Player

🇺🇸 stefan kozlov

Career matches 612

Wins 340

Losses 272

Win rate 55.6%

Elo (current) 2,170 2026-04-22

Surface breakdown

Hard 56.6% 250W – 192L (442 matches)

Clay 56.7% 76W – 58L (134 matches)

Grass 37.1% 13W – 22L (35 matches)

Career form (last 10)

WLLWWWLLLW

Newest on left. Hover for details.

Head-to-head (top 5 opponents)

Opponent	Played	W	L	W%
j j wolf	10	5	5	50%
mitchell krueger	10	5	5	50%
tennys sandgren	9	6	3	67%
steve johnson	8	5	3	63%
darian king	7	1	6	14%

Recent matches

401–450 of 612

Date	Tournament	Round	Winner	Loser	Score	Surface
2017-04-17	Bradenton CH	R16	horacio zeballos	stefan kozlov	6-1 7-6(3)	Clay
2017-04-17	Bradenton CH	R32	stefan kozlov	peter polansky	6-4 6-4	Clay
2017-04-17	Bradenton CH	Q3	blaz rola	stefan kozlov	2-6 6-4 6-2	Clay
2017-04-17	Bradenton CH	Q2	stefan kozlov	axel geller	6-1 6-2	Clay
2017-04-17	Bradenton CH	Q1	stefan kozlov	sathi reddy	6-0 6-0	Clay
2017-04-10	San Luis Potosi CH	R32	miomir kecmanovic	stefan kozlov	6-2 7-5	Clay
2017-04-03	Panama City CH	R32	blaz rola	stefan kozlov	6-1 7-6(6)	Clay
2017-03-27	Leon CH	R16	rajeev ram	stefan kozlov	6-1 7-6(4)	Hard
2017-03-27	Leon CH	R32	stefan kozlov	danilo petrovic	6-4 6-2	Hard
2017-03-20	Miami Masters	Q2	jared donaldson	stefan kozlov	7-5 6-3	Hard
2017-03-20	Miami Masters	Q1	stefan kozlov	nicola kuhn	6-3 3-6 6-3	Hard
2017-03-06	Indian Wells Masters	R128	donald young	stefan kozlov	7-5 7-6(5)	Hard
2017-02-27	Acapulco	R32	ernesto escobedo	stefan kozlov	6-1 2-6 6-0	Hard
2017-02-27	Acapulco	Q2	stefan kozlov	jared donaldson	7-5 6-3	Hard
2017-02-27	Acapulco	Q1	stefan kozlov	hyeon chung	6-2 6-2	Hard
2017-02-20	Delray Beach	R32	steve johnson	stefan kozlov	6-1 6-4	Hard
2017-02-13	Tempe CH	QF	teymuraz gabashvili	stefan kozlov	6-3 6-1	Hard
2017-02-13	Tempe CH	R16	stefan kozlov	roberto quiroz	6-4 7-6(5)	Hard
2017-02-13	Tempe CH	R32	stefan kozlov	bradley klahn	6-1 7-5	Hard
2017-01-16	Australian Open	Q1	yuki bhambri	stefan kozlov	6-1 6-4	Hard
2017-01-02	Brisbane	Q1	john patrick smith	stefan kozlov	6-2 6-3	Hard
2016-11-21	Columbus CH	F	stefan kozlov	tennys sandgren	6-1 2-6 6-2	Hard
2016-11-21	Columbus CH	SF	stefan kozlov	sam barry	7-5 7-6(6)	Hard
2016-11-21	Columbus CH	QF	stefan kozlov	kevin king	6-2 7-5	Hard
2016-11-21	Columbus CH	R16	stefan kozlov	dominik koepfer	6-3 6-4	Hard
2016-11-21	Columbus CH	R32	stefan kozlov	jose rubin statham	6-2 7-6(6)	Hard
2016-11-14	Champaign CH	R16	michael mmoh	stefan kozlov	6-1 6-4	Hard
2016-11-14	Champaign CH	R32	stefan kozlov	austin krajicek	6-4 7-6(3)	Hard
2016-11-07	Knoxville CH	SF	michael mmoh	stefan kozlov	6-0 6-3	Hard
2016-11-07	Knoxville CH	QF	stefan kozlov	edward corrie	6-4 6-3	Hard
2016-11-07	Knoxville CH	R16	stefan kozlov	tennys sandgren	6-2 6-4	Hard
2016-11-07	Knoxville CH	R32	stefan kozlov	sam barry	6-4 7-5	Hard
2016-10-24	Suzhou CH	F	yen hsun lu	stefan kozlov	6-0 6-1	Hard
2016-10-24	Suzhou CH	SF	stefan kozlov	alexander kudryavtsev	6-3 0-1 RET	Hard
2016-10-24	Suzhou CH	QF	stefan kozlov	sergiy stakhovsky	3-6 6-2 7-5	Hard
2016-10-24	Suzhou CH	R16	stefan kozlov	cheong eui kim	6-4 6-3	Hard
2016-10-24	Suzhou CH	R32	stefan kozlov	yecong he	5-7 6-0 6-4	Hard
2016-10-17	Ningbo CH	QF	yen hsun lu	stefan kozlov	3-6 6-4 6-4	Hard
2016-10-17	Ningbo CH	R16	stefan kozlov	di wu	7-6(4) 6-3	Hard
2016-10-17	Ningbo CH	R32	stefan kozlov	jimmy wang	6-2 6-4	Hard
2016-10-10	Ho Chi Minh CH	R32	taro daniel	stefan kozlov	6-4 6-3	Hard
2016-09-26	Tiburon CH	R16	michael mmoh	stefan kozlov	7-5 6-4	Hard
2016-09-26	Tiburon CH	R32	stefan kozlov	guilherme clezar	6-2 6-2	Hard
2016-09-12	Cary CH	QF	ernesto escobedo	stefan kozlov	3-6 6-1 6-2	Hard
2016-09-12	Cary CH	R16	stefan kozlov	philip bester	6-4 6-1	Hard
2016-09-12	Cary CH	R32	stefan kozlov	erik crepaldi	3-6 6-4 6-2	Hard
2016-08-29	US Open	Q1	michael berrer	stefan kozlov	2-6 7-6(5) 6-2	Hard
2016-08-15	Cincinnati Masters	Q2	malek jaziri	stefan kozlov	6-4 6-2	Hard
2016-08-15	Cincinnati Masters	Q1	stefan kozlov	damir dzumhur	6-4 3-6 7-5	Hard
2016-08-08	Aptos CH	R32	mackenzie mcdonald	stefan kozlov	6-1 6-4	Hard

Aliases

betfair

stefan kozlov