Masakazu (谷川雅一) Tanigawa
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Born : 1982
Cat. M40 Ultrarunner since 2016
6
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
21
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
Japan60,0%
Rank quotient ?This runner's calculation uses 6 eligible race(s): Σ(rank − 1) = 1 475; Σ finishers = 2 460. 1 475 / 2 460 × 100 = 59.96%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed6
Km — ultra races519 km
> 100 km2
Longest race129,0 km
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road13,9%
Trail86,1%
Records
No record for a classic ultra format
HISTORY
6 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 22/9/2018 | 5th SkyView Ultra-Trail 120 - Yamada Noboru Memorial Cup | 129,00 | ×6 |
| ✓ 2 | 23/9/2017 | 4th SkyView Ultra-Trail 120 - Yamada Noboru Memorial Cup | 129,00 | ×6 |
| ✓ 3 | 12/6/2016 | 5th Hida Takayama 72 km Ultramarathon | 72,00 | ×3 |
| ✓ 4 | 30/10/2016 | 2nd OSJ Yamanaka Onsen Trail Run | 70,00 | ×3 |
| ✓ 5 | 16/7/2016 | 7th Nozawa Onsen 4100D Mountain Trail | 65,00 | ×3 |
| ✓ 6 | 21/10/2017 | 4th Shigakogen Extreme Trail | 54,00 | ×2 |