Shoei (中川正栄) Nakagawa
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8
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
24
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
73,2%
Rank quotient ?This runner's calculation uses 8 eligible race(s): Σ(rank − 1) = 2 915; Σ finishers = 3 983. 2 915 / 3 983 × 100 = 73.19%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed8
Km — ultra races647 km
> 100 km2
Longest race125,0 km
7th Fujisan Issyu Walking — 10/6/2023
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road40,2%
Trail23,5%
Ult.Walk36,3%
Records
HISTORY
8 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2024 | ||||
| 30.03 | 56km | 12:10:00 h | 88 | |
| 2023 | ||||
| 10.06 | 125km | 25:32:36 h | 79 | |
| 09.04 | 51.4km | 10:21:06 h | 280 | |
| 2022 | ||||
| 26.11 | 110km | 22:32:06 h | 41 | |
| 2014 | ||||
| 22.11 | 60km | 7:29:37 h | 1050 | |
| 2012 | ||||
| 04.11 | 45km | 9:51:16 h | 302 | |
| 2010 | ||||
| 19.09 | 100km | 13:33:12 h | 573 | |
| 2008 | ||||
| 14.09 | 100km | 13:51:53 h | 510 | |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 10/6/2023 | 7th Fujisan Issyu Walking | 125,00 | ×5 |
| ✓ 2 | 26/11/2022 | 1st Kyoto Ultra Walking 110km | 110,00 | ×4 |
| ✓ 3 | 19/9/2010 | 10th Tango 100 km Ultramarathon | 100,00 | ×4 |
| ✓ 4 | 14/9/2008 | 8th Tango 100 km Ultramarathon | 100,00 | ×4 |
| ✓ 5 | 22/11/2014 | 1st Kiso-Sansen 60 km Ultra-Marathon | 60,00 | ×2 |
| ✓ 6 | 30/3/2024 | 30th Mt. Rocco Cannonball Run - 56 km Night Speed | 56,00 | ×2 |
| ✓ 7 | 9/4/2023 | 1st AYABE Trailrun | 51,40 | ×2 |
| ✓ 8 | 4/11/2012 | 4th Shinshu-Togakushi Trail Run Race | 45,00 | ×1 |