David Markwick
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Born : 1931
Cat. M95 Ultrarunner since 1976
12
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
2
Countries visited ?
NetherlandsSouth Africa
NetherlandsSouth Africa12,6%
Rank quotient ?This runner's calculation uses 12 eligible race(s): Σ(rank − 1) = 592; Σ finishers = 4 704. 592 / 4 704 × 100 = 12.59%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed12
Km — ultra races902 km
Longest race100,0 km
10. RUN Winschoten 100 km — 14/9/1985
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road72,9%
Trail27,1%
Records
HISTORY
12 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 1985 | ||||
| 14.09 | 100km | 10. RUN Winschoten 100 km |
8:17:41 h | 35 |
| 1982 | ||||
| 07.11 | 61km | 5e Schipholloop |
4:08:19 h | 9 |
| 11.09 | 100km | 7. RUN Winschoten 100 km |
7:48:13 h | 14 |
| 1981 | ||||
| 01.11 | 61km | 4e Schipholloop |
4:37:34 h | 25 |
| 1980 | ||||
| 02.11 | 61km | 3e Schipholloop |
4:19:39 h | 10 |
| 13.09 | 100km | 5. RUN Winschoten 100 km |
7:27:22 h | 6 |
| 1979 | ||||
| 04.11 | 61km | 2e Schipholloop |
4:41:29 h | 17 |
| 08.09 | 100km | 4. RUN Winschoten 100 km |
8:09:44 h | 10 |
| 1978 | ||||
| 31.05 | 90km | 53rd Comrades Marathon - Down Run |
7:12:00 h | 208 |
| 25.03 | 56km | 9th Two Oceans Marathon |
4:03:19 h | 72 |
| 1977 | ||||
| 09.04 | 56km | 8th Two Oceans Marathon |
4:09:31 h | 98 |
| 1976 | ||||
| 17.04 | 56km | 7th Two Oceans Marathon |
4:19:56 h | 100 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 14/9/1985 | 10. RUN Winschoten 100 km | 100,00 | ×3 |
| ✓ 2 | 11/9/1982 | 7. RUN Winschoten 100 km | 100,00 | ×3 |
| ✓ 3 | 13/9/1980 | 5. RUN Winschoten 100 km | 100,00 | ×3 |
| ✓ 4 | 8/9/1979 | 4. RUN Winschoten 100 km | 100,00 | ×3 |
| ✓ 5 | 31/5/1978 | 53rd Comrades Marathon - Down Run | 90,00 | ×3 |
| ✓ 6 | 7/11/1982 | 5e Schipholloop | 61,00 | ×2 |
| ✓ 7 | 1/11/1981 | 4e Schipholloop | 61,00 | ×2 |
| ✓ 8 | 2/11/1980 | 3e Schipholloop | 61,00 | ×2 |
| ✓ 9 | 4/11/1979 | 2e Schipholloop | 61,00 | ×2 |
| ✓ 10 | 25/3/1978 | 9th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 11 | 9/4/1977 | 8th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 12 | 17/4/1976 | 7th Two Oceans Marathon | 56,00 | ×2 |