Kazuhiro (古川和浩) Furukawa
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Born : 1962
Cat. M60 Ultrarunner since 2012
16
DUV-index ?Largest integer N such that the runner has at least N credited races of at least N km.
33
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
Japan24,8%
Rank quotient ?This runner's calculation uses 16 eligible race(s): Σ(rank − 1) = 1 834; Σ finishers = 7 406. 1 834 / 7 406 × 100 = 24.76%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed16
Km — ultra races1 251 km
Longest race100,0 km
6th Hakone Kodo Ultra Walking — 29/6/2024
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road76,7%
Ult.Walk23,3%
Wins & podiums (ultra)
🏆 Win2
🏆 Win M2
🏅 Top 35
🏅 Top 3 M5
Longest winning streak1
Current streak0
Records
HISTORY
16 race(s)| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 29/6/2024 | 6th Hakone Kodo Ultra Walking | 100,00 | ×3 |
| ✓ 2 | 23/4/2022 | 4th Hakone Kodo Ultra Walking | 100,00 | ×3 |
| ✓ 3 | 26/2/2022 | 2nd Nihondaira and Suruganokuni Ultra Run | 93,00 | ×2 |
| ✓ 4 | 16/12/2023 | 1st Okinawa Churaumi Ultra Walking | 91,00 | ×2 |
| ✓ 5 | 17/9/2022 | 8th Nishi Seto Expressway Ultra Run | 80,00 | ×2 |
| ✓ 6 | 20/9/2020 | 6th Nishi Seto Expressway Ultra Run | 80,00 | ×2 |
| ✓ 7 | 14/9/2024 | 10th Nishi Seto Expressway Ultra Run | 75,00 | ×2 |
| ✓ 8 | 12/6/2016 | 5th Hida Takayama 72 km Ultramarathon | 72,00 | ×2 |
| ✓ 9 | 7/6/2015 | 4th Hida Takayama 72 km Ultramarathon | 72,00 | ×2 |
| ✓ 10 | 9/6/2013 | 2nd Hida Takayama 72 km Ultramarathon | 72,00 | ×2 |
| ✓ 11 | 21/4/2013 | 23rd Fuji 5 Lakes 72 km Challenge | 72,00 | ×2 |
| ✓ 12 | 12/6/2022 | 10th Hida Takayama 71 km Ultramarathon | 71,00 | ×2 |
| ✓ 13 | 9/6/2019 | 8th Hida Takayama 71 km Ultramarathon | 71,00 | ×2 |
| ✓ 14 | 10/6/2018 | 7th Hida Takayama 71 km Ultramarathon | 71,00 | ×2 |
| ✓ 15 | 11/6/2017 | 6th Hida Takayama 71 km Ultramarathon | 71,00 | ×2 |
| ✓ 16 | 21/9/2012 | 12th Tango 60 km Ultramarathon | 60,00 | ×1 |