| Name: | Kosaka, Masako | 小坂優子 |
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| Club: | 淀川ランナーズ | ||
| Residence: | Osaka Pref. | ||
| Year of birth: | 1958 | (Cat. german: W65) | |
| Date of birth: | 07.11.1958 | (Cat. internat.: W65) | |
| Nationality: | JPN ![]() |
Japan | |
| RunnerID: | 202393 | ||
32 search results (32 Events, 3252.5 km). (More)
| 2024 | 1 Event, 100 km (More) | ||||
|---|---|---|---|---|---|
| 03.-04.05.2024 | Sunny Okayama 100km (JPN) | 100km | |||
| 23:22:31 h | Kosaka, Masako | Overall: 491 | F: 98 | Cat W65: 2 | |
| 2021 | 3 Events, 245 km (More) | ||||
| 04.-05.12.2021 | Nishi Seto Expressway Ultra Run (JPN) | 80km | |||
| 14:32:00 h | Kosaka, Masako | Overall: 32 | F: 7 | Cat W60: 1 | |
| 16.-17.10.2021 | Nakasendo to Kisoji Ultra Run (JPN) | 100km | |||
| 23:29:36 h | Kosaka, Masako | Overall: 50 | F: 11 | Cat W60: 3 | |
| 18.07.2021 | Yamaguchi Hagi Return (JPN) | 65km | |||
| 13:12:33 h | Kosaka, Masako | Overall: 380 | F: 111 | Cat W60: 5 | |
| 2019 | 2 Events, 150 km (More) | ||||
| 09.06.2019 | Koyasan and Ryujin-Onsen 50 Km Ultra Marathon (JPN) | 50km | |||
| 6:17:20 h | Kosaka, Masako | 淀川ランナーズ | Overall: 213 | F: 38 | Cat W60: 1 |
| 21.04.2019 | 100 km Ultra Maranic Osaka (JPN) | 100km | |||
| 13:48:34 h | Kosaka, Masako | Overall: 373 | F: 54 | Cat W60: 2 | |
| 2018 | 4 Events, 240 km (More) | ||||
| 21.10.2018 | River Shimanto 60km (JPN) | 60km | |||
| 7:06:47 h | Kosaka, Masako | Overall: 135 | F: 31 | Cat W55: 2 | |
| 16.09.2018 | Tango 60 km Ultramarathon (JPN) | 60km | |||
| 8:10:23 h | Kosaka, Masako | 茨木市立東小学校 | Overall: 365 | F: 79 | Cat W55: 6 |
| 10.06.2018 | Koyasan and Ryujin-Onsen 50 Km Ultra Marathon (JPN) | 50km | |||
| 6:33:47 h | Kosaka, Masako | Overall: 204 | F: 38 | Cat W55: 3 | |
| 22.04.2018 | 70 km Ultra Maranic Osaka (JPN) | 70km | |||
| 8:21:17 h | Kosaka, Masako | *Osaka Pref. | Overall: 42 | F: 11 | Cat W55: 1 |
| 2017 | 3 Events, 280 km (More) | ||||
| 11.06.2017 | Iwate Ginga 100km Marathon Challenge (JPN) | 100km | |||
| 13:44:07 h | Kosaka, Masako | *Osaka Pref. | Overall: 1043 | F: 135 | Cat W55: 17 |
| 04.05.2017 | Nagasaki Tachibana Gulf Coast Super Maranic 80 (JPN) | 80km | |||
| 11:14:19 h | Kosaka, Masako | Overall: 61 | F: 11 | Cat W55: 1 | |
| 23.04.2017 | 100 km Ultra Maranic Osaka (JPN) | 100km | |||
| 12:04:01 h | Kosaka, Masako | *Osaka Pref. | Overall: 139 | F: 13 | Cat W55: 2 |
| 2016 | 1 Event, 60 km (More) | ||||
| 18.09.2016 | Tango 60 km Ultramarathon (JPN) | 60km | |||
| 6:52:13 h | Kosaka, Masako | 大阪マスターズ | Overall: 225 | F: 38 | Cat W55: 7 |
| 2015 | 1 Event, 72 km (More) | ||||
| 07.06.2015 | Hida Takayama 72 km Ultramarathon (JPN) | 72km | |||
| 8:11:19 h | Kosaka, Masako | 淀川ランナーズ | Overall: 119 | F: 26 | Cat W55: 2 |
| 2012 | 2 Events, 200 km (More) | ||||
| 24.06.2012 | Lake Saroma 100 Km Ultramarathon (JPN) | 100km | |||
| 11:15:37 h | Kosaka, Masako | *Osaka Pref. | Overall: 817 | F: 95 | Cat W50: 13 |
| 20.05.2012 | 100 km Ultra Maranic Osaka (JPN) | 100km | |||
| 11:50:38 h | Kosaka, Masako | Overall: 121 | F: 10 | Cat W50: 1 | |
| 2011 | 4 Events, 640 km (More) | ||||
| 25.09.2011 | Muraoka 100 km Ultra Marathon (JPN) | 100km | |||
| 13:32:49 h | Kosaka, Masako | Overall: 182 | F: 23 | Cat W50: 7 | |
| 18.09.2011 | Tango 100 km Ultramarathon (JPN) | 100km | |||
| 13:31:02 h | Kosaka, Masako | 大阪ミントjc | Overall: 474 | F: 51 | Cat W50: 15 |
| 02.-04.05.2011 | Yamaguchi 100 Hagi-O-Kan Maranic 250 km (JPN) | 250km | |||
| 45:41:34 h | Kosaka, Masako | *Osaka Pref. | Overall: 120 | F: 16 | Cat W50: 3 |
| 08.-10.04.2011 | Taiyou No Michi 190km (JPN) | 190km | |||
| 38:54:00 h | Kosaka, Masako | Overall: 4 | F: 2 | Cat W50: 2 | |
| 2010 | 2 Events, 200 km (More) | ||||
| 19.09.2010 | Tango 100 km Ultramarathon (JPN) | 100km | |||
| 13:17:25 h | Kosaka, Masako | 大阪ミント | Overall: 487 | F: 54 | Cat W50: 10 |
| 25.04.2010 | Fuji 5 Lakes 100 km Challenge (JPN) | 100km | |||
| 13:47:40 h | Kosaka, Masako | *Osaka Pref. | Overall: 688 | F: 109 | Cat W50: 9 |
| 2009 | 4 Events, 361 km (More) | ||||
| 20.09.2009 | Tango 100 km Ultramarathon (JPN) | 100km | |||
| 13:35:23 h | Kosaka, Masako | 大阪水走会j百マ | Overall: 591 | F: 60 | Cat W50: 9 |
| 13.-14.06.2009 | Osaka Bay 90km (JPN) | 90km | |||
| 13:50:00 h | Kosaka, Masako | Overall: 1 | F: 1 | Cat W50: 1 | |
| 24.05.2009 | 100 km Ultra Maranic Osaka (JPN) | 100km | |||
| 12:20:23 h | Kosaka, Masako | Overall: 109 | F: 24 | Cat W50: 5 | |
| 17.05.2009 | Yatsugatake Nobeyama 71 km (JPN) | 71km | |||
| 9:40:53 h | Kosaka, Masako | 日本100マイルクラ | Overall: 127 | F: 21 | Cat W50: 3 |
| 2008 | 1 Event, 190 km (More) | ||||
| 11.-13.04.2008 | Taiyou No Michi 190km (JPN) | 190km | |||
| 38:55:00 h | Kosaka, Masako | Overall: 9 | F: 1 | Cat W45: 1 | |
| 2007 | 2 Events, 253.5 km (More) | ||||
| 13.05.2007 | Diamond trail (JPN) | 63.5km | |||
| 14:22:00 h | Kosaka, Masako | Overall: 8 | F: 1 | Cat W45: 1 | |
| 06.-08.04.2007 | Taiyou No Michi 190km (JPN) | 190km | |||
| 38:22:00 h | Kosaka, Masako | Overall: 16 | F: 2 | Cat W45: 1 | |
| 2006 | 1 Event, 71 km (More) | ||||
| 21.05.2006 | Yatsugatake Nobeyama 71 km (JPN) | 71km | |||
| 10:06:28 h | Kosaka, Masako | りそな銀行 | Overall: 173 | F: 31 | Cat W45: 7 |
| 2003 | 1 Event, 190 km (More) | ||||
| 21.-23.03.2003 | Taiyou No Michi 190km (JPN) | 190km | |||
| 39:51:00 h | Kosaka, Masako | Overall: 18 | F: 2 | Cat W40: 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 | 2021 | 2019 | 2018 | 2017 | 2016 | 2015 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2003 | |
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| 50km | 6:17:20 |
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6:17:20
(5423/107) |
6:33:47
(5225/149) |
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| 100km | 11:15:37 |
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11:15:37
(416/114) |
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Comparison table
Comparison of performances in races with multiple participations
| 2024 | 2021 | 2019 | 2018 | 2017 | 2016 | 2015 | 2012 | 2011 | 2010 | 2009 | 2008 | 2007 | 2006 | 2003 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 100 km Ultra Maranic Osaka | 4 | 13:48:34 | 12:04:01 | 11:50:38 | 12:20:23 | |||||||||||
| Taiyou No Michi 190km | 4 | 38:54:00 | 38:55:00 | 38:22:00 | 39:51:00 | |||||||||||
| Tango 100 km Ultramarathon | 3 | 13:31:02 | 13:17:25 | 13:35:23 | ||||||||||||
| Koyasan and Ryujin-Onsen 50 Km Ultra Marathon | 2 | 6:17:20 | 6:33:47 | |||||||||||||
| Tango 60 km Ultramarathon | 2 | 8:10:23 | 6:52:13 | |||||||||||||
| Yatsugatake Nobeyama 71 km | 2 | 9:40:53 | 10:06:28 |





