Fred Buining
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Born : 1956
Cat. M70 Ultrarunner since 1990
9
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
25
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
Netherlands17,0%
Rank quotient ?This runner's calculation uses 9 eligible race(s): Σ(rank − 1) = 106; Σ finishers = 625. 106 / 625 × 100 = 16.96%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed9
Km — ultra races743 km
> 100 km2
> 24h1
Longest race120,0 km
6e De 120 van Texel — 21/10/2001
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road75,6%
Trail24,4%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M0
🏅 Top 32
🏅 Top 3 M2
Longest winning streak0
Current streak0
Records
HISTORY
10 race(s) · 1 split(s) nested| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2004 | ||||
| 27.03 | 6h | Zes uur ultraloop D.T.S. |
75.274 km | 4 |
| 2001 | ||||
| 21.10 | 120km | 6e De 120 van Texel |
11:22:25 h | 5 |
| 07.10 | 6h | 6h Ultraloop Amersfoort |
73.732 km | 2 🥈 |
| 11.03 | 50km | 6de Zes uurs ultraloop Stein - 50km Split |
4:03:52 h | 35 |
| 11.03 | 6h | 6de Zes uurs ultraloop Stein |
73.388 km | 23 |
| 1999 | ||||
| 14.05 | 24h | 20e 24 uurs Apeldoorn |
116.997 km | 43 |
| 07.03 | 6h | 4de Zes uurs ultraloop Stein |
71.180 km | 22 |
| 07.03 | 50km | 4de Zes uurs ultraloop Stein - 50km Split | 4:03:57 h | 24 |
| 1998 | ||||
| 04.10 | 6h | 6h Ultraloop Amersfoort |
75.515 km | 4 |
| 1996 | ||||
| 06.10 | 6h | 6h Ultraloop Amersfoort |
75.901 km | 2 🥈 |
| 1990 | ||||
| 11.11 | 61km | 13e Schipholloop |
4:24:15 h | 10 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 21/10/2001 | 6e De 120 van Texel | 120,00 | ×4 |
| ✓ 2 | 14/5/1999 | 20e 24 uurs Apeldoorn | 117,00 | ×4 |
| ✓ 3 | 6/10/1996 | 6h Ultraloop Amersfoort | 75,90 | ×3 |
| ✓ 4 | 4/10/1998 | 6h Ultraloop Amersfoort | 75,52 | ×3 |
| ✓ 5 | 27/3/2004 | Zes uur ultraloop D.T.S. | 75,27 | ×3 |
| ✓ 6 | 7/10/2001 | 6h Ultraloop Amersfoort | 73,73 | ×2 |
| ✓ 7 | 11/3/2001 | 6de Zes uurs ultraloop Stein | 73,39 | ×2 |
| ✓ 8 | 7/3/1999 | 4de Zes uurs ultraloop Stein | 71,18 | ×2 |
| ✓ 9 | 11/11/1990 | 13e Schipholloop | 61,00 | ×2 |