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| Name: | Yamamoto, Koichiro | 山本晃一郎 |
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| Club: | Yamamoto Koichiro | ||
| Residence: | Saga Pref. | ||
| Year of birth: | 1973 | (Cat. german: M50) | |
| Date of birth: | 00.00.0000 | (Cat. internat.: M50) | |
| Nationality: | JPN  |
Japan | |
| RunnerID: | 1083494 | ||
19 search results (19 Events, 1805.9 km). (More)
| 2025 | 3 Events, 305 km (More) | ||||
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| 19.10.2025 | River Shimanto 100km (JPN) | 100km | |||
| 13:21:15 h | Yamamoto, Koichiro | Overall: 698 | M: 578 | Cat M50: 75 | |
| 10.05.2025 | Aso Volcano Trail (JPN) | 105km | |||
| 21:57:48 h | Yamamoto, Koichiro | *Saga Pref. | Overall: 211 | M: 191 | Cat M50: 37 |
| 12.01.2025 | Yakushima Ultramarathon 100 Km (JPN) | 100km | |||
| 14:06:28 h | Yamamoto, Koichiro | Overall: 50 | M: 43 | Cat M50: 5 | |
| 2024 | 3 Events, 329 km (More) | ||||
| 06.10.2024 | Mine Akiyoshidai Geopark Ultra Marathon (JPN) | 100km | |||
| 13:06:07 h | Yamamoto, Koichiro | *Saga Pref. | Overall: 52 | M: 46 | Cat M50: 5 |
| 26.-27.04.2024 | Ultra-Trail Mt. Fuji (UTMF) (JPN) | 167km | |||
| 45:26:56 h | Yamamoto, Koichiro | Overall: 1428 | M: 1249 | Cat M50: 261 | |
| 21.04.2024 | Fuji 3 Lakes 62 km Challenge (JPN) | 62km | |||
| 7:29:05 h | Yamamoto, Koichiro | *Tokyo | Overall: 253 | M: 193 | Cat M50: 13 |
| 2023 | 1 Event, 109 km (More) | ||||
| 15.-16.09.2023 | Gokayama-sefuri-spiraltrail (JPN) | 109km | |||
| 23:53:48 h | Yamamoto, Koichiro | Overall: 25 | M: 21 | Cat M45: 7 | |
| 2022 | 7 Events, 645.4 km (More) | ||||
| 15.10.2022 | Iki 100 Km Ultra Marathon (JPN) | 100km | |||
| 12:37:29 h | Yamamoto, Koichiro | Overall: 90 | M: 84 | Cat M45: 15 | |
| 09.10.2022 | Echigo Kubikino 100km Ultramarathon (JPN) | 100km | |||
| 11:25:12 h | Yamamoto, Koichiro | *Tokyo | Overall: 231 | M: 201 | Cat M45: 46 |
| 24.07.2022 | Kirishima Ebino-kougen Extreme Trail (JPN) | 60km | |||
| 12:15:03 h | Yamamoto, Koichiro | Overall: 219 | M: 192 | Cat M45: 43 | |
| 19.06.2022 | Akiyoshidai Karst Trail Run (JPN) | 77.4km | |||
| 12:28:33 h | Yamamoto, Koichiro | Overall: 76 | M: 65 | Cat M45: 13 | |
| 29.05.2022 | Mizukami Mountain Party (JPN) | 64km | |||
| 12:46:11 h | Yamamoto, Koichiro | *Saga Pref. | Overall: 119 | M: 110 | Cat M45: 24 |
| 22.05.2022 | Yatsugatake Nobeyama 71 km (JPN) | 71km | |||
| 7:41:12 h | Yamamoto, Koichiro | Overall: 26 | M: 21 | Cat M45: 5 | |
| 03.-04.05.2022 | Nagasaki Tachibana Gulf Coast Super Maranic 173 (JPN) | 173km | |||
| 30:47:32 h | Yamamoto, Koichiro | *Saga Pref. | Overall: 55 | M: 48 | Cat M45: 10 |
| 2021 | 2 Events, 163 km (More) | ||||
| 26.11.2021 | Tachibana Bay 273 Autumn Shimabara (JPN) | 103km | |||
| 15:16:17 h | Yamamoto, Koichiro | *Saga Pref. | Overall: 52 | M: 47 | Cat M45: 12 |
| 25.07.2021 | Kirishima Ebino-kougen Extreme Trail (JPN) | 60km | |||
| 11:07:09 h | Yamamoto, Koichiro | *Saga Pref. | Overall: 147 | M: 132 | Cat M45: 33 |
| 2019 | 2 Events, 154.5 km (More) | ||||
| 11.-12.05.2019 | Aso Round Trail Half (JPN) | 54.5km | |||
| 13:48:33 h | Yamamoto, Koichiro | *Saga Pref. | Overall: 188 | M: 159 | Cat M45: 27 |
| 21.04.2019 | Fuji 5 Lakes 100 km Challenge (JPN) | 100km | |||
| 12:18:20 h | Yamamoto, Koichiro | Overall: 593 | M: 521 | Cat M45: 71 | |
| 2018 | 1 Event, 100 km (More) | ||||
| 22.04.2018 | Fuji 5 Lakes 100 km Challenge (JPN) | 100km | |||
| 12:04:17 h | Yamamoto, Koichiro | Overall: 439 | M: 395 | Cat M40: 65 | |
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 | 2023 | 2022 | 2021 | 2019 | 2018 | |
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| 100km | 13:21:15 |
13:21:15
(6563/3020) |
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Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2024 | 2023 | 2022 | 2021 | 2019 | 2018 | ||
|---|---|---|---|---|---|---|---|---|
| Kirishima Ebino-kougen Extreme Trail | 2 | 12:15:03 | 11:07:09 | |||||
| Fuji 5 Lakes 100 km Challenge | 2 | 12:18:20 | 12:04:17 |