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| Name: | Shirai, Toshiaki | 白井利明 |
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| Club: | |||
| Residence: | Tokyo | ||
| Year of birth: | (Cat. german: #NA) | ||
| Date of birth: | 00.00.0000 | (Cat. internat.: #NA) | |
| Nationality: | JPN  |
Japan | |
| RunnerID: | 999438 | ||
7 search results (7 Events, 535 km). (More)
| 2025 | 2 Events, 200 km (More) | ||||
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| 21.12.2025 | Okinawa 100km Ultramarathon (JPN) | 100km | |||
| 10:09:15 h | Shirai, Toshiaki | *Tokyo | Overall: 73 | M: 65 | Cat #NA: 0 |
| 14.09.2025 | Tango 100 km Ultramarathon (JPN) | 100km | |||
| 11:37:10 h | Shirai, Toshiaki | Overall: 251 | M: 222 | Cat #NA: 0 | |
| 2019 | 2 Events, 110 km (More) | ||||
| 09.06.2019 | Koyasan and Ryujin-Onsen 50 Km Ultra Marathon (JPN) | 50km | |||
| 5:44:33 h | Shirai, Toshiaki | Overall: 108 | M: 90 | Cat #NA: 0 | |
| 12.05.2019 | Ishigaki Island Ultra Marathon (JPN) | 60km | |||
| 5:18:16 h | Shirai, Toshiaki | *Tokyo Pref. | Overall: 3 | M: 2 | Cat #NA: 0 |
| 2018 | 2 Events, 160 km (More) | ||||
| 03.06.2018 | Nanto 100 Km Ultramarathon (JPN) | 100km | |||
| 9:56:40 h | Shirai, Toshiaki | Overall: 13 | M: 13 | Cat #NA: 0 | |
| 13.05.2018 | Ishigaki Island Ultra Marathon (JPN) | 60km | |||
| 5:31:28 h | Shirai, Toshiaki | *Tokyo | Overall: 4 | M: 4 | Cat #NA: 0 |
| 2017 | 1 Event, 65 km (More) | ||||
| 26.08.2017 | Mt. Tateyama Climbathon (JPN) | 65km | |||
| 8:48:00 h | Shirai, Toshiaki | Overall: 17 | M: 17 | Cat #NA: 0 | |
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 | 2019 | 2018 | 2017 | |
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| 50km | 5:44:33 |
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5:44:33
(12853/221) |
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| 100km | 10:09:15 |
10:09:15
(1568/580) |
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Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2019 | 2018 | 2017 | ||
|---|---|---|---|---|---|
| Ishigaki Island Ultra Marathon | 2 | 5:18:16 | 5:31:28 |