Junichi (出原純一) Izuhara
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Ultrarunner since 2017
13
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
Japan59,4%
Rank quotient ?This runner's calculation uses 13 eligible race(s): Σ(rank − 1) = 2 735; Σ finishers = 4 606. 2 735 / 4 606 × 100 = 59.38%. A win adds 0 to the numerator. Lower is better.
Totals
Ultras completed13
Km — ultra races1 059 km
> 100 km2
Longest race102,0 km
5th Okuizumo Ultra Orochi 100km Tooashi — 13/4/2019
Km per year (ultra races)
2022
2023
2024
2025
2026
Race types (share of distance)
Road100,0%
Records
HISTORY
13 race(s)| Date | Race | Perf. | Rk | |
|---|---|---|---|---|
| 2026 | ||||
| 31.05 | 60km | 2nd Shimanami Surround 60km |
7:52:55 h | 53 |
| 2025 | ||||
| 19.10 | 60km | 31th River Shimanto 60km |
9:01:37 h | 303 |
| 12.04 | 62km | 7th Okuizumo Ultra Orochi 60km Tooashi |
8:06:33 h | 86 |
| 2024 | ||||
| 20.10 | 60km | 30th River Shimanto 60km |
7:25:20 h | 175 |
| 25.08 | 53.2km | 3rd Ainan Maranic - Food Sea and Sun |
8:19:22 h | 242 |
| 26.05 | 100km | 30th Ebisu-Daikoku 100 km Marathon |
13:52:56 h | 279 |
| 2023 | ||||
| 15.10 | 60km | 29th River Shimanto 60km |
8:06:34 h | 224 |
| 2022 | ||||
| 23.05 | 100km | 28th Ebisu-Daikoku 100 km Marathon |
13:54:56 h | 237 |
| 2019 | ||||
| 29.09 | 100km | 3rd Yasaka Ultra Marathon in Hamada - 100 km |
15:49:35 h | 134 |
| 12.05 | 100km | 26th Ebisu-Daikoku 100 km Marathon |
13:01:31 h | 252 |
| 13.04 | 102km | 5th Okuizumo Ultra Orochi 100km Tooashi |
13:11:57 h | 183 |
| 2018 | ||||
| 14.04 | 102km | 4th Okuizumo Ultra Orochi 100km Tooashi |
14:18:16 h | 232 |
| 2017 | ||||
| 28.05 | 100km | 24th Ebisu-Daikoku 100 km Marathon |
13:53:03 h | 348 |
| Runner | Races in common |
|---|---|
DUV-index calculation details
| # | Date | Race | Credited km | DUV-index+ |
|---|---|---|---|---|
| ✓ 1 | 13/4/2019 | 5th Okuizumo Ultra Orochi 100km Tooashi | 102,00 | ×3 |
| ✓ 2 | 14/4/2018 | 4th Okuizumo Ultra Orochi 100km Tooashi | 102,00 | ×3 |
| ✓ 3 | 26/5/2024 | 30th Ebisu-Daikoku 100 km Marathon | 100,00 | ×3 |
| ✓ 4 | 23/5/2022 | 28th Ebisu-Daikoku 100 km Marathon | 100,00 | ×3 |
| ✓ 5 | 29/9/2019 | 3rd Yasaka Ultra Marathon in Hamada - 100 km | 100,00 | ×3 |
| ✓ 6 | 12/5/2019 | 26th Ebisu-Daikoku 100 km Marathon | 100,00 | ×3 |
| ✓ 7 | 28/5/2017 | 24th Ebisu-Daikoku 100 km Marathon | 100,00 | ×3 |
| ✓ 8 | 12/4/2025 | 7th Okuizumo Ultra Orochi 60km Tooashi | 62,00 | ×2 |
| ✓ 9 | 31/5/2026 | 2nd Shimanami Surround 60km | 60,00 | ×2 |
| ✓ 10 | 19/10/2025 | 31th River Shimanto 60km | 60,00 | ×2 |
| ✓ 11 | 20/10/2024 | 30th River Shimanto 60km | 60,00 | ×2 |
| ✓ 12 | 15/10/2023 | 29th River Shimanto 60km | 60,00 | ×2 |
| ✓ 13 | 25/8/2024 | 3rd Ainan Maranic - Food Sea and Sun | 53,20 | ×1 |