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Temuco Challenger

Valencia Challenger

Andria Challenger

Yokkaichi Challenger

Uruguay

Stefan Kozlov

24 year old United States

United States

1 Feb 1998

2022 - 2021 - 2020 - 2019 - 2018 - 2017 - 2016 - 2015 - 2014 - 2013 - See All

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2022

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2020

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2018

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2016

2015

2014

2013

2012

Stefan Kozlov

21 - 34win/loss

Hard

14-18

44%

I Hard

4-5

44%

Clay

0-5

0%

Grass

3-6

33%

Next Tournaments

--- Draw Prediction ---

Champaign Challenger 35

I.hard

Prajnesh Gunneswaran

P.Gunneswaran
IND Loss
3-6 6-3 6-4

1^st
14 Nov 22

L

Knoxville Challenger 35

I.hard

Enzo Couacaud

E.Couacaud
FRA Loss
6-3 7-5

1/4
11 Nov 22

L

Prajnesh Gunneswaran

P.Gunneswaran
IND
6-4 6-3

2^nd
09 Nov 22

W

Martin Damm

M.Damm
USA
6-7⁷ 6-3 6-2

1^st
07 Nov 22

W

Charlottesville Challenger 35

I.hard

Lucas Gerch

L.Gerch
GER Loss
6-4 7-6³

2^nd
03 Nov 22

L

Mitchell Krueger

M.Krueger
USA
7-5 0-6 7-6¹

1^st
01 Nov 22

W

Las Vegas Challenger 35

Hard

Tennys Sandgren

T.Sandgren
USA Loss
7-5 6-3

Fin.
30 Oct 22

L

Steve Johnson

S.Johnson
USA
6-3 1-6 7-5

1/2
29 Oct 22

W

Alexis Galarneau

A.Galarneau
CAN
6-7⁵ 6-4 6-3

1/4
28 Oct 22

W

Evan Zhu

E.Zhu
USA
7-6⁵ 6-2

2^nd
27 Oct 22

W

Cannon Kingsley

C.Kingsley
USA
7-5 4-6 6-1

1^st
25 Oct 22

W

Fairfield Challenger 35

Hard

Sam Riffice

S.Riffice
USA Loss
3-6 6-2 6-3

1^st
11 Oct 22

L

Tiburon Challenger 35

Hard

Alexis Galarneau

A.Galarneau
CAN Loss
6-1 7-5

2^nd
06 Oct 22

L

Giovanni Oradini

G.Oradini
ITA
6-1 6-4

1^st
04 Oct 22

W

San Diego

Hard

Jeff Wolf

J.Wolf
USA Loss
6-2 7-6⁶

1^st
19 Sep 22

L

Cary Challenger 35

Hard

Yasutaka Uchiyama

Y.Uchiyama
JPN Loss
6-4 2-0 ret.

2^nd
15 Sep 22

L

Cannon Kingsley

C.Kingsley
USA
2-6 6-2 6-2

1^st
13 Sep 22

W

New York

Hard

Daniil Medvedev

D.Medvedev
RUS Loss
6-2 6-4 6-0

1^st
29 Aug 22

L

Cincinnati

Hard

Dusan Lajovic

D.Lajovic
SRB Loss
6-3 7-5

q1
13 Aug 22

L

Chicago Challenger 35

Hard

Ernesto Escobedo

E.Escobedo
USA Loss
6-4 7-6²

1^st
10 Aug 22

L

Washington

Hard

Jack Draper

J.Draper
GBR Loss
7-5 6-2

1^st
01 Aug 22

L

Atlanta

Hard

Ramkumar Ramanathan

R.Ramanathan
IND Loss
6-0 6-1

q1
23 Jul 22

L

Indianapolis Challenger 35

I.hard

Aleksandar Kovacevic

A.Kovacevic
USA Loss
6-3 6-7⁴ 6-4

1^st
18 Jul 22

L

Newport

Grass

Steve Johnson

S.Johnson
USA Loss
7-5 6-3

1^st
11 Jul 22

L

London

Grass

Diego Schwartzman

D.Schwartzman
ARG Loss
6-3 6-2 6-2

1^st
28 Jun 22

L

Dennis Novak

D.Novak
AUT Loss
7-5 6-4 5-7 3-6 6-3

Q.
23 Jun 22

L

Dominic Stephan Stricker

D.Stricker
SUI
7-6⁹ 4-6 6-3

q2
22 Jun 22

W

Evan Furness

E.Furness
FRA
7-5 6-3

q1
20 Jun 22

W

London

Grass

Steve Johnson

S.Johnson
USA Loss
6-0 6-0

q1
11 Jun 22

L

's-Hertogenbosch

Grass

Matthew Ebden

M.Ebden
AUS Loss
6-4 6-4

q1
04 Jun 22

L

Surbiton Challenger 35

Grass

Brandon Nakashima

B.Nakashima
USA Loss
6-4 6-3

2^nd
02 Jun 22

L

Mats Moraing

M.Moraing
GER
6-3 7-6⁴

1^st
01 Jun 22

W

Paris

Clay

Nino Serdarusic

N.Serdarusic
CRO Loss
7-5 6-0

q1
17 May 22

L

Bordeaux Challenger 35

Clay

Jaume Antoni Munar Clar

J.Clar
ESP Loss
6-2 6-3

1^st
10 May 22

L

Savannah Challenger 35

Clay

Jose Pereira

J.Pereira
BRA Loss
6-1 6-0

1^st
26 Apr 22

L

Mexico City Challenger 35

Clay

Gerald Melzer

G.Melzer
AUT Loss
6-4 0-0 ret.

1^st
04 Apr 22

L

Pereira Challenger 35

Clay

Nicolas Mejia

N.Mejia
COL Loss
6-1 6-1

1^st
29 Mar 22

L

Miami

Hard

Mitchell Krueger

M.Krueger
USA Loss
6-2 6-2

q1
21 Mar 22

L

Indian Wells

Hard

Holger Rune

H.Rune
DEN Loss
6-4 6-2

Q.
09 Mar 22

L

Sebastian Sec

S.Sec
USA
6-3 6-7⁴ 6-2

q1
08 Mar 22

W

Acapulco

Hard

Rafael Nadal

R.Nadal
ESP Loss
6-0 6-3

2^nd
23 Feb 22

L

Grigor Dimitrov

G.Dimitrov
BUL
7-6⁸ 5-7 6-3

1^st
21 Feb 22

W

Oscar Otte

O.Otte
GER Loss
6-1 0-6 7-6²

Q.
20 Feb 22

L

Steve Johnson

S.Johnson
USA
6-4 6-3

q1
19 Feb 22

W

Delray Beach

Hard

Tommy Paul

T.Paul
USA Loss
6-3 6-1

1/4
18 Feb 22

L

Steve Johnson

S.Johnson
USA
6-1 6-3

2^nd
16 Feb 22

W

Emilio Gomez

E.Gomez
ECU
4-6 7-5 6-3

1^st
15 Feb 22

W

Bjorn Fratangelo

B.Fratangelo
USA
6-3 1-0 ret.

Q.
13 Feb 22

W

Go Soeda

G.Soeda
JPN
7-5 6-2

q1
12 Feb 22

W

Columbus Challenger 35

I.hard

Dominic Stephan Stricker

D.Stricker
SUI Loss
4-6 6-4 6-3

2^nd
26 Jan 22

L

Alexander Bernard

A.Bernard
USA
6-2 6-1

1^st
24 Jan 22

W

Melbourne

Hard

Matteo Berrettini

M.Berrettini
ITA Loss
6-1 4-6 6-4 6-1

2^nd
19 Jan 22

L

Jiri Vesely

J.Vesely
CZE
7-5 6-3 6-4

1^st
17 Jan 22

W

Sydney

Hard

Denis Kudla

D.Kudla
USA Loss
4-6 7-6⁷ 6-3

q1
09 Jan 22

L

Bendigo Challenger 35

Hard

Flavio Cobolli

F.Cobolli
ITA Loss
6-4 3-6 6-1

2^nd
04 Jan 22

L

Slams

Australian Open Wimbledon French Open U.S. Open

ATP 1000

Miami Cincinnati Indian Wells

Career Titles - 0

Year	Sum.	Hard	Clay	I.hard	Grass	Carpet
2022	21-34	14-18	0-5	4-5	3-6	0-0
2021	41-15	20-12	5-2	16-1	0-0	0-0
2020	13-13	7-8	0-0	6-5	0-0	0-0
2019	22-18	14-9	4-4	4-5	0-0	0-0
2018	13-26	4-12	7-6	1-4	1-4	0-0
2017	31-29	15-14	8-8	3-2	5-5	0-0
2016	58-31	28-15	10-6	16-5	4-5	0-0
2015	44-27	15-12	10-5	17-8	2-2	0-0
2014	17-15	15-10	2-3	0-2	0-0	0-0
2013	13-8	3-2	10-5	0-0	0-1	0-0
2012	2-1	2-1	0-0	0-0	0-0	0-0
Total	275-217	137-113	56-44	67-37	15-23	0-0

Ranking History