Masaru (山田勝) Yamada
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 : 1956
Cat. M70 Ultrarunner since 2009
18
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
30
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
Japan38,7%
Rank quotient ?This runner's calculation uses 18 eligible race(s): Σ(rank − 1) = 3 005; Σ finishers = 7 763. 3 005 / 7 763 × 100 = 38.71%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed18
Km — ultra races1 116 km
Longest race100,0 km
16. Okukumano 100 km Ultramarathon — 27/4/2014
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road74,4%
Trail25,6%
Records
HISTORY
18 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 27/4/2014 | 16. Okukumano 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 2 | 27/10/2019 | 10th OSJ Hyonosen Mountains Trail Race | 73,00 | ×2 |
| ✓ 3 | 20/10/2018 | 9th OSJ Hyonosen Mountains Trail Race | 73,00 | ×2 |
| ✓ 4 | 3/5/2012 | 20. Mukogawa Yurikamome Ultra Marathon | 70,00 | ×2 |
| ✓ 5 | 3/5/2009 | 17. Mukogawa Yurikamome Ultra Marathon | 70,00 | ×2 |
| ✓ 6 | 20/9/2015 | 15th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 7 | 14/9/2014 | 14th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 8 | 15/9/2013 | 13th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 9 | 21/9/2012 | 12th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 10 | 18/9/2011 | 11th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 11 | 19/9/2010 | 10th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 12 | 20/9/2009 | 9th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 13 | 25/5/2019 | 8th Tojinbo 52 km Ultramarathon | 52,00 | ×1 |
| ✓ 14 | 26/5/2018 | 7th Tojinbo 52 km Ultramarathon | 52,00 | ×1 |
| ✓ 15 | 28/5/2016 | 5th Tojinbo 52 km Ultramarathon | 52,00 | ×1 |
| ✓ 16 | 16/5/2015 | 4th Tojinbo 52 km Ultramarathon | 52,00 | ×1 |
| ✓ 17 | 10/5/2014 | 3rd Tojinbo 52 km Ultramarathon | 52,00 | ×1 |
| ✓ 18 | 13/9/2015 | 3rd 50 km Ultramarathon Hakusan-Shirakawago | 50,00 | ×1 |