William (Bill) Surridge
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Born : 1949
Cat. M75 Ultrarunner since 1978
4
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
16
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 ?United States
United States62,8%
Rank quotient ?This runner's calculation uses 4 eligible race(s): Σ(rank − 1) = 340; Σ finishers = 541. 340 / 541 × 100 = 62.85%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed4
Km — ultra races322 km
Longest race80,5 km
Broken Spoke 50 Mile — 25/10/1981
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road75,0%
Trail25,0%
Records
HISTORY
4 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 1981 | ||||
| 25.10 | 50mi | Broken Spoke 50 Mile |
8:03:33 h | 16 |
| 04.10 | 50mi | AMJA 50 Mile Ultramarathon |
9:19:46 h | 161 |
| 1979 | ||||
| 28.10 | 50mi | Schaefer 50-Mile |
8:42:14 h | 15 |
| 1978 | ||||
| 18.11 | 50mi | 16th JFK 50 Mile |
10:53:06 h | 152 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 25/10/1981 | Broken Spoke 50 Mile | 80,47 | ×5 |
| ✓ 2 | 4/10/1981 | AMJA 50 Mile Ultramarathon | 80,47 | ×5 |
| ✓ 3 | 28/10/1979 | Schaefer 50-Mile | 80,47 | ×5 |
| ✓ 4 | 18/11/1978 | 16th JFK 50 Mile | 80,47 | ×5 |