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| Name: | Ishihara, Masakazu | 石原正一 |
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| Club: | |||
| Residence: | Naha, Okinawa Pref. | ||
| Year of birth: | 1967 | (Cat. german: M55) | |
| Date of birth: | 00.00.0000 | (Cat. internat.: M55) | |
| Nationality: | JPN  |
Japan | |
| RunnerID: | 631739 | ||
17 search results (17 Events, 1700 km). (More)
| 2025 | 3 Events, 300 km (More) | ||||
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| 21.12.2025 | Okinawa 100km Ultramarathon (JPN) | 100km | |||
| 12:52:14 h | Ishihara, Masakazu | *Okinawa Pref. | Overall: 351 | M: 289 | Cat M55: 20 |
| 29.06.2025 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 12:34:31 h | Ishihara, Masakazu | Overall: 1383 | M: 1212 | Cat M55: 139 | |
| 26.01.2025 | Miyako 100 Km Ultramarathon (JPN) | 100km | |||
| 12:07:07 h | Ishihara, Masakazu | *Naha City | Overall: 66 | M: 57 | Cat M55: 13 |
| 2024 | 2 Events, 200 km (More) | ||||
| 15.12.2024 | Okinawa 100km Ultramarathon (JPN) | 100km | |||
| 12:25:44 h | Ishihara, Masakazu | Overall: 262 | M: 218 | Cat M55: 14 | |
| 21.01.2024 | Miyako 100 Km Ultramarathon (JPN) | 100km | |||
| 11:56:25 h | Ishihara, Masakazu | Overall: 90 | M: 71 | Cat M55: 10 | |
| 2023 | 1 Event, 100 km (More) | ||||
| 17.12.2023 | Okinawa 100km Ultramarathon (JPN) | 100km | |||
| 13:35:27 h | Ishihara, Masakazu | Overall: 448 | M: 380 | Cat M55: 40 | |
| 2020 | 1 Event, 100 km (More) | ||||
| 19.01.2020 | Miyako 100 Km Ultramarathon (JPN) | 100km | |||
| 11:38:59 h | Ishihara, Masakazu | Overall: 117 | M: 93 | Cat M50: 13 | |
| 2019 | 1 Event, 100 km (More) | ||||
| 20.01.2019 | Miyako 100 Km Ultramarathon (JPN) | 100km | |||
| 11:26:41 h | Ishihara, Masakazu | *Miyakojima, Okinawa Pref. | Overall: 71 | M: 59 | Cat M50: 10 |
| 2018 | 1 Event, 100 km (More) | ||||
| 21.01.2018 | Miyako 100 Km Ultramarathon (JPN) | 100km | |||
| 13:32:37 h | Ishihara, Masakazu | *Naha, Okinawa Pref. | Overall: 242 | M: 191 | Cat M50: 32 |
| 2017 | 1 Event, 100 km (More) | ||||
| 05.03.2017 | Nagoura Marathon 100 Km (JPN) | 100km | |||
| 11:31:01 h | Ishihara, Masakazu | *Naha, Okinawa Pref. | Overall: 33 | M: 30 | Cat M45: 5 |
| 2016 | 3 Events, 300 km (More) | ||||
| 18.12.2016 | Okinawa 100km Ultramarathon (JPN) | 100km | |||
| 12:39:20 h | Ishihara, Masakazu | *Okinawa Pref. | Overall: 150 | M: 124 | Cat M45: 15 |
| 06.03.2016 | Nagoura Marathon 100 Km (JPN) | 100km | |||
| 11:32:23 h | Ishihara, Masakazu | *Naha, Okinawa Pref. | Overall: 42 | M: 39 | Cat M45: 6 |
| 17.01.2016 | Miyako 100 Km Ultramarathon (JPN) | 100km | |||
| 12:21:53 h | Ishihara, Masakazu | *Okinawa Pref. | Overall: 164 | M: 140 | Cat M45: 16 |
| 2015 | 2 Events, 200 km (More) | ||||
| 15.03.2015 | Nagoura Marathon 100 Km (JPN) | 100km | |||
| 11:14:33 h | Ishihara, Masakazu | *Okinawa Pref. | Overall: 17 | M: 16 | Cat M45: 3 |
| 11.01.2015 | Miyako 100 Km Ultramarathon (JPN) | 100km | |||
| 10:12:25 h | Ishihara, Masakazu | *Naha, Okinawa Pref. | Overall: 56 | M: 50 | Cat M45: 10 |
| 2014 | 1 Event, 100 km (More) | ||||
| 12.01.2014 | Miyako 100 Km Ultramarathon (JPN) | 100km | |||
| 11:10:18 h | Ishihara, Masakazu | *Miyakojima, Okinawa Pref. | Overall: 79 | M: 66 | Cat M45: 9 |
| 2013 | 1 Event, 100 km (More) | ||||
| 13.01.2013 | Miyako 100 Km Ultramarathon (JPN) | 100km | |||
| 12:09:12 h | Ishihara, Masakazu | *Miyakojima, Okinawa Pref. | Overall: 127 | M: 104 | Cat M45: 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 | 2023 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 100km | 12:25:44 |
12:34:31
(5016/2143) |
12:25:44
(4793/1858) |
13:35:27
(6104/3364) |
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Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2024 | 2023 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Miyako 100 Km Ultramarathon | 9 | 12:07:07 | 11:56:25 | 11:38:59 | 11:26:41 | 13:32:37 | 12:21:53 | 10:12:25 | 11:10:18 | 12:09:12 | ||
| Okinawa 100km Ultramarathon | 4 | 12:52:14 | 12:25:44 | 13:35:27 | 12:39:20 | |||||||
| Nagoura Marathon 100 Km | 3 | 11:31:01 | 11:32:23 | 11:14:33 |