| Puchar Billie Jean King | 04/13 19:05 | 64 | Emma Navarro v Sofia Costoulas | CANC | |
| Puchar Billie Jean King | 04/12 22:00 | 64 | [5] Jessica Pegula v Sofia Costoulas [279] | 4-6,6-2,6-3 | |
| ITF - Kashiwa W50 | 04/05 03:15 | 27 | [356] Ya-Hsuan Lee v Sofia Costoulas [285] | 6-1,6-2 | |
| ITF - Kashiwa W50 | 04/04 03:30 | 26 | [285] Sofia Costoulas v Priscilla Hon [189] | 6-2,6-2 | |
| ITF - Kashiwa W50 | 04/02 03:40 | 25 | [285] Sofia Costoulas v Sohyun Park [299] | 6-2,6-2 | |
| ITF - Kofu W50 | 03/28 03:10 | 26 | [286] Sofia Costoulas v Destanee Aiava [196] | 3-6,4-6 | |
| ITF - Kofu W50 | 03/27 04:00 | 25 | Sofia Costoulas v Rin Nakagawara | 6-1,6-2 | |
| ITF - Hinode W15 | 03/23 01:00 | 28 | Sofia Costoulas v Maegan Manasse | 2-6,3-6 | |
| ITF - Hinode W15 | 03/22 00:55 | 27 | Sofia Costoulas v Dabin Kim | 3-6,6-3,6-0 | |
| ITF - Hinode W15 | 03/21 04:20 | 26 | Sofia Costoulas v Kisa Yoshioka | 6-0,6-3 | |
| ITF - Hinode W15 | 03/20 05:00 | 25 | Sofia Costoulas v Yui Chikaraishi | 6-0,6-2 | |
| ITF - Santo Domingo W35 | 03/13 13:25 | 25 | [279] Sofia Costoulas v Maria F H Gonzalez [205] | 6-0,3-6,3-6 |
Sofia Costoulas (ur. 2 kwietnia 2005) – belgijska tenisistka.