| Matchs amicaux U18 | 2018/07/10 09:30 | Anil, Cemre v Boualem, Josephine | 6-2,6-1 |
| ITF Women Gyeongsan | 2018/06/13 01:00 | Boualem, Josephine v Haine Ogata | 6-3,2-6,2-6 |
| ITF Women Sangju | 2018/06/06 01:00 | Eunhye Lee v Boualem, Josephine | 6-1,6-1 |
| ITF Women Hua Hin Qual | 2018/05/27 02:30 | Sowjanya Bavisetti v Boualem, Josephine | 6-2,6-3 |
| ITF Women Tunis Qual | 2018/04/07 08:30 | Takamura, Satsuki v Boualem, Josephine | 6-1,6-1 |
| ITF Women Heraklion | 2018/03/30 09:15 | Boualem, Josephine v Kilnarova, Monika | 1-6,0-6 |
| ITF Women Heraklion | 2018/03/29 09:10 | Emily Appleton v Boualem, Josephine | 5-7,4-6 |
| ITF Women Heraklion | 2018/03/27 08:35 | Spyrou, Zoi v Boualem, Josephine | 0-6,0-6 |