Stephen Root
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Born : 1968
Cat. M55 Ultrarunner since 2021
9
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
33
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
2
Countries visited ?
FranceUnited Kingdom
FranceUnited Kingdom63,2%
Rank quotient ?This runner's calculation uses 9 eligible race(s): Σ(rank − 1) = 1 473; Σ finishers = 2 331. 1 473 / 2 331 × 100 = 63.19%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed9
Km — ultra races1 213 km
> 100 km2
> 160 km2
> 200 km2
Longest race431,3 km
Summer Spine Race — 14/6/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
9 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 14.06 | 268mi | Summer Spine Race |
5d 12:30:20 h | 51 |
| 2025 | ||||
| 27.09 | 50km | Dark Downs 50 km |
7:19:38 h | 92 |
| 14.06 | 50km | 1st South Downs Way 50 km Race |
6:27:12 h | 165 |
| 2024 | ||||
| 15.06 | 79km | Grand Trail du Saint-Jacques by UTMB |
14:33:04 h | 743 |
| 06.04 | 300km | 5th Northern Traverse 300km |
3d 17:32:40 h | 53 |
| 2023 | ||||
| 01.04 | 92km | 3rd Lakes Traverse 100km |
17:31:53 h | 52 |
| 2022 | ||||
| 08.10 | 50mi | Lakes in a day Ultra |
16:35:12 h | 229 |
| 2021 | ||||
| 05.12 | 50km | 4th Hurtwood 50k Endurance Trail Run |
5:56:57 h | 83 |
| 04.09 | 50mi | Peak District Ultras - Limestone 50 |
11:12:11 h | 14 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 14/6/2026 | Summer Spine Race | 431,30 | ×13 |
| ✓ 2 | 6/4/2024 | 5th Northern Traverse 300km | 300,00 | ×9 |
| ✓ 3 | 1/4/2023 | 3rd Lakes Traverse 100km | 92,00 | ×2 |
| ✓ 4 | 8/10/2022 | Lakes in a day Ultra | 80,47 | ×2 |
| ✓ 5 | 4/9/2021 | Peak District Ultras - Limestone 50 | 80,47 | ×2 |
| ✓ 6 | 15/6/2024 | Grand Trail du Saint-Jacques by UTMB | 79,00 | ×2 |
| ✓ 7 | 27/9/2025 | Dark Downs 50 km | 50,00 | ×1 |
| ✓ 8 | 14/6/2025 | 1st South Downs Way 50 km Race | 50,00 | ×1 |
| ✓ 9 | 5/12/2021 | 4th Hurtwood 50k Endurance Trail Run | 50,00 | ×1 |