David Barker
External sources
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Born : 1975
Cat. M50 Ultrarunner since 2023
2
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
10
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 States47,5%
Rank quotient ?This runner's calculation uses 2 eligible race(s): Σ(rank − 1) = 67; Σ finishers = 141. 67 / 141 × 100 = 47.52%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed2
Km — ultra races103 km
Longest race53,1 km
3rd Squatchapple 33 Mile Race — 11/3/2023
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
2 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 08.03 | 50km | 5th Squatchapple 50 km Race |
7:24:14 h | 45 |
| 2023 | ||||
| 11.03 | 33mi | 3rd Squatchapple 33 Mile Race |
7:30:48 h | 24 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 11/3/2023 | 3rd Squatchapple 33 Mile Race | 53,11 | ×5 |
| ✓ 2 | 8/3/2025 | 5th Squatchapple 50 km Race | 50,00 | ×5 |