Stadium: COURT B Round: 54 Ground: Synthetic outdoor
| ITF Women Nanao | 2018/08/29 05:20 | Takahata, Kotomi v Haruka Kaji | 6-7,2-6 |
| ITF Women Nanao | 2018/08/27 01:00 | Takahata, Kotomi v Shuto, Minami | 7-6,6-3 |
| ITF Women Nanao | 2018/08/26 03:25 | Takahata, Kotomi v Ayano Sonoda | 6-4,6-0 |
| Tsukuba, Singles W-WITF-JPN-09A | 2018/08/19 03:00 | So, Kumi v Takahata, Kotomi | 6-4,6-4 |
| ITF Women Taipei | 2018/07/24 03:55 | Chan, Chin-Wei v Takahata, Kotomi | 4-6,6-3,6-3 |
| ITF Women Astana Qual | 2018/07/14 10:45 | Kruzhkova, Daria v Takahata, Kotomi | 6-2,6-1 |
| ITF Women Tianjin Qual | 2018/07/09 02:00 | Takahata, Kotomi v Mei Xu Wu | 3-6,6-2,2-6 |
| ITF Women Tianjin Qual | 2018/07/08 06:35 | Takahata, Kotomi v Yang, Qian | 6-0,6-2 |
| ITF Women Kyoto | 2018/09/04 08:50 | Kajitani, Robu v Shimizu, Chinatsu | 6-4,6-2 |
| ITF Women Nanao | 2018/08/26 01:00 | Kajitani, Robu v Ikumi Yamazaki | 6-2,1-6,3-6 |
| Tsukuba, Singles W-WITF-JPN-09A | 2018/08/19 00:30 | Kajitani, Robu v Mana Ayukawa | 1-6,0-6 |
| ITF Women Nonthaburi Qual | 2018/07/14 02:00 | Zlochova, Zuzana v Kajitani, Robu | 6-4,6-1 |
| ITF Women Nonthaburi Qual | 2018/07/08 02:00 | Patcharin Cheapchandej v Kajitani, Robu | 6-3,6-2 |
| ITF Women Nonthaburi Qual | 2018/07/07 02:00 | Kajitani, Robu v Sowjanya Bavisetti | 0-6,6-3,7-6 |
| ITF Women Daegu Qual | 2018/06/18 03:00 | Kanako Morisaki v Kajitani, Robu | 6-2,6-1 |
| ITF Women Kurume | 2018/05/16 03:25 | Moore, Tara v Kajitani, Robu | 6-4,6-1 |