Donald Riffle
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11
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
23
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
67,6%
Rank quotient ?This runner's calculation uses 11 eligible race(s): Σ(rank − 1) = 380; Σ finishers = 562. 380 / 562 × 100 = 67.62%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed11
Km — ultra races589 km
Longest race80,5 km
5th Dawg Gone Long Run 50 Miler — 29/6/2013
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
HISTORY
11 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2021 | ||||
| 21.08 | 31mi | 9:31:57 h | 67 | |
| 16.07 | 12h | 56.825 km | 16 | |
| 2014 | ||||
| 21.12 | 50km | 7:08:00 h | 43 | |
| 27.09 | 50km | 7:34:44 h | 33 | |
| 26.04 | 32mi | 7:40:00 h | 33 | |
| 2013 | ||||
| 07.09 | 50km | 7:48:07 h | 23 | |
| 29.06 | 50mi | 12:58:05 h | 31 | |
| 01.06 | 50km | 6:01:00 h | 32 | |
| 27.04 | 50km | 6:55:00 h | 30 | |
| 2012 | ||||
| 22.09 | 50km | 6:51:11 h | 43 | |
| 28.04 | 50km | 6:17:19 h | 40 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 29/6/2013 | 5th Dawg Gone Long Run 50 Miler | 80,47 | ×3 |
| ✓ 2 | 16/7/2021 | 6th CandleLight 12 Hour Ultra Marathon | 56,83 | ×2 |
| ✓ 3 | 26/4/2014 | 8th Tie Dye 32 Miler | 51,50 | ×2 |
| ✓ 4 | 21/12/2014 | 2nd First Day of Winter 50K | 50,00 | ×2 |
| ✓ 5 | 27/9/2014 | 20th Germantown 50k | 50,00 | ×2 |
| ✓ 6 | 7/9/2013 | 4th Norris Dam Hard Trail Race 50K | 50,00 | ×2 |
| ✓ 7 | 1/6/2013 | 9th Another Dam 50K Run | 50,00 | ×2 |
| ✓ 8 | 27/4/2013 | 7th Tie Dye 50k | 50,00 | ×2 |
| ✓ 9 | 22/9/2012 | 18th Germantown 50k | 50,00 | ×2 |
| ✓ 10 | 28/4/2012 | 6th Tie Dye 50k | 50,00 | ×2 |
| ✓ 11 | 21/8/2021 | 15th Tie Dye 50k | 49,89 | ×2 |