Stadium: Court 11 Round: 62
| ITF Women Nanjing Qual | 2018/03/24 05:30 | Koike, Satsuki v Emma Raducanu | 0-6,0-6 |
| ITF Women Nanjing | 2018/03/17 02:30 | Koike, Satsuki v Scandalis, Zoe Gwen | 5-7,4-6 |
| ITF Women Toyota Qual | 2018/03/10 01:00 | Camilla Rosatello v Koike, Satsuki | 6-2,6-2 |
| ITF Women Hamamatsu Qual | 2017/10/17 06:00 | Neel, Ingrid v Koike, Satsuki | 6-2,6-1 |
| ITF Women Makinohara Qual | 2017/10/09 02:30 | Koike, Satsuki v Shimizu, Chinatsu | 4-6,5-7 |
| ITF Women Makinohara Qual | 2017/10/08 05:00 | van Der Hoek, Rosalie v Koike, Satsuki | 3-6,0-6 |
| Kofu, Singles Qualifying W-WITF-JPN-02A | 2017/06/11 00:00 | Koike, Satsuki v Furuya, Michiru | 2-6,1-6 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2017/03/19 02:00 | Wushuang Zheng v Koike, Satsuki | 6-3,6-4 |
| Kofu, Singles Qualifying W-WITF-JPN-02A | 2018/03/25 04:00 | Furukawa, Suzuka v Ushijima, Risa | 3-6,0-6 |
| Kofu, Singles Qualifying W-WITF-JPN-02A | 2018/03/24 04:00 | Ishino, Aoi v Furukawa, Suzuka | 3-6,2-6 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/17 01:00 | Furukawa, Suzuka v Takayama, Chihiro | 4-6,2-6 |
| ITF Women Hamamatsu Qual | 2017/10/16 03:30 | Furukawa, Suzuka v Cheong, Naomi | 1-6,0-6 |
| ITF Women Kyoto | 2017/09/04 01:00 | Furukawa, Suzuka v Mei Yamaguchi | 0-6,5-7 |
| ITF Women Kyoto | 2017/09/02 03:00 | Shimizu, Chinatsu v Furukawa, Suzuka | 2-6,6-3,6-7 |
| ITF Women Nanao Qual | 2017/08/27 01:00 | Shimizu, Chinatsu v Furukawa, Suzuka | 6-2,6-3 |
| ITF Women Tsukuba Qual | 2017/08/20 00:30 | Furukawa, Suzuka v Dabin Kim | 1-6,3-6 |