James de Villiers
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Born : 1984
Cat. M40 Ultrarunner since 2022
10
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
31
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 ?
United KingdomNew Zealand
United KingdomNew Zealand52,2%
Rank quotient ?This runner's calculation uses 10 eligible race(s): Σ(rank − 1) = 1 100; Σ finishers = 2 109. 1 100 / 2 109 × 100 = 52.16%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed10
Km — ultra races1 064 km
> 100 km4
> 160 km2
> 24h1
Longest race165,0 km
6th Tarawera 100 Mile Endurance Run — 16/2/2024
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M1
Longest winning streak0
Current streak0
HISTORY
10 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 06.12 | 55mi | Winter on the Downs 55 Mile |
14:08:44 h | 89 |
| 27.09 | 50km | Dark Downs 50 km |
7:01:52 h | 78 |
| 15.02 | 163km | 7th Tarawera 100 Mile Endurance Run |
28:46:56 h | 169 |
| 2024 | ||||
| 23.11 | 12h | Rage Against Riverhead - 12h |
70.500 km | 17 |
| 12.10 | 100km | 8th Taupo Ultramarathon 100km |
13:54:17 h | 84 |
| 16.02 | 165km | 6th Tarawera 100 Mile Endurance Run |
27:48:05 h | 111 |
| 2023 | ||||
| 25.11 | 24h | Rage Against Riverhead - 24h |
124.200 km | 2 🥈 |
| 14.10 | 100km | 7th Taupo Ultramarathon 100km |
13:30:52 h | 64 |
| 11.02 | 103km | 14th Tarawera 100 km Ultramarathon |
16:14:55 h | 365 |
| 2022 | ||||
| 15.10 | 100km | 6th Taupo Ultramarathon 100km |
16:24:58 h | 131 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 16/2/2024 | 6th Tarawera 100 Mile Endurance Run | 165,00 | ×5 |
| ✓ 2 | 15/2/2025 | 7th Tarawera 100 Mile Endurance Run | 163,00 | ×5 |
| ✓ 3 | 25/11/2023 | Rage Against Riverhead - 24h | 124,20 | ×4 |
| ✓ 4 | 11/2/2023 | 14th Tarawera 100 km Ultramarathon | 103,00 | ×3 |
| ✓ 5 | 12/10/2024 | 8th Taupo Ultramarathon 100km | 100,00 | ×3 |
| ✓ 6 | 14/10/2023 | 7th Taupo Ultramarathon 100km | 100,00 | ×3 |
| ✓ 7 | 15/10/2022 | 6th Taupo Ultramarathon 100km | 100,00 | ×3 |
| ✓ 8 | 6/12/2025 | Winter on the Downs 55 Mile | 88,51 | ×2 |
| ✓ 9 | 23/11/2024 | Rage Against Riverhead - 12h | 70,50 | ×2 |
| ✓ 10 | 27/9/2025 | Dark Downs 50 km | 50,00 | ×1 |