Player

🇺🇸 stefan kozlov

Career matches 606

Wins 336

Losses 270

Win rate 55.4%

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

Surface breakdown

Hard 56.5% 248W – 191L (439 matches)

Clay 56.8% 75W – 57L (132 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

451–500 of 606

Date	Tournament	Round	Winner	Loser	Score	Surface
2016-07-11	Newport	R32	stefan kozlov	benjamin becker	6-1 6-2	Grass
2016-07-04	Winnetka CH	R16	go soeda	stefan kozlov	6-3 6-2	Hard
2016-07-04	Winnetka CH	R32	stefan kozlov	sekou bangoura	6-4 3-6 6-2	Hard
2016-06-27	Wimbledon	Q1	daniil medvedev	stefan kozlov	6-2 6-2	Grass
2016-06-13	Queen's Club	Q1	vasek pospisil	stefan kozlov	7-6(5) 7-6(6)	Grass
2016-06-06	s Hertogenbosch	QF	sam querrey	stefan kozlov	6-3 6-0	Grass
2016-06-06	s Hertogenbosch	R16	stefan kozlov	steve johnson	6-3 6-4	Grass
2016-06-06	s Hertogenbosch	R32	stefan kozlov	yoshihito nishioka	6-1 2-6 6-3	Grass
2016-05-30	Manchester CH	R16	denis kudla	stefan kozlov	6-4 6-3	Grass
2016-05-30	Manchester CH	R32	stefan kozlov	adrien bossel	6-4 6-4	Grass
2016-05-23	Vicenza CH	QF	edoardo eremin	stefan kozlov	6-1 3-6 6-3	Clay
2016-05-23	Vicenza CH	R16	stefan kozlov	kimmer coppejans	6-4 6-4	Clay
2016-05-23	Vicenza CH	R32	stefan kozlov	renzo olivo	6-3 6-4	Clay
2016-05-23	Roland Garros	Q1	grega zemlja	stefan kozlov	3-6 6-3 6-1	Clay
2016-05-09	Bordeaux CH	Q2	jonathan eysseric	stefan kozlov	6-3 6-1	Clay
2016-05-09	Bordeaux CH	Q1	stefan kozlov	david guez	1-6 7-6(4) 6-3	Clay
2016-04-25	Tallahassee CH	QF	james mcgee	stefan kozlov	6-3 2-6 7-6(1)	Clay
2016-04-25	Tallahassee CH	R16	stefan kozlov	gerald melzer	6-2 3-6 6-2	Clay
2016-04-25	Tallahassee CH	R32	stefan kozlov	jose hernandez	6-7(4) 7-6(4) 6-4	Clay
2016-04-25	Tallahassee CH	Q3	stefan kozlov	blake mott	7-5 4-6 6-3	Clay
2016-04-25	Tallahassee CH	Q2	stefan kozlov	mico santiago	7-5 6-2	Clay
2016-04-11	USA F13	F	stefan kozlov	eric quigley	6-7(3) 6-3 7-6(10)	Hard
2016-04-11	USA F13	SF	stefan kozlov	tennys sandgren	6-2 6-4	Hard
2016-04-11	USA F13	QF	stefan kozlov	evan king	7-5 6-4	Hard
2016-04-11	USA F13	R16	stefan kozlov	sebastian fanselow	6-2 6-2	Hard
2016-04-11	USA F13	R32	stefan kozlov	j j wolf	6-1 6-3	Hard
2016-04-04	Le Gosier CH	F	malek jaziri	stefan kozlov	6-2 6-4	Hard
2016-04-04	Le Gosier CH	SF	stefan kozlov	yoshihito nishioka	3-6 7-5 6-3	Hard
2016-04-04	Le Gosier CH	QF	stefan kozlov	vincent millot	5-7 7-5 6-2	Hard
2016-04-04	Le Gosier CH	R16	stefan kozlov	constant lestienne	6-2 3-6 6-1	Hard
2016-04-04	Le Gosier CH	R32	stefan kozlov	austin krajicek	6-3 6-4	Hard
2016-03-21	USA F11	R32	ernesto escobedo	stefan kozlov	6-3 6-4	Hard
2016-03-14	Drummondville CH	R32	renzo olivo	stefan kozlov	6-3 1-6 7-5	Hard
2016-03-07	Canada F2	F	stefan kozlov	lloyd glasspool	4-6 6-4 6-4	Hard
2016-03-07	Canada F2	SF	stefan kozlov	filip peliwo	7-5 7-5	Hard
2016-03-07	Canada F2	QF	stefan kozlov	hugo nys	6-4 7-6(5)	Hard
2016-03-07	Canada F2	R16	stefan kozlov	tim van rijthoven	7-6(7) 6-2	Hard
2016-03-07	Canada F2	R32	stefan kozlov	tyler hochwalt	6-2 6-2	Hard
2016-02-29	Canada F1	QF	tim van rijthoven	stefan kozlov	6-2 3-6 6-4	Hard
2016-02-29	Canada F1	R16	stefan kozlov	kaichi uchida	4-6 6-3 6-3	Hard
2016-02-29	Canada F1	R32	stefan kozlov	andrew carter	6-1 3-0 RET	Hard
2016-02-15	USA F7	QF	victor hanescu	stefan kozlov	4-6 7-6(2) 6-4	Clay
2016-02-15	USA F7	R16	stefan kozlov	agustin velotti	7-6(3) 3-6 7-6(5)	Clay
2016-02-15	USA F7	R32	stefan kozlov	winston lin	6-2 5-7 6-3	Clay
2016-02-08	Santo Domingo CH	Q2	pere riba	stefan kozlov	6-2 6-3	Clay
2016-02-08	Santo Domingo CH	Q1	stefan kozlov	jesus francisco felix	6-1 6-2	Clay
2016-02-01	Dallas CH	Q1	ryan haviland	stefan kozlov	6-4 1-6 6-2	Hard
2016-01-25	Lahaina CH	R32	nicolas meister	stefan kozlov	6-3 6-1	Hard
2016-01-11	USA F2	R32	michael mmoh	stefan kozlov	7-5 6-4	Hard
2016-01-04	USA F1	F	stefan kozlov	philip bester	7-6(7) 6-7(3) 6-3	Hard

Aliases

betfair

stefan kozlov