John (Jack) Brown
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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.
31
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 Kingdom
22,6%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 372; Σ finishers = 1 649. 372 / 1 649 × 100 = 22.56%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed16
Km — ultra races1 222 km
> 100 km3
> 24h1
Longest race153,0 km
25th West Highland Way Race — 20/6/2009
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road4,1%
Trail86,8%
Stage9,1%
Wins & podiums (ultra)
🏆 Win2
🏆 Win M3
🏅 Top 37
🏅 Top 3 M7
Longest winning streak1
Current streak0
HISTORY
15 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2014 | ||||
| 06.09 | 24h | 139.932 km | 29 | |
| 2013 | ||||
| 13.07 | 40mi | 6:47:26 h | 25 | |
| 16.03 | 33mi | 5:19:41 h | 121 | |
| 2012 | ||||
| 15.09 | 41mi | 7:24:27 h | 30 | |
| 23.06 | 111km/2stages | 16:45:29 h | 147 | |
| 2011 | ||||
| 21.08 | 40mi | 6:39:45 h | 13 | |
| 27.03 | 50km | 3:18:40 h | 1 🏆 | |
| 2010 | ||||
| 28.08 | 36mi | 4:20:25 h | 2 🥈 | |
| 07.08 | 43mi | 5:48:23 h | 2 🥈 | |
| 15.05 | 55mi | 7:54:24 h | 1 🏆 | |
| 03.04 | 33mi | 3:47:39 h | 2 🥈 | |
| 2009 | ||||
| 17.10 | 50mi | 7:10:50 h | 2 🥈 | |
| 20.06 | 153km | 18:26:15 h | 6 | |
| 15.03 | 56mi | 7:06:40 h | 2 🥈 | |
| 2008 | ||||
| 12.12 | 50mi | 8:06:05 h | 4 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 20/6/2009 | 25th West Highland Way Race | 153,00 | ×4 |
| ✓ 2 | 6/9/2014 | Glenmore 24 hour Trail Race | 139,93 | ×4 |
| ✓ 3 | 23/6/2012 | 1st The Wall Ultra Run 111 km stage race | 111,00 | ×3 |
| ✓ 4 | 15/3/2009 | 1st Glasgow-Edinburgh Double Marathon | 90,12 | ×2 |
| ✓ 5 | 15/5/2010 | 2nd Cateran Trail 55 Mile Ultra | 88,51 | ×2 |
| ✓ 6 | 17/10/2009 | 27th Rowbotham's Round Rotherham | 80,47 | ×2 |
| ✓ 7 | 12/12/2008 | 26th Rowbotham's Round Rotherham | 80,47 | ×2 |
| ✓ 8 | 7/8/2010 | Devil o' the Highlands 43 Mile Footrace | 69,20 | ×2 |
| ✓ 9 | 15/9/2012 | River Ayr Way Challenge | 65,98 | ×2 |
| ✓ 10 | 13/7/2013 | Clyde Stride – Clyde Walkway Race | 64,37 | ×2 |
| ✓ 11 | 21/8/2011 | Derbyshire Peaks 40 Miles | 64,37 | ×2 |
| ✓ 12 | 28/8/2010 | Speyside Way Race | 57,94 | ×1 |
| ✓ 13 | 16/3/2013 | D33 – Deeside Way Ultra | 53,11 | ×1 |
| ✓ 14 | 3/4/2010 | D33 – Deeside Way Ultra | 53,11 | ×1 |
| ✓ 15 | 27/3/2011 | 50 km Perth | 50,00 | ×1 |