Herbert James
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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.
26
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
51,7%
Rank quotient ?This runner's calculation uses 11 eligible race(s): Σ(rank − 1) = 492; Σ finishers = 952. 492 / 952 × 100 = 51.68%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed11
Km — ultra races873 km
> 100 km2
> 24h3
Longest race145,5 km
12th FANS 24 Hour Runs — 23/6/2001
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road46,0%
Trail54,0%
HISTORY
11 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 23/6/2001 | 12th FANS 24 Hour Runs | 145,47 | ×5 |
| ✓ 2 | 29/6/2002 | 13th FANS 24 Hour Runs | 100,09 | ×3 |
| ✓ 3 | 4/6/2005 | 16th FANS 24 Hour Runs | 84,51 | ×3 |
| ✓ 4 | 24/7/2004 | 23rd Minnesota Voyageur Trail 50 Mile Ultra | 80,47 | ×3 |
| ✓ 5 | 24/4/2004 | 15th Zane Grey Highline Trail 50 Mile | 80,47 | ×3 |
| ✓ 6 | 27/7/2002 | 21st Minnesota Voyageur Trail 50 Mile Ultra | 80,47 | ×3 |
| ✓ 7 | 28/7/2001 | 20th Minnesota Voyageur Trail 50 Mile Ultra | 80,47 | ×3 |
| ✓ 8 | 10/4/2004 | 4th Brew to Brew 44.4 mile | 71,45 | ×2 |
| ✓ 9 | 21/5/2005 | 3rd Superior Spring 50 km Trail Race | 50,00 | ×1 |
| ✓ 10 | 22/5/2004 | 2nd Superior Spring 50 km Trail Race | 50,00 | ×1 |
| ✓ 11 | 27/12/2003 | 7th Huff 50K Trail Run | 50,00 | ×1 |