Stadium: Court B2 Round: 54 Ground: Hardcourt outdoor
| Tsukuba, Singles W-WITF-JPN-09A | 2018/08/19 00:30 | Kennel, Karin v Furukawa, Suzuka | 6-3,6-2 |
| Nonthaburi, Simples W-WITF-THA-09A | 2018/08/13 03:40 | Ya-Hsuan Lee v Kennel, Karin | 6-1,6-0 |
| ITF Women Woking | 2018/07/31 12:15 | Freya Christie v Kennel, Karin | 6-4,6-2 |
| ITF Women Woking Qual | 2018/07/30 12:00 | Kennel, Karin v Lindh Gallagher, Emilie | 6-4,6-1 |
| ITF Women Horb | 2018/07/25 11:25 | Caregaro, Martina v Kennel, Karin | 6-3,4-6,6-1 |
| ITF Women Horb Qual | 2018/07/24 12:35 | Kennel, Karin v Natalia Siedliska | 6-4,6-2 |
| ITF Women Horb Qual | 2018/07/23 13:00 | Kennel, Karin v Husaric, Anita | 6-2,6-1 |
| ITF Women Darmstadt | 2018/07/19 10:00 | Koelzer, Romy v Kennel, Karin | 6-2,6-2 |
| Tsukuba, Singles W-WITF-JPN-09A | 2018/08/19 00:30 | Nagato, Momoko v Naho Sato | 4-6,2-6 |
| Kofu, Singles W-WITF-JPN-02A | 2018/06/15 04:30 | Naho Sato v Shiori Fukuda | 4-6,6-4,4-6 |
| Kofu, Singles W-WITF-JPN-02A | 2018/06/14 01:00 | Misaki Matsuda v Naho Sato | 1-6,6-3,2-6 |
| Kofu, Singles W-WITF-JPN-02A | 2018/06/13 02:25 | Naho Sato v Hondo, Sakura | 6-3,7-6 |
| ITF Women Fukuoka | 2018/05/08 05:25 | Momoko Kobori v Naho Sato | 6-3,2-6,6-1 |
| ITF Women Kashiwa Qual | 2018/04/01 03:00 | Zhang, Yuxuan v Naho Sato | 3-6,6-2,7-5 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/22 04:45 | Sarah Rebecca Sekulic v Naho Sato | 6-4,7-5 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/21 03:55 | Naho Sato v Robillard-Millette, Charlotte | 6-2,7-5 |