Stadium: Indoor 5 Round: 26 Ground: Hardcourt outdoor
| ITF Women Brisbane | 2017/09/26 01:25 | Momoko Kobori v Eri Hozumi | 0-6,7-5,6-2 |
| ITF Women Yokohama | 2018/03/07 05:30 | Eri Hozumi v Kai-Chen Chang | 7-6,5-7,6-4 |
| ITF Women Perth | 2018/02/22 04:10 | Eri Hozumi v Gabriella Taylor | 3-6,3-6 |
| ITF Women Perth | 2018/02/21 02:00 | Eri Hozumi v Olivia Tjandramulia | 6-2,6-0 |
| ITF Women Perth | 2018/02/15 03:50 | Eri Hozumi v Katy Dunne | 4-6,1-6 |
| ITF Women Perth | 2018/02/14 05:25 | Eri Hozumi v Erika Sema | 6-3,5-7,6-1 |
| WTA Taipei Qual | 2018/01/27 05:40 | Eri Hozumi v Hiroko Kuwata | 1-6,6-7 |
| Australian Open Women Qual | 2018/01/11 02:30 | Tamara Zidansek v Eri Hozumi | 6-3,6-3 |
| WTA Auckland Qual | 2017/12/30 00:10 | Silvia Soler-Espinosa v Eri Hozumi | 6-2,6-3 |
| ITF Women Yokohama | 2018/03/07 03:20 | Momoko Kobori v Chloe Paquet | 2-6,6-1,6-4 |
| ITF Women Yokohama Qual | 2018/03/05 01:00 | Momoko Kobori v Naomi Cheong | 6-4,6-3 |
| ITF Women Burnie Qual | 2018/01/29 00:00 | Momoko Kobori v Anastasia Pivovarova | 0-6,3-6 |
| ITF Women Burnie Qual | 2018/01/28 05:00 | Momoko Kobori v Nagi Hanatani | 6-0,6-4 |
| ITF Women Burnie Qual | 2018/01/28 00:20 | Momoko Kobori v Belinda Woolcock | 6-3,2-6,6-3 |
| Australian Open Women WC Qual | 2017/11/28 02:00 | Momoko Kobori v Xu Liu Sun | 2-6,3-6 |
| ITF Women Toyota | 2017/11/16 01:00 | Junri Namigata v Momoko Kobori | 6-4,6-3 |
| ITF Women Toyota | 2017/11/14 04:55 | Agnes Bukta v Momoko Kobori | 1-6,5-7 |