David Clark
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13
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
33
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
2
Countries visited ?
United Kingdom
Morocco
44,0%
Rank quotient ?This runner's calculation uses 13 eligible race(s): Σ(rank − 1) = 1 882; Σ finishers = 4 275. 1 882 / 4 275 × 100 = 44.02%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed20
Km — ultra races1 287 km
> 100 km4
> 160 km2
> 200 km1
Longest race249,0 km
30. Marathon des Sables — 5/4/2015
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail70,1%
Stage29,9%
Records
HISTORY
13 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2017 | ||||
| 10.06 | 100mi | 26:48:22 h | 159 | |
| 08.04 | 50mi | 10:21:54 h | 202 | |
| 04.03 | 45mi | 9:16:51 h | 59 | |
| 14.01 | 45mi | 9:04:43 h | 260 | |
| 2016 | ||||
| 18.09 | 55km | 12:36:20 h | 143 | |
| 06.08 | 42mi | 7:39:49 h | 51 | |
| 30.04 | 53mi | 10:45:58 h | 187 | |
| 2015 | ||||
| 05.04 | 249km/6stages | 39:40:22 h | 347 | |
| 17.01 | 45mi | 8:25:32 h | 190 | |
| 2014 | ||||
| 07.11 | 84mi/3stages | 16:44:03 h | 71 | |
| 26.10 | 30mi | 5:28:35 h | 101 | |
| 2013 | ||||
| 03.08 | 77km | 9:42:04 h | 46 | |
| 2012 | ||||
| 23.06 | 111km | 15:04:00 h | 79 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 5/4/2015 | 30. Marathon des Sables | 249,00 | ×7 |
| ✓ 2 | 10/6/2017 | 6th South Downs Way 100 Mile Race | 160,93 | ×4 |
| ✓ 3 | 7/11/2014 | 6th Druid Challenge Ridgeway Multistage Ultra | 135,18 | ×4 |
| ✓ 4 | 23/6/2012 | 1st The Wall Ultra Run 111 km nonstopp | 111,00 | ×3 |
| ✓ 5 | 30/4/2016 | 11th Highland Fling Race 53 Mile | 85,30 | ×2 |
| ✓ 6 | 8/4/2017 | 5th South Downs Way 50 Mile Race | 80,47 | ×2 |
| ✓ 7 | 3/8/2013 | Round the Rock Jersey 48 Miles | 77,00 | ×2 |
| ✓ 8 | 4/3/2017 | Green Man Ultra 45 Miles | 72,42 | ×2 |
| ✓ 9 | 14/1/2017 | GB Ultra Country to Capital | 72,42 | ×2 |
| ✓ 10 | 17/1/2015 | GB Ultra Country to Capital | 72,42 | ×2 |
| ✓ 11 | 6/8/2016 | Devil o' the Highlands 43 Mile Footrace | 67,59 | ×2 |
| ✓ 12 | 18/9/2016 | 2nd Glen Coe Skyline | 55,00 | ×1 |
| ✓ 13 | 26/10/2014 | 3rd Stort 30 | 48,28 | ×1 |