Stadium: Court 5 Round: 25
| ITF Women Launceston Qual | 2018/02/04 04:10 | Olivia Tjandramulia v Risa Ushijima | 6-2,7-6 |
| ITF Women Fukuoka | 2018/05/10 01:00 | Olivia Tjandramulia v Ksenia Lykina | 4-6,1-6 |
| ITF Women Fukuoka | 2018/05/09 05:45 | Olivia Tjandramulia v Miyabi Inoue | 7-6,6-4 |
| ITF Women Fukuoka Qual | 2018/05/08 01:00 | Olivia Tjandramulia v Aiko Yoshitomi | 6-2,6-3 |
| ITF Women Fukuoka Qual | 2018/05/07 01:00 | Olivia Tjandramulia v Chinatsu Shimizu | 7-5,6-3 |
| ITF Women Fukuoka Qual | 2018/05/06 02:40 | Olivia Tjandramulia v Michika Ozeki | 6-2,7-6 |
| WTA Anning | 2018/05/02 03:00 | Olivia Tjandramulia v Irina Khromacheva | 6-3,0-6,2-6 |
| WTA Anning | 2018/05/01 06:15 | Fangzhou Liu v Olivia Tjandramulia | 2-6,1-6 |
| ITF Women Quanzhou Qual | 2018/04/22 03:00 | Ao Gai v Olivia Tjandramulia | 6-3,6-2 |
| ITF Women Osaka | 2018/04/11 02:45 | Risa Ushijima v En Shuo Liang | 1-6,4-6 |
| ITF Women Osaka Qual | 2018/04/09 01:00 | Ange Oby Kajuru v Risa Ushijima | 3-6,2-6 |
| ITF Women Osaka Qual | 2018/04/08 02:00 | Mayuka Aikawa v Risa Ushijima | 4-6,1-6 |
| ITF Women Kashiwa Qual | 2018/04/01 00:30 | Karman Kaur Thandi v Risa Ushijima | 6-3,6-1 |
| ITF Women Kofu | 2018/03/28 01:00 | Karman Kaur Thandi v Risa Ushijima | 6-3,6-3 |
| ITF Women Kofu Qual | 2018/03/26 04:40 | Natsumi Koshino v Risa Ushijima | 2-6,6-4,2-6 |
| ITF Women Kofu Qual | 2018/03/25 04:00 | Suzuka Furukawa v Risa Ushijima | 3-6,0-6 |
| ITF Women Kofu Qual | 2018/03/24 07:00 | Robu Kajitani v Risa Ushijima | 0-6,7-6,2-6 |