| ITF W15莫纳斯提尔 | 12/16 11:25 | 26 | Sofia Costoulas v 汉恩•范德温克尔 | 3-6,1-6 | |
| ITF W15莫纳斯提尔 | 12/14 09:00 | 25 | 辛哈•克劳斯 v Sofia Costoulas | 0-6,2-6 | |
| ITF W15旺费尔塞博莱 | 08/25 15:25 | 25 | Sofia Costoulas v 卡洛塔•马丁内斯•西雷兹 | 3-6,2-6 | |
| ITF W15埃尔维特 | 08/17 11:00 | 25 | Sofia Costoulas v 卡罗莱纳•库尔 | 6-0,4-6,4-6 | |
| ITF W25科克赛德 | 08/10 13:40 | 25 | 安琪拉•菲塔•博鲁达 v Sofia Costoulas | 6-3,6-2 | |
| ITF W25德南 | 06/16 08:00 | 25 | 达莉拉•斯皮泰里 v Sofia Costoulas | 6-2,6-1 | |
| ITF W15安塔利亚 | 03/17 13:10 | 25 | 波连娜∙勒基娜 v Sofia Costoulas | 4-6,6-3,6-3 | |
| ITF W15安塔利亚 | 03/10 07:00 | 25 | 约翰娜 Markova v Sofia Costoulas | 6-2,0-6,6-4 | |
| ITF W15安塔利亚 | 03/04 09:10 | 26 | Sofia Costoulas v 努丽娅•布兰卡乔 | 0-6,2-6 | |
| ITF W15安塔利亚 | 03/03 10:05 | 25 | 迪娅•赫迪泽拉斯 v Sofia Costoulas | 6-2,3-6,1-6 | |
| ITF W15沙姆沙伊赫 | 02/12 08:00 | 25 | 马加里•科姆普恩 v Sofia Costoulas | 已取消 | |
| ITF W15沙姆沙伊赫 | 02/11 10:30 | 26 | Sofia Costoulas v 纳菲莎•贝尔贝罗维奇 | 2-6,2-6 | |
| ITF W15沙姆沙伊赫 | 02/10 11:25 | 25 | 劳伦•普罗克特 v Sofia Costoulas | 0-6,1-6 | |
| ITF W15沙姆沙伊赫 | 02/07 08:00 | 29 | Sofia Costoulas v 马加里•科姆普恩 | 3-6,2-6 | |
| ITF W15沙姆沙伊赫 | 02/06 08:00 | 28 | Sofia Costoulas v 胡斯蒂娜•米库斯凯特 | 6-4,5-7,6-4 | |
| ITF W15沙姆沙伊赫 | 02/05 08:00 | 27 | 京花冈村 v Sofia Costoulas | 6-2,4-6,2-6 | |
| ITF W15沙姆沙伊赫 | 02/04 08:00 | 26 | Sofia Costoulas v 瀬間詠里花 | 6-1,6-3 | |
| ITF W15沙姆沙伊赫 | 02/03 08:00 | 25 | Lucie Havlickova v Sofia Costoulas | 2-6,6-7 | |
| ITF W15帕扎尔吉克 | 10/30 09:45 | 27 | 埃丽卡•安德烈耶娃 v Sofia Costoulas | 6-1,6-3 | |
| ITF W15帕扎尔吉克 | 10/29 09:35 | 26 | Vlada Katic v Sofia Costoulas | 弃权 | |
| ITF W15帕扎尔吉克 | 10/27 11:50 | 25 | Sofia Costoulas v 茱莉亚 Stamatova | 6-3,6-2 |
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.