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| Name: | Kobayashi, Naoki | 小林直樹 |
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| Club: | |||
| Residence: | Akita Pref. | ||
| Year of birth: | 1972 | (Cat. german: M50) | |
| Date of birth: | 00.00.0000 | (Cat. internat.: M50) | |
| Nationality: | JPN  |
Japan | |
| RunnerID: | 1284201 | ||
11 search results (11 Events, 937.7 km). (More)
| 2025 | 2 Events, 170 km (More) | ||||
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| 19.10.2025 | River Shimanto 100km (JPN) | 100km | |||
| 12:39:15 h | Kobayashi, Naoki | Overall: 498 | M: 415 | Cat M50: 55 | |
| 08.06.2025 | Iwate Ginga 70km Marathon Challenge (JPN) | 70km | |||
| 8:13:27 h | Kobayashi, Naoki | *Akita Pref. | Overall: 48 | M: 36 | Cat M50: 5 |
| 2024 | 2 Events, 150 km (More) | ||||
| 13.10.2024 | Echigo Kubikino 100km Ultramarathon (JPN) | 100km | |||
| 13:27:00 h | Kobayashi, Naoki | *Akita Pref. | Overall: 628 | M: 513 | Cat M50: 91 |
| 22.09.2024 | Akita Nairiku 50km Marathon (JPN) | 50km | |||
| 5:03:36 h | Kobayashi, Naoki | Overall: 56 | M: 47 | Cat M50: 8 | |
| 2023 | 1 Event, 100 km (More) | ||||
| 24.09.2023 | Akita Nairiku 100km Marathon (JPN) | 100km | |||
| 12:45:29 h | Kobayashi, Naoki | Overall: 393 | M: 331 | Cat M50: 67 | |
| 2022 | 1 Event, 100 km (More) | ||||
| 12.06.2022 | Iwate Ginga 100km Marathon Challenge (JPN) | 100km | |||
| 13:40:58 h | Kobayashi, Naoki | *Akita Pref. | Overall: 655 | M: 584 | Cat M45: 127 |
| 2020 | 1 Event, 64 km (More) | ||||
| 04.10.2020 | Naeba-Sanroku Geopark Tsunan Ultramarathon 64K (JPN) | 64km | |||
| 8:39:40 h | Kobayashi, Naoki | *Akita Pref. | Overall: 57 | M: 40 | Cat M45: 9 |
| 2019 | 3 Events, 300 km (More) | ||||
| 20.10.2019 | River Shimanto 100km (JPN) | 100km | |||
| 13:49:39 h | Kobayashi, Naoki | Overall: 1180 | M: 983 | Cat M45: 150 | |
| 22.09.2019 | Akita Nairiku 100km Marathon (JPN) | 100km | |||
| 12:48:20 h | Kobayashi, Naoki | *Akita Pref. | Overall: 486 | M: 416 | Cat M45: 75 |
| 21.04.2019 | Yamadera Zao 100 Km Ultra Marathon (JPN) | 100km | |||
| 15:35:41 h | Kobayashi, Naoki | *Akita Pref. | Overall: 181 | M: 139 | Cat M45: 18 |
| 2017 | 1 Event, 53.7 km (More) | ||||
| 04.06.2017 | Rishiri Island Ultra Marathon (JPN) | 53.7km | |||
| 6:57:45 h | Kobayashi, Naoki | Overall: 89 | M: 64 | Cat M40: 7 | |
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 | 2020 | 2019 | 2017 | |
|---|---|---|---|---|---|---|---|---|
| 100km | 12:39:15 |
12:39:15
(5194/2245) |
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13:49:39
(9267/4998) |
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Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2024 | 2023 | 2022 | 2020 | 2019 | 2017 | ||
|---|---|---|---|---|---|---|---|---|
| River Shimanto 100km | 2 | 12:39:15 | 13:49:39 | |||||
| Akita Nairiku 100km Marathon | 2 | 12:45:29 | 12:48:20 |