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| Name: | Koba, Hirokazu | 木場広和 |
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| Club: | |||
| Residence: | Gunma Pref. | ||
| Year of birth: | 1978 | (Cat. german: M45) | |
| Date of birth: | 00.00.0000 | (Cat. internat.: M45) | |
| Nationality: | JPN  |
Japan | |
| RunnerID: | 1191468 | ||
14 search results (14 Events, 1034.7 km). (More)
| 2025 | 3 Events, 203 km (More) | ||||
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| 21.12.2025 | Okinawa 100km Ultramarathon (JPN) | 100km | |||
| 12:24:59 h | Koba, Hirokazu | *Gunma Pref. | Overall: 273 | M: 228 | Cat M45: 36 |
| 05.07.2025 | Shiga Kogen 55 (JPN) | 55km | |||
| 10:42:11 h | Koba, Hirokazu | *Gunma Pref. | Overall: 274 | M: 233 | Cat M45: 37 |
| 14.06.2025 | KTF Trail running race - Rockin Bear (JPN) | 48km | |||
| 6:28:41 h | Koba, Hirokazu | *Gunma Pref. | Overall: 188 | M: 166 | Cat M45: 24 |
| 2024 | 1 Event, 50 km (More) | ||||
| 15.12.2024 | Okinawa 50km Ultramarathon (JPN) | 50km | |||
| 5:18:57 h | Koba, Hirokazu | Overall: 25 | M: 19 | Cat M45: 2 | |
| 2022 | 1 Event, 50 km (More) | ||||
| 18.12.2022 | Okinawa 50km Ultramarathon (JPN) | 50km | |||
| 4:52:45 h | Koba, Hirokazu | *Gunma Pref. | Overall: 13 | M: 11 | Cat M40: 4 |
| 2021 | 2 Events, 175.1 km (More) | ||||
| 12.12.2021 | Izu Trail Journey (JPN) | 69.1km | |||
| 10:02:41 h | Koba, Hirokazu | Overall: 338 | M: 307 | Cat M40: 77 | |
| 20.-21.11.2021 | FunTrails100K Round (JPN) | 106km | |||
| 20:31:25 h | Koba, Hirokazu | *Gunma Pref. | Overall: 90 | M: 80 | Cat M40: 26 |
| 2019 | 4 Events, 365.6 km (More) | ||||
| 15.12.2019 | Okinawa 100km Ultramarathon (JPN) | 100km | |||
| 11:47:22 h | Koba, Hirokazu | *Gunma Pref. | Overall: 155 | M: 132 | Cat M40: 22 |
| 21.-22.09.2019 | SkyView Ultra-Trail 140 - Yamada Noboru Memorial Cup (JPN) | 143km | |||
| 28:49:18 h | Koba, Hirokazu | Overall: 126 | M: 118 | Cat M40: 21 | |
| 23.06.2019 | Spatrail - Shima to Kusatsu 72K (JPN) | 72.6km | |||
| 10:49:22 h | Koba, Hirokazu | Overall: 174 | M: 156 | Cat M40: 40 | |
| 09.06.2019 | Skyline Trail Sugadaira (JPN) | 50km | |||
| 7:02:36 h | Koba, Hirokazu | Overall: 44 | M: 38 | Cat M40: 5 | |
| 2018 | 3 Events, 191 km (More) | ||||
| 16.12.2018 | Coast to Coast 70k Trail Run (JPN) | 68km | |||
| 10:20:17 h | Koba, Hirokazu | Overall: 269 | M: 250 | Cat M35: 42 | |
| 14.10.2018 | Gasando Trail running race (JPN) | 73km | |||
| 11:47:32 h | Koba, Hirokazu | *Gunma Pref. | Overall: 130 | M: 116 | Cat M35: 25 |
| 10.06.2018 | Skyline Trail Sugadaira (JPN) | 50km | |||
| 8:58:29 h | Koba, Hirokazu | Overall: 144 | M: 132 | Cat M35: 20 | |
Personal bests
Your list of personal best performances only contains performances of races which can be included into rankings.
In brackets rank in yearly international/national rankings.
| PB | 2025 | 2024 | 2022 | 2021 | 2019 | 2018 | |
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| 50km | 4:52:45 |
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5:18:57
(8345/74) |
4:52:45
(3866/29) |
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| 100km | 12:24:59 |
12:24:59
(4672/1952) |
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Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2024 | 2022 | 2021 | 2019 | 2018 | ||
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| Skyline Trail Sugadaira | 2 | 7:02:36 | 8:58:29 | ||||
| Okinawa 50km Ultramarathon | 2 | 5:18:57 | 4:52:45 | ||||
| Okinawa 100km Ultramarathon | 2 | 12:24:59 | 11:47:22 |