Stefan Kozlov

319 ATP ranking 169 points 28 years 183 cm Right handed

Match log

2026

Valencia CH, challenger Clay, May
Q2 L Alejo Sanchez Quilez 5-7 4-6
Q1 W Mario Mansilla Diez 6-2 6-1
Savannah CH, challenger Clay, April
R16 L Nick Hardt 2-6 6-2 0-6
R32 W Daniil Glinka 6-2 6-3
Tallahassee CH, challenger Clay, April
R32 L Alex Rybakov 6-7(3) 2-6
Q2 W Kilian Feldbausch 6-1 4-6 7-6(2)
Q1 W Strong Kirchheimer 6-0 6-4
Mexico City CH, challenger Clay, April
R16 L James Duckworth 3-6 2-6
R32 W Raphael Perot 6-3 6-1
San Luis Potosi CH, challenger Clay, March
R32 L Alan Magadan 3-6 6-7(7)
Morelia CH, challenger Hard, March
R32 L Andres Martin 2-6 2-6
Cuernavaca CH, challenger Hard, March
R16 L Michael Mmoh 5-7 2-6
R32 W Alan Magadan 6-4 6-4
Phoenix CH, challenger Hard, March
R32 L Jay Dylan Hara Friend 2-6 6-4 3-6
Q2 W Marc Polmans 6-1 3-6 6-4
Q1 W Nathan Ponwith 7-5 6-4
Acapulco, qualifying Hard, February
Q1 L Patrick Kypson 6-7(3) 0-6
Metepec CH, challenger Hard, February
QF L Rodrigo Pacheco Mendez 4-6 2-6
R16 W Karl Poling 6-4 7-6(4)
R32 W Tristan Mccormick 6-3 6-7(4) 6-4
Cleveland CH, challenger Hard, February
QF L Keegan Smith 3-6 2-6
R16 W Raphael Perot 7-6(5) 3-6 6-3
R32 W Cedrik Marcel Stebe 3-6 6-2 6-3
San Diego CH, challenger Hard, January
R32 L Sho Shimabukuro 2-6 6-4 6-7(5)
Oeiras 1 CH, challenger Hard, January
R16 L Francesco Passaro 3-6 6-1 1-6
R32 W Alexis Galarneau 7-6(2) 2-6 6-1
Q2 W Mikhail Kukushkin 6-4 6-2
Q1 W Robert Strombachs 6-3 5-0 RET
Glasgow CH, challenger Hard, January
R32 L Harry Wendelken 1-6 6-3 4-6
Nottingham CH, challenger Hard, January
QF L Toby Samuel 6-7(1) 4-6
R16 W Mathys Erhard 6-2 6-4
R32 W Tyler Zink 6-4 6-1

2025

Bogota CH, challenger Clay, November
QF L Juan Sebastian Gomez 6-4 4-6 5-7
R16 W David Jorda Sanchis 6-4 6-4
R32 W Juan Bautista Torres 6-0 4-6 6-3
Champaign CH, challenger Won the title Hard, November
F W Murphy Cassone 7-6(3) 7-5 Won the title
SF W Cedrik Marcel Stebe 6-0 4-0 RET
QF W Darwin Blanch 6-2 6-7(7) 6-3
R16 W Tyler Zink 6-3 6-3
R32 W Leo Borg 6-1 6-0
Knoxville CH, challenger Hard, November
R16 L Jay Clarke 2-6 6-2 3-6
R32 W Dominique Rolland 7-6(1) 2-6 6-1
Chicago CH, challenger Hard, August
Q2 L Tsung Hao Huang 6-1 5-7 2-6
Q1 W Ramkumar Ramanathan 6-1 6-7(4) 5-3 RET
Newport CH, challenger Grass, July
R32 L Mitchell Krueger 1-6 6-3 1-6
Tyler CH, challenger Hard, June
Q2 L Alvin Nicholas Tudorica 5-7 3-6
Q1 W Daniel Milavsky 6-3 6-7(7) 6-3
Little Rock CH, challenger Hard, May
R16 L Andres Andrade 1-6 6-4 5-7
R32 W Aziz Dougaz 5-7 6-3 6-2
Q2 W Elmar Ejupovic 6-4 7-6(5)
Q1 W Kiranpal Pannu 7-6(3) 2-6 6-2
Savannah CH, challenger Clay, April
QF L Eliot Spizzirri 3-6 5-7
R16 W Geoffrey Blancaneaux 6-1 3-1 RET
R32 W Max Wiskandt 6-2 6-1
Q2 W Christian Sigsgaard 6-4 6-4
Q1 W Ryan Fishback 7-5 6-3
Cuernavaca CH, challenger Hard, March
R16 L Rafael Jodar 5-7 6-3 2-6
R32 W Thiago Agustin Tirante 4-6 6-4 6-2
Acapulco, qualifying Hard, February
Q2 L Nishesh Basavareddy 2-6 4-6
Q1 W Duarte Vale 6-1 6-4
Delray Beach, qualifying Hard, February
Q1 L Zachary Svajda 3-6 0-6
Cleveland CH, challenger Hard, January
QF L J J Wolf 1-6 3-6
R16 W Kaylan Bigun 6-2 6-3
R32 W Micah Braswell 4-6 6-3 6-4
Quimper CH, challenger Hard, January
R32 L Elmer Moller 3-6 5-7
Q2 W Loann Massard 4-6 6-2 6-4
Q1 W Filip Misolic 6-3 6-4

2024

Champaign CH, challenger Hard, November
R32 L Patrick Kypson 6-1 6-7(3) 4-6
Sioux Falls CH, challenger Hard, October
R16 L Murphy Cassone W/O
R32 W Dmitry Popko 7-6(3) 4-6 6-4
Lincoln CH, challenger Hard, August
R32 L Nishesh Basavareddy 6-2 4-6 2-6
Q2 W Ernesto Escobedo 6-3 6-1
Q1 W Collin Altamirano 6-4 7-6(4)
Lexington CH, challenger Hard, July
R32 L Bernard Tomic 4-6 6-3 3-6
Q2 W Stefan Dostanic 7-6(3) 0-6 7-5
Q1 W Ryuki Matsuda 6-2 6-3
Granby CH, challenger Hard, July
R32 L Nicolas Mejia 1-6 2-6
Q2 W Cooper Williams 6-1 7-6(3)
Q1 W Victor Lilov 6-2 6-1
Bloomfield Hills CH, challenger Hard, July
SF L Nishesh Basavareddy 2-6 0-2 RET
QF W J J Wolf 6-4 6-4
R16 W Tung Lin Wu 5-7 6-3 4-0 RET
R32 W Michael Zheng 4-6 7-5 6-1
Q2 W William Grant 6-1 6-4
Tyler CH, challenger Hard, June
R16 L Coleman Wong 6-4 4-6 1-4 RET
R32 W Blaise Bicknell 6-3 6-3
Little Rock CH, challenger Hard, May
R32 L Rudy Quan 1-6 5-7
Savannah CH, challenger Clay, April
R32 L Alexander Ritschard 3-6 5-7
Tallahassee CH, challenger Clay, April
SF L Mitchell Krueger 3-6 6-3 1-6
QF W Oliver Crawford 6-2 6-2
R16 W Tennys Sandgren 6-2 6-7(5) 6-1
R32 W Gerard Campana Lee 4-6 6-3 6-0
Sarasota CH, challenger Clay, April
QF L Tennys Sandgren 1-6 4-6
R16 W Ethan Quinn 6-2 5-7 6-4
R32 W Denis Kudla 6-2 4-6 6-2
Q2 W Gabi Adrian Boitan 6-3 7-6(10)
Q1 W Arthur Gea 6-4 7-6(5)
Houston, qualifying Clay, April
Q1 L Denis Yevseyev 2-6 0-6
San Luis Potosi CH, challenger Clay, March
Q2 L Roberto Cid 2-6 3-6
Q1 W Evan Zhu 6-0 6-1
Merida CH, challenger Clay, March
QF L Juan Pablo Ficovich 6-7(6) 2-6
R16 W Elmar Ejupovic 6-3 6-2
R32 W Federico Gaio 6-4 4-6 6-2
Kigali 2 CH, challenger Clay, March
QF L Kamil Majchrzak 3-6 0-6
R16 W Benjamin Lock 7-6(2) 5-7 6-4
R32 W Noah Schachter 6-3 6-4
Q2 W Ivan Denisov 2-6 6-3 6-1
Q1 W Christopher Bulus 6-2 7-5
Kigali 1 CH, challenger Clay, February
SF L Marco Trungelliti 6-3 4-6 3-6
QF W Yshai Oliel 4-6 6-3 6-1
R16 W Daniel Cukierman 7-5 6-7(4) 7-6(5)
R32 W Clement Tabur 6-4 7-6(4)
Delray Beach, qualifying Hard, February
Q1 L Shintaro Mochizuki 3-6 6-7(2)
Cleveland CH, challenger Hard, January
R16 L Ethan Quinn 2-6 6-4 3-6
R32 W Strong Kirchheimer 3-6 6-1 7-6(3)
Q2 W Ezekiel Clark 6-1 6-4
Indian Wells 2 CH, challenger Hard, January
Q2 L Bruno Kuzuhara 6-7(6) 4-6
Q1 W Olukayode Alafia Damina Ayeni 6-4 6-3
Indian Wells 1 CH, challenger Hard, January
R16 L Paul Jubb 6-4 3-6 3-6
R32 W Gabriel Debru 6-1 3-6 6-2
Q2 W Edan Leshem 7-5 6-3
Q1 W Ezekiel Clark 2-6 7-6(7) 6-4

2023

Champaign CH, challenger Hard, November
R32 L Karlis Ozolins 6-2 3-6 4-6
Knoxville CH, challenger Hard, November
Q1 L Dmitry Popko 4-6 3-6
Charlottesville CH, challenger Hard, October
R32 L Lucas Gerch 2-6 7-5 6-7(5)
Q2 W Pedro Rodenas 6-3 6-1
Q1 W Adit Sinha 6-2 6-4
Charleston CH, challenger Hard, September
Q2 L Stefan Dostanic 2-6 1-6
Q1 W Michael Zheng 7-5 6-3
Columbus CH, challenger Hard, September
Q1 L Jack Anthrop 4-6 6-4 4-6
Winston-Salem, qualifying Hard, August
Q1 L Inaki Montes De La Torre 6-3 1-6 3-6
Indian Wells Masters, qualifying Hard, March
Q1 L Roberto Marcora 1-6 3-6
Delray Beach, qualifying Hard, February
Q1 L Matija Pecotic 6-7(1) 5-5 RET
Dallas, qualifying Hard, February
Q2 L Zachary Svajda 3-6 4-6
Q1 W Thai Son Kwiatkowski 6-3 6-4
Cleveland CH, challenger Hard, January
QF L Yibing Wu 4-6 1-6
R16 W Ryan Harrison 6-4 6-4
R32 W Patrick Kypson 6-4 7-6(8)
Tenerife 1 CH, challenger Hard, January
R32 L Lorenzo Giustino 6-7(2) 6-2 1-4 RET
Australian Open, qualifying Hard, January
Q1 L Oleksii Krutykh 5-7 2-6

2022

Champaign CH, challenger Hard, November
R32 L Prajnesh Gunneswaran 6-3 3-6 4-6
Knoxville CH, challenger Hard, November
QF L Enzo Couacaud 3-6 5-7
R16 W Prajnesh Gunneswaran 6-4 6-3
R32 W Martin Damm 6-7(7) 6-3 6-2
Charlottesville CH, challenger Hard, October
R16 L Lucas Gerch 4-6 6-7(3)
R32 W Mitchell Krueger 7-5 0-6 7-6(1)
Las Vegas CH, challenger Hard, October
F L Tennys Sandgren 5-7 3-6
SF W Steve Johnson 6-3 1-6 7-5
QF W Alexis Galarneau 6-7(5) 6-4 6-3
R16 W Evan Zhu 7-6(5) 6-2
R32 W Cannon Kingsley 7-5 4-6 6-1
Fairfield CH, challenger Hard, October
R32 L Sam Riffice 6-3 2-6 3-6
Tiburon CH, challenger Hard, October
R16 L Alexis Galarneau 1-6 5-7
R32 W Giovanni Oradini 6-1 6-4
San Diego Hard, September
R32 L J J Wolf 2-6 6-7(6)
Cary CH, challenger Hard, September
R16 L Yasutaka Uchiyama 4-6 0-2 RET
R32 W Cannon Kingsley 2-6 6-2 6-2
Us Open Hard, August
R128 L Daniil Medvedev 2-6 4-6 0-6
Cincinnati Masters, qualifying Hard, August
Q1 L Dusan Lajovic 3-6 5-7
Chicago CH, challenger Hard, August
R32 L Ernesto Escobedo 4-6 6-7(2)
Washington Hard, August
R64 L Jack Draper 5-7 2-6
Atlanta, qualifying Hard, July
Q1 L Ramkumar Ramanathan 0-6 1-6
Indianapolis CH, challenger Hard, July
R32 L Aleksandar Kovacevic 3-6 7-6(4) 4-6
Newport Grass, July
R32 L Steve Johnson 5-7 3-6
Wimbledon Grass, June
R128 L Diego Schwartzman 3-6 2-6 2-6
Q3 L Dennis Novak 5-7 4-6 7-5 6-3 3-6
Q2 W Dominic Stricker 7-6(9) 4-6 6-3
Q1 W Evan Furness 7-5 6-3
Queen's Club, qualifying Grass, June
Q1 L Steve Johnson 0-6 0-6
s Hertogenbosch, qualifying Grass, June
Q1 L Matthew Ebden 4-6 4-6
Surbiton CH, challenger Grass, May
R16 L Brandon Nakashima 4-6 3-6
R32 W Mats Moraing 6-3 7-6(4)
Roland Garros, qualifying Clay, May
Q1 L Nino Serdarusic 5-7 0-6
Bordeaux CH, challenger Clay, May
R32 L Jaume Munar 2-6 3-6
Savannah CH, challenger Clay, April
R32 L Jose Pereira 1-6 0-6
Mexico City CH, challenger Clay, April
R32 L Gerald Melzer 4-6 0-0 RET
Pereira CH, challenger Clay, March
R32 L Nicolas Mejia 1-6 1-6
Miami Masters, qualifying Hard, March
Q1 L Mitchell Krueger 2-6 2-6
Indian Wells Masters, qualifying Hard, March
Q2 L Holger Rune 4-6 2-6
Q1 W Sebastian Sec 6-3 6-7(4) 6-2
Acapulco Hard, February
R16 L Rafael Nadal 0-6 3-6
R32 W Grigor Dimitrov 7-6(8) 5-7 6-3
Q2 L Oscar Otte 1-6 6-0 6-7(2)
Q1 W Steve Johnson 6-4 6-3
Delray Beach Hard, February
QF L Tommy Paul 3-6 1-6
R16 W Steve Johnson 6-1 6-3
R32 W Emilio Gomez 4-6 7-5 6-3
Q2 W Bjorn Fratangelo 6-3 1-0 RET
Q1 W Go Soeda 7-5 6-2
Columbus CH, challenger Hard, January
R16 L Dominic Stricker 6-4 4-6 3-6
R32 W Alexander Bernard 6-2 6-1
Australian Open Hard, January
R64 L Matteo Berrettini 1-6 6-4 4-6 1-6
R128 W Jiri Vesely 7-5 6-3 6-4
Sydney, qualifying Hard, January
Q1 L Denis Kudla 6-4 6-7(7) 3-6
Bendigo CH, challenger Hard, January
R32 L Flavio Cobolli 4-6 6-3 1-6

2021

Champaign CH, challenger Won the title Hard, November
F W Aleksandar Vukic 5-7 6-3 6-4 Won the title
SF W J J Wolf 6-2 6-3
QF W Mitchell Krueger 6-4 6-4
R16 W Keegan Smith 6-3 6-1
R32 W Jc Aragone 3-6 6-3 6-4
Knoxville CH, challenger Hard, November
R16 L Aidan Mchugh 4-6 4-6
R32 W Aleksandar Vukic 6-3 4-6 7-5
Charlottesville CH, challenger Won the title Hard, November
F W Aleksandar Vukic 6-2 6-3 Won the title
SF W J J Wolf 6-1 6-7(1) 6-0
QF W Emilio Nava 6-4 6-2
R16 W Jason Kubler 6-3 6-1
R32 W Bjorn Fratangelo 7-5 6-2
Las Vegas CH, challenger Hard, October
F L J J Wolf 4-6 4-6
SF W Aleksandar Kovacevic 6-2 6-4
QF W Emilio Gomez 7-6(3) 6-4
R16 W Aidan Mchugh 6-2 5-7 7-6(13)
R32 W Sasi Kumar Mukund 6-2 6-4
Indian Wells Masters, qualifying Hard, October
Q2 L Christopher Eubanks 6-2 0-6 5-7
Q1 W Jason Jung 6-3 3-6 5-2 RET
Columbus CH, challenger Won the title Hard, September
F W Max Purcell 4-6 6-2 6-4 Won the title
SF W J J Wolf 2-6 6-3 7-5
QF W Mikael Torpegaard 2-6 7-6(4) 6-4
R16 W Jason Kubler 6-2 7-5
R32 W Mitchell Krueger 6-0 6-3
Cary 2 CH, challenger Hard, September
R32 L Zachary Svajda 5-7 0-2 RET
Kyiv CH, challenger Clay, September
R32 L Franco Agamenone 4-6 5-7
Manacor CH, challenger Hard, August
R16 L Fernando Verdasco 6-1 6-7(6) 2-6
R32 W Daniel Rincon 6-3 1-6 6-1
Us Open, qualifying Hard, August
Q1 L Bernabe Zapata Miralles 5-7 6-1 3-6
Lexington CH, challenger Hard, July
R16 L Alejandro Tabilo 2-6 2-6
R32 W Christopher Eubanks 7-6(3) 7-6(6)
Q2 W Edan Leshem 3-6 7-6(4) 6-1
Q1 W Sam Riffice 6-2 6-3
Cary 1 CH, challenger Hard, July
SF L Ramkumar Ramanathan 6-1 3-6 1-6
QF W Christopher Eubanks 5-7 6-1 6-3
R16 W Maxime Cressy 3-6 6-3 6-4
R32 W Donald Young 4-6 6-4 6-4
Orlando 2 CH, challenger Hard, June
R32 L Thiago Agustin Tirante 3-6 1-6
Q2 W Adrian Andreev 4-6 6-4 6-4
Q1 W Robert Galloway 6-4 7-6(4)
Little Rock CH, challenger Hard, May
R32 L Thai Son Kwiatkowski 2-6 1-6
Q2 W Strong Kirchheimer 6-3 6-2
Q1 W Brian Battistone 6-2 6-2
Acapulco Hard, March
R32 L Cameron Norrie 3-6 3-6
Q3 W Botic Van De Zandschulp 6-3 1-0 RET
Q2 W Joao Sousa 6-2 2-6 6-3
Q1 W Jordi Arconada 6-4 6-1
Delray Beach, qualifying Hard, January
Q2 L Donald Young 6-4 4-6 4-6
Q1 W Johannes Haerteis 5-0 RET

2020

Orlando CH, challenger Hard, November
R32 L Thiago Monteiro 1-6 3-6
Q2 W Kevin King 7-6(1) 6-7(7) 6-4
Q1 W Martin Damm 6-4 6-7(2) 6-4
Cary CH, challenger Hard, November
Q1 L Nicolas Mejia 6-2 5-7 6-7(2)
Delray Beach Hard, February
R32 L Ugo Humbert 7-6(5) 3-6 1-6
Q2 L Emilio Gomez 3-6 2-6
Q1 W Alex Bolt 4-6 6-4 6-2
Dallas CH, challenger Hard, February
R64 L Donald Young 2-6 2-6
Ann Arbor CH, challenger Hard, January
SF L Roberto Cid 6-7(1) 7-5 3-6
QF W Bjorn Fratangelo 7-6(4) 6-2
R16 W Brandon Nakashima 4-6 6-3 6-2
R32 W Renzo Olivo 7-6(2) 6-2
R64 W Arthur Rinderknech 6-3 6-4

2019

Champaign-Urbana CH, challenger Hard, November
QF L J J Wolf 2-6 2-6
R16 W Evan Song 6-4 4-6 6-1
R32 W Denis Kudla 6-3 6-3
R64 W Simon Carr 6-2 4-6 7-6(4)
Las Vegas CH, challenger Hard, October
QF L James Duckworth 2-6 3-6
R16 W Alexander Ritschard 5-7 6-4 6-1
R32 W Blaz Rola 6-4 6-3
R64 W Evan Song 6-4 6-3
US Open, qualifying Hard, August
Q1 L Egor Gerasimov 4-6 4-6
Binghamton CH, challenger Hard, July
R64 L Roberto Ortega Olmedo 7-6(5) 0-3 RET
Winnetka CH, challenger Hard, July
R16 L Jason Kubler 2-6 3-6
R32 W Adrian Menendez Maceiras 7-5 4-0 RET
R64 W Evgeny Karlovskiy 6-2 6-4
Little Rock CH, challenger Hard, June
R32 L Zhe Li 3-6 7-5 0-6
R64 W Garrett Johns 7-5 6-3
Savannah CH, challenger Clay, April
R64 L Aleksandar Vukic 2-6 6-7(11)
Tallahassee CH, challenger Clay, April
R32 L Tennys Sandgren 3-6 2-6
R64 W Alexander Zhurbin 4-6 6-4 6-0
Drummondville CH, challenger Hard, March
R64 L Gijs Brouwer 5-7 3-6
Cuernavaca CH, challenger Hard, February
R16 L Roberto Quiroz 4-6 6-7(5)
R32 W Alexander Sarkissian 6-4 3-0 RET
R64 W Evan Song 7-5 6-3
Dallas CH, challenger Hard, February
R64 L Alex Rybakov 2-6 1-6
Cleveland CH, challenger Hard, January
R32 L Brayden Schnur 6-7(5) 4-6
R64 W Louis Wessels 6-4 5-7 7-5
Newport Beach CH, challenger Hard, January
Q1 L Maxime Cressy 5-7 1-6
Columbus CH, challenger Hard, January
R64 L J J Wolf 2-6 6-7(4)

2018

Orlando CH, challenger Hard, December
R16 L Nino Serdarusic 2-6 5-7
R32 W Mitchell Krueger 6-2 5-7 6-3
R64 W Alejandro Gonzalez 6-2 4-6 6-4
Houston CH, challenger Hard, November
R32 L Paolo Lorenzi 4-6 6-3 4-6
Knoxville CH, challenger Hard, November
Q1 L Evan Song 4-6 6-3 3-6
Charlottesville CH, challenger Hard, October
Q2 L Petros Chrysochos 6-1 3-6 2-6
Q1 W Emil Reinberg 3-6 7-6(4) 6-1
Las Vegas CH, challenger Hard, October
R32 L Kamil Majchrzak 0-6 2-6
Calgary CH, challenger Hard, October
R32 L Jan Choinski 3-6 3-6
Monterrey CH, challenger Hard, October
R32 L Lucas Gomez 2-6 4-6
Aptos CH, challenger Hard, August
R32 L Kaichi Uchida 4-6 1-6
Washington, qualifying Hard, July
Q1 L Jared Hiltzik 3-6 3-6
Wimbledon, qualifying Grass, July
Q2 L Yannick Maden 1-6 3-6
Q1 W Dustin Brown 6-3 6-1
Ilkley CH, challenger Grass, June
Q1 L Brydan Klein 6-4 1-6 5-7
Nottingham CH, challenger Grass, June
R32 L Christopher Eubanks 3-6 3-6
Surbiton CH, challenger Grass, June
Q1 L Daniel Evans 1-6 0-6
Vicenza CH, challenger Clay, May
Q2 L Martin Cuevas 4-6 1-6
Roland Garros, qualifying Clay, May
Q1 L Yasutaka Uchiyama 4-6 5-7
Vicenza CH, challenger Clay, May
Q1 W Edoardo Sardella 6-1 6-2
Bordeaux CH, challenger Clay, May
QF L Reilly Opelka 6-7(4) 1-6
R16 W Antoine Hoang 6-3 7-6(4)
R32 W Pierre Hugues Herbert 6-2 7-6(5)
Aix En Provence CH, challenger Clay, May
R32 L Constant Lestienne 6-7(2) 4-6
Sarasota CH, challenger Clay, April
QF L Hugo Dellien 7-5 1-6 6-7(6)
R16 W Donald Young 6-4 6-4
R32 W Mitchell Krueger 6-4 6-3
Houston Clay, April
R32 L Guido Pella 3-6 2-6
Q2 W Akira Santillan 6-2 6-0
Q1 W Thomaz Bellucci 6-7(3) 6-3 7-6(5)
Miami Masters, qualifying Hard, March
Q1 L Cameron Norrie 1-6 0-2 RET
Indian Wells Masters, qualifying Hard, March
Q1 L Adrian Menendez Maceiras 2-6 6-7(8)
Indian Wells CH, challenger Hard, February
R16 L Peter Polansky 2-6 4-6
R32 W Mirza Basic 7-5 6-4
Delray Beach, qualifying Hard, February
Q1 L Ramkumar Ramanathan 3-6 2-6
Dallas CH, challenger Hard, January
R32 L Frances Tiafoe 2-6 6-7(5)
Newport Beach CH, challenger Hard, January
R16 L Miomir Kecmanovic 3-6 4-6
R32 W Guilherme Clezar 6-2 6-3
Australian Open, qualifying Hard, January
Q3 L Dustin Brown 4-6 6-3 3-6
Q2 W Yannick Hanfmann 4-6 7-6(2) 6-4
Q1 W Blake Ellis 7-6(3) 4-6 7-6(3)
Noumea CH, challenger Hard, January
R32 L Corentin Moutet 6-7(4) 6-3 2-6

2017

Knoxville CH, challenger Hard, November
R32 L Tim Smyczek 6-7(3) 2-6
Charlottesville CH, challenger Hard, October
SF L Tim Smyczek 3-6 6-2 2-6
QF W Denis Kudla 6-4 6-3
R16 W Liam Broady 6-4 4-6 6-4
R32 W Thai Son Kwiatkowski 6-1 3-6 6-3
Las Vegas CH, challenger Won the title Hard, October
F W Liam Broady 3-6 7-5 6-4 Won the title
SF W Tennys Sandgren 6-3 7-6(6)
QF W Kevin King 6-2 6-3
R16 W Dominik Koepfer 6-4 6-1
R32 W Jc Aragone 7-5 6-3
Fairfield CH, challenger Hard, October
R32 L Mackenzie Mcdonald 4-6 7-5 1-6
Stockton CH, challenger Hard, October
QF L Darian King 4-6 4-6
R16 W Denis Kudla 6-4 6-4
R32 W Brayden Schnur 6-3 6-2
US Open, qualifying Hard, August
Q1 L Guido Andreozzi 4-6 1-6
Cincinnati Masters Hard, August
R64 L Sam Querrey 3-6 0-6
Washington Hard, July
R64 L Yuki Bhambri 5-7 0-2 RET
Atlanta Hard, July
R32 L Quentin Halys 5-7 6-7(7)
Q2 W Brydan Klein 6-7(9) 6-2 7-6(4)
Q1 W Catalin Ionut Gard 6-3 6-1
Newport Grass, July
R32 L Adrian Menendez Maceiras 2-6 6-7(5)
Wimbledon, qualifying Grass, July
Q2 L Dennis Novikov 5-7 2-6
Q1 W Marc Polmans 6-4 7-5
Queen's Club Grass, June
R16 L Marin Cilic 0-6 4-6
R32 W Steve Johnson 3-6 6-1 6-1
Q2 W Pierre Hugues Herbert 6-4 6-2
Q1 W Kenny De Schepper 6-7(4) 6-3 6-4
s Hertogenbosch Grass, June
R16 L Ivo Karlovic 4-6 1-6
R32 W Dustin Brown 6-3 3-6 6-3
Surbiton CH, challenger Grass, June
R32 L Akira Santillan 2-6 6-2 3-6
Roland Garros, qualifying Clay, May
Q2 L Sergiy Stakhovsky 7-6(5) 4-6 4-6
Q1 W Corentin Moutet 2-6 7-5 6-4
Heilbronn CH, challenger Clay, May
R32 L Tobias Kamke 4-6 7-5 6-7(4)
Savannah CH, challenger Clay, May
QF L Joao Pedro Sorgi 2-6 2-6
R16 W Ramkumar Ramanathan 6-1 6-2
R32 W Mikelis Libietis 6-3 6-4
Tallahassee CH, challenger Clay, April
QF L Mitchell Krueger 4-6 5-7
R16 W Jurgen Melzer 2-6 6-3 6-4
R32 W Federico Coria 6-3 4-6 6-4
Bradenton CH, challenger Clay, April
R16 L Horacio Zeballos 1-6 6-7(3)
R32 W Peter Polansky 6-4 6-4
Q3 L Blaz Rola 6-2 4-6 2-6
Q2 W Axel Geller 6-1 6-2
Q1 W Sathi Reddy 6-0 6-0
San Luis Potosi CH, challenger Clay, April
R32 L Miomir Kecmanovic 2-6 5-7
Panama City CH, challenger Clay, April
R32 L Blaz Rola 1-6 6-7(6)
Leon CH, challenger Hard, March
R16 L Rajeev Ram 1-6 6-7(4)
R32 W Danilo Petrovic 6-4 6-2
Miami Masters, qualifying Hard, March
Q2 L Jared Donaldson 5-7 3-6
Q1 W Nicola Kuhn 6-3 3-6 6-3
Indian Wells Masters Hard, March
R128 L Donald Young 5-7 6-7(5)
Acapulco Hard, February
R32 L Ernesto Escobedo 1-6 6-2 0-6
Q2 W Jared Donaldson 7-5 6-3
Q1 W Hyeon Chung 6-2 6-2
Delray Beach Hard, February
R32 L Steve Johnson 1-6 4-6
Tempe CH, challenger Hard, February
QF L Teymuraz Gabashvili 3-6 1-6
R16 W Roberto Quiroz 6-4 7-6(5)
R32 W Bradley Klahn 6-1 7-5
Australian Open, qualifying Hard, January
Q1 L Yuki Bhambri 1-6 4-6
Brisbane, qualifying Hard, January
Q1 L John Patrick Smith 2-6 3-6

2016

Columbus CH, challenger Won the title Hard, November
F W Tennys Sandgren 6-1 2-6 6-2 Won the title
SF W Sam Barry 7-5 7-6(6)
QF W Kevin King 6-2 7-5
R16 W Dominik Koepfer 6-3 6-4
R32 W Jose Rubin Statham 6-2 7-6(6)
Champaign CH, challenger Hard, November
R16 L Michael Mmoh 1-6 4-6
R32 W Austin Krajicek 6-4 7-6(3)
Knoxville CH, challenger Hard, November
SF L Michael Mmoh 0-6 3-6
QF W Edward Corrie 6-4 6-3
R16 W Tennys Sandgren 6-2 6-4
R32 W Sam Barry 6-4 7-5
Suzhou CH, challenger Hard, October
F L Yen Hsun Lu 0-6 1-6
SF W Alexander Kudryavtsev 6-3 0-1 RET
QF W Sergiy Stakhovsky 3-6 6-2 7-5
R16 W Cheong Eui Kim 6-4 6-3
R32 W Yecong He 5-7 6-0 6-4
Ningbo CH, challenger Hard, October
QF L Yen Hsun Lu 6-3 4-6 4-6
R16 W Di Wu 7-6(4) 6-3
R32 W Jimmy Wang 6-2 6-4
Ho Chi Minh CH, challenger Hard, October
R32 L Taro Daniel 4-6 3-6
Tiburon CH, challenger Hard, September
R16 L Michael Mmoh 5-7 4-6
R32 W Guilherme Clezar 6-2 6-2
Cary CH, challenger Hard, September
QF L Ernesto Escobedo 6-3 1-6 2-6
R16 W Philip Bester 6-4 6-1
R32 W Erik Crepaldi 3-6 6-4 6-2
US Open, qualifying Hard, August
Q1 L Michael Berrer 6-2 6-7(5) 2-6
Cincinnati Masters, qualifying Hard, August
Q2 L Malek Jaziri 4-6 2-6
Q1 W Damir Dzumhur 6-4 3-6 7-5
Aptos CH, challenger Hard, August
R32 L Mackenzie Mcdonald 1-6 4-6
Lexington CH, challenger Hard, July
R16 L Alex Kuznetsov 6-3 3-6 4-6
R32 W Andrey Golubev 6-2 6-2
Binghamton CH, challenger Hard, July
QF L Darian King 2-6 1-4 RET
R16 W Daniel Nguyen 7-6(7) 6-4
R32 W Dennis Nevolo 3-6 7-5 6-0
Newport Grass, July
R16 L Donald Young 0-6 4-6
R32 W Benjamin Becker 6-1 6-2
Winnetka CH, challenger Hard, July
R16 L Go Soeda 3-6 2-6
R32 W Sekou Bangoura 6-4 3-6 6-2
Wimbledon, qualifying Grass, June
Q1 L Daniil Medvedev 2-6 2-6
Queen's Club, qualifying Grass, June
Q1 L Vasek Pospisil 6-7(5) 6-7(6)
s Hertogenbosch Grass, June
QF L Sam Querrey 3-6 0-6
R16 W Steve Johnson 6-3 6-4
R32 W Yoshihito Nishioka 6-1 2-6 6-3
Manchester CH, challenger Grass, May
R16 L Denis Kudla 4-6 3-6
R32 W Adrien Bossel 6-4 6-4
Vicenza CH, challenger Clay, May
QF L Edoardo Eremin 1-6 6-3 3-6
R16 W Kimmer Coppejans 6-4 6-4
R32 W Renzo Olivo 6-3 6-4
Roland Garros, qualifying Clay, May
Q1 L Grega Zemlja 6-3 3-6 1-6
Bordeaux CH, challenger Clay, May
Q2 L Jonathan Eysseric 3-6 1-6
Q1 W David Guez 1-6 7-6(4) 6-3
Tallahassee CH, challenger Clay, April
QF L James Mcgee 3-6 6-2 6-7(1)
R16 W Gerald Melzer 6-2 3-6 6-2
R32 W Jose Hernandez 6-7(4) 7-6(4) 6-4
Q3 W Blake Mott 7-5 4-6 6-3
Q2 W Mico Santiago 7-5 6-2
Le Gosier CH, challenger Hard, April
F L Malek Jaziri 2-6 4-6
SF W Yoshihito Nishioka 3-6 7-5 6-3
QF W Vincent Millot 5-7 7-5 6-2
R16 W Constant Lestienne 6-2 3-6 6-1
R32 W Austin Krajicek 6-3 6-4
Drummondville CH, challenger Hard, March
R32 L Renzo Olivo 3-6 6-1 5-7
Santo Domingo CH, challenger Clay, February
Q2 L Pere Riba 2-6 3-6
Q1 W Jesus Francisco Felix 6-1 6-2
Dallas CH, challenger Hard, February
Q1 L Ryan Haviland 4-6 6-1 2-6
Lahaina CH, challenger Hard, January
R32 L Nicolas Meister 3-6 1-6

2015

Knoxville CH, challenger Hard, November
R16 L Dennis Novikov 3-6 6-7(4)
R32 W Malek Jaziri 6-1 6-2
Charlottesville CH, challenger Hard, November
QF L Noah Rubin 4-6 4-6
R16 W David Rice 2-6 6-4 6-2
R32 W Collin Altamirano 6-3 6-0
Columbus CH, challenger Hard, September
R32 L Dennis Novikov 6-7(2) 6-7(3)
Cary CH, challenger Hard, September
R32 L Austin Krajicek 5-7 6-2 2-6
US Open, qualifying Hard, August
Q1 L Guido Andreozzi 2-6 7-5 3-6
Cincinnati Masters, qualifying Hard, August
Q1 L Yen Hsun Lu 4-6 3-6
Winnetka CH, challenger Hard, July
R32 L Ryan Harrison 4-6 4-6
Tallahassee CH, challenger Clay, April
R32 L Facundo Arguello 4-6 5-7
Savannah CH, challenger Clay, April
R32 L Tim Smyczek 4-6 1-6
Delray Beach Hard, February
R32 L Tim Smyczek 5-7 2-6
Memphis Hard, February
R32 L Jared Donaldson 5-7 0-6
Maui CH, challenger Hard, January
QF L James Mcgee 6-7(6) 2-6
R16 W Michael Russell 7-6(2) 6-3
R32 W Sekou Bangoura 6-4 6-2

2014

Charlottesville CH, challenger Hard, October
R32 L Peter Torebko 3-6 6-7(2)
Valencia Hard, October
R32 L Martin Klizan 3-6 3-6
Sacramento CH, challenger Hard, September
F L Sam Querrey 3-6 4-6
SF W Tim Smyczek 3-6 6-3 7-6(1)
QF W Rhyne Williams 4-6 7-6(3) 6-4
R16 W John Patrick Smith 6-4 3-6 6-4
R32 W Ryan Harrison 6-1 3-6 6-3
US Open, qualifying Hard, August
Q2 L Borna Coric 6-2 2-6 2-6
Q1 W Mitchell Frank 3-6 6-0 6-2
Washington, qualifying Hard, July
Q1 L Sam Groth 6-3 6-7(5) 4-6
Indian Wells Masters, qualifying Hard, March
Q1 L Sam Groth 3-6 4-6
Delray Beach, qualifying Hard, February
Q1 L Sekou Bangoura 2-6 6-4 3-6

2013

Newport Grass, July
R32 L Michal Przysiezny 3-6 7-6(9) 4-6