How old is Thai-Son Kwiatkowski?

Thai-Son Kwiatkowski is 31 years old, born on February 13, 1995.

Which country is Thai-Son Kwiatkowski from?

Thai-Son Kwiatkowski is from United States.

How tall is Thai-Son Kwiatkowski?

Thai-Son Kwiatkowski is 188 cm / 6'2".

Is Thai-Son Kwiatkowski left-handed or right-handed?

Thai-Son Kwiatkowski plays right-handed.

How many Grand Slams has Thai-Son Kwiatkowski won?

Thai-Son Kwiatkowski has not won a Grand Slam title.

How many Masters 1000 titles has Thai-Son Kwiatkowski won?

Thai-Son Kwiatkowski has not won a Masters 1000 title.

What is Thai-Son Kwiatkowski's highest ATP ranking?

Thai-Son Kwiatkowski's career-high ATP singles ranking is world No. 181, first achieved on February 3, 2020.

What is Thai-Son Kwiatkowski's career win-loss record?

Thai-Son Kwiatkowski has a career ATP singles record of 0 wins and 7 losses (0.0%).

How much career prize money has Thai-Son Kwiatkowski earned?

Thai-Son Kwiatkowski has earned at least $556,915 in career prize money from professional tennis.

When did Thai-Son Kwiatkowski play professional tennis?

Thai-Son Kwiatkowski turned professional in 2017 and was active through 2023.

Who is Thai-Son Kwiatkowski's biggest rival?

Thai-Son Kwiatkowski's most frequent opponent is Soonwoo Kwon, with a head-to-head record of 0–2 across 2 meetings.

Thai-Son Kwiatkowski

USA Age 31 188 cm / 6'2" Plays: Right-Handed Pro 2017–2023

Peak ranking

181 (Feb 3, 2020)

Elo peak

1529 (11.1%ile)

Career record

0–7 (0.0%)

Career titles

Prize money

$556,915

Recent ATP 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
Feb 7, 2026	Nexo Dallas Open	ATP 500	Q1 Q	Hard	Sho Shimabukuro #141	0-6 4-6	L	H2H	Match data
Aug 17, 2025*	Winston-Salem Open	ATP 250	Q1 Q	Clay	Karl Poling #630	6-3 5-7 3-6	L	H2H	Match data
Jul 21, 2025*	Mubadala Citi DC Open	ATP 500	Q1 Q	Hard	Murphy Cassone #185	2-6 4-6	L	H2H	Match data
Aug 18, 2024*	Winston-Salem	ATP 250	Q2 Q	Hard	Strong Kirchheimer #495	3-6 4-6	L	H2H	Match data
Aug 18, 2024*	Winston-Salem	ATP 250	Q1 Q	Hard	Skander Mansouri #610	7-6(7) 4-6 7-6(5)	W	H2H	Match data

Rivals full rivalries list →

Opponent	L	M	Last Played	H2H
Soonwoo Kwon	2	2	Feb 25, 2021	H2H
Luca Van Assche	1	1	Aug 22, 2023	H2H
Nick Kyrgios	1	1	Jul 29, 2019	H2H
James Duckworth	1	1	Aug 1, 2018	H2H
Mischa Zverev	1	1	Aug 30, 2017	H2H

Career Results

Season	Age	Type	W	L	M	Win %	Start Rank	End Rank
2016	21	Qualifying Q	0	1	1	0.0%	—	—
2017	22	ATP	0	2	2	0.0%	573	520
2018	23	Qualifying Q	3	2	5	60.0%	—	—
2018	23	ATP	0	1	1	0.0%	617	296
2019	24	Qualifying Q	2	4	6	33.3%	—	—
2019	24	ATP	0	1	1	0.0%	275	243
2020	25	Qualifying Q	0	2	2	0.0%	—	—
2020	25	ATP	0	1	1	0.0%	253	212
2021	26	Qualifying Q	4	7	11	36.4%	—	—
2021	26	ATP	0	1	1	0.0%	213	221
2022	27	Qualifying Q	0	2	2	0.0%	—	—
2023	28	Qualifying Q	3	3	6	50.0%	—	—
2023	28	ATP	0	1	1	0.0%	1,488	322
2024	29	Qualifying Q	1	5	6	16.7%	—	—
2025	30	Qualifying Q	0	2	2	0.0%	—	—
2026	31	Qualifying Q	0	1	1	0.0%	—	—
Career		—	0	7	7	0.0%	—	—

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 %
2016	21	Qualifying Q	0	1	1	0.0%	—	—	—	—	—	—	—	—	0	1	1	0.0%
2017	22	ATP	0	1	1	0.0%	—	—	—	—	0	1	1	0.0%	0	2	2	0.0%
2018	23	Qualifying Q	3	2	5	60.0%	—	—	—	—	—	—	—	—	3	2	5	60.0%
2018	23	ATP	0	1	1	0.0%	—	—	—	—	—	—	—	—	0	1	1	0.0%
2019	24	Qualifying Q	2	2	4	50.0%	—	—	—	—	0	2	2	0.0%	2	4	6	33.3%
2019	24	ATP	0	1	1	0.0%	—	—	—	—	—	—	—	—	0	1	1	0.0%
2020	25	Qualifying Q	0	1	1	0.0%	0	1	1	0.0%	—	—	—	—	0	2	2	0.0%
2020	25	ATP	0	1	1	0.0%	—	—	—	—	—	—	—	—	0	1	1	0.0%
2021	26	Qualifying Q	3	4	7	42.9%	1	1	2	50.0%	0	2	2	0.0%	4	7	11	36.4%
2021	26	ATP	0	1	1	0.0%	—	—	—	—	—	—	—	—	0	1	1	0.0%
2022	27	Qualifying Q	0	1	1	0.0%	—	—	—	—	0	1	1	0.0%	0	2	2	0.0%
2023	28	Qualifying Q	3	3	6	50.0%	—	—	—	—	—	—	—	—	3	3	6	50.0%
2023	28	ATP	0	1	1	0.0%	—	—	—	—	—	—	—	—	0	1	1	0.0%
2024	29	Qualifying Q	1	3	4	25.0%	0	1	1	0.0%	0	1	1	0.0%	1	5	6	16.7%
2025	30	Qualifying Q	0	1	1	0.0%	0	1	1	0.0%	—	—	—	—	0	2	2	0.0%
2026	31	Qualifying Q	0	1	1	0.0%	—	—	—	—	—	—	—	—	0	1	1	0.0%
Career	—	—	0	6	6	0.0%	—	—	—	—	0	1	1	0.0%	0	7	7	0.0%

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 %
2017	22	0	0	—	—	0	1	1	0.0%	0	0	—	—	0	1	1	0.0%	0	2	2	0.0%
2018	23	0	0	—	—	0	0	—	—	0	0	—	—	0	1	1	0.0%	0	1	1	0.0%
2019	24	0	0	—	—	0	0	—	—	0	1	1	0.0%	0	0	—	—	0	1	1	0.0%
2020	25	0	0	—	—	0	0	—	—	0	0	—	—	0	1	1	0.0%	0	1	1	0.0%
2021	26	0	0	—	—	0	0	—	—	0	1	1	0.0%	0	0	—	—	0	1	1	0.0%
2023	28	0	0	—	—	0	0	—	—	0	1	1	0.0%	0	0	—	—	0	1	1	0.0%
Career		0	0	—	—	0	1	1	0.0%	0	3	3	0.0%	0	3	3	0.0%	0	7	7	0.0%

Performance Stats

Season	Age	Sample	Aces/M	DFs/M	1st Sv%	1st Sv Pts%	2nd Sv Pts%	BP Saved%	BP Conv%	Svc Pts%	Ret Pts%
2017	22	2	5.0	7.0	60.7%	62.6%	45.5%	42.5%	59.7%	55.6%	34.9%
2018	23	1	12.0	1.0	72.6%	68.9%	41.2%	60.0%	0.0%	61.3%	19.0%
2019	24	1	9.0	7.0	58.4%	73.3%	40.6%	40.0%	33.3%	59.7%	33.8%
2020	25	1	11.0	4.0	57.9%	64.3%	49.0%	25.0%	28.6%	57.9%	29.2%
2021	26	1	8.0	3.0	57.4%	66.7%	45.0%	42.9%	60.0%	57.4%	37.2%
2023	28	1	1.0	4.0	51.8%	63.6%	51.2%	28.6%	33.3%	57.6%	30.9%
Career		7	7.3	4.7	59.9%	66.0%	45.4%	40.2%	39.2%	57.9%	31.4%

Advanced Stats

Season	Age	ELO	ELO %	Hard %	Clay %	Grass %	Set Win %	Set Margin	SoS %	Deep Run %	Dec. Set W%	TB L	TB W%
2016	21	1488	35	—	—	—	—	—	24	—	—	0	—
2017	22	1478	24	—	—	—	28.6%	-1.70	88	0	—	1	—
2018	23	1503	42	—	—	—	0.0%	-2.50	28	0	—	0	—
2019	24	1511	43	—	—	—	0.0%	-2.00	69	0	—	0	—
2020	25	1469	12	—	—	—	25.0%	-1.75	22	0	—	1	—
2021	26	1455	8	—	—	—	33.3%	-1.00	25	0	—	0	—
2022	27	1422	1	—	—	—	—	—	1	—	—	0	—
2023	28	1450	7	—	—	—	33.3%	-1.33	29	0	—	0	—
2024	29	1421	2	—	—	—	—	—	23	—	—	0	—
2025	30	1395	0	—	—	—	—	—	3	—	—	0	—
2026	31	1386	0	—	—	—	—	—	25	—	—	0	—
Career		1478	23	33	—	—	23.8%	-1.71	50	0	0	2	—

Tournament Results by Category

Results show best round reached per tournament per season.

Grand Slams

Season	Age	AO	RG	W	USO
2016	21	—	—	—	Q1
2017	22	—	—	—	R128
2018	23	—	—	—	Q2
2019	24	—	—	—	Q1
2020	25	Q1	Q1	—	R128
2021	26	—	Q2	Q1	Q1
2022	27	—	—	Q1	—

Masters 1000

Season	Age	CAN	IW	MIA
2019	24	Q1	—	—
2021	26	—	Q2	Q1
2023	28	Q1	—	—

ATP 500

Season	Age	DAL	WAS
2018	23	—	R64
2019	24	—	R64
2022	27	—	Q1
2023	28	—	Q2
2024	29	—	Q1
2025	30	—	Q1
2026	31	Q1	—

ATP 250

Season	Age	DAL	EAS	GEN	NWP	WSA	SIN
2017	22	—	—	—	R32	—	—
2019	24	—	Q1	—	Q1	—	—
2021	26	—	—	—	Q1	—	R32
2023	28	Q1	—	—	—	R64	—
2024	29	Q1	—	Q1	Q1	Q2	—
2025	30	—	—	—	—	Q1	—

ATP Ranking History full ranking history →

Career high

181

Career-high date

Feb 3, 2020

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
2017	22	567	564	553	545	550	571	677	710	706	538	542	520
2018	23	567	565	577	573	500	472	393	383	338	346	277	296
2019	24	267	265	269	254	248	206	206	204	188	203	245	243
2020	25	270	184	183	183	—	—	—	187	197	207	212	212
2021	26	213	219	224	223	219	225	226	223	241	232	217	221
2022	27	304	309	310	340	374	560	546	559	683	846	1496	1487
2023	28	1471	1277	1279	645	646	522	500	469	437	354	325	322
2024	29	296	291	263	275	271	286	289	300	318	375	412	411
2025	30	492	538	933	1053	1050	1048	1369	1378	—	—	—	—

Similar Players

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

Player	Country	Peak Rank	Peak Elo	Titles	M	W	L	Win %	Active Years	Match Log
Mitchell Krueger	USA	135	1,688	0	36	11	25	30.6%	2014-2025	Match log
Stefan Kozlov	USA	103	1,673	0	35	9	26	25.7%	2013-2022	Match log
Noah Rubin	USA	125	1,692	0	29	8	21	27.6%	2014-2021	Match log
Elias Ymer	SWE	105	1,696	0	97	29	68	29.9%	2013-2026	Match log
Alex Bolt	AUS	125	1,728	0	52	18	34	34.6%	2015-2026	Match log
Ramkumar Ramanathan	IND	111	1,640	0	41	14	27	34.1%	2014-2024	Match log
Andrea Pellegrino	ITA	109	1,707	0	21	12	9	57.1%	2020-2026	Match log
Tim van Rijthoven	NED	101	1,759	1	20	10	10	50.0%	2016-2024	Match log
Jason Jung	TPE	114	1,668	0	32	10	22	31.3%	2017-2023	Match log
Harold Mayot	FRA	103	1,671	0	25	8	17	32.0%	2020-2025	Match log
Giulio Zeppieri	ITA	110	1,709	0	28	7	21	25.0%	2020-2025	Match log
Marc Polmans	AUS	116	1,608	0	24	6	18	25.0%	2017-2026	Match log

Frequently Asked Questions

How old is Thai-Son Kwiatkowski?: Thai-Son Kwiatkowski is 31 years old, born on February 13, 1995.
Which country is Thai-Son Kwiatkowski from?: Thai-Son Kwiatkowski is from United States.
How tall is Thai-Son Kwiatkowski?: Thai-Son Kwiatkowski is 188 cm / 6'2".
Is Thai-Son Kwiatkowski left-handed or right-handed?: Thai-Son Kwiatkowski plays right-handed.
How many Grand Slams has Thai-Son Kwiatkowski won?: Thai-Son Kwiatkowski has not won a Grand Slam title.
How many Masters 1000 titles has Thai-Son Kwiatkowski won?: Thai-Son Kwiatkowski has not won a Masters 1000 title.
What is Thai-Son Kwiatkowski's highest ATP ranking?: Thai-Son Kwiatkowski's career-high ATP singles ranking is world No. 181, first achieved on February 3, 2020.
What is Thai-Son Kwiatkowski's career win-loss record?: Thai-Son Kwiatkowski has a career ATP singles record of 0 wins and 7 losses (0.0%).
How much career prize money has Thai-Son Kwiatkowski earned?: Thai-Son Kwiatkowski has earned at least $556,915 in career prize money from professional tennis.
When did Thai-Son Kwiatkowski play professional tennis?: Thai-Son Kwiatkowski turned professional in 2017 and was active through 2023.
Who is Thai-Son Kwiatkowski's biggest rival?: Thai-Son Kwiatkowski's most frequent opponent is Soonwoo Kwon, with a head-to-head record of 0–2 across 2 meetings.