Katherine O'Sullivan
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Born : 1978
Cat. W45 Ultrarunner since 2019
17
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
38
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 Kingdom42,7%
Rank quotient ?This runner's calculation uses 17 eligible race(s): Σ(rank − 1) = 1 202; Σ finishers = 2 812. 1 202 / 2 812 × 100 = 42.75%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed17
Km — ultra races1 771 km
> 100 km5
> 160 km4
> 200 km1
Longest race257,5 km
Summer Spine Challenger North — 16/6/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Wins & podiums (ultra)
🏆 Win0
🏆 Win F0
🏅 Top 30
🏅 Top 3 F1
Longest winning streak0
Current streak0
HISTORY
17 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 16.06 | 160mi | Summer Spine Challenger North |
2d 12:28:01 h | 17 |
| 26.04 | 42mi | 14th Devil o' the Highlands Footrace |
8:24:54 h | 125 |
| 2024 | ||||
| 15.06 | 108mi | Summer Spine Challenger South |
35:10:12 h | 17 |
| 27.04 | 53mi | 16th Highland Fling Race |
10:57:08 h | 146 |
| 2023 | ||||
| 14.10 | 100mi | 12th Autumn 100 Mile Race |
21:37:11 h | 50 |
| 17.06 | 153km | 37th West Highland Way Race |
25:51:39 h | 64 |
| 13.05 | 55mi | 13th Cateran Trail 55 Mile Ultra |
11:01:42 h | 25 |
| 11.03 | 33mi | D33 – Deeside Way Ultra |
5:15:37 h | 45 |
| 2021 | ||||
| 07.08 | 103mi | 11th North Downs Way 100 Mile Race |
27:58:15 h | 61 |
| 03.07 | 100km | Serpent Trail Race 100km |
15:17:03 h | 102 |
| 22.05 | 50mi | 4th Ox 50 Mile |
10:03:23 h | 7 |
| 2020 | ||||
| 07.03 | 45mi | Winter Green Man Ultra 45 |
10:50:32 h | 119 |
| 2019 | ||||
| 28.12 | 45mi | 4th Winter Cross Ultra 45mi |
8:37:13 h | 45 |
| 26.10 | 48mi | 12th GB Ultra Thames Trot |
10:28:12 h | 121 |
| 14.09 | 50km | Dartmoor Ultra Marathon |
7:53:16 h | 41 |
| 03.08 | 52.5km | Round Reading Ultra Marathon 50km |
5:47:11 h | 69 |
| 27.04 | 60km | Fox Ultra |
7:49:30 h | 165 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 16/6/2025 | Summer Spine Challenger North | 257,50 | ×6 |
| ✓ 2 | 15/6/2024 | Summer Spine Challenger South | 173,81 | ×4 |
| ✓ 3 | 7/8/2021 | 11th North Downs Way 100 Mile Race | 165,76 | ×4 |
| ✓ 4 | 14/10/2023 | 12th Autumn 100 Mile Race | 160,93 | ×4 |
| ✓ 5 | 17/6/2023 | 37th West Highland Way Race | 153,00 | ×4 |
| ✓ 6 | 3/7/2021 | Serpent Trail Race 100km | 100,00 | ×2 |
| ✓ 7 | 13/5/2023 | 13th Cateran Trail 55 Mile Ultra | 88,51 | ×2 |
| ✓ 8 | 27/4/2024 | 16th Highland Fling Race | 85,30 | ×2 |
| ✓ 9 | 22/5/2021 | 4th Ox 50 Mile | 80,47 | ×2 |
| ✓ 10 | 26/10/2019 | 12th GB Ultra Thames Trot | 77,25 | ×2 |
| ✓ 11 | 7/3/2020 | Winter Green Man Ultra 45 | 72,42 | ×1 |
| ✓ 12 | 28/12/2019 | 4th Winter Cross Ultra 45mi | 72,42 | ×1 |
| ✓ 13 | 26/4/2025 | 14th Devil o' the Highlands Footrace | 67,59 | ×1 |
| ✓ 14 | 27/4/2019 | Fox Ultra | 60,00 | ×1 |
| ✓ 15 | 11/3/2023 | D33 – Deeside Way Ultra | 53,11 | ×1 |
| ✓ 16 | 3/8/2019 | Round Reading Ultra Marathon 50km | 52,50 | ×1 |
| ✓ 17 | 14/9/2019 | Dartmoor Ultra Marathon | 50,00 | ×1 |