Douglas Williams
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15
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
34
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 States
35,3%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 509; Σ finishers = 1 442. 509 / 1 442 × 100 = 35.30%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed15
Km — ultra races1 476 km
> 100 km6
> 160 km3
> 24h4
> 48h1
Longest race194,5 km
6th The Country Mile 48 Hour Race — 3/4/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M0
🏅 Top 30
🏅 Top 3 M1
Longest winning streak0
Current streak0
HISTORY
15 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 3/4/2026 | 6th The Country Mile 48 Hour Race | 194,47 | ×5 |
| ✓ 2 | 5/9/2025 | 17th Run Woodstock - 100 Mile Hallucination Run | 160,93 | ×4 |
| ✓ 3 | 9/9/2022 | 14th Run Woodstock - 100 Mile Hallucination Run | 160,93 | ×4 |
| ✓ 4 | 6/6/2025 | 5th Island Time 24 Hour Race | 135,18 | ×3 |
| ✓ 5 | 4/5/2024 | 4th Island Time 24 Hour Race | 128,75 | ×3 |
| ✓ 6 | 7/5/2022 | 2nd Island Time 24 Hour Race | 106,22 | ×3 |
| ✓ 7 | 7/9/2024 | 16th Run Woodstock - 100 km Hallucination Run | 100,00 | ×2 |
| ✓ 8 | 8/9/2023 | 15th Run Woodstock - 100 km Hallucination Run | 100,00 | ×2 |
| ✓ 9 | 10/5/2025 | 7th Traverse City Trail Running Festival 75 km Race | 75,00 | ×2 |
| ✓ 10 | 6/5/2023 | 3rd Island Time 12 Hour Race | 64,37 | ×1 |
| ✓ 11 | 3/1/2026 | 16th Croom Zoom 50 km Run | 50,00 | ×1 |
| ✓ 12 | 17/8/2024 | 16th Marquette Trail 50 km | 50,00 | ×1 |
| ✓ 13 | 20/8/2022 | 14th Marquette Trail 50 km | 50,00 | ×1 |
| ✓ 14 | 8/1/2022 | 12th Yankee Springs 50 km Winter Challenge | 50,00 | ×1 |
| ✓ 15 | 21/8/2021 | 13th Marquette Trail 50 km | 50,00 | ×1 |