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| Name: | Shirai, Isao | 白井功 |
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| Club: | |||
| Residence: | Saitama Pref. | ||
| Year of birth: | 1964 | (Cat. german: M60) | |
| Date of birth: | 24.03.1964 | (Cat. internat.: M60) | |
| Nationality: | JPN  |
Japan | |
| RunnerID: | 71988 | ||
14 search results (14 Events, 1348 km). (More)
| 2024 | 1 Event, 100 km (More) | ||||
|---|---|---|---|---|---|
| 21.04.2024 | 100 km Ultra Maranic Osaka (JPN) | 100km | |||
| 13:12:46 h | Shirai, Isao | Overall: 167 | M: 135 | Cat M60: 12 | |
| 2023 | 1 Event, 70 km (More) | ||||
| 23.04.2023 | 70 km Ultra Maranic Osaka (JPN) | 70km | |||
| 8:18:18 h | Shirai, Isao | Overall: 85 | M: 54 | Cat M55: 8 | |
| 2022 | 1 Event, 60 km (More) | ||||
| 22.05.2022 | Tokyo Shibamata 60 km (JPN) | 60km | |||
| 6:19:41 h | Shirai, Isao | Overall: 67 | M: 57 | Cat M55: 8 | |
| 2019 | 1 Event, 100 km (More) | ||||
| 19.05.2019 | Tokyo Shibamata 100 km (JPN) | 100km | |||
| 9:52:12 h | Shirai, Isao | Overall: 122 | M: 116 | Cat M55: 6 | |
| 2018 | 1 Event, 100 km (More) | ||||
| 03.06.2018 | Tokyo Shibamata 100 km (JPN) | 100km | |||
| 9:50:52 h | Shirai, Isao | Overall: 87 | M: 81 | Cat M50: 7 | |
| 2017 | 2 Events, 200 km (More) | ||||
| 02.07.2017 | Nikko 100km Ultramarathon (JPN) | 100km | |||
| 10:00:40 h | Shirai, Isao | *Saitama Pref. | Overall: 75 | M: 69 | Cat M50: 6 |
| 04.06.2017 | Tokyo Shibamata 100 km (JPN) | 100km | |||
| 9:04:09 h | Shirai, Isao | Overall: 56 | M: 53 | Cat M50: 3 | |
| 2016 | 2 Events, 200 km (More) | ||||
| 09.10.2016 | Echigo Kubikino 100km Ultramarathon (JPN) | 100km | |||
| 8:51:46 h | Shirai, Isao | *Saitama Pref. | Overall: 30 | M: 28 | Cat M50: 2 |
| 05.06.2016 | Tokyo Shibamata 100 km (JPN) | 100km | |||
| 8:52:08 h | Shirai, Isao | Overall: 19 | M: 19 | Cat M50: 1 | |
| 2015 | 2 Events, 218 km (More) | ||||
| 06.06.2015 | Tokyo Shibamata 100 km (JPN) | 100km | |||
| 9:05:55 h | Shirai, Isao | Overall: 39 | M: 39 | Cat M50: 3 | |
| 19.04.2015 | Fuji 5 Lakes 118 km Challenge (JPN) | 118km | |||
| 10:48:36 h | Shirai, Isao | Overall: 14 | M: 14 | Cat M50: 1 | |
| 2014 | 1 Event, 100 km (More) | ||||
| 12.10.2014 | Echigo Kubikino 100km Ultramarathon (JPN) | 100km | |||
| 9:01:22 h | Shirai, Isao | *Saitama Pref. | Overall: 45 | M: 44 | Cat M50: 3 |
| 2013 | 1 Event, 100 km (More) | ||||
| 01.06.2013 | Tokyo Shibamata 100 km (JPN) | 100km | |||
| 9:50:13 h | Shirai, Isao | *Saitama Pref. | Overall: 88 | M: 82 | Cat M45: 13 |
| 2009 | 1 Event, 100 km (More) | ||||
| 28.06.2009 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 7:35:32 h | Shirai, Isao | *Saitama Pref. | Overall: 8 | M: 8 | Cat M45: 1 |
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 | 2024 | 2023 | 2022 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2009 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 100km | 7:35:32 |
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9:52:12
(1529/599) |
9:50:52
(1552/610) |
9:04:09
(671/234) |
8:52:08
(582/216) |
9:05:55
(838/291) |
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9:50:13
(1441/424) |
7:35:32
(90/17) |
Comparison table
Comparison of performances in races with multiple participations
| 2024 | 2023 | 2022 | 2019 | 2018 | 2017 | 2016 | 2015 | 2014 | 2013 | 2009 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tokyo Shibamata 100 km | 6 | 9:52:12 | 9:50:52 | 9:04:09 | 8:52:08 | 9:05:55 | 9:50:13 | |||||
| Echigo Kubikino 100km Ultramarathon | 2 | 8:51:46 | 9:01:22 |