Masatoshi (黒澤正俊) Kurosawa
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Born : 1973
Cat. M50 Ultrarunner since 2014
16
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
Japan46,5%
Rank quotient ?This runner's calculation uses 16 eligible race(s): Σ(rank − 1) = 4 090; Σ finishers = 8 804. 4 090 / 8 804 × 100 = 46.46%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed16
Km — ultra races1 201 km
> 100 km3
Longest race118,0 km
26th Fuji 5 Lakes 118 km Challenge — 24/4/2016
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road29,0%
Trail71,0%
HISTORY
16 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 24/4/2016 | 26th Fuji 5 Lakes 118 km Challenge | 118,00 | ×3 |
| ✓ 2 | 19/11/2016 | 2nd FunTrails100K Round | 105,00 | ×3 |
| ✓ 3 | 21/11/2015 | 1st FunTrails100K Round | 104,00 | ×3 |
| ✓ 4 | 16/7/2016 | 9th OSJ Ontake 100km Ultra Trail | 100,00 | ×3 |
| ✓ 5 | 5/3/2016 | 6th Little Edo 91km | 91,00 | ×3 |
| ✓ 6 | 15/6/2014 | 1. Spatrail - Shima to Kusatsu | 81,40 | ×2 |
| ✓ 7 | 4/7/2015 | 5th Utsukushigahara 80 km Trail Run | 80,00 | ×2 |
| ✓ 8 | 22/6/2015 | 22. Ultramarathon Okumusashi | 77,00 | ×2 |
| ✓ 9 | 31/10/2015 | 23rd Hasetsune Cup - Japan Mountain Endurance Race | 71,50 | ×2 |
| ✓ 10 | 20/9/2014 | 1st SkyView Ultra-Trail 60 - Yamada Noboru Memorial Cup | 66,00 | ×2 |
| ✓ 11 | 2/7/2016 | 22nd 8-Hour Endurance Race Tokorozawa | 61,67 | ×2 |
| ✓ 12 | 8/11/2015 | 7th Kanna Mountain Run | 50,00 | ×1 |
| ✓ 13 | 8/9/2018 | 6th Trainic world Soto-Chichibu Trail Run 50km | 49,80 | ×1 |
| ✓ 14 | 8/7/2018 | 7th Trainic world Ogose-Tokigawa Trail Run 50km | 49,60 | ×1 |
| ✓ 15 | 6/9/2015 | 4th Trainic world Ogose-Tokigawa Trail Run 50km | 49,60 | ×1 |
| ✓ 16 | 29/4/2018 | 11th Ishioka Trail Run | 46,00 | ×1 |