Masanori (山際将典) Yamagiwa
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Born : 1988
Cat. M35 Ultrarunner since 2011
17
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
33
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
Japan37,8%
Rank quotient ?This runner's calculation uses 17 eligible race(s): Σ(rank − 1) = 4 323; Σ finishers = 11 423. 4 323 / 11 423 × 100 = 37.84%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed17
Km — ultra races1 413 km
> 100 km1
> 160 km1
Longest race160,9 km
1st OSJ Yatsugatake Super Trail 100 miles race — 3/11/2012
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road66,9%
Trail33,1%
Wins & podiums (ultra)
🏆 Win1
🏆 Win M1
🏅 Top 31
🏅 Top 3 M1
Longest winning streak1
Current streak0
HISTORY
17 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 3/11/2012 | 1st OSJ Yatsugatake Super Trail 100 miles race | 160,93 | ×4 |
| ✓ 2 | 18/9/2016 | 16th Tango 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 3 | 20/9/2015 | 15th Tango 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 4 | 14/9/2014 | 14th Tango 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 5 | 15/9/2013 | 13th Tango 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 6 | 21/9/2012 | 12th Tango 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 7 | 20/5/2012 | 18th Yatsugatake Nobeyama 100 km | 100,00 | ×3 |
| ✓ 8 | 17/5/2015 | 21st Yatsugatake Nobeyama 71 km | 71,00 | ×2 |
| ✓ 9 | 19/5/2013 | 19th Yatsugatake Nobeyama 71 km | 71,00 | ×2 |
| ✓ 10 | 22/5/2011 | 3rd 70 km Ultra Maranic Osaka | 70,00 | ×2 |
| ✓ 11 | 19/12/2015 | 10th Jingu Gaien Ultramarathon 6 Hour | 68,88 | ×2 |
| ✓ 12 | 29/9/2013 | 16th Muraoka 66 km Ultra Marathon | 66,00 | ×2 |
| ✓ 13 | 13/7/2013 | 4th Nozawa Onsen 4100D Mountain Trail | 65,00 | ×1 |
| ✓ 14 | 11/4/2026 | 21st Toda Saiko 60 km | 60,00 | ×1 |
| ✓ 15 | 4/6/2017 | 5th Tokyo Shibamata 60 km | 60,00 | ×1 |
| ✓ 16 | 6/6/2015 | 3rd Tokyo Shibamata 60 km | 60,00 | ×1 |
| ✓ 17 | 18/9/2011 | 11th Tango 60 km Ultramarathon | 60,00 | ×1 |