Masaki (田中真樹) Tanaka
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12
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
27
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
59,7%
Rank quotient ?This runner's calculation uses 12 eligible race(s): Σ(rank − 1) = 4 802; Σ finishers = 8 045. 4 802 / 8 045 × 100 = 59.69%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed12
Km — ultra races909 km
Longest race100,0 km
15th Tango 100 km Ultramarathon — 20/9/2015
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road87,0%
Trail13,0%
Records
HISTORY
12 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 20/9/2015 | 15th Tango 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 2 | 26/4/2015 | 7th 100 km Ultra Maranic Osaka | 100,00 | ×3 |
| ✓ 3 | 14/9/2014 | 14th Tango 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 4 | 15/9/2013 | 13th Tango 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 5 | 18/5/2014 | Saba Highway Ultramarathon | 77,00 | ×2 |
| ✓ 6 | 19/5/2013 | Saba Highway Ultramarathon | 76,00 | ×2 |
| ✓ 7 | 22/4/2018 | 10th 70 km Ultra Maranic Osaka | 70,00 | ×2 |
| ✓ 8 | 3/5/2016 | 24. Mukogawa Yurikamome Ultra Marathon | 70,00 | ×2 |
| ✓ 9 | 25/3/2018 | 18th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×2 |
| ✓ 10 | 26/3/2017 | 16th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×2 |
| ✓ 11 | 30/3/2014 | 10th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×2 |
| ✓ 12 | 3/11/2017 | 1st Ninja Trail Run | 48,00 | ×1 |