Page 12 de l'historique des matchs du joueur de tennis: Retrouvez ici la totalité des matchs et tournois joués par Stefan Kozlov.
263 matchs enregistrés.
| 31/10/2021 | Las Vegas Challenger | Stefan Kozlov vs. Aleksandar Kovacevic |
| 29/10/2021 | Las Vegas Challenger | Stefan Kozlov vs. Emilio Gomez |
| 28/10/2021 | Las Vegas Challenger | Aidan Mchugh vs. Stefan Kozlov |
| 26/10/2021 | Las Vegas Challenger | Mukund Sasikumar vs. Stefan Kozlov |
| 06/10/2021 | BNP Paribas Open - Indian Wells | Stefan Kozlov vs. Christopher Eubanks |
| 05/10/2021 | BNP Paribas Open - Indian Wells | Jason Jung vs. Stefan Kozlov |
| 26/09/2021 | Columbus Challenger | Stefan Kozlov vs. Max Purcell |
| 25/09/2021 | Columbus Challenger | Jeff Wolf vs. Stefan Kozlov |
| 24/09/2021 | Columbus Challenger | Mikael Torpegaard vs. Stefan Kozlov |
| 23/09/2021 | Columbus Challenger | Jason Murray Kubler vs. Stefan Kozlov |
| 20/09/2021 | Columbus Challenger | Stefan Kozlov vs. Mitchell Krueger |
| 13/09/2021 | Cary 2 Challenger | Stefan Kozlov vs. Zachary Svajda |
| 06/09/2021 | Kyiv Challenger | Franco Agamenone vs. Stefan Kozlov |
| 02/09/2021 | Mallorca Challenger | Stefan Kozlov vs. Fernando Verdasco |
| 31/08/2021 | Mallorca Challenger | Daniel Rincon vs. Stefan Kozlov |
| 24/08/2021 | U.S. Open - New York | Bernabe Zapata Miralles vs. Stefan Kozlov |
| 29/07/2021 | Lexington Challenger | Stefan Kozlov vs. Alejandro Tabilo |
| 28/07/2021 | Lexington Challenger | Christopher Eubanks vs. Stefan Kozlov |
| 26/07/2021 | Lexington Challenger | Stefan Kozlov vs. Edan Leshem |
| 25/07/2021 | Lexington Challenger | Stefan Kozlov vs. Sam Riffice |