Stadium: Court 13 Round: 62 Ground: Synthetic outdoor
| ITF Women Hamamatsu Qual | 2017/10/14 01:00 | Yukina Saigo v Utaka Kishigami | 6-4,6-3 |
| ITF Women Makinohara | 2018/10/08 00:30 | Yukina Saigo v Kisa Yoshioka | 6-7,6-3,3-6 |
| ITF Women Haren | 2018/08/31 09:00 | Yukina Saigo v Natalia Siedliska | 4-6,4-6 |
| ITF Women Haren | 2018/08/30 13:05 | Yukina Saigo v Emma Lene | 6-2,6-2 |
| ITF Women Haren | 2018/08/28 09:50 | Yukina Saigo v Regina Husak | 6-7,6-1,6-1 |
| ITF Women Wanfercee-Baulet | 2018/08/24 15:30 | Yukina Saigo v Caroline Romeo | 6-7,4-6 |
| ITF Women Wanfercee-Baulet | 2018/08/22 12:15 | Yukina Saigo v Victoria Kalaitzis | 7-5,5-7,6-3 |
| ITF Women Wanfercee-Baulet | 2018/08/21 09:00 | Yukina Saigo v Chelsea Vanhoutte | 6-1,3-6,7-6 |
| ITF Women Sandelfjord | 2018/07/27 11:00 | Yukina Saigo v Lisa Ponomar | 4-6,3-6 |
| ITF Women Fukuoka Qual | 2018/05/07 01:00 | Aiko Yoshitomi v Utaka Kishigami | 6-1,7-6 |
| ITF Women Fukuoka Qual | 2018/05/06 02:35 | Utaka Kishigami v Anastasia E Nefedova | 3-6,7-6,6-2 |
| ITF Women Osaka Qual | 2018/04/07 01:30 | Shiho Akita v Utaka Kishigami | 6-1,6-2 |
| ITF Women Kofu Qual | 2018/03/24 03:00 | Chin-Wei Chan v Utaka Kishigami | 6-4,6-2 |
| ITF Women Nishi-Tama | 2018/03/18 01:00 | Utaka Kishigami v Chihiro Takayama | 2-6,4-6 |
| ITF Women Nishi-Tama | 2018/03/17 01:00 | Utaka Kishigami v Minami Akiyama | 5-7,6-4,6-3 |
| ITF Women Hamamatsu Qual | 2017/10/14 01:00 | Yukina Saigo v Utaka Kishigami | 6-4,6-3 |
| ITF Women Makinohara Qual | 2017/10/08 03:30 | Utaka Kishigami v Mei Yamaguchi | 2-6,0-6 |