Stadium: Court 2 Round: 54
| ITF Women Kyoto | 2017/09/05 08:10 | Yukina Saigo v Hondo, Sakura | 6-1,7-5 |
| ITF Women Kurume Qual | 2018/05/13 00:30 | Moyuka Uchijima v Yukina Saigo | 6-1,3-6,1-6 |
| ITF Women Fukuoka Qual | 2018/05/07 03:55 | Yukina Saigo v Erina Hayashi | 4-6,5-7 |
| ITF Women Fukuoka Qual | 2018/05/06 04:30 | Yukina Saigo v Imamura, Nagisa | 7-5,6-4 |
| ITF Women Osaka Qual | 2018/04/09 03:05 | Ya-Hsuan Lee v Yukina Saigo | 6-2,6-2 |
| ITF Women Osaka Qual | 2018/04/08 03:30 | Haruna Arakawa v Yukina Saigo | 5-7,3-6 |
| ITF Women Osaka Qual | 2018/04/08 01:00 | Yukina Saigo v Silich, Alina | 7-6,6-4 |
| Kofu, Singles Qualifying W-WITF-JPN-02A | 2018/03/24 00:30 | Terami, Karin v Yukina Saigo | 6-1,0-6,6-4 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/20 05:00 | Sarah Rebecca Sekulic v Yukina Saigo | 6-0,6-0 |
| ITF Women Kurume Qual | 2018/05/13 00:30 | Hondo, Sakura v Okuno, Ayaka | 6-7,6-4,7-6 |
| ITF Women Fukuoka Qual | 2018/05/08 01:00 | Miyahara, Mina v Hondo, Sakura | 6-2,3-6,7-5 |
| ITF Women Fukuoka Qual | 2018/05/07 01:00 | Kajitani, Robu v Hondo, Sakura | 6-2,3-6,4-6 |
| ITF Women Fukuoka Qual | 2018/05/06 01:00 | Hondo, Sakura v Chiang, Yuki Kristina | 6-2,6-3 |
| Hua Hin, Singles W-WITF-THA-07A | 2018/04/30 06:40 | Thamchaiwat, B. v Hondo, Sakura | 3-6,7-6,6-1 |
| ITF Women Osaka Qual | 2018/04/07 02:30 | Ya-Hsuan Lee v Hondo, Sakura | 6-3,6-1 |
| Kofu, Singles Qualifying W-WITF-JPN-02A | 2018/03/24 00:30 | Mayuka Aikawa v Hondo, Sakura | 6-4,6-2 |
| Nishi-Tama, Singles W-WITF-JPN-01A | 2018/03/17 05:30 | Kanako Morisaki v Hondo, Sakura | 6-2,6-1 |