2024-03-30

Houston - Clay - SF

Denis Yevseyev (#164)
def
Stefan Kozlov (#442)
6-2 6-0

Match Stats

2024-02-11

Delray Beach - Hard - SF

Shintaro Mochizuki (#141)
def
Stefan Kozlov (#442)
3-6 6(2)-7(7)

Match Stats

2022-09-19

San Diego - Hard - R32

John Wolf Jeffrey (#73)
def
Stefan Kozlov (#108)
6-2 7-6(6)

2022-08-29

US Open - Hard - R128

Daniil Medvedev (#1)
def
Stefan Kozlov (#111)
6-2 6-4 6-0

2022-08-01

Washington - Hard - R64

Jack Draper (#81)
def
Stefan Kozlov (#111)
7-5 6-2

2022-07-11

Newport - Grass - R32

Steve Johnson (#95)
def
Stefan Kozlov (#104)
7-5 6-3

2022-06-27

Wimbledon - Grass - R128

Diego Schwartzman (#15)
def
Stefan Kozlov (#107)
6-3 6-2 6-2

2022-02-21

Acapulco - Hard - R16

Rafael Nadal (#5)
def
Stefan Kozlov (#130)
6-0 6-3

2022-02-21

Acapulco - Hard - R32

Stefan Kozlov (#130)
def
Grigor Dimitrov (#33)
7-6(8) 5-7 6-3

2022-02-14

Delray Beach - Hard - QF

Tommy Paul (#41)
def
Stefan Kozlov (#151)
6-3 6-1

2022-02-14

Delray Beach - Hard - R16

Stefan Kozlov (#151)
def
Steve Johnson (#99)
6-1 6-3

2022-02-14

Delray Beach - Hard - R32

Stefan Kozlov (#151)
def
Emilio Gomez (#149)
4-6 7-5 6-3

2022-01-17

Australian Open - Hard - R64

Matteo Berrettini (#7)
def
Stefan Kozlov (#169)
6-1 4-6 6-4 6-1

2022-01-17

Australian Open - Hard - R128

Stefan Kozlov (#169)
def
Jiri Vesely (#78)
7-5 6-3 6-4

2021-03-15

Acapulco - Hard - R32

Cameron Norrie (#61)
def
Stefan Kozlov (#389)
6-3 6-3

2020-02-17

Delray Beach - Hard - R32

Ugo Humbert (#44)
def
Stefan Kozlov (#367)
6-7(5) 6-3 6-1

2018-04-09

Houston - Clay - R32

Guido Pella (#63)
def
Stefan Kozlov (#184)
6-3 6-2

2017-08-14

Cincinnati - Hard - R64

Sam Querrey (#20)
def
Stefan Kozlov (#133)
6-3 6-0

2017-07-31

Washington - Hard - R64

Yuki Bhambri (#200)
def
Stefan Kozlov (#132)
7-5 2-0 RET

2017-07-24

Atlanta - Hard - R32

Quentin Halys (#134)
def
Stefan Kozlov (#133)
7-5 7-6(7)

2017-07-17

Newport - Grass - R32

Adrian Menendez Maceiras (#140)
def
Stefan Kozlov (#129)
6-2 7-6(5)

2017-06-19

Queen's Club - Grass - R16

Marin Cilic (#7)
def
Stefan Kozlov (#149)
6-0 6-4

2017-06-19

Queen's Club - Grass - R32

Stefan Kozlov (#149)
def
Steve Johnson (#25)
3-6 6-1 6-1

2017-06-12

s Hertogenbosch - Grass - R16

Ivo Karlovic (#24)
def
Stefan Kozlov (#150)
6-4 6-1

2017-06-12

s Hertogenbosch - Grass - R32

Stefan Kozlov (#150)
def
Dustin Brown (#90)
6-3 3-6 6-3

2017-03-06

Indian Wells - Hard - R128

Donald Young (#60)
def
Stefan Kozlov (#116)
7-5 7-6(5)

2017-02-27

Acapulco - Hard - R32

Ernesto Escobedo (#113)
def
Stefan Kozlov (#115)
6-1 2-6 6-0

2017-02-20

Delray Beach - Hard - R32

Steve Johnson (#26)
def
Stefan Kozlov (#115)
6-1 6-4

2016-07-11

Newport - Grass - R16

Donald Young (#61)
def
Stefan Kozlov (#169)
6-0 6-4

2016-07-11

Newport - Grass - R32

Stefan Kozlov (#169)
def
Benjamin Becker (#96)
6-1 6-2

2016-06-06

s Hertogenbosch - Grass - QF

Sam Querrey (#37)
def
Stefan Kozlov (#196)
6-3 6-0

2016-06-06

s Hertogenbosch - Grass - R16

Stefan Kozlov (#196)
def
Steve Johnson (#39)
6-3 6-4

2016-06-06

s Hertogenbosch - Grass - R32

Stefan Kozlov (#196)
def
Yoshihito Nishioka (#117)
6-1 2-6 6-3

2015-02-16

Delray Beach - Hard - R32

Tim Smyczek (#80)
def
Stefan Kozlov (#406)
7-5 6-2

2015-02-09

Memphis - Hard - R32

Jared Donaldson (#180)
def
Stefan Kozlov (#407)
7-5 6-0

2014-10-20

Valencia - Hard - R32

Martin Klizan (#37)
def
Stefan Kozlov (#441)
6-3 6-3

2013-07-08

Newport - Grass - R32

Michal Przysiezny (#113)
def
Stefan Kozlov (#1472)
6-3 6-7(9) 6-4