Sofia Costoulas

Country (sports)	Belgium
Born	(2005-04-02) 2 April 2005 (age 19) Genk, Belgium
Plays	Right-handed (two-handed backhand)
Prize money	US$ 52,601
Singles
Career record	85–60 (58.6%)
Career titles	1 ITF
Highest ranking	No. 248 (8 January 2024)
Current ranking	No. 274 (26 February 2024)
Doubles
Career record	49–30 (62.0%)
Career titles	3 ITF
Highest ranking	No. 229 (25 September 2023)
Current ranking	No. 247 (26 February 2024)
Last updated on: 26 February 2024.

Sofia Costoulas (born 2 April 2005) is a Belgian tennis player.

Costoulas has a Greek–Congolese father and a Belgian mother.^[1]

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.^[2] She had already reached the Wimbledon junior doubles final in 2021.

Junior career

Grand Slam performance

Singles:

• Australian Open: F (2022)
• French Open: 2R (2021)
• Wimbledon: 2R (2021)
• US Open: 3R (2021, 2022)

Doubles:

• Australian Open: QF (2020)
• French Open: SF (2022)
• Wimbledon: F (2021)
• US Open: 2R (2022)

ITF Circuit finals

Singles: 7 (2 titles, 5 runner-ups)

Result	W–L	Date	Tournament	Tier	Surface	Opponent	Score
Loss	0–1	Feb 2021	ITF Sharm El Sheikh, Egypt	W15	Hard	Magali Kempen	3–6, 2–6
Loss	0–2	Dec 2021	ITF Monastir, Tunisia	W15	Hard	Eudice Chong	6–3, 4–6, 6–7(5)
Loss	0–3	Jan 2022	ITF Monastir, Tunisia	W15	Hard	Akvilė Paražinskaitė	5–7, 2–6
Loss	0–4	Jun 2022	ITF Gurugram, India	W25	Hard	Karman Thandi	4–6, 6–2, 1–6
Win	1–4	May 2023	ITF Feld am See, Austria	W25	Clay	Lara Salden	6–3, 6–1
Loss	1–5	Nov 2023	ITF Limassol, Cyprus	W25	Hard	Hanne Vandewinkel	2–6, 6–4, 4–6
Win	2–5	Dec 2023	ITF Limassol, Cyprus	W25	Hard	Silvia Ambrosio	6–1, 6–3

Doubles: 9 (3 titles, 6 runner-ups)

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Loss	1–0	Feb 2022	ITF Monastir, Tunisia	W15	Hard	Clervie Ngounoue	Kristina Dmitruk Maria Sholokhova	6–3, 2–6, [5–10]
Win	1–1	Oct 2022	ITF Hua Hin, Thailand	W25	Hard	Punnin Kovapitukted	Risa Ushijima Wi Hwi-won	6–1, 6–2
Loss	1–2	Mar 2023	ITF Pretoria, South Africa	W60	Hard	Dalila Spiteri	Mai Hontama Alice Tubello	3–6, 3–6
Loss	1–3	May 2023	ITF Feld am See, Austria	W25	Clay	Kayla Cross	Denisa Hindová Chiara Scholl	2–6, 0–6
Win	2–3	Jun 2023	ITF Troisdorf, Germany	W25	Clay	Lara Salden	Chiara Scholl Tilwith Di Girolami	7–6(4), 6–4
Win	3–3	Jun 2023	ITF Tainan, Taiwan	W25	Clay	Li Yu-yun	Lee Ya-hsin Lee Ya-hsuan	6–4, 6–4
Loss	3–4	Jul 2023	ITF Corroios, Portugal	W25	Hard	Lulu Sun	Talia Gibson Petra Hule	3–6, 6–3, [6–10]
Loss	3–5	Sep 2023	ITF Leiria, Portugal	W25	Hard	Jenny Dürst	Francisca Jorge Matilde Jorge	5–7, 6–7(5)
Loss	3–6	Feb 2024	ITF Pretoria, South Africa	W50	Hard	Hanne Vandewinkel	Lina Glushko Gabriela Knutson	6–7(5), 6–7(4)

Junior Grand Slam tournament finals

Girls' singles: 1 (runner-up)

Result	Year	Tournament	Surface	Opponent	Score
Loss	2022	Australian Open	Hard	Petra Marčinko	5–7, 1–6

Girls' doubles: 1 (runner-up)

Result	Year	Tournament	Surface	Partner	Opponents	Score
Loss	2021	Wimbledon	Grass	Laura Hietaranta	Kristina Dmitruk Diana Shnaider	1–6, 2–6