ITF - EUA F10 03/19 22:15 - Darian King v Stefan Kozlov 1-6,6-1,6-1
ITF - EUA F10 03/18 03:35 - Stefan Kozlov v Evan Song 6-3,6-4
ATP - Delray Beach 02/17 18:25 25 Tim Smyczek v Stefan Kozlov 7-5,6-2
ATP - Memphis 02/10 02:30 25 Jared Donaldson v Stefan Kozlov 7-5,6-0
ITF - EUA F4 01/16 18:00 - Stefan Kozlov v Frederik Nielsen 6-7,6-4,0-6
ITF - EUA F4 01/15 18:00 - Dennis Novikov v Stefan Kozlov 0-6,1-6
ITF - EUA F4 01/14 19:45 - Stefan Kozlov v Karim Hossam 6-3,6-1
ITF - EUA F2 01/09 18:00 - Taylor Fritz v Stefan Kozlov 6-4,6-4
ITF - EUA F2 01/08 18:00 - Clay Thompson v Stefan Kozlov 2-6,6-2,3-6
Challenger - Charlottesville 10/28 21:30 25 Peter Torebko v Stefan Kozlov 6-3,7-6
ITF - EUA F26 09/23 18:35 - Stefan Kozlov v Patrick Davidson 6-3,6-2
Open dos EUA - Qualificação 08/21 20:25 45 Stefan Kozlov v Borna Coric 6-2,2-6,2-6
Open dos EUA - Qualificação 08/20 19:15 44 Mitchell Frank v Stefan Kozlov 6-3,0-6,2-6
ATP - Washington - Qualificação 07/26 14:00 45 Sam Groth v Stefan Kozlov 3-6,7-6,6-4
ITF - Espanha F10 05/22 10:00 - Stefan Kozlov v Juan Lizariturry 2-6,7-5,4-6
ITF - Espanha F10 05/20 10:50 - Sergio Martos Gornes v Stefan Kozlov 2-6,3-6
ITF - EUA F11 04/12 16:00 - Filip Krajinovic v Stefan Kozlov 3-6,6-4,6-3
ITF - EUA F11 04/10 17:20 - Stefan Kozlov v Nicolas Meister 7-6,6-2
ITF - EUA F11 04/09 14:00 - Catalin-Ionut Gard v Stefan Kozlov 3-6,4-6
ITF - EUA F9 03/18 18:50 - Darian King v Stefan Kozlov Retired
ITF - EUA F8 03/12 19:40 - Darian King v Stefan Kozlov 6-4,7-6

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.