Stadium: Court 2 Round: 19 Ground: Hardcourt indoor
| Challenger Champaign | 2023/11/12 20:15 | Cozbinov, Alexander v William Mroz Mroz | 6-2,6-3 |
| Challenger Knoxville | 2023/11/07 23:15 | Aidan Mchugh v Cozbinov, Alexander | 3-6,7-5,6-3 |
| Challenger Knoxville | 2023/11/06 20:10 | Evgeny Karlovskiy v Cozbinov, Alexander | 6-4,7-6 |
| Challenger Knoxville | 2023/11/06 00:50 | Ezekiel Clark v Cozbinov, Alexander | 1-6,2-6 |
| Challenger Charlottesville | 2023/10/29 14:00 | Dylan Dietrich v Cozbinov, Alexander | 6-4,6-7,6-3 |
| ITF M15 Las Vegas | 2023/10/18 20:25 | Cozbinov, Alexander v Mitsui, Shunsuke | 2-6,4-6 |
| Challenger Fairfield | 2023/10/08 17:00 | Stefan Dostanic v Cozbinov, Alexander | 7-6,6-1 |
| Challenger Tiburon | 2023/10/02 17:00 | Garrett Johns v Cozbinov, Alexander | 6-4,1-6,6-1 |
| Challenger Champaign | 2023/11/12 21:35 | Mathis Debru v Perez, Alfredo | 4-6,3-6 |
| Challenger Calgary | 2023/11/06 18:25 | Perez, Alfredo v Kiranpal Pannu | 3-6,7-6,6-7 |
| Challenger Calgary | 2023/11/05 17:00 | Perez, Alfredo v Kaetan Mehta | 6-1,6-3 |
| Challenger Charlottesville | 2023/10/29 17:50 | Pedro Rodenas v Perez, Alfredo | 6-0,6-7,6-4 |
| Challenger Fairfield | 2023/10/10 17:00 | Mitchell Krueger v Perez, Alfredo | 7-6,6-2 |
| Challenger Fairfield | 2023/10/09 18:45 | Colin Markes v Perez, Alfredo | 3-6,6-2,4-6 |
| Challenger Fairfield | 2023/10/08 20:00 | Garrett Johns v Perez, Alfredo | 2-6,6-7 |
| Challenger Tiburon | 2023/10/03 19:20 | Perez, Alfredo v Mark Lajal | 1-6,3-6 |