 Italy: W35 Solarino 2 - Doubles - Main |
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| Final | Costoulas S./Hobgarski K. | Hruncakova V./Kuzmova K. | 1:2 (7:64, 4:6, 5:10) | details | 15.03.2025 |
| Semi-finals | Costoulas S./Hobgarski K. | Raggi A./Turini V. | 2:0 (7:64, 6:4) | details | 14.03.2025 |
| Quarter-finals | Grammatikopoulou V./Tsygourova K. | Costoulas S./Hobgarski K. | 0:2 (1:6, 2:6) | details | 13.03.2025 |
| 1/8-finals | Pastikova J./Valdmannova V. | Costoulas S./Hobgarski K. | 0:2 (3:6, 4:6) | details | 12.03.2025 |
 Finland: W35 Helsinki - Doubles - Main |
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| Quarter-finals | Costoulas S./Drazic M. | Bakhmutkina P./Lee C. Y. | 0:2 (5:7, 1:6) | details | 06.03.2025 |
| 1/8-finals | Rajecki A./Stoiber R. A. | Costoulas S./Drazic M. | 0:2 (3:6, 1:6) | details | 04.03.2025 |
 United Kingdom: W35 Manchester - Doubles - Main |
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| Quarter-finals | Arseneault A./Rogers A. S. | Costoulas S./Wong Hong Yi C. | 2:1 (4:6, 6:3, 10:8) | details | 19.02.2025 |
| 1/8-finals | Costoulas S./Wong Hong Yi C. | Davies M./Maloney E. | 2:0 (6:0, 6:3) | details | 18.02.2025 |
| United Kingdom: W50 Birmingham - Doubles - Main |
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| Quarter-finals | Costoulas S./Ngounoue C. | Chong E./Wong Hong Yi C. | 1:2 (3:6, 7:5, 9:11) | details | 13.02.2025 |
| 1/8-finals | Costoulas S./Ngounoue C. | Hutchinson H./McDonald E. | 2:0 (6:4, 7:63) | details | 11.02.2025 |
| United Kingdom: W35 Sunderland - Doubles - Main |
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| Quarter-finals | Costoulas S./Vlasselaer C. | Park S./Wong Hong Yi C. | 1:2 (6:3, 4:6, 7:10) | details | 23.01.2025 |
| 1/8-finals | Paszek T./Primorac I. | Costoulas S./Vlasselaer C. | 0:2 (3:6, 3:6) | details | 22.01.2025 |
 United Arab Emirates: W100 Dubai - Doubles - Main |
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| 1/8-finals | Charaeva A./Reyngold E. | Costoulas S./Yamalapalli S. | 2:0 (6:4, 6:3) | details | 03.12.2024 |
 Australia: W75 Carrara - Doubles - Main |
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| Semi-finals | Barry M./Costoulas S. | Hayashi E./Morisaki K. | 0:2 (4:6, 3:6) | details | 29.11.2024 |
| Quarter-finals | Barry M./Costoulas S. | Yoshioka K./Yuan C. | 2:0 (7:5, 6:2) | details | 28.11.2024 |
| 1/8-finals | Barry M./Costoulas S. | Nagata A./Yamazaki I. | 2:0 (6:3, 6:2) | details | 26.11.2024 |
 World: Billie Jean King Cup - World Group - Doubles - Relegation - Play Offs |
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| | Guo H./Jiang X. | Costoulas S./Vandromme J. | CAN. | details | 17.11.2024 |
| | Guo H./Jiang X. | Costoulas S./Vandewinkel H. | 2:0 (7:63, 6:3) | details | 17.11.2024 |
France: W35 Villeneuve d'Ascq - Singles - Main
