Aldert Groen
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Born : 1938
Cat. M85 Ultrarunner since 1979
4
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
18
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 ?Netherlands
Netherlands40,6%
Rank quotient ?This runner's calculation uses 4 eligible race(s): Σ(rank − 1) = 116; Σ finishers = 286. 116 / 286 × 100 = 40.56%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed4
Km — ultra races361 km
Longest race100,0 km
7. RUN Winschoten 100 km — 11/9/1982
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road83,1%
Trail16,9%
Records
HISTORY
4 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 1982 | ||||
| 11.09 | 100km | 7. RUN Winschoten 100 km |
9:14:31 h | 34 |
| 1980 | ||||
| 13.09 | 100km | 5. RUN Winschoten 100 km |
8:46:54 h | 17 |
| 1979 | ||||
| 04.11 | 61km | 2e Schipholloop |
5:14:48 h | 43 |
| 08.09 | 100km | 4. RUN Winschoten 100 km |
9:06:50 h | 26 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 11/9/1982 | 7. RUN Winschoten 100 km | 100,00 | ×5 |
| ✓ 2 | 13/9/1980 | 5. RUN Winschoten 100 km | 100,00 | ×5 |
| ✓ 3 | 8/9/1979 | 4. RUN Winschoten 100 km | 100,00 | ×5 |
| ✓ 4 | 4/11/1979 | 2e Schipholloop | 61,00 | ×3 |