Stadium: Court 1 Round: 26
| ITF Women Montreux | 2018/09/04 09:30 | Osaka, Mari v Kilnarova, Monika | 6-2,6-1 |
| ITF Women Budapest | 2018/08/25 12:40 | Osaka, Mari v Marfutina, Maria | 1-6,2-6 |
| ITF Women Braunschweig | 2018/08/22 09:00 | Zarycka, Anastatsia v Osaka, Mari | 6-4,7-5 |
| ITF Women Porto | 2018/07/24 09:30 | Sabino, Lisa v Osaka, Mari | 6-2,6-1 |
| WTA Bucharest Qual | 2018/07/14 11:15 | Claire Liu v Osaka, Mari | 6-0,3-6,6-4 |
| ITF Women Denain | 2018/07/06 09:00 | Bolsova Zadoinov, Aliona v Osaka, Mari | 6-1,6-4 |
| ITF Women Denain | 2018/07/05 11:05 | Lemoine, Quirine v Osaka, Mari | 4-6,0-6 |
| ITF Women Denain | 2018/07/04 08:30 | Osaka, Mari v Momoko Kobori | 6-1,6-1 |
| ITF Women Montreux | 2018/09/05 08:00 | Ferrando, Cristiana v Martina Trevisan | 4-6,6-3,3-6 |
| US Open Women | 2018/08/24 15:00 | Martina Trevisan v Kathinka Von Deichmann | 4-6,3-6 |
| US Open Women | 2018/08/23 16:40 | Varvara Lepchenko v Martina Trevisan | 2-6,6-1,5-7 |
| US Open Women | 2018/08/21 20:30 | Martina Trevisan v Karatantcheva, Sesil | 6-3,2-6,6-4 |
| Vancouver, Singles W-WITF-CAN-01A | 2018/08/18 22:00 | Doi, Misaki v Martina Trevisan | 6-4,7-5 |
| Vancouver, Singles W-WITF-CAN-01A | 2018/08/17 22:30 | Martina Trevisan v Rebecca Marino | 2-6,6-2,7-6 |
| Vancouver, Singles W-WITF-CAN-01A | 2018/08/16 21:10 | Arantxa Rus v Martina Trevisan | 2-6,2-6 |
| Vancouver, Singles W-WITF-CAN-01A | 2018/08/15 18:50 | Magdalena Frech v Martina Trevisan | 2-6,7-6,0-6 |