John Williams
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Born : 1976
Cat. M50 Ultrarunner since 2019
18
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
47
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
3
Countries visited ?Ireland
Italy
Switzerland
IrelandItalySwitzerland58,2%
Rank quotient ?This runner's calculation uses 18 eligible race(s): Σ(rank − 1) = 2 970; Σ finishers = 5 100. 2 970 / 5 100 × 100 = 58.24%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed18
Km — ultra races2 576 km
> 100 km9
> 160 km5
> 200 km3
Longest race450,0 km
7° TOR450 - Tor des Glaciers — 12/9/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Records
HISTORY
18 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 12/9/2025 | 7° TOR450 - Tor des Glaciers | 450,00 | ×9 |
| ✓ 2 | 8/9/2024 | 15° TOR330 - Tor des Géants | 330,00 | ×7 |
| ✓ 3 | 10/9/2023 | 14° TOR330 - Tor des Géants | 330,00 | ×7 |
| ✓ 4 | 4/9/2020 | The Kerry Way Ultra | 193,00 | ×4 |
| ✓ 5 | 17/5/2024 | Beara Way Ultra | 170,00 | ×3 |
| ✓ 6 | 23/8/2022 | 12ème Sur les Traces des Ducs de Savoie (TDS) | 145,00 | ×3 |
| ✓ 7 | 11/7/2025 | 16ème Trail Verbier Saint-Bernard by UTMB - X-Alpine | 140,00 | ×2 |
| ✓ 8 | 15/10/2021 | Wicklow Way Race 127 km solo | 127,00 | ×2 |
| ✓ 9 | 24/6/2022 | 15^ Lavaredo Ultra Trail by UTMB - 120K | 120,00 | ×2 |
| ✓ 10 | 25/3/2023 | Maurice Mullins Ultra 80km | 80,00 | ×1 |
| ✓ 11 | 15/2/2020 | Slí Gaeltacht Mhúscraí | 71,50 | ×1 |
| ✓ 12 | 8/2/2025 | Slí Chorcaí Ultra | 71,00 | ×1 |
| ✓ 13 | 20/4/2024 | Knockmealdown Mountain Ultra | 66,00 | ×1 |
| ✓ 14 | 30/4/2022 | Ballyhoura Trail Ultra Marathon | 60,00 | ×1 |
| ✓ 15 | 24/7/2021 | Ballyhoura Trail Ultra Marathon | 60,00 | ×1 |
| ✓ 16 | 7/9/2019 | 3rd The Kerry Way UltraLite | 57,50 | ×1 |
| ✓ 17 | 24/8/2021 | 11ème TDS Bourg Saint Maurice | 55,00 | ×1 |
| ✓ 18 | 18/9/2021 | Aherlow 50k | 50,00 | ×1 |