | 16th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 9 | 2/4/1983 | 14th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 10 | 10/4/1982 | 13th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 11 | 18/4/1981 | 12th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 12 | 5/4/1980 | 11th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 13 | 14/4/1979 | 10th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 14 | 25/3/1978 | 9th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 15 | 27/4/2013 | 30th Bay Ultra 50 km | 50,00 | ×1 |