Kazuhisa (永堀和久) Nagahori
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Ultrarunner since 2017
10
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
Japan17,8%
Rank quotient ?This runner's calculation uses 10 eligible race(s): Σ(rank − 1) = 521; Σ finishers = 2 929. 521 / 2 929 × 100 = 17.79%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed11
Km — ultra races1 006 km
> 100 km6
> 24h2
Longest race140,0 km
IAU 24h Asia and Oceania Championships Open — 23/5/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road87,1%
Stage12,9%
Records
HISTORY
10 race(s) · 2 stage(s) nested · 1 split(s) nested| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 23.05 | 24h | IAU 24h Asia and Oceania Championships Open |
140.000 km | 72 |
| 23.05 | 12h | IAU 24h Asia and Oceania Championships Open - 12h Split | 98.750 km | 47 |
| 14.03 | 115km | 16th Oedo Night run 115k |
15:24:33 h | 19 |
| 2025 | ||||
| 01–02.11 | 130km/2stages | 3rd Mito Kaido Journey run |
17:05:17 h | 12 |
| 01.11 | 62.2km | 3rd Mito Kaido Journey run - Stage 1 | 8:56:29 h | 32 |
| 02.11 | 68.1km | 3rd Mito Kaido Journey run - Stage 2 | 8:08:48 h | 9 |
| 2024 | ||||
| 16.11 | 130km | 2nd Mito Kaido Journey run |
24:19:15 h | 95 |
| 2023 | ||||
| 16.04 | 62km | 33th Fuji 3 Lakes 62 km Challenge |
6:32:03 h | 64 |
| 2019 | ||||
| 23.02 | 91km | 9th Little Edo 91km |
9:30:29 h | 6 |
| 2018 | ||||
| 04.08 | 24h | 18th 24-hour relay & solo marathon Kobe |
103.700 km | 84 |
| 17.06 | 62km | 2nd Nikko 62km Ultramarathon |
5:35:30 h | 18 |
| 02.06 | 12h | 17. Green Charity Marathon Tokyo - Night Run 12H |
101.250 km | 5 |
| 2017 | ||||
| 23.04 | 71km | 27th Fuji 5 Lakes 71 km Challenge |
7:53:58 h | 156 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 23/5/2026 | IAU 24h Asia and Oceania Championships Open | 140,00 | ×4 |
| ✓ 2 | 1/11/2025 | 3rd Mito Kaido Journey run | 130,00 | ×4 |
| ✓ 3 | 16/11/2024 | 2nd Mito Kaido Journey run | 130,00 | ×4 |
| ✓ 4 | 14/3/2026 | 16th Oedo Night run 115k | 115,00 | ×3 |
| ✓ 5 | 4/8/2018 | 18th 24-hour relay & solo marathon Kobe | 103,70 | ×3 |
| ✓ 6 | 2/6/2018 | 17. Green Charity Marathon Tokyo - Night Run 12H | 101,25 | ×3 |
| ✓ 7 | 23/2/2019 | 9th Little Edo 91km | 91,00 | ×3 |
| ✓ 8 | 23/4/2017 | 27th Fuji 5 Lakes 71 km Challenge | 71,00 | ×2 |
| ✓ 9 | 16/4/2023 | 33th Fuji 3 Lakes 62 km Challenge | 62,00 | ×2 |
| ✓ 10 | 17/6/2018 | 2nd Nikko 62km Ultramarathon | 62,00 | ×2 |