| 比利•簡•金盃 | 04/13 19:05 | 64 | 艾瑪•納瓦羅 v Sofia Costoulas | CANC | |
| 比利•簡•金盃 | 04/12 22:00 | 64 | [5] 傑西卡•皮古拉 v Sofia Costoulas [279] | 4-6,6-2,6-3 | |
| ITF W50柏市 | 04/05 03:15 | 27 | [356] 李亞 v Sofia Costoulas [285] | 6-1,6-2 | |
| ITF W50柏市 | 04/04 03:30 | 26 | [285] Sofia Costoulas v 普瑞希拉•賀恩 [189] | 6-2,6-2 | |
| ITF W50柏市 | 04/02 03:40 | 25 | [285] Sofia Costoulas v 朴昭炫 [299] | 6-2,6-2 | |
| ITF W50甲府 | 03/28 03:10 | 26 | [286] Sofia Costoulas v 德斯汀妮 Aiava [196] | 3-6,4-6 | |
| ITF W50甲府 | 03/27 04:00 | 25 | Sofia Costoulas v Rin Nakagawara | 6-1,6-2 | |
| ITF W15日出 | 03/23 01:00 | 28 | Sofia Costoulas v 麥根•瑪納斯 | 2-6,3-6 | |
| ITF W15日出 | 03/22 00:55 | 27 | Sofia Costoulas v 大賓•基姆 | 3-6,6-3,6-0 | |
| ITF W15日出 | 03/21 04:20 | 26 | Sofia Costoulas v Kisa Yoshioka | 6-0,6-3 | |
| ITF W15日出 | 03/20 05:00 | 25 | Sofia Costoulas v Yui Chikaraishi | 6-0,6-2 | |
| ITF W35聖多明哥 | 03/13 13:25 | 25 | [279] Sofia Costoulas v 瑪麗亞 F H 岡薩雷斯 [205] | 6-0,3-6,3-6 |
Sofia Costoulas (born 2 April 2005) is a Belgian tennis player.
Costoulas has a Greek–Congolese father and a Belgian mother.
Costoulas has a career-high singles ranking by the Women's Tennis Association (WTA) of 248 and a best doubles ranking of 229.
On the ITF Junior Circuit, she had a career-high combined ranking of No. 2, achieved on 18 April 2022. She lost the girls' singles final of the 2022 Australian Open to Petra Marčinko. She had already reached the Wimbledon junior doubles final in 2021.