| ITF W35那不勒斯 | 01/17 17:10 | 25 | [248] Sofia Costoulas v 维多利亚·奥苏圭 [441] | 3-6,6-2,6-2 | |
| ITF W25利马索尔 | 12/03 09:00 | 29 | [255] Silvia Ambrosio v Sofia Costoulas [296] | 1-6,3-6 | |
| ITF W25利马索尔 | 12/02 08:00 | 28 | [296] Sofia Costoulas v 阿纳斯塔西娅•扎哈罗娃 [192] | 7-6,7-5 | |
| ITF W25利马索尔 | 12/01 08:00 | 27 | [296] Sofia Costoulas v Polina Iatcenko [358] | 7-5,7-5 | |
| ITF W25利马索尔 | 11/30 08:00 | 26 | [296] Sofia Costoulas v 汉恩•范德温克尔 [343] | 7-5,6-1 | |
| ITF W25利马索尔 | 11/29 08:00 | 25 | Sofia Costoulas v 安吉丽娜•维尔格斯 | 3-6,7-6,6-0 | |
| ITF W25利马索尔 | 11/26 09:00 | 29 | [330] 汉恩•范德温克尔 v Sofia Costoulas [291] | 6-2,4-6,6-4 | |
| ITF W25利马索尔 | 11/25 08:00 | 28 | [291] Sofia Costoulas v 阿纳斯塔西娅•扎哈罗娃 [192] | 6-2,7-5 | |
| ITF W25利马索尔 | 11/24 12:10 | 27 | Sofia Costoulas v 丽贝卡•蒙克•莫腾森 | 6-3,6-2 | |
| ITF W25利马索尔 | 11/23 08:00 | 26 | [291] Sofia Costoulas v Polina Iatcenko [356] | 6-4,6-0 | |
| ITF W25利马索尔 | 11/22 08:00 | 25 | [291] Sofia Costoulas v 维罗妮卡•法尔科夫斯卡 [333] | 6-3,6-2 | |
| ITF W40佩唐日 | 11/17 16:00 | 27 | [101] 奥瑟娜•杜丁 v Sofia Costoulas [297] | 6-2,7-5 | |
| ITF W40佩唐日 | 11/16 08:50 | 26 | Sofia Costoulas v 维罗妮卡·波德雷兹 | 6-3,3-6,6-1 | |
| ITF W40佩唐日 | 11/15 12:55 | 25 | [267] 安东尼娅•鲁兹奇 v Sofia Costoulas [297] | 4-6,7-6,1-6 | |
| ITF W60南特 | 10/30 16:05 | 25 | [297] Sofia Costoulas v 娜塔莉娅•斯泰万诺维奇 [185] | 2-6,7-6,4-6 | |
| ITF W80普瓦捷 | 10/26 12:20 | 26 | [111] 安娜莉娜•弗里德萨姆 v Sofia Costoulas [296] | 6-3,6-2 | |
| ITF W80普瓦捷 | 10/24 08:30 | 25 | 马林•绍斯塔克 v Sofia Costoulas | 1-6,7-6,2-6 | |
| ITF W60汉堡 | 10/17 09:10 | 25 | 阿列夫蒂娜•伊布拉吉莫娃 v Sofia Costoulas | 2-6,6-4,6-4 | |
| ITF W40金塔拉戈 | 10/11 09:00 | 25 | [131] 奥利维亚•加德斯基 v Sofia Costoulas [281] | 7-6,6-1 | |
| ITF W25圣塔伦 | 09/27 13:15 | 25 | 劳拉•皮戈斯 v Sofia Costoulas | 已取消 | |
| ITF W25圣塔伦 | 09/27 09:00 | 25 | 阿琳娜•查拉耶娃 v Sofia Costoulas | 6-2,3-6,6-4 | |
| ITF W25休达 | 09/23 12:05 | 28 | [291] Sofia Costoulas v 阿莱娜•法雷 [340] | 6-3,4-6,0-6 | |
| ITF W25休达 | 09/22 09:30 | 27 | 基拉•帕夫洛娃 v Sofia Costoulas | 5-7,3-6 | |
| ITF W25休达 | 09/21 08:00 | 26 | 阿纳斯塔西娅•格雷奇金娜 v Sofia Costoulas | 4-6,2-6 | |
| ITF W25休达 | 09/19 13:30 | 25 | 阿莲达•鲁希提 v Sofia Costoulas | 4-6,6-1,2-6 | |
| ITF W25莱里亚 | 09/14 10:00 | 26 | [288] Sofia Costoulas v 艾娃•格雷罗•阿尔瓦雷斯 [434] | 4-6,6-3,3-6 | |
| ITF W25莱里亚 | 09/13 13:15 | 25 | Sofia Costoulas v Ranah Akua Stoiber | 6-3,6-0 | |
| ITF W25韦尔比耶 | 08/23 08:55 | 25 | [299] Sofia Costoulas v 贝塔•博纳尔迪 [419] | 7-5,5-7,3-6 | |
| ITF W25比斯特里察 | 08/18 11:20 | 27 | [299] Sofia Costoulas v 伊琳卡 D 阿马里耶伊 [438] | 6-7,3-6 | |
| ITF W25比斯特里察 | 08/17 13:05 | 26 | Sofia Costoulas v 杰西卡•皮耶里 | 7-6,6-4 |
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.