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| Name: | Iwase, Mitsumasa | 岩瀬光正 |
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| Club: | ARC | ||
| Residence: | Tokyo Pref. | ||
| Year of birth: | 1976 | (Cat. german: M50) | |
| Date of birth: | 00.00.0000 | (Cat. internat.: M45) | |
| Nationality: | JPN  |
Japan | |
| RunnerID: | 221828 | ||
14 search results (14 Events, 1400 km). (More)
| 2025 | 1 Event, 120 km (More) | ||||
|---|---|---|---|---|---|
| 20.04.2025 | Fuji 5 Lakes Sparta Challenge (JPN) | 120km | |||
| 13:57:27 h | Iwase, Mitsumasa | Overall: 225 | M: 196 | Cat M45: 35 | |
| 2024 | 2 Events, 156 km (More) | ||||
| 23.-24.08.2024 | World Cultural Heritage "Fuji" Foot Race (JPN) | 101km | |||
| 12:45:03 h | Iwase, Mitsumasa | Overall: 28 | M: 23 | Cat M45: 9 | |
| 11.05.2024 | Kimitsu Ultra Marathon (JPN) | 55km | |||
| 5:11:18 h | Iwase, Mitsumasa | Overall: 16 | M: 15 | Cat M45: 4 | |
| 2023 | 1 Event, 100 km (More) | ||||
| 21.05.2023 | Tokyo Shibamata 100 km (JPN) | 100km | |||
| 9:49:13 h | Iwase, Mitsumasa | Overall: 84 | M: 80 | Cat M45: 11 | |
| 2022 | 1 Event, 100 km (More) | ||||
| 22.05.2022 | Tokyo Shibamata 100 km (JPN) | 100km | |||
| 8:49:16 h | Iwase, Mitsumasa | Overall: 32 | M: 26 | Cat M45: 4 | |
| 2021 | 1 Event, 60 km (More) | ||||
| 09.10.2021 | Tokyo Shibamata 60 km (JPN) | 60km | |||
| 5:31:48 h | Iwase, Mitsumasa | Overall: 14 | M: 12 | Cat M40: 6 | |
| 2020 | 1 Event, 146 km (More) | ||||
| 24.-25.10.2020 | Autumn leaves in Okumusashi / Chichibu Journey run (JPN) | 146km | |||
| 18:41:50 h | Iwase, Mitsumasa | ARC | Overall: 28 | M: 25 | Cat M40: 3 |
| 2019 | 2 Events, 218 km (More) | ||||
| 19.05.2019 | Tokyo Shibamata 100 km (JPN) | 100km | |||
| 9:22:04 h | Iwase, Mitsumasa | Overall: 59 | M: 55 | Cat M40: 13 | |
| 21.04.2019 | Fuji 5 Lakes 118 km Challenge (JPN) | 118km | |||
| 13:25:49 h | Iwase, Mitsumasa | Overall: 151 | M: 139 | Cat M40: 31 | |
| 2018 | 2 Events, 200 km (More) | ||||
| 03.06.2018 | Tokyo Shibamata 100 km (JPN) | 100km | |||
| 9:50:49 h | Iwase, Mitsumasa | Overall: 86 | M: 80 | Cat M40: 17 | |
| 22.04.2018 | Fuji 5 Lakes 100 km Challenge (JPN) | 100km | |||
| 12:13:49 h | Iwase, Mitsumasa | ARC | Overall: 470 | M: 422 | Cat M40: 71 |
| 2016 | 1 Event, 100 km (More) | ||||
| 05.06.2016 | Tokyo Shibamata 100 km (JPN) | 100km | |||
| 9:50:16 h | Iwase, Mitsumasa | Overall: 109 | M: 106 | Cat M35: 21 | |
| 2015 | 1 Event, 100 km (More) | ||||
| 06.06.2015 | Tokyo Shibamata 100 km (JPN) | 100km | |||
| 10:34:28 h | Iwase, Mitsumasa | Overall: 214 | M: 203 | Cat M35: 34 | |
| 2011 | 1 Event, 100 km (More) | ||||
| 30.04.2011 | Fuji 5 Lakes 100 km Challenge (JPN) | 100km | |||
| 13:56:11 h | Iwase, Mitsumasa | Overall: 855 | M: 733 | Cat M23: 90 | |
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 | 2020 | 2019 | 2018 | 2016 | 2015 | 2011 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 100km | 8:49:16 |
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9:49:13
(1186/470) |
8:49:16
(438/45) |
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9:22:04
(891/292) |
9:50:49
(1549/608) |
9:50:16
(1517/679) |
10:34:28
(2668/1122) |
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Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2016 | 2015 | 2011 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tokyo Shibamata 100 km | 6 | 9:49:13 | 8:49:16 | 9:22:04 | 9:50:49 | 9:50:16 | 10:34:28 | |||||
| Fuji 5 Lakes 100 km Challenge | 2 | 12:13:49 | 13:56:11 |