Sara Williams
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8
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
18
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
28,4%
Rank quotient ?This runner's calculation uses 8 eligible race(s): Σ(rank − 1) = 221; Σ finishers = 778. 221 / 778 × 100 = 28.41%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed8
Km — ultra races430 km
Longest race80,5 km
6th Dances with Dirt - Hell 50M Ultra — 6/9/2008
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
Wins & podiums (ultra)
🏆 Win0
🏆 Win F1
🏅 Top 30
🏅 Top 3 F3
Longest winning streak0
Current streak0
Records
HISTORY
8 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 11.07 | 50km | 7:08:41 h | 47 | |
| 2019 | ||||
| 28.04 | 50km | 5:11:31 h | 18 | |
| 2014 | ||||
| 27.04 | 50km | 6:11:41 h | 65 | |
| 04.01 | 50km | 6:23:24 h | 23 | |
| 2010 | ||||
| 11.09 | 50km | 5:19:58 h | 23 | |
| 10.07 | 50km | 6:03:12 h | 29 | |
| 2009 | ||||
| 11.07 | 50km | 5:45:15 h | 11 | |
| 2008 | ||||
| 06.09 | 50mi | 10:27:46 h | 13 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 6/9/2008 | 6th Dances with Dirt - Hell 50M Ultra | 80,47 | ×4 |
| ✓ 2 | 11/7/2026 | 14th Waugoshance Trail 50K | 50,00 | ×2 |
| ✓ 3 | 28/4/2019 | 8th The Trail Marathon 50K | 50,00 | ×2 |
| ✓ 4 | 27/4/2014 | 3rd The Trail Marathon 50K | 50,00 | ×2 |
| ✓ 5 | 4/1/2014 | 4th Yankee Springs 50 km Winter Challenge | 50,00 | ×2 |
| ✓ 6 | 11/9/2010 | 8th Dances with Dirt - Hell 50K Ultra | 50,00 | ×2 |
| ✓ 7 | 10/7/2010 | 7th Dances with Dirt - Devil's Lake 50K Ultra | 50,00 | ×2 |
| ✓ 8 | 11/7/2009 | 6th Dances with Dirt - Devil's Lake 50K Ultra | 50,00 | ×2 |