Masahiro (巽正弘) Tatsumi
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11
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
28
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
64,5%
Rank quotient ?This runner's calculation uses 11 eligible race(s): Σ(rank − 1) = 2 246; Σ finishers = 3 481. 2 246 / 3 481 × 100 = 64.52%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed11
Km — ultra races909 km
> 100 km1
Longest race112,0 km
12th Mt. Rocco Cannonball Run - 112 km Power — 28/3/2015
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road83,2%
Trail16,8%
Records
HISTORY
11 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 28/3/2015 | 12th Mt. Rocco Cannonball Run - 112 km Power | 112,00 | ×4 |
| ✓ 2 | 9/1/2016 | 1st Yakushima Ultramarathon | 100,00 | ×3 |
| ✓ 3 | 19/7/2014 | 7th OSJ Ontake 100km Ultra Trail | 100,00 | ×3 |
| ✓ 4 | 27/4/2014 | 6th 100 km Ultra Maranic Osaka | 100,00 | ×3 |
| ✓ 5 | 20/5/2012 | 4th 100 km Ultra Maranic Osaka | 100,00 | ×3 |
| ✓ 6 | 22/5/2011 | 3rd 100 km Ultra Maranic Osaka | 100,00 | ×3 |
| ✓ 7 | 19/5/2013 | Saba Highway Ultramarathon | 76,00 | ×2 |
| ✓ 8 | 30/3/2014 | 10th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×2 |
| ✓ 9 | 27/10/2013 | 9th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×2 |
| ✓ 10 | 24/3/2013 | 8th Mt. Rocco Cannonball Run - 56 km Speed | 56,00 | ×2 |
| ✓ 11 | 15/9/2013 | 3rd Hakuba Int. Trail Run | 53,00 | ×1 |