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| Name: | Kai, Aiko | 甲斐愛子 |
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| Club: | チーム松永 | ||
| Residence: | Niigata Pref. | ||
| Year of birth: | 1973 | (Cat. german: W50) | |
| Date of birth: | 20.12.1973 | (Cat. internat.: W50) | |
| Nationality: | JPN  |
Japan | |
| RunnerID: | 180271 | ||
52 search results (52 Events, 9975.365 km). (More)
| 2025 | 5 Events, 1552.049 km (More) | ||||
|---|---|---|---|---|---|
| 04.-05.10.2025 | Noto Country Journey Run (JPN) | 151km | |||
| 21:41:02 h | Kai, Aiko | *Niigata Pref. | Overall: 21 | F: 3 | Cat W50: 2 |
| 13.-15.09.2025 | Shinetsu Five Mountains Trail 100 mile (JPN) | 100mi | |||
| 32:01:58 h | Kai, Aiko | Overall: 216 | F: 22 | Cat W50: 5 | |
| 07.09.2025 | Taiwania 50 Ultra Trail (TPE) | 50km | |||
| 5:45:54 h | Kai, Aiko | Overall: 6 | F: 1 | Cat W50: 1 | |
| 23.-29.05.2025 | Hirosaki 6days Ultra Run (JPN) | 6d | |||
| 674.115 km | Kai, Aiko | *Niigata Pref. | Overall: 12 | F: 4 | Cat W50: 3 |
| 30.04.-05.05.2025 | River Road Foot Race 514 Km (JPN) | 516km | |||
| 4d 18:57:22 h | Kai, Aiko | *Niigata Pref. | Overall: 20 | F: 5 | Cat W50: 1 |
| 2024 | 5 Events, 1611.177 km (More) | ||||
| 11.-13.10.2024 | Lake Biwa 100 (JPN) | 169km | |||
| 43:43:49 h | Kai, Aiko | Overall: 111 | F: 24 | Cat W50: 6 | |
| 14.-16.09.2024 | Shinetsu Five Mountains Trail 100 mile (JPN) | 100mi | |||
| 26:57:42 h | Kai, Aiko | 角田山柿ｶﾞｰﾙ | Overall: 125 | F: 13 | Cat W50: 2 |
| 14.07.2024 | OSJ Ontake 100km Ultra Trail (JPN) | 100km | |||
| 15:34:44 h | Kai, Aiko | *Niigata Pref. | Overall: 374 | F: 49 | Cat W50: 10 |
| 20.-26.05.2024 | Hirosaki 6days Ultra Run (JPN) | 6d | |||
| 667.243 km | Kai, Aiko | *Niigata Pref. | Overall: 8 | F: 2 | Cat W50: 2 |
| 30.04.-05.05.2024 | River Road Foot Race 514 Km (JPN) | 514km | |||
| 4d 20:25:40 h | Kai, Aiko | *Niigata Pref. | Overall: 26 | F: 6 | Cat W50: 2 |
| 2023 | 5 Events, 988.268 km (More) | ||||
| 07.-09.10.2023 | OSJ Koumi 100 (JPN) | 100mi | |||
| 35:47:10 h | Kai, Aiko | Utrs | Overall: 113 | F: 13 | Cat W45: 5 |
| 16.-18.09.2023 | Shinetsu Five Mountains Trail 100 mile (JPN) | 100mi | |||
| 31:07:40 h | Kai, Aiko | 角田山柿ｶﾞｰﾙ | Overall: 129 | F: 16 | Cat W45: 6 |
| 03.09.2023 | OSJ Adatara Trail 50K (JPN) | 53.4km | |||
| 11:34:54 h | Kai, Aiko | Utrs | Overall: 65 | F: 8 | Cat W45: 2 |
| 16.07.2023 | OSJ Ontake 100km Ultra Trail (JPN) | 100km | |||
| 16:49:53 h | Kai, Aiko | Utrs | Overall: 294 | F: 37 | Cat W45: 9 |
| 30.04.-05.05.2023 | River Road Foot Race 513 Km (JPN) | 513km | |||
| 4d 15:31:47 h | Kai, Aiko | Overall: 12 | F: 2 | Cat W45: 1 | |
| 2022 | 3 Events, 773.934 km (More) | ||||
| 08.-10.10.2022 | OSJ Koumi 100 (JPN) | 100mi | |||
| 35:26:32 h | Kai, Aiko | Overall: 95 | F: 4 | Cat W45: 1 | |
| 11.-12.06.2022 | Okushinano 100 (JPN) | 100km | |||
| 16:31:45 h | Kai, Aiko | ウルトラトレイルランナーズ | Overall: 168 | F: 15 | Cat W45: 4 |
| 30.04.-05.05.2022 | River Road Foot Race 513 Km (JPN) | 513km | |||
| 4d 11:44:50 h | Kai, Aiko | UTRS | Overall: 14 | F: 3 | Cat W45: 2 |
| 2021 | 2 Events, 150 km (More) | ||||
| 03.10.2021 | Naeba-Sanroku Geopark Tsunan Ultramarathon 100K (JPN) | 100km | |||
| 11:52:07 h | Kai, Aiko | 角田山柿ガール | Overall: 33 | F: 8 | Cat W45: 2 |
| 04.09.2021 | OSJ Adatara Trail 50K (JPN) | 50km | |||
| 12:10:47 h | Kai, Aiko | Utrs | Overall: 70 | F: 3 | Cat W45: 2 |
| 2020 | 1 Event, 100 km (More) | ||||
| 04.10.2020 | Naeba-Sanroku Geopark Tsunan Ultramarathon 100K (JPN) | 100km | |||
| 14:18:26 h | Kai, Aiko | *Niigata Pref. | Overall: 88 | F: 14 | Cat W45: 2 |
| 2019 | 3 Events, 694 km (More) | ||||
| 29.09.2019 | Naeba-Sanroku Geopark Tsunan Ultramarathon 100K (JPN) | 100km | |||
| 12:15:12 h | Kai, Aiko | 角田山 柿ガール | Overall: 14 | F: 4 | Cat W45: 2 |
| 22.06.2019 | OSJ Yamanaka Onsen Trail Run (JPN) | 80km | |||
| 16:49:24 h | Kai, Aiko | Overall: 167 | F: 15 | Cat W45: 6 | |
| 30.04.-05.05.2019 | River Road Foot Race 514 Km (JPN) | 514km | |||
| 4d 19:36:01 h | Kai, Aiko | Overall: 29 | F: 5 | Cat W45: 2 | |
| 2018 | 4 Events, 845.151 km (More) | ||||
| 10.-11.11.2018 | Jingu Gaien 24 Hour Challenge (JPN) | 24h | |||
| 186.151 km | Kai, Aiko | Overall: 45 | F: 15 | Cat W40: 6 | |
| 14.-15.07.2018 | Nozawa Onsen 4100D Mountain Trail (JPN) | 65km | |||
| 10:55:37 h | Kai, Aiko | *Niigata Pref. | Overall: 32 | F: 5 | Cat W40: 1 |
| 23.06.2018 | OSJ Yamanaka Onsen Trail Run (JPN) | 80km | |||
| 15:03:51 h | Kai, Aiko | Overall: 90 | F: 10 | Cat W40: 4 | |
| 30.04.-05.05.2018 | River Road Foot Race 514 Km (JPN) | 514km | |||
| 4d 13:26:55 h | Kai, Aiko | Overall: 14 | F: 3 | Cat W40: 2 | |
| 2017 | 5 Events, 923.015 km (More) | ||||
| 11.-12.11.2017 | Jingu Gaien 24 Hour Challenge (JPN) | 24h | |||
| 173.015 km | Kai, Aiko | Overall: 60 | F: 15 | Cat W40: 5 | |
| 29.10.2017 | OSJ Yamanaka Onsen Trail Run (JPN) | 75km | |||
| 16:11:54 h | Kai, Aiko | *Niigata Pref. | Overall: 66 | F: 9 | Cat W40: 4 |
| 29.-30.07.2017 | OSJ Itamuro 100 (JPN) | 102km | |||
| 21:07:35 h | Kai, Aiko | Overall: 52 | F: 2 | Cat W40: 1 | |
| 18.06.2017 | Echigo Country Trail (JPN) | 53km | |||
| 6:59:36 h | Kai, Aiko | *Niigata Pref. | Overall: 51 | F: 7 | Cat W40: 1 |
| 30.04.-05.05.2017 | River Road Foot Race 520 Km (JPN) | 520km | |||
| 4d 18:54:02 h | Kai, Aiko | Overall: 23 | F: 1 | Cat W40: 1 | |
| 2016 | 6 Events, 1097.437 km (More) | ||||
| 17.-18.12.2016 | Jingu Gaien 24 Hour Challenge (JPN) | 24h | |||
| 172.503 km | Kai, Aiko | Overall: 60 | F: 16 | Cat W40: 7 | |
| 08.-09.10.2016 | OSJ Koumi 100 (JPN) | 100mi | |||
| 35:42:39 h | Kai, Aiko | チーム松永 | Overall: 71 | F: 4 | Cat W40: 2 |
| 11.-12.09.2016 | SkyView Ultra-Trail 120 - Yamada Noboru Memorial Cup (JPN) | 129km | |||
| 30:39:28 h | Kai, Aiko | *Niigata Pref. | Overall: 213 | F: 5 | Cat W40: 2 |
| 16.-17.07.2016 | Nozawa Onsen 4100D Mountain Trail (JPN) | 65km | |||
| 9:34:58 h | Kai, Aiko | *Niigata Pref. | Overall: 42 | F: 2 | Cat W40: 1 |
| 19.06.2016 | Echigo Country Trail (JPN) | 50km | |||
| 7:06:28 h | Kai, Aiko | *Niigata, Niigata Pref. | Overall: 32 | F: 5 | Cat W40: 4 |
| 30.04.-05.05.2016 | River Road Foot Race 520 Km (JPN) | 520km | |||
| 4d 18:12:44 h | Kai, Aiko | Overall: 24 | F: 1 | Cat W40: 1 | |
| 2014 | 2 Events, 181.4 km (More) | ||||
| 12.10.2014 | Echigo Kubikino 100km Ultramarathon (JPN) | 100km | |||
| 11:16:40 h | Kai, Aiko | *Niigata, Niigata Pref. | Overall: 335 | F: 33 | Cat W40: 6 |
| 15.06.2014 | Spatrail - Shima to Kusatsu (JPN) | 81.4km | |||
| 11:35:35 h | Kai, Aiko | Overall: 111 | F: 9 | Cat W40: 3 | |
| 2013 | 4 Events, 447.934 km (More) | ||||
| 15.-16.09.2013 | Shinetsu Five Mountains Trail 110km (JPN) | 110km | |||
| 19:59:13 h | Kai, Aiko | Overall: 289 | F: 31 | Cat W35: 9 | |
| 28.07.2013 | Ultramarathon Okumusashi (JPN) | 77km | |||
| 8:35:37 h | Kai, Aiko | Overall: 325 | F: 49 | Cat W35: 8 | |
| 13.07.2013 | OSJ Ontake 100km Ultra Trail (JPN) | 100km | |||
| 13:44:57 h | Kai, Aiko | チーム松永 | Overall: 163 | F: 8 | Cat W35: 5 |
| 26.-28.04.2013 | Ultra-Trail Mount Fuji (UTMF) (JPN) | 100mi | |||
| 35:16:07 h | Kai, Aiko | *Niigata Pref. | Overall: 225 | F: 21 | Cat W35: 8 |
| 2012 | 3 Events, 287 km (More) | ||||
| 06.10.2012 | Echigo Kubikino 100km Ultramarathon (JPN) | 100km | |||
| 11:04:10 h | Kai, Aiko | *Niigata, Niigata Pref. | Overall: 232 | F: 20 | Cat W35: 5 |
| 16.-17.09.2012 | Shinetsu Five Mountains Trail 110km (JPN) | 110km | |||
| 18:35:50 h | Kai, Aiko | Overall: 393 | F: 12 | Cat W35: 6 | |
| 05.08.2012 | Ultramarathon Okumusashi (JPN) | 77km | |||
| 9:18:00 h | Kai, Aiko | *Niigata Pref. | Overall: 380 | F: 62 | Cat W35: 17 |
| 2011 | 2 Events, 147 km (More) | ||||
| 07.08.2011 | Ultramarathon Okumusashi (JPN) | 77km | |||
| 9:27:59 h | Kai, Aiko | *Niigata Pref. | Overall: 468 | F: 92 | Cat W35: 18 |
| 03.05.2011 | Mukogawa Yurikamome Ultra Marathon (JPN) | 70km | |||
| 7:45:37 h | Kai, Aiko | Overall: 241 | F: 29 | Cat W35: 10 | |
| 2010 | 2 Events, 177 km (More) | ||||
| 09.10.2010 | Echigo Kubikino 100km Ultramarathon (JPN) | 100km | |||
| 11:12:02 h | Kai, Aiko | *Niigata, Niigata Pref. | Overall: 268 | F: 29 | Cat W35: 5 |
| 01.08.2010 | Ultramarathon Okumusashi (JPN) | 77km | |||
| 9:28:55 h | Kai, Aiko | Overall: 356 | F: 55 | Cat W35: 11 | |
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 | 2017 | 2016 | 2014 | 2013 | 2012 | 2011 | 2010 | |
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| 24h | 186.151 |
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186.151
(114/18) |
173.015
(222/22) |
172.503
(194/17) |
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| 6d | 674.115 |
674.115
(11/3) |
667.243
(15/2) |
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Comparison table
Comparison of performances in races with multiple participations
| 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2014 | 2013 | 2012 | 2011 | 2010 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| River Road Foot Race 520 Km | 8 | 114:57:22 | 116:25:40 | 111:31:47 | 107:44:50 | 115:36:01 | 109:26:55 | 114:54:02 | 114:12:44 | |||||||
| Ultramarathon Okumusashi | 4 | 8:35:37 | 9:18:00 | 9:27:59 | 9:28:55 | |||||||||||
| Naeba-Sanroku Geopark Tsunan Ultramarathon 100K | 3 | 11:52:07 | 14:18:26 | 12:15:12 | ||||||||||||
| Shinetsu Five Mountains Trail 100 mile | 3 | 32:01:58 | 26:57:42 | 31:07:40 | ||||||||||||
| Echigo Kubikino 100km Ultramarathon | 3 | 11:16:40 | 11:04:10 | 11:12:02 | ||||||||||||
| OSJ Koumi 100 | 3 | 35:47:10 | 35:26:32 | 35:42:39 | ||||||||||||
| OSJ Yamanaka Onsen Trail Run | 3 | 16:49:24 | 15:03:51 | 16:11:54 | ||||||||||||
| OSJ Ontake 100km Ultra Trail | 3 | 15:34:44 | 16:49:53 | 13:44:57 | ||||||||||||
| Jingu Gaien 24 Hour Challenge | 3 | 186.151 | 173.015 | 172.503 | ||||||||||||
| Hirosaki 6days Ultra Run | 2 | 674.115 | 667.243 | |||||||||||||
| Nozawa Onsen 4100D Mountain Trail | 2 | 10:55:37 | 9:34:58 | |||||||||||||
| Echigo Country Trail | 2 | 6:59:36 | 7:06:28 | |||||||||||||
| OSJ Adatara Trail 50K | 2 | 11:34:54 | 12:10:47 | |||||||||||||
| Shinetsu Five Mountains Trail 110km | 2 | 19:59:13 | 18:35:50 |