Jim O'Brien
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Born : 1968
Cat. M55 Ultrarunner since 2010
13
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
32
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
United Kingdom49,2%
Rank quotient ?This runner's calculation uses 13 eligible race(s): Σ(rank − 1) = 1 723; Σ finishers = 3 504. 1 723 / 3 504 × 100 = 49.17%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed13
Km — ultra races1 189 km
> 100 km2
> 160 km2
> 24h1
Longest race173,8 km
Summer Spine Challenger South — 15/6/2024
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
HISTORY
13 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2024 | ||||
| 15.06 | 108mi | Summer Spine Challenger South |
2d 01:03:57 h | 58 |
| 2022 | ||||
| 21.05 | 50mi | 11th North Downs Way 50 Mile Race |
12:39:35 h | 216 |
| 09.04 | 50mi | 10th South Downs Way 50 Mile Race |
11:28:25 h | 287 |
| 2019 | ||||
| 24.08 | 45mi | Summer Green Man Ultra 45 Miles |
10:51:00 h | 50 |
| 19.05 | 36mi | Guernsey Ultra GU36 |
7:36:46 h | 52 |
| 02.03 | 45mi | Winter Green Man Ultra 45 Miles |
9:38:07 h | 99 |
| 2018 | ||||
| 20.05 | 36mi | Guernsey Ultra GU36 |
7:47:42 h | 38 |
| 2017 | ||||
| 04.03 | 45mi | Green Man Ultra 45 Miles |
10:39:50 h | 119 |
| 2016 | ||||
| 16.07 | 100km | 4th Race to the Stones 100 km Ultramarathon |
14:47:16 h | 271 |
| 2015 | ||||
| 26.09 | 102mi | Cotswold Way Century |
29:07:00 h | 40 |
| 11.07 | 100km | 3rd Race to the Stones 100 km Ultramarathon |
15:44:29 h | 356 |
| 07.03 | 45mi | Green Man Ultra 45 Miles |
10:11:06 h | 121 |
| 2010 | ||||
| 15.05 | 24h | The 24 Hour Challenge Kent |
84.329 km | 29 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 15/6/2024 | Summer Spine Challenger South | 173,81 | ×5 |
| ✓ 2 | 26/9/2015 | Cotswold Way Century | 164,15 | ×5 |
| ✓ 3 | 16/7/2016 | 4th Race to the Stones 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 4 | 11/7/2015 | 3rd Race to the Stones 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 5 | 15/5/2010 | The 24 Hour Challenge Kent | 84,33 | ×2 |
| ✓ 6 | 21/5/2022 | 11th North Downs Way 50 Mile Race | 80,47 | ×2 |
| ✓ 7 | 9/4/2022 | 10th South Downs Way 50 Mile Race | 80,47 | ×2 |
| ✓ 8 | 24/8/2019 | Summer Green Man Ultra 45 Miles | 72,42 | ×2 |
| ✓ 9 | 2/3/2019 | Winter Green Man Ultra 45 Miles | 72,42 | ×2 |
| ✓ 10 | 4/3/2017 | Green Man Ultra 45 Miles | 72,42 | ×2 |
| ✓ 11 | 7/3/2015 | Green Man Ultra 45 Miles | 72,42 | ×2 |
| ✓ 12 | 19/5/2019 | Guernsey Ultra GU36 | 57,94 | ×1 |
| ✓ 13 | 20/5/2018 | Guernsey Ultra GU36 | 57,94 | ×1 |