Norihiko (河田則彦) Kawada
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17
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
35
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
15,8%
Rank quotient ?This runner's calculation uses 17 eligible race(s): Σ(rank − 1) = 2 287; Σ finishers = 14 449. 2 287 / 14 449 × 100 = 15.83%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed17
Km — ultra races1 603 km
> 100 km4
> 160 km3
Longest race167,0 km
10th Ultra-Trail Mt. Fuji (UTMF) — 25/4/2025
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road31,2%
Trail68,8%
HISTORY
17 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 25/4/2025 | 10th Ultra-Trail Mt. Fuji (UTMF) | 167,00 | ×4 |
| ✓ 2 | 22/4/2022 | 7th Ultra-Trail Mt. Fuji (UTMF) | 167,00 | ×4 |
| ✓ 3 | 16/9/2023 | 15th Shinetsu Five Mountains Trail 100 mile | 162,60 | ×4 |
| ✓ 4 | 16/7/2022 | 14th OSJ Ontake 100km Ultra Trail | 106,50 | ×3 |
| ✓ 5 | 16/4/2023 | 33th Fuji 4 Lakes 100 km Challenge | 100,00 | ×2 |
| ✓ 6 | 3/6/2018 | 6th Tokyo Shibamata 100 km | 100,00 | ×2 |
| ✓ 7 | 4/6/2017 | 5th Tokyo Shibamata 100 km | 100,00 | ×2 |
| ✓ 8 | 20/9/2015 | 15th Tango 100 km Ultramarathon | 100,00 | ×2 |
| ✓ 9 | 8/6/2014 | 3rd Hida Takayama 100 km Ultramarathon | 100,00 | ×2 |
| ✓ 10 | 29/6/2019 | 9th Utsukushigahara 80 km Trail Run | 80,00 | ×2 |
| ✓ 11 | 30/6/2018 | 8th Utsukushigahara 80 km Trail Run | 80,00 | ×2 |
| ✓ 12 | 10/12/2023 | 10th Izu Trail Journey | 70,00 | ×2 |
| ✓ 13 | 22/4/2018 | 4th Okumikawa Power Trail | 70,00 | ×2 |
| ✓ 14 | 11/5/2024 | 10th Mt. Hiei Int. 50 km Trail Run | 50,00 | ×1 |
| ✓ 15 | 13/5/2023 | 9th Mt. Hiei Int. 50 km Trail Run | 50,00 | ×1 |
| ✓ 16 | 21/5/2022 | 8th Mt. Hiei Int. 50 km Trail Run | 50,00 | ×1 |
| ✓ 17 | 22/10/2017 | 3rd Gasando Trail running race | 50,00 | ×1 |