Stadium: Court 8 Round: 26
| ITF Women Sangju | 2018/06/05 03:50 | Yoshitomi, Aiko v Ahn, Yu Jin | 6-1,6-1 |
| Karuizawa, Singles W-WITF-JPN-10A | 2018/05/22 01:00 | Tammi Patterson v Yoshitomi, Aiko | 6-4,6-4 |
| ITF Women Kurume Qual | 2018/05/15 01:00 | Myers, Abbie v Yoshitomi, Aiko | 6-1,7-6 |
| ITF Women Kurume Qual | 2018/05/13 07:00 | Yoshitomi, Aiko v Ueda, Ramu | 6-3,6-3 |
| ITF Women Fukuoka | 2018/05/09 05:35 | Su Jeong Jang v Yoshitomi, Aiko | 6-1,6-2 |
| ITF Women Fukuoka Qual | 2018/05/08 01:00 | Olivia Tjandramulia v Yoshitomi, Aiko | 6-2,6-3 |
| ITF Women Fukuoka Qual | 2018/05/07 01:00 | Yoshitomi, Aiko v Kishigami, Utaka | 6-1,7-6 |
| ITF Women Fukuoka Qual | 2018/05/06 02:20 | Yoshitomi, Aiko v Takayama, Chihiro | 6-2,6-3 |
| ITF Women Sangju | 2018/06/06 03:25 | Hosonuma, Chisa v Ng, Kwan Yau | 2-6,6-1,6-3 |
| Karuizawa, Singles W-WITF-JPN-10A | 2018/05/22 02:35 | Hosonuma, Chisa v Matsumoto, Ari | 5-7,2-6 |
| ITF Women Kurume Qual | 2018/05/14 01:00 | Hosonuma, Chisa v Michika Ozeki | 6-7,2-6 |
| ITF Women Kurume Qual | 2018/05/13 00:30 | Hosonuma, Chisa v Naoko Eto | 6-0,6-0 |
| ITF Women Fukuoka Qual | 2018/05/07 03:05 | Fujiwara, Rika v Hosonuma, Chisa | 7-5,6-4 |
| ITF Women Fukuoka Qual | 2018/05/06 05:25 | Hosonuma, Chisa v Miyahara, Mihoki | 6-1,7-6 |
| ITF Women Hammamet | 2018/04/18 10:25 | Hosonuma, Chisa v de Bernardi, Clothilde | 7-6,3-6,1-6 |
| ITF Women Tunis Qual | 2018/04/08 08:30 | Anna Bondar v Hosonuma, Chisa | 6-2,6-2 |