Frans Be-Tjoen-Swan
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Born : 1943
Cat. M80 Ultrarunner since 1981
21
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
33
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
Netherlands83,1%
Rank quotient ?This runner's calculation uses 21 eligible race(s): Σ(rank − 1) = 1 426; Σ finishers = 1 716. 1 426 / 1 716 × 100 = 83.10%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed21
Km — ultra races1 630 km
Longest race100,0 km
15. RUN Winschoten 100 km — 8/9/1990
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road55,2%
Trail44,8%
Records
HISTORY
21 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 8/9/1990 | 15. RUN Winschoten 100 km | 100,00 | ×3 |
| ✓ 2 | 9/9/1989 | 14. RUN Winschoten 100 km | 100,00 | ×3 |
| ✓ 3 | 10/9/1988 | 13. RUN Winschoten 100 km | 100,00 | ×3 |
| ✓ 4 | 12/9/1987 | 12. RUN Winschoten 100 km | 100,00 | ×3 |
| ✓ 5 | 13/9/1986 | 11. RUN Winschoten 100 km | 100,00 | ×3 |
| ✓ 6 | 14/9/1985 | 10. RUN Winschoten 100 km | 100,00 | ×3 |
| ✓ 7 | 8/9/1984 | 9. RUN Winschoten 100 km | 100,00 | ×3 |
| ✓ 8 | 10/9/1983 | 8. RUN Winschoten 100 km | 100,00 | ×3 |
| ✓ 9 | 11/9/1982 | 7. RUN Winschoten 100 km | 100,00 | ×3 |
| ✓ 10 | 11/11/1990 | 13e Schipholloop | 61,00 | ×1 |
| ✓ 11 | 12/11/1989 | 12e Schipholloop | 61,00 | ×1 |
| ✓ 12 | 13/11/1988 | 11e Schipholloop | 61,00 | ×1 |
| ✓ 13 | 8/11/1987 | 10e Schipholloop | 61,00 | ×1 |
| ✓ 14 | 2/11/1986 | 9e Schipholloop | 61,00 | ×1 |
| ✓ 15 | 3/11/1985 | 8e Schipholloop | 61,00 | ×1 |
| ✓ 16 | 4/11/1984 | 7e Schipholloop | 61,00 | ×1 |
| ✓ 17 | 6/11/1983 | 6e Schipholloop | 61,00 | ×1 |
| ✓ 18 | 7/11/1982 | 5e Schipholloop | 61,00 | ×1 |
| ✓ 19 | 1/11/1981 | 4e Schipholloop | 61,00 | ×1 |
| ✓ 20 | 12/4/1993 | 2e De Zestig van Texel | 60,00 | ×1 |
| ✓ 21 | 1/4/1991 | 1e De Zestig van Texel | 60,00 | ×1 |