Colin Fletcher
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.
4
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
16
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 ?
South Africa
15,7%
Rank quotient ?This runner's calculation uses 4 eligible race(s): Σ(rank − 1) = 3 128; Σ finishers = 19 955. 3 128 / 19 955 × 100 = 15.68%. 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)
Road66,1%
Trail33,9%
Records
HISTORY
4 race(s) · 1 split(s) nested| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2012 | ||||
| 03.06 | 89km road race | 8:55:32 h | 2489 | |
| 07.04 | 56km road race | 4:19:10 h | 397 | |
| 07.04 | 50km road race | 43rd Two Oceans Marathon - 50km Split (RSA) | 3:49:46 h | 424 |
| 2011 | ||||
| 16.04 | 50km | 3:56:32 h | 213 | |
| 2010 | ||||
| 12.11 | 100km | 26:50:55 h | 33 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 12/11/2010 | 4th SkyRun 100 km | 100,00 | ×6 |
| ✓ 2 | 3/6/2012 | 87th Comrades Marathon - Down Run (RSA) | 89,00 | ×5 |
| ✓ 3 | 7/4/2012 | 43rd Two Oceans Marathon (RSA) | 56,00 | ×3 |
| ✓ 4 | 16/4/2011 | 25th Loskop Ultra Marathon 50km | 50,00 | ×3 |