Stadium: Court 3 Round: 25
| ITF Women Florence | 2018/10/16 18:30 | Manon Arcangioli v Kayla Day | 3-6,3-6 |
| ITF Women Clermont-Ferrand | 2018/09/27 09:00 | Tess Sugnaux v Manon Arcangioli | 6-1,6-2 |
| ITF Women Clermont-Ferrand | 2018/09/26 08:00 | Loudmilla Bencheikh v Manon Arcangioli | 4-6,2-6 |
| ITF Women Lisbon | 2018/09/20 16:05 | Tessah Andrianjafitrimo v Manon Arcangioli | 6-3,3-6,6-3 |
| ITF Women Lisbon | 2018/09/19 12:35 | Ana Filipa Santos v Manon Arcangioli | 0-6,0-6 |
| ITF Women Sofia | 2018/09/04 07:30 | Miriam Kolodziejova v Manon Arcangioli | 6-4,6-1 |
| ITF Women Budapest | 2018/08/25 08:00 | Manon Arcangioli v Luca Nagymihaly | 6-7,1-6 |
| ITF Women Koksijde | 2018/08/07 08:00 | Manon Arcangioli v Ludmilla Samsonova | 1-6,2-6 |
| ITF Women Florence | 2018/10/21 17:00 | Mari Osaka v Bianca Andreescu | 4-6,6-2,3-6 |
| ITF Women Florence | 2018/10/20 17:55 | Katie Volynets v Mari Osaka | 2-6,6-4,3-6 |
| ITF Women Florence | 2018/10/19 14:00 | Mari Osaka v Paula Cristina Goncalves | 5-7,6-4,6-1 |
| ITF Women Florence | 2018/10/18 14:00 | Ulrikke Eikeri v Mari Osaka | 1-6,3-6 |
| ITF Women Florence | 2018/10/16 17:55 | Quinn Gleason v Mari Osaka | 1-6,6-7 |
| ITF Women Stockton | 2018/10/04 22:30 | Mari Osaka v Robin Anderson | 5-7,4-6 |
| ITF Women Stockton | 2018/10/03 20:55 | Mari Osaka v Maria Sanchez | 6-1,6-3 |
| WTA Tokyo | 2018/09/15 01:00 | Mari Osaka v Antonia Lottner | 3-6,6-4,3-6 |