James Brown
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11
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
34
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 Kingdom
67,3%
Rank quotient ?This runner's calculation uses 11 eligible race(s): Σ(rank − 1) = 1 654; Σ finishers = 2 459. 1 654 / 2 459 × 100 = 67.26%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed11
Km — ultra races1 312 km
> 100 km3
> 160 km3
> 200 km1
Longest race346,0 km
Ultra Great Britain 215 Miles — 17/8/2019
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
11 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 18.04 | 50mi | 12:11:04 h | 465 | |
| 2024 | ||||
| 29.03 | 50mi | 12:21:10 h | 368 | |
| 2023 | ||||
| 06.05 | 50mi | 12:33:40 h | 132 | |
| 2022 | ||||
| 07.05 | 50mi | 12:26:35 h | 126 | |
| 15.04 | 50mi | 11:39:26 h | 235 | |
| 2021 | ||||
| 18.09 | 100mi | 47:03:01 h | 12 | |
| 03.07 | 50mi | 13:08:14 h | 108 | |
| 12.06 | 50mi | 13:50:35 h | 121 | |
| 2019 | ||||
| 17.08 | 215mi | 3d 17:08:20 h | 14 | |
| 13.07 | 100mi | 40:15:03 h | 25 | |
| 19.04 | 50mi | 9:25:22 h | 59 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 17/8/2019 | Ultra Great Britain 215 Miles | 346,01 | ×10 |
| ✓ 2 | 18/9/2021 | 4th Mount Snowdon Ultra 100 | 160,93 | ×4 |
| ✓ 3 | 13/7/2019 | 1st Beacons Way Ultra 100mi | 160,93 | ×4 |
| ✓ 4 | 18/4/2025 | Manchester to Liverpool Ultra 50 | 80,47 | ×2 |
| ✓ 5 | 29/3/2024 | Manchester to Liverpool Ultra 50 | 80,47 | ×2 |
| ✓ 6 | 6/5/2023 | Pennine Barrier Ultra 50 | 80,47 | ×2 |
| ✓ 7 | 7/5/2022 | Pennine Barrier Ultra 50 | 80,47 | ×2 |
| ✓ 8 | 15/4/2022 | Manchester to Liverpool Ultra | 80,47 | ×2 |
| ✓ 9 | 3/7/2021 | Chester Ultra 50 Miles | 80,47 | ×2 |
| ✓ 10 | 12/6/2021 | Pennine Barrier Ultra 50 | 80,47 | ×2 |
| ✓ 11 | 19/4/2019 | Manchester to Liverpool Ultra | 80,47 | ×2 |