Stadium: Hard 6 Round: 44 Ground: Clay
| ITF Women Chiswick Qual | 2018/08/05 14:00 | Destinee Martins v Anastasia Pivovarova | 0-6,7-6,1-6 |
| ITF Women Antalya | 2018/11/25 07:00 | Daria Snigur v Utaka Kishigami | 6-3,6-0 |
| ITF Women Hamamatsu | 2018/10/14 02:00 | Yukina Saigo v Utaka Kishigami | 6-4,6-2 |
| 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 |