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| Name: | Iwasaki, Masayuki | 岩崎正幸 |
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| Club: | アービーＲＣ | ||
| Residence: | Yamaguchi Pref. | ||
| Year of birth: | 1965 | (Cat. german: M60) | |
| Date of birth: | 00.00.0000 | (Cat. internat.: M60) | |
| Nationality: | JPN  |
Japan | |
| RunnerID: | 478797 | ||
13 search results (13 Events, 1063 km). (More)
| 2025 | 3 Events, 300 km (More) | ||||
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| 19.10.2025 | River Shimanto 100km (JPN) | 100km | |||
| 9:49:27 h | Iwasaki, Masayuki | Overall: 90 | M: 78 | Cat M55: 5 | |
| 29.06.2025 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 10:36:21 h | Iwasaki, Masayuki | Overall: 478 | M: 431 | Cat M55: 43 | |
| 20.04.2025 | Fuji 4 Lakes 100 km Challenge (JPN) | 100km | |||
| 10:36:08 h | Iwasaki, Masayuki | Overall: 223 | M: 194 | Cat M55: 11 | |
| 2024 | 1 Event, 48 km (More) | ||||
| 06.10.2024 | Mine Akiyoshidai Geopark Ultra Marathon (JPN) | 48km | |||
| 4:25:39 h | Iwasaki, Masayuki | *Shimonoseki City, Yamaguchi Pref. | Overall: 4 | M: 4 | Cat M55: 1 |
| 2023 | 1 Event, 70 km (More) | ||||
| 23.04.2023 | Suo-Oshima Ultra Marathon - 70 km (JPN) | 70km | |||
| 6:56:01 h | Iwasaki, Masayuki | Overall: 7 | M: 7 | Cat M55: 1 | |
| 2022 | 1 Event, 100 km (More) | ||||
| 22.05.2022 | Tokyo Shibamata 100 km (JPN) | 100km | |||
| 10:25:02 h | Iwasaki, Masayuki | Overall: 127 | M: 114 | Cat M55: 12 | |
| 2021 | 1 Event, 65 km (More) | ||||
| 18.07.2021 | Yamaguchi Hagi Return (JPN) | 65km | |||
| 9:15:41 h | Iwasaki, Masayuki | Overall: 55 | M: 47 | Cat M55: 6 | |
| 2017 | 1 Event, 70 km (More) | ||||
| 04.05.2017 | Yamaguchi 100 Hagi-O-Kan Maranic 70 km (JPN) | 70km | |||
| 8:27:26 h | Iwasaki, Masayuki | *Yamaguchi Pref. | Overall: 38 | M: 32 | Cat M50: 6 |
| 2016 | 1 Event, 70 km (More) | ||||
| 04.05.2016 | Yamaguchi 100 Hagi-O-Kan Maranic 70 km (JPN) | 70km | |||
| 8:23:22 h | Iwasaki, Masayuki | *Yamaguchi Pref. | Overall: 31 | M: 27 | Cat M50: 6 |
| 2015 | 2 Events, 170 km (More) | ||||
| 06.06.2015 | Aso Caldera Super Marathon 100 km (JPN) | 100km | |||
| 11:55:57 h | Iwasaki, Masayuki | Overall: 409 | M: 377 | Cat M45: 44 | |
| 04.05.2015 | Yamaguchi 100 Hagi-O-Kan Maranic 70 km (JPN) | 70km | |||
| 8:09:03 h | Iwasaki, Masayuki | *Yamaguchi Pref. | Overall: 44 | M: 42 | Cat M45: 6 |
| 2014 | 1 Event, 70 km (More) | ||||
| 04.05.2014 | Yamaguchi 100 Hagi-O-Kan Maranic 70 km (JPN) | 70km | |||
| 8:26:29 h | Iwasaki, Masayuki | *Yamaguchi Pref. | Overall: 60 | M: 55 | Cat M45: 10 |
| 2013 | 1 Event, 100 km (More) | ||||
| 20.10.2013 | River Shimanto 100km (JPN) | 100km | |||
| 12:50:44 h | Iwasaki, Masayuki | アービーRC | Overall: 618 | M: 539 | Cat M45: 83 |
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 | 2021 | 2017 | 2016 | 2015 | 2014 | 2013 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 100km | 9:49:27 |
9:49:27
(1241/443) |
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10:25:02
(1356/212) |
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12:50:44
(6747/2772) |
Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2024 | 2023 | 2022 | 2021 | 2017 | 2016 | 2015 | 2014 | 2013 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Yamaguchi 100 Hagi-O-Kan Maranic 70 km | 4 | 8:27:26 | 8:23:22 | 8:09:03 | 8:26:29 | ||||||
| River Shimanto 100km | 2 | 9:49:27 | 12:50:44 |