How old is Sofia Costoulas?

Sofia Costoulas is 21 years old, born on April 2, 2005.

Which country is Sofia Costoulas from?

Sofia Costoulas is from Belgium.

How many Grand Slams has Sofia Costoulas won?

Sofia Costoulas has not won a Grand Slam title.

How many WTA 1000 titles has Sofia Costoulas won?

Sofia Costoulas has not won a WTA 1000 title.

What is Sofia Costoulas' highest WTA ranking?

Sofia Costoulas' career-high WTA singles ranking is world No. 134, first achieved on March 30, 2026.

What is Sofia Costoulas' career win-loss record?

Sofia Costoulas has a career WTA singles record of 2 wins and 3 losses (40.0%).

How much career prize money has Sofia Costoulas earned?

Sofia Costoulas has earned at least $365,465 in career prize money from professional tennis.

When did Sofia Costoulas play professional tennis?

Sofia Costoulas turned professional in 2026 and was active through 2026.

Who is Sofia Costoulas' biggest rival?

Sofia Costoulas' most frequent opponent is Tereza Valentova, with a head-to-head record of 0–1 across 1 meeting.

Sofia Costoulas

BEL Age 21 Pro since 2026

Ranking

157

Career high

134 (Mar 30, 2026)

Elo peak

1617 (40.1%ile)

Career record

2–3 (40.0%)

Career titles

Prize money

$365,465

YTD W-L

2–3

Recent WTA Matches full match log →

Qualifying matches are shown here but excluded from main-draw summaries and leaderboards.

Date	Tournament	Category	Round	Surface	Opponent	Score	Result	H2H	Match
Jul 14, 2026	Athens	WTA 250	R32	Hard	Tereza Valentova #49	1-6 2-6	L	H2H	Match data
Jun 23, 2026	Wimbledon	Grand Slam	Q3 Q	Grass	Storm Hunter #185	5-7 4-6	L	H2H	Match data
May 24, 2026*	Roland Garros	Grand Slam	Q3 Q	Clay	Hanyu Guo #168	3-6 4-6	L	H2H	Match data
May 24, 2026*	Roland Garros	Grand Slam	Q3 Q	Clay	Mai Hontama #221	6-4 6-3	W	H2H	Match data
May 18, 2026	Roland Garros	Grand Slam	Q3 Q	Clay	Tereza Mrdeza	6-0 6-2	W	H2H	Match data

Rivals full rivalries list →

Opponent	W	L	M	Last Played	H2H
Tereza Valentova	0	1	1	Jul 14, 2026	H2H
Hanne Vandewinkel	0	1	1	Mar 31, 2026	H2H
Iva Jovic	0	1	1	Jan 9, 2026	H2H
Kaitlin Quevedo	1	0	1	Jan 7, 2026	H2H
Whitney Osuigwe	1	0	1	Jan 5, 2026	H2H

Career Results

Season	Age	Type	W	L	M	Win %	Start Rank	End Rank
2025	20	Qualifying Q	0	1	1	0.0%	—	—
2026	21	Qualifying Q	4	3	7	57.1%	—	—
2026	21	WTA	2	3	5	40.0%	163	157
Career		—	2	3	5	40.0%	—	—

Career Results by Surface

Season	Age	Type	Hard				Clay				Grass				Total
Season	Age	Type	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %
2025	20	Qualifying Q	—	—	—	—	0	1	1	0.0%	—	—	—	—	0	1	1	0.0%
2026	21	Qualifying Q	2	1	3	66.7%	2	1	3	66.7%	0	1	1	0.0%	4	3	7	57.1%
2026	21	WTA	2	2	4	50.0%	0	1	1	0.0%	—	—	—	—	2	3	5	40.0%
Career	—	—	2	2	4	50.0%	0	1	1	0.0%	—	—	—	—	2	3	5	40.0%

Career Results by Opponent Rank

Season	Age	1-10				11-30				31-100				100+				Total
Season	Age	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %
2026	21	0	0	—	—	0	0	—	—	0	3	3	0.0%	2	0	2	100.0%	2	3	5	40.0%
Career		0	0	—	—	0	0	—	—	0	3	3	0.0%	2	0	2	100.0%	2	3	5	40.0%

Advanced Stats

Season	Age	ELO	ELO %	Hard %	Clay %	Grass %	Set Win %	Set Margin	SoS %	Deep Run %	Dec. Set W%	TB L	TB W%
2024	19	1481	36	—	—	—	—	—	10	—	—	0	—
2025	20	1524	66	—	—	—	—	—	36	—	—	0	—
2026	21	1568	74	74	—	—	41.7%	-0.27	50	33	—	1	—
Career		1568	74	74	—	—	41.7%	-0.27	50	33	—	1	—

Tournament Results by Category

Results show best round reached per tournament per season.

Grand Slams

Season	Age	AO	RG	W
2025	20	—	Q3	—
2026	21	Q3	Q3	Q3

WTA 250

Season	Age	AUC	ATH	BOG
2026	21	QF	R32	R32

WTA Ranking History full ranking history →

Current rank

157

Career high

134

Career-high date

Mar 30, 2026

First top 100

—

First top 50

—

First top 20

—

First top 10

—

Ranking History Matrix

Season	Age	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2023	18	—	—	—	—	—	—	—	—	—	297	—	—
2024	19	—	—	—	—	—	—	—	—	277	—	—	—
2025	20	306	298	269	212	210	181	188	181	165	152	152	163
2026	21	143	141	134	151	144	156	157	—	—	—	—	—

Similar Players

Other WTA players ranked by a composite similarity score over country, era, and peak rank.

Player	Country	Peak Rank	Peak Elo	Grand Slams	Titles	M	W	L	Win %	Active Years	Match Log
Michele Gurdal	BEL	—	1,714	0	3	225	90	135	40.0%	1970-1981	Match log
Caroline Maes	BEL	151	1,520	0	0	7	2	5	28.6%	2004-2008	Match log
Margaret Court	AUS	—	2,487	11	95	680	616	64	90.6%	1968-1977	Match log
Kerry Reid	AUS	—	2,215	1	22	831	586	245	70.5%	1968-1985	Match log
Betty Stove	NED	—	2,165	0	7	717	413	304	57.6%	1969-1983	Match log
Julie Heldman	USA	—	2,133	0	21	540	381	159	70.6%	1968-1975	Match log
Francoise Durr	FRA	—	2,144	0	9	608	373	235	61.3%	1968-1981	Match log
Helga Masthoff	FRG	—	2,084	0	49	484	373	111	77.1%	1968-1980	Match log
Gail Sherriff	FRA	—	1,978	0	41	487	342	145	70.2%	1968-1982	Match log
Olga Morozova	—	—	2,189	0	38	436	328	108	75.2%	1968-1980	Match log
Nancy Richey	USA	—	2,236	1	28	433	324	109	74.8%	1968-1978	Match log
Lesley Hunt	—	—	1,933	0	10	550	306	244	55.6%	1968-1979	Match log

Frequently Asked Questions

How old is Sofia Costoulas?: Sofia Costoulas is 21 years old, born on April 2, 2005.
Which country is Sofia Costoulas from?: Sofia Costoulas is from Belgium.
How many Grand Slams has Sofia Costoulas won?: Sofia Costoulas has not won a Grand Slam title.
How many WTA 1000 titles has Sofia Costoulas won?: Sofia Costoulas has not won a WTA 1000 title.
What is Sofia Costoulas' highest WTA ranking?: Sofia Costoulas' career-high WTA singles ranking is world No. 134, first achieved on March 30, 2026.
What is Sofia Costoulas' career win-loss record?: Sofia Costoulas has a career WTA singles record of 2 wins and 3 losses (40.0%).
How much career prize money has Sofia Costoulas earned?: Sofia Costoulas has earned at least $365,465 in career prize money from professional tennis.
When did Sofia Costoulas play professional tennis?: Sofia Costoulas turned professional in 2026 and was active through 2026.
Who is Sofia Costoulas' biggest rival?: Sofia Costoulas' most frequent opponent is Tereza Valentova, with a head-to-head record of 0–1 across 1 meeting.