Results

Challenger Chicago 08/04 18:05 19 [431] Stefan Kozlov v Jelle Sels [213] 6-1,5-7,2-6
Challenger Chicago 08/03 20:20 45 [431] Stefan Kozlov v Fortuna/Giacalone [127] Retired
Challenger Newport 07/07 20:40 25 [164] Mitchell Krueger v Stefan Kozlov [367] 6-1,3-6,6-1
Challenger Tyler 06/02 18:00 19 [375] Stefan Kozlov v Alvin N Tudorica [451] 5-7,3-6
Challenger Tyler 06/01 22:45 14 Stefan Kozlov v Daniel Milavsky 6-3,6-7,6-3
Challenger Little Rock 05/29 16:00 26 [306] Andres Andrade v Stefan Kozlov [375] 6-1,4-6,7-5
Challenger Little Rock 05/28 20:10 25 [375] Stefan Kozlov v Aziz Dougaz [222] 5-7,6-3,6-2
Challenger Little Rock 05/28 15:00 19 Stefan Kozlov v Elmar Ejupovic 6-4,7-6
Challenger Little Rock 05/27 21:00 14 Stefan Kozlov v Kiranpal Pannu 7-6,2-6,6-2
ITF M25 Xalapa 05/18 20:00 - [196] Santiago Rodriguez Taverna v Stefan Kozlov [441] 7-6,4-6,4-6
ITF M25 Xalapa 05/17 23:30 - Stefan Kozlov v Maxwell McKennon 2-6,6-1,6-4
ITF M25 Xalapa 05/16 23:30 - [441] Stefan Kozlov v Aidan Mayo [312] 6-4,6-4

Wikipedia - Stefan Kozlov

Stefan Kozlov (Russian: Стефан Козлов, STEF-ahn KOZ-lov; born February 1, 1998) is an American professional tennis player of Russian descent. He has a career-high ATP ranking of world No. 103 achieved on 18 July 2022 and doubles ranking of world No. 180 on 19 June 2017.

Kozlov made his ATP World Tour debut as a wildcard in 2013 Hall of Fame Tennis Championships at the age of 15. He reached two junior Grand Slam finals in 2014 and finished the year at World No. 3 in the ITF Junior Combined rankings.