Richard Cedrus Jackson
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 : 1977
Cat. M45 Ultrarunner since 2008
13
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
3
Countries visited ?
United Kingdom
IcelandSweden
United KingdomIcelandSweden58,8%
Rank quotient ?This runner's calculation uses 13 eligible race(s): Σ(rank − 1) = 2 679; Σ finishers = 4 560. 2 679 / 4 560 × 100 = 58.75%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed14
Km — ultra races815 km
Longest race100,0 km
Ultra Tour of Arran - Low Course — 14/4/2018
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Trail87,7%
Stage12,3%
HISTORY
13 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2022 | ||||
| 17.09 | 46km | Bergslagsleden Ultra 46km |
6:34:57 h | 44 |
| 2019 | ||||
| 17.08 | 90km | 6th Ultravasan90 |
10:54:47 h | 479 |
| 30.05 | 46km | Ottarsloppet Ultra |
4:54:03 h | 7 |
| 2018 | ||||
| 18.08 | 90km | 5th Ultravasan90 |
11:14:37 h | 522 |
| 28.07 | 50mi | Lakeland 50 Mile |
21:26:18 h | 724 |
| 14.07 | 55km | 22 Laugavegurinn 55km |
7:54:30 h | 316 |
| 06.05 | 50km | Lidingö Ultra 50 km |
5:53:48 h | 159 |
| 14.04 | 100km/2stages | Ultra Tour of Arran - Low Course |
15:30:19 h | 12 |
| 2017 | ||||
| 07.10 | 50km | 17th Sörmland Ultra Marathon |
5:35:01 h | 96 |
| 02.09 | 53km | Järvloppet |
8:48:12 h | 14 |
| 2012 | ||||
| 28.04 | 50km | Lidingö Ultra 50 km |
4:45:18 h | 94 |
| 2010 | ||||
| 09.10 | 50km | 10th Sörmland Ultra Marathon |
5:40:30 h | 102 |
| 2008 | ||||
| 12.07 | 55km | 12. Laugavegurinn 55 km, Landmannalaugar - Húsadalur |
7:00:15 h | 123 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 14/4/2018 | Ultra Tour of Arran - Low Course | 100,00 | ×4 |
| ✓ 2 | 17/8/2019 | 6th Ultravasan90 | 90,00 | ×3 |
| ✓ 3 | 18/8/2018 | 5th Ultravasan90 | 90,00 | ×3 |
| ✓ 4 | 28/7/2018 | Lakeland 50 Mile | 80,47 | ×3 |
| ✓ 5 | 14/7/2018 | 22 Laugavegurinn 55km | 55,00 | ×2 |
| ✓ 6 | 12/7/2008 | 12. Laugavegurinn 55 km, Landmannalaugar - Húsadalur | 55,00 | ×2 |
| ✓ 7 | 2/9/2017 | Järvloppet | 53,00 | ×2 |
| ✓ 8 | 6/5/2018 | Lidingö Ultra 50 km | 50,00 | ×2 |
| ✓ 9 | 7/10/2017 | 17th Sörmland Ultra Marathon | 50,00 | ×2 |
| ✓ 10 | 28/4/2012 | Lidingö Ultra 50 km | 50,00 | ×2 |
| ✓ 11 | 9/10/2010 | 10th Sörmland Ultra Marathon | 50,00 | ×2 |
| ✓ 12 | 17/9/2022 | Bergslagsleden Ultra 46km | 46,00 | ×1 |
| ✓ 13 | 30/5/2019 | Ottarsloppet Ultra | 46,00 | ×1 |