Hirotaka (長澤宏隆) Nagasawa
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Born : 1966
Cat. M60 Ultrarunner since 2014
15
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
Japan4,4%
Rank quotient ?This runner's calculation uses 15 eligible race(s): Σ(rank − 1) = 323; Σ finishers = 7 369. 323 / 7 369 × 100 = 4.38%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed15
Km — ultra races1 500 km
Longest race100,0 km
36th Miyako 100 km Ultramarathon — 24/1/2026
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road93,3%
Trail6,7%
Records
HISTORY
15 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 24.01 | 100km | 36th Miyako 100 km Ultramarathon |
9:05:42 h | 8 |
| 2025 | ||||
| 26.01 | 100km | 35th Miyako 100 km Ultramarathon |
8:59:58 h | 10 |
| 2024 | ||||
| 21.01 | 100km | 34th Miyako 100 km Ultramarathon |
8:58:39 h | 10 |
| 2022 | ||||
| 18.12 | 100km | 5th Okinawa 100km Ultramarathon |
10:29:38 h | 70 |
| 2021 | ||||
| 05.12 | 100km | 1st Tokyo Edogawa Ultra Marathon - 100 km |
8:55:40 h | 23 |
| 14.03 | 100km | 3rd Ibaraki 100k Ultra Marathon |
9:31:52 h | 24 |
| 2020 | ||||
| 19.01 | 100km | 30th Miyako 100 km Ultramarathon |
8:28:06 h | 5 |
| 2019 | ||||
| 20.01 | 100km | 29th Miyako 100 km Ultramarathon |
8:38:20 h | 5 |
| 2018 | ||||
| 21.01 | 100km | 28th Miyako 100 km Ultramarathon |
8:38:26 h | 7 |
| 2017 | ||||
| 15.01 | 100km | 27th Miyako 100 km Ultramarathon |
8:48:49 h | 13 |
| 2016 | ||||
| 17.01 | 100km | 26th Miyako 100 km Ultramarathon |
8:47:55 h | 5 |
| 2015 | ||||
| 17.05 | 100km | 21st Yatsugatake Nobeyama 100 km |
10:21:24 h | 116 |
| 19.04 | 100km | 25th Fuji 5 Lakes 100 km Challenge |
8:38:02 h | 19 |
| 2014 | ||||
| 20.04 | 100km | 24th Fuji 5 Lakes 100 km Challenge |
8:44:17 h | 18 |
| 29.03 | 100km | 10th Izu Oshima Ultra 100 km |
9:09:45 h | 5 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 24/1/2026 | 36th Miyako 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 2 | 26/1/2025 | 35th Miyako 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 3 | 21/1/2024 | 34th Miyako 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 4 | 18/12/2022 | 5th Okinawa 100km Ultramarathon | 100,00 | ×3 |
| ✓ 5 | 5/12/2021 | 1st Tokyo Edogawa Ultra Marathon - 100 km | 100,00 | ×3 |
| ✓ 6 | 14/3/2021 | 3rd Ibaraki 100k Ultra Marathon | 100,00 | ×3 |
| ✓ 7 | 19/1/2020 | 30th Miyako 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 8 | 20/1/2019 | 29th Miyako 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 9 | 21/1/2018 | 28th Miyako 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 10 | 15/1/2017 | 27th Miyako 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 11 | 17/1/2016 | 26th Miyako 100 km Ultramarathon | 100,00 | ×3 |
| ✓ 12 | 17/5/2015 | 21st Yatsugatake Nobeyama 100 km | 100,00 | ×3 |
| ✓ 13 | 19/4/2015 | 25th Fuji 5 Lakes 100 km Challenge | 100,00 | ×3 |
| ✓ 14 | 20/4/2014 | 24th Fuji 5 Lakes 100 km Challenge | 100,00 | ×3 |
| ✓ 15 | 29/3/2014 | 10th Izu Oshima Ultra 100 km | 100,00 | ×3 |