Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF W15 Monastir | 2021/12/16 11:25 | Sofia Costoulas v Hanne Vandewinkel | 3-6,1-6 |
| ITF W15 Monastir | 2021/12/14 09:00 | Sinja Kraus v Sofia Costoulas | 0-6,2-6 |
| ITF W15 Wanfercee-Baulet | 2021/08/25 15:25 | Sofia Costoulas v Carlota Martinez Cirez | 3-6,2-6 |
| ITF W15 Erwitte | 2021/08/17 11:00 | Sofia Costoulas v Carolina Kuhl | 6-0,4-6,4-6 |
| ITF W25 Koksijde | 2021/08/10 13:40 | Angela Fita Boluda v Sofia Costoulas | 6-3,6-2 |
| ITF W25 Denain | 2021/06/16 08:00 | Dalila Spiteri v Sofia Costoulas | 6-2,6-1 |
| ITF W15 Antalya | 2021/03/17 13:10 | Polina Leykina v Sofia Costoulas | 4-6,6-3,6-3 |
| ITF W15 Antalya | 2021/03/10 07:00 | Johana Markova v Sofia Costoulas | 6-2,0-6,6-4 |
| ITF W25 Petange | 2021/11/14 09:45 | Agustina Chlpac v Sinja Kraus | 0-6,2-6 |
| UTR Pro Tennis Series Barcelona Women | 2021/11/07 09:30 | Agustina Chlpac v Daria Krasnova | 6-2,6-7,1-6 |
| UTR Pro Tennis Series Barcelona Women | 2021/11/06 09:15 | Agustina Chlpac v Daniella Dimitrova | 6-1,6-2 |
| UTR Pro Tennis Series Barcelona Women | 2021/11/04 11:30 | Agustina Chlpac v Valeria Avdeeva | 6-4,1-6,2-5 |
| UTR Pro Tennis Series Barcelona Women | 2021/11/03 10:00 | Agustina Chlpac v Elitsa Kostova | 3-6,0-6 |
| UTR Pro Tennis Series Barcelona Women | 2021/11/02 13:30 | Agustina Chlpac v Nina Ugrelidze | 6-4,5-3 |
| UTR Pro Tennis Series Barcelona Women | 2021/11/01 10:30 | Agustina Chlpac v Lucia Aranda Arcas | 6-1,2-6,4-6 |
| UTR Pro Tennis Series Barcelona Women | 2021/10/30 16:30 | Agustina Chlpac v Valeria Avdeeva | 4-6,2-5 |