Stadium: Court B Round: 25
| ITF Women Nanao | 2018/08/26 01:00 | Robu Kajitani v Ikumi Yamazaki | 6-2,1-6,3-6 |
| ITF Women Tsukuba | 2018/08/19 00:30 | Robu Kajitani v Mana Ayukawa | 1-6,0-6 |
| ITF Women Nonthaburi Qual | 2018/07/14 02:00 | Zuzana Zlochova v Robu Kajitani | 6-4,6-1 |
| ITF Women Nonthaburi Qual | 2018/07/08 02:00 | Patcharin Cheapchandej v Robu Kajitani | 6-3,6-2 |
| ITF Women Nonthaburi Qual | 2018/07/07 02:00 | Robu Kajitani v Sowjanya Bavisetti | 0-6,6-3,7-6 |
| ITF Women Daegu Qual | 2018/06/18 03:00 | Kanako Morisaki v Robu Kajitani | 6-2,6-1 |
| ITF Women Kurume | 2018/05/16 03:25 | Tara Moore v Robu Kajitani | 6-4,6-1 |
| ITF Women Fukuoka Qual | 2018/05/07 01:00 | Robu Kajitani v Sakura Hondo | 6-2,3-6,4-6 |
| ITF Women Nanao | 2018/08/26 01:00 | Mayuka Aikawa v Chinatsu Shimizu | 6-3,6-3 |
| ITF Women Tsukuba | 2018/08/19 00:30 | Akiko Omae v Chinatsu Shimizu | 6-2,6-3 |
| ITF Women Kofu Qual | 2018/06/09 05:30 | Chinatsu Shimizu v Lisa-Marie Rioux | 5-7,3-6 |
| ITF Women Fukuoka Qual | 2018/05/07 01:00 | Olivia Tjandramulia v Chinatsu Shimizu | 7-5,6-3 |
| ITF Women Fukuoka Qual | 2018/05/06 02:50 | Michiru Furuya v Chinatsu Shimizu | 3-6,1-6 |
| ITF Women Gifu Qual | 2018/04/29 02:35 | Chinatsu Shimizu v Rika Fujiwara | 2-6,2-6 |
| ITF Women Osaka Qual | 2018/04/07 02:30 | Chinatsu Shimizu v Ramu Ueda | 1-6,4-6 |
| ITF Women Kofu Qual | 2018/03/24 03:00 | Chinatsu Shimizu v Mitsumi Kawasaki | 3-6,6-4,2-6 |