| UTR Pro Florida | 2023/07/05 15:00 | Nikolay Sysoev v Isaac Nortey | 7-6,1-6,2-6 |
| UTR Pro Florida | 2023/07/03 18:29 | Nikolay Sysoev v Ethan Muza | 6-7,6-3,3-6 |
| UTR Pro Florida | 2023/07/02 19:24 | Benjamin Kittay v Nikolay Sysoev | 3-6,6-1,2-5 |
| UTR Pro Florida | 2023/05/28 14:00 | Nikolay Sysoev v Maxwell Giddens | 7-6,6-2 |
| UTR Pro Florida | 2023/05/27 17:36 | Michal Lusovsky v Nikolay Sysoev | 3-6,0-5 |
| UTR Pro Florida | 2023/05/26 14:00 | Sasha Rozin v Nikolay Sysoev | 2-6,7-6,4-6 |
| ITF M15 Edmond | 2023/01/25 21:20 | Nikolay Sysoev v Lucas Renard | 4-6,5-7 |
| ITF M15 Edmond | 2023/01/24 16:00 | Nikolay Sysoev v Stefan Cooper | 3-6,6-3,7-10 |
| UTR Pro Florida | 2023/07/05 20:00 | Stefano Liokossis v Luke Casper | 6-3,3-6,1-6 |
| UTR Pro Florida | 2023/07/04 12:00 | Stefano Liokossis v Matija Pecotic | 2-6,2-6 |
| ITF M25 Santo Domingo | 2023/06/28 13:30 | Yannik Rahman v Stefano Liokossis | 6-2,6-3 |
| ITF M25 Santo Domingo | 2023/06/27 15:40 | Fabian Hansch Mauritzson v Stefano Liokossis | 4-6,2-6 |
| ITF M25 Santo Domingo | 2023/06/26 13:30 | Yohandri P Garcia v Stefano Liokossis | 3-6,1-6 |
| ITF M25 Santo Domingo | 2023/06/20 13:00 | Stefano Liokossis v David Krasner | 0-6,1-6 |
| ITF M25 Santo Domingo | 2023/06/19 14:00 | Stefano Liokossis v Kaipo Marshall | 6-3,5-7,10-4 |
| ITF M15 San Diego | 2023/06/05 17:00 | Andrew Rogers v Stefano Liokossis | 6-2,6-4 |