Robert Crichton
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.
10
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
25
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
25,1%
Rank quotient ?This runner's calculation uses 10 eligible race(s): Σ(rank − 1) = 7 018; Σ finishers = 28 004. 7 018 / 28 004 × 100 = 25.06%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed10
Km — ultra races794 km
Longest race100,0 km
9th Ultra Trail Drakensberg (UTD 100) — 25/4/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road25,0%
Trail75,0%
HISTORY
10 race(s) · 2 split(s) nested| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2025 | ||||
| 25.04 | 100km | 19:35:00 h | 34 | |
| 2024 | ||||
| 16.11 | 65km | 12:00:47 h | 8 | |
| 2018 | ||||
| 17.11 | 100km | 25:59:13 h | 47 | |
| 2017 | ||||
| 18.11 | 100km | 27:31:17 h | 131 | |
| 23.09 | 50mi | 10:18:26 h | 18 | |
| 2016 | ||||
| 19.11 | 100km | 23:36:17 h | 66 | |
| 2015 | ||||
| 04.04 | 56km | 4:49:54 h | 841 | |
| 04.04 | 50km | 46th Two Oceans Marathon - 50km Split | 4:22:43 h | 990 |
| 2013 | ||||
| 02.06 | 87km road race | 10:41:50 h | 4786 | |
| 30.03 | 56km road race | 4:50:41 h | 993 | |
| 30.03 | 50km road race | 44th Two Oceans Marathon - 50km Split (RSA) | 4:17:01 h | 937 |
| 2012 | ||||
| 08.09 | 50km | 4:59:17 h | 104 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 25/4/2025 | 9th Ultra Trail Drakensberg (UTD 100) | 100,00 | ×4 |
| ✓ 2 | 17/11/2018 | 11th SkyRun 100 km | 100,00 | ×4 |
| ✓ 3 | 18/11/2017 | SkyRun 100 km | 100,00 | ×4 |
| ✓ 4 | 19/11/2016 | 10th SkyRun 100 km | 100,00 | ×4 |
| ✓ 5 | 2/6/2013 | 88th Comrades Marathon - Up Run (RSA) | 87,00 | ×3 |
| ✓ 6 | 23/9/2017 | 1st Karkloof 100 - 50 Mile Endurance Foot Race | 80,47 | ×3 |
| ✓ 7 | 16/11/2024 | 17th SkyRun Lite 65 km | 65,00 | ×2 |
| ✓ 8 | 4/4/2015 | 46th Two Oceans Marathon | 56,00 | ×2 |
| ✓ 9 | 30/3/2013 | 44th Two Oceans Marathon (RSA) | 56,00 | ×2 |
| ✓ 10 | 8/9/2012 | 20. Mont-Aux-Sources 50km Challenge | 50,00 | ×2 |