David Coles
External sources
Loading FFA
Loading MV
FFA diagnostics
Run “Search / refresh FFA” to see each season, HTTP response, candidate and DUV comparison.
MarathonView diagnostics
Run “Refresh MV” to see login, session validation and parser status.
Cached locally. Empty refreshes never erase the last valid snapshot.
Born : 1959
Cat. M65 Ultrarunner since 2003
9
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
24
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
South Africa
United KingdomSouth Africa23,4%
Rank quotient ?This runner's calculation uses 9 eligible race(s): Σ(rank − 1) = 7 045; Σ finishers = 30 129. 7 045 / 30 129 × 100 = 23.38%. A win adds 0 to the numerator. Lower is better.
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Records
HISTORY
9 race(s) · 1 split(s) nested| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 14.06 | 86km | 99th Comrades Marathon - Up Run |
9:47:20 h | 5819 |
| 2022 | ||||
| 28.08 | 90km | 95th Comrades Marathon - Down Run |
8:26:59 h | 1167 |
| 06.03 | 40mi | 36th Barry 40 Mile Track Race |
5:06:40 h | 7 |
| 2021 | ||||
| 23.05 | 40mi | 35th Barry 40 Mile Track Race |
5:14:50 h | 7 |
| 2020 | ||||
| 01.03 | 40mi | 34th Barry 40 Mile Track Race |
5:18:47 h | 12 |
| 2014 | ||||
| 09.03 | 40mi | 28th Barry 40 Mile Track Race |
5:18:26 h | 7 |
| 2004 | ||||
| 26.04 | 100km | 100 km Cardiff |
9:25:55 h | 14 |
| 07.03 | 40mi | 18th Barry 40 Mile Track Race |
5:02:17 h | 7 |
| 2003 | ||||
| 06.07 | 100km | Edinburgh Self Transcendence 100km |
8:49:19 h | 14 |
| 06.07 | 50km | Edinburgh Self Transcendence 100km - 50km Split | 4:06:48 h | 17 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 26/4/2004 | 100 km Cardiff | 100,00 | ×4 |
| ✓ 2 | 6/7/2003 | Edinburgh Self Transcendence 100km | 100,00 | ×4 |
| ✓ 3 | 28/8/2022 | 95th Comrades Marathon - Down Run | 90,00 | ×3 |
| ✓ 4 | 14/6/2026 | 99th Comrades Marathon - Up Run | 86,00 | ×3 |
| ✓ 5 | 6/3/2022 | 36th Barry 40 Mile Track Race | 64,37 | ×2 |
| ✓ 6 | 23/5/2021 | 35th Barry 40 Mile Track Race | 64,37 | ×2 |
| ✓ 7 | 1/3/2020 | 34th Barry 40 Mile Track Race | 64,37 | ×2 |
| ✓ 8 | 9/3/2014 | 28th Barry 40 Mile Track Race | 64,37 | ×2 |
| ✓ 9 | 7/3/2004 | 18th Barry 40 Mile Track Race | 64,37 | ×2 |