Stadium: Court 5 Round: 25
| ITF Women Sangju | 2018/06/08 02:00 | Chisa Hosonuma v Ho Ching Wu | 2-6,3-6 |
| ITF Women Sangju | 2018/06/07 01:00 | Aiko Yoshitomi v Chisa Hosonuma | 5-7,3-6 |
| ITF Women Sangju | 2018/06/06 03:25 | Chisa Hosonuma v Kwan Yau Ng | 2-6,6-1,6-3 |
| ITF Women Karuizawa | 2018/05/22 02:35 | Chisa Hosonuma v Ari Matsumoto | 5-7,2-6 |
| ITF Women Kurume Qual | 2018/05/14 01:00 | Chisa Hosonuma v Michika Ozeki | 6-7,2-6 |
| ITF Women Kurume Qual | 2018/05/13 00:30 | Chisa Hosonuma v Naoko Eto | 6-0,6-0 |
| ITF Women Fukuoka Qual | 2018/05/07 03:05 | Rika Fujiwara v Chisa Hosonuma | 7-5,6-4 |
| ITF Women Fukuoka Qual | 2018/05/06 05:25 | Chisa Hosonuma v Mihoki Miyahara | 6-1,7-6 |
| ITF Women Gyeongsan Qual | 2018/06/12 01:00 | Yeong Won Jeong v Mami Hasegawa | 6-4,7-6 |
| ITF Women Gyeongsan Qual | 2018/06/11 02:00 | Yeong Won Jeong v Da Hye Kim | 6-1,7-6 |
| ITF Women Sangju Qual | 2018/06/04 01:00 | Yeong Won Jeong v Eri Shimizu | 5-7,4-6 |
| ITF Women Changwon Qual | 2018/05/20 03:00 | Erin Routliffe v Yeong Won Jeong | 6-1,6-2 |
| ITF Women Incheon Qual | 2018/05/14 03:30 | Yeong Won Jeong v Erin Routliffe | 4-6,0-6 |
| ITF Women Incheon Qual | 2018/05/13 03:30 | Yeong Won Jeong v Eunji Lim | 6-3,6-3 |
| ITF Women Goyang | 2018/05/09 05:45 | Yeong Won Jeong v Mayo Hibi | 0-6,3-6 |
| ITF Women Sharm El Sheikh | 2017/11/15 14:00 | Yeong Won Jeong v Shalimar Talbi | 6-3,4-6,3-6 |