Stadium: Court 1 Round: 25
| Kofu, Singles W-WITF-JPN-02A | 2018/06/14 03:35 | Tanaka, Yuuki v Mai Hontama | 6-0,2-6,6-7 |
| Kofu, Singles W-WITF-JPN-02A | 2018/06/12 01:00 | Tanaka, Yuuki v Kawasaki, Mitsumi | 6-0,6-2 |
| ITF Women Singapore | 2018/06/06 03:55 | Tanaka, Yuuki v Haruka Kaji | 7-6,4-6,1-6 |
| ITF Women Singapore | 2018/06/05 03:35 | Tanaka, Yuuki v Lynelle En Tong Lim | 6-0,6-0 |
| ITF Women Changwon | 2018/05/24 02:40 | Flink, Varvara v Tanaka, Yuuki | 7-5,6-2 |
| ITF Women Changwon | 2018/05/23 01:00 | Tanaka, Yuuki v Lee, Pei-Chei | 6-3,6-2 |
| ITF Women Incheon | 2018/05/16 01:30 | Peangtarn Plipuech v Tanaka, Yuuki | 6-1,6-0 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/20 06:45 | Mei Yamaguchi v Tanaka, Yuuki | 6-4,3-6,1-6 |
| ITF Women Changwon | 2018/05/22 04:30 | Kim, Na Ri v Flink, Varvara | 3-6,4-6 |
| ITF Women Incheon | 2018/05/17 04:35 | Kim, Na Ri v Akiko Omae | 4-6,6-7 |
| ITF Women Incheon | 2018/05/15 03:00 | Kim, Na Ri v Charmaine Shi Yi Seah | 6-2,6-3 |
| ITF Women Goyang | 2018/05/10 01:00 | Kim, Na Ri v Hibi, Mayo | 1-6,6-4,3-6 |
| ITF Women Goyang | 2018/05/09 01:00 | Kim, Na Ri v Kang, Seo-Kyung | 6-1,0-6,6-4 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/25 02:00 | Lee, So-Ra v Kim, Na Ri | 6-3,2-6,7-5 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/24 02:00 | Kim, Na Ri v Ushijima, Risa | 6-1,6-1 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/23 01:00 | Kim, Na Ri v Zhang, Ling | 6-3,6-2 |