Johnny Spriggs
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19
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
69,0%
Rank quotient ?This runner's calculation uses 19 eligible race(s): Σ(rank − 1) = 1 384; Σ finishers = 2 006. 1 384 / 2 006 × 100 = 68.99%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed19
Km — ultra races1 152 km
> 100 km1
> 160 km1
Longest race160,9 km
9th Heartland 100 Mile Race — 11/10/2008
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail100,0%
HISTORY
19 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 11/10/2008 | 9th Heartland 100 Mile Race | 160,93 | ×6 |
| ✓ 2 | 3/2/2007 | 15th Rocky Raccoon 50 Mile Trail Run | 80,47 | ×3 |
| ✓ 3 | 4/2/2006 | 14th Rocky Raccoon 50 Mile Trail Run | 80,47 | ×3 |
| ✓ 4 | 8/10/2005 | 6th Heartland 50 Mile Race | 80,47 | ×3 |
| ✓ 5 | 26/7/2010 | 4th El Scorcho 50k | 50,00 | ×1 |
| ✓ 6 | 3/4/2010 | 12th Taturs Lake McMurtry 50 km Trail Race | 50,00 | ×1 |
| ✓ 7 | 25/7/2009 | 3rd El Scorcho 50k | 50,00 | ×1 |
| ✓ 8 | 6/12/2008 | 19th Sunmart Texas Trails 50 km | 50,00 | ×1 |
| ✓ 9 | 8/11/2008 | 13th Rockledge Rumble Trail Run | 50,00 | ×1 |
| ✓ 10 | 26/7/2008 | 2nd El Scorcho 50k | 50,00 | ×1 |
| ✓ 11 | 12/4/2008 | 10th Lake McMurtry 50 km Trail Race | 50,00 | ×1 |
| ✓ 12 | 9/2/2008 | 4th Run Toto Run Psycho Wyco 50K | 50,00 | ×1 |
| ✓ 13 | 8/12/2007 | 18th Sunmart Texas Trails 50 km | 50,00 | ×1 |
| ✓ 14 | 28/7/2007 | 1st El Scorcho 50k | 50,00 | ×1 |
| ✓ 15 | 21/4/2007 | 17th Ouachita Trail 50 km | 50,00 | ×1 |
| ✓ 16 | 14/4/2007 | 9th Lake McMurtry 50 km Trail Race | 50,00 | ×1 |
| ✓ 17 | 17/3/2007 | 5th Prickly Pear 50 km Trail Run | 50,00 | ×1 |
| ✓ 18 | 4/3/2007 | A-OK Trail Run | 50,00 | ×1 |
| ✓ 19 | 16/4/2006 | 8th Lake McMurtry 50 km Trail Race | 50,00 | ×1 |