| ITF W35 Sunderland | 01/21 10:00 | - | [303] Sofia Costoulas v Klaudija Bubelyte [492] | 5-6 | |
| ITF W100 Dubai | 12/07 08:35 | 28 |
[298] Sofia Costoulas v
Jodie Burrage
[238] 
|
4-6,3-6 | |
| ITF W100 Dubai | 12/06 08:45 | 27 |
[264] Tatiana Prozorova
v
Sofia Costoulas [298] |
6-4,5-7,2-6 | |
| ITF W100 Dubai | 12/05 07:00 | 26 | [347] Evialina Laskevich v Sofia Costoulas [298] | 3-6,6-1,3-6 | |
| ITF W100 Dubai | 12/03 05:55 | 25 |
[298] Sofia Costoulas v
Arianne Hartono
[144] 
|
6-4,6-2 | |
| ITF W100 Dubai | 12/02 06:00 | 54 | [298] Sofia Costoulas v Anastasia Zolotareva [439] | 6-2,6-1 | |
| ITF W100 Dubai | 12/01 06:00 | 54 | Sofia Costoulas v Anna Snigireva | 6-4,6-1 | |
| ITF W75 Carrara | 11/28 01:00 | 26 | Ying Zhang v Sofia Costoulas | 6-2,6-3 | |
| ITF W75 Carrara | 11/27 00:00 | 25 | [291] Ankita Raina v Sofia Costoulas [278] | 3-6,2-6 | |
| ITF W50 Caloundra | 11/24 05:30 | 28 |
[190] Priscilla Hon
v
Sofia Costoulas [291] |
6-4,6-4 | |
| ITF W50 Caloundra | 11/24 00:00 | 27 | Vaidehi Chaudhari v Sofia Costoulas | Walkover | |
| ITF W50 Caloundra | 11/22 22:55 | 26 | [323] Funa Kozaki v Sofia Costoulas [291] | 3-6,2-6 | |
| ITF W50 Caloundra | 11/21 02:45 | 25 |
[369] Lizette Cabrera
v
Sofia Costoulas [291] |
5-7,3-6 | |
| Billie Jean King Cup | 11/17 04:00 | 64 |
[102] Xiyu Wang
v
Sofia Costoulas [290] |
5-7,5-7 | |
| ITF W35 Villeneuve d'Ascq | 11/08 16:55 | 28 | [368] Tiantsoa S R Rajaonah v Sofia Costoulas [287] | 6-2,6-1 | |
| ITF W35 Villeneuve d'Ascq | 11/07 14:05 | 27 | Jana Otzipka v Sofia Costoulas | 6-4,6-7,0-6 | |
| ITF W35 Villeneuve d'Ascq | 11/06 11:00 | 26 | Lia Karatancheva v Sofia Costoulas | 2-6,5-7 | |
| ITF W35 Villeneuve d'Ascq | 11/05 09:00 | 25 | Alice Robbe v Sofia Costoulas | 3-6,3-6 | |
| ITF W35 Loughborough | 10/30 12:55 | 26 | Ranah Akua Stoiber v Sofia Costoulas | 6-3,6-3 | |
| ITF W35 Loughborough | 10/29 15:25 | 25 | Brooke Black v Sofia Costoulas | 5-7,7-5,2-6 | |
| ITF W35 Faro | 10/17 16:20 | 26 |
[465] Malene Helgo
v
Sofia Costoulas [283] |
6-1,6-2 | |
| ITF W35 Faro | 10/16 16:40 | 25 | Emily Seibold v Sofia Costoulas | 0-6,2-6 | |
| ITF W35 Joue-Les-Tours | 10/08 07:30 | 25 | Yuliya Hatouka v Sofia Costoulas | 6-4,6-2 | |
| WTA Bucharest | 09/08 08:00 | 14 |
[379] Nicole Fossa Huergo
v
Sofia Costoulas [279] |
Retired | |
| WTA Montreux | 09/02 13:25 | 19 |
[245] Anouk Koevermans
v
Sofia Costoulas [279] |
6-1,6-3 | |
| WTA Montreux | 09/01 10:30 | 14 | [477] Weronika Falkowska v Sofia Costoulas [279] | 3-6,6-0,1-6 | |
| ITF W50 Meerbusch | 08/29 10:55 | 26 | [339] Kamilla Bartone v Sofia Costoulas [279] | 6-3,3-6,7-6 | |
| ITF W50 Meerbusch | 08/28 08:30 | 25 | Anna Linn Puls v Sofia Costoulas | 4-6,3-6 | |
| ITF W50 Zagreb | 08/07 09:40 | 25 |
[418] Tara Wurth
v
Sofia Costoulas [273] |
6-2,6-4 | |
| ITF W35 Koge | 07/30 09:10 | 25 | Sofia Costoulas v Rebecca Munk Mortensen | 4-6,3-6 |
Wikipedia - Sofia Costoulas
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.