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| Nombre: | Koseki, Keitaro | 古関啓太郎 |
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| Club: | |||
| Domicilio: | Chiba Pref. | ||
| Año de nacimiento: | 1976 | (Cat. alemana: M50) | |
| Fecha de nacimiento: | 00.00.0000 | (Cat. internac.: M45) | |
| Nacionalidad: | JPN  |
Japón | |
| RunnerID: | 1620937 | ||
14 resultados de la búsqueda (14 pruebas, 981.6 km). (Más)
| 2025 | 3 pruebas, 255 km (Más) | ||||
|---|---|---|---|---|---|
| 15.-16.11.2025 | FunTrails100K Round (JPN) | 100km | |||
| 28:50:13 h | Koseki, Keitaro | *Chiba Pref. | total: 263 | M: 218 | Cat M45: 71 |
| 05.07.2025 | Shiga Kogen 55 (JPN) | 55km | |||
| 10:26:23 h | Koseki, Keitaro | *Chiba Pref. | total: 245 | M: 208 | Cat M45: 35 |
| 09.03.2025 | Ibaraki 100k Ultra Marathon (JPN) | 100km | |||
| 13:28:24 h | Koseki, Keitaro | total: 340 | M: 299 | Cat M45: 45 | |
| 2024 | 5 pruebas, 298 km (Más) | ||||
| 22.12.2024 | Coast to Coast Boso hanto (JPN) | 70km | |||
| 11:48:54 h | Koseki, Keitaro | total: 316 | M: 286 | Cat M45: 76 | |
| 03.11.2024 | Koshu Alps Lily Route Challenge (JPN) | 50km | |||
| 12:49:01 h | Koseki, Keitaro | total: 106 | M: 88 | Cat M45: 18 | |
| 22.-23.09.2024 | SkyViewTrail Memorial Cup (JPN) | 80km | |||
| 17:24:02 h | Koseki, Keitaro | total: 167 | M: 144 | Cat M45: 30 | |
| 25.08.2024 | Tsukuba Renjyo 48 Km Road & Trail Run (JPN) | 48km | |||
| 8:06:46 h | Koseki, Keitaro | total: 137 | M: 118 | Cat M45: 20 | |
| 08.06.2024 | Okushinano 100 - 50 km (JPN) | 50km | |||
| 9:03:29 h | Koseki, Keitaro | *Chiba Pref. | total: 177 | M: 128 | Cat M45: 25 |
| 2022 | 4 pruebas, 294.5 km (Más) | ||||
| 20.-21.11.2022 | FunTrails100K Round (JPN) | 106km | |||
| 28:53:00 h | Koseki, Keitaro | *Chiba Pref. | total: 395 | M: 351 | Cat M45: 83 |
| 09.-10.10.2022 | Hasetsune Cup - Japan Mountain Endurance Race (JPN) | 71.5km | |||
| 19:52:48 h | Koseki, Keitaro | total: 884 | M: 794 | Cat M45: 176 | |
| 28.08.2022 | Tsukuba Renjyo 48 Km Road & Trail Run (JPN) | 48km | |||
| 7:46:48 h | Koseki, Keitaro | total: 81 | M: 68 | Cat M45: 14 | |
| 23.-24.04.2022 | KAI 69k (JPN) | 69km | |||
| 15:43:32 h | Koseki, Keitaro | *Chiba Pref. | total: 244 | M: 200 | Cat M45: 49 |
| 2021 | 2 pruebas, 134.1 km (Más) | ||||
| 12.12.2021 | Izu Trail Journey (JPN) | 69.1km | |||
| 12:54:36 h | Koseki, Keitaro | total: 1043 | M: 895 | Cat M40: 175 | |
| 23.-24.07.2021 | Nozawa Onsen 4100D Mountain Trail (JPN) | 65km | |||
| 14:01:32 h | Koseki, Keitaro | *Chiba Pref. | total: 418 | M: 361 | Cat M40: 78 |
Mejores marcas
Your list of personal best performances only contains performances of races which can be included into rankings.
Entre paréntesis ranking annual internacional/ranking nacional.
| PB | 2025 | 2024 | 2022 | 2021 |
|---|
Cuadro comparativo
Comparación de resultados en las carreras con participaciones múltiples
| 2025 | 2024 | 2022 | 2021 | ||
|---|---|---|---|---|---|
| Tsukuba Renjyo 48 Km Road & Trail Run | 2 | 8:06:46 | 7:46:48 | ||
| FunTrails100K Round | 2 | 28:50:13 | 28:53:00 |