Keiho (斉藤恵保) Saito
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 : 1958
Cat. M65 Ultrarunner since 2010
17
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
37
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 ?Japan
Japan44,7%
Rank quotient ?This runner's calculation uses 17 eligible race(s): Σ(rank − 1) = 1 998; Σ finishers = 4 473. 1 998 / 4 473 × 100 = 44.67%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed17
Km — ultra races1 798 km
> 100 km7
> 160 km1
> 24h7
Longest race161,6 km
1st Nikko Sennin Concentric Journey Run — 15/6/2019
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road92,4%
Trail7,6%
HISTORY
17 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 15/6/2019 | 1st Nikko Sennin Concentric Journey Run | 161,60 | ×4 |
| ✓ 2 | 21/6/2014 | 13. Tokyo Challenge 24 hours | 143,32 | ×3 |
| ✓ 3 | 12/9/2015 | 14. Green Charity Marathon Tokyo - Hard Run 24H | 122,20 | ×3 |
| ✓ 4 | 14/9/2019 | 14. Shonan Int. Relay Marathon 24 Hour Run | 115,90 | ×3 |
| ✓ 5 | 3/3/2018 | 8th Oedo Night run 113k | 113,00 | ×3 |
| ✓ 6 | 2/6/2018 | 17. Green Charity Marathon Tokyo - Hard Run 24H | 112,50 | ×3 |
| ✓ 7 | 18/6/2016 | 15. Green Charity Marathon Tokyo - Hard Run 24H | 110,26 | ×2 |
| ✓ 8 | 19/10/2019 | 4th Iki 100 km Ultra Marathon | 100,00 | ×2 |
| ✓ 9 | 21/10/2017 | 2nd Iki 100 km Ultra Marathon | 100,00 | ×2 |
| ✓ 10 | 2/10/2016 | 1st Iki 100 km Ultra Marathon | 100,00 | ×2 |
| ✓ 11 | 1/6/2013 | 1st Tokyo Shibamata 100 km | 100,00 | ×2 |
| ✓ 12 | 22/5/2011 | 3rd 100 km Ultra Maranic Osaka | 100,00 | ×2 |
| ✓ 13 | 23/5/2010 | 2nd 100 km Ultra Maranic Osaka | 100,00 | ×2 |
| ✓ 14 | 9/9/2017 | 20. Hiratsuka 24 hour race | 98,61 | ×2 |
| ✓ 15 | 14/9/2013 | 16. Hiratsuka 24 hour race | 84,77 | ×2 |
| ✓ 16 | 16/12/2018 | Coast to Coast 70k Trail Run | 68,00 | ×1 |
| ✓ 17 | 17/12/2017 | Coast to Coast 70k Trail Run | 68,00 | ×1 |