Masanori (田中正徳) Tanaka
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Born : 1970
Cat. M55 Ultrarunner since 2010
17
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
Japan21,3%
Rank quotient ?This runner's calculation uses 17 eligible race(s): Σ(rank − 1) = 2 503; Σ finishers = 11 742. 2 503 / 11 742 × 100 = 21.32%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed17
Km — ultra races1 146 km
Longest race100,0 km
21st River Shimanto 100km — 18/10/2015
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road75,2%
Trail24,8%
Wins & podiums (ultra)
🏆 Win0
🏆 Win M0
🏅 Top 31
🏅 Top 3 M1
Longest winning streak0
Current streak0
Records
HISTORY
17 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 18/10/2015 | 21st River Shimanto 100km | 100,00 | ×3 |
| ✓ 2 | 20/10/2013 | 19th River Shimanto 100km | 100,00 | ×3 |
| ✓ 3 | 12/10/2014 | 22nd Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 4 | 20/5/2018 | 24th Yatsugatake Nobeyama 71 km | 71,00 | ×2 |
| ✓ 5 | 21/5/2017 | 23rd Yatsugatake Nobeyama 71 km | 71,00 | ×2 |
| ✓ 6 | 22/5/2016 | 22nd Yatsugatake Nobeyama 71 km | 71,00 | ×2 |
| ✓ 7 | 18/5/2014 | 20th Yatsugatake Nobeyama 71 km | 71,00 | ×2 |
| ✓ 8 | 17/9/2023 | 21th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 9 | 16/9/2018 | 18th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 10 | 18/9/2016 | 16th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 11 | 20/9/2015 | 15th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 12 | 14/9/2014 | 14th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 13 | 15/9/2013 | 13th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 14 | 21/9/2012 | 12th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 15 | 18/9/2011 | 11th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 16 | 19/9/2010 | 10th Tango 60 km Ultramarathon | 60,00 | ×2 |
| ✓ 17 | 15/6/2014 | 9. Okinoshima 50km Ultra Marathon | 50,00 | ×1 |