| UTR Pro Tennis Series Bradenton | 2022/03/11 18:45 | Isaac Nortey v Nikolay Sysoev | 6-3,6-4 |
| 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 |
| ITF M15 Monastir | 2023/01/02 16:20 | Yannick Wunderlich v Nikolay Sysoev | 2-6,6-4,10-7 |
| ITF M15 Monastir | 2023/01/02 10:30 | Muni A Mani v Nikolay Sysoev | 1-6,1-6 |
| ITF M15 Monastir | 2023/01/01 09:00 | Savelii Shpita v Nikolay Sysoev | 4-6,4-6 |
| ITF M15 Monastir | 2022/12/28 09:00 | Samir Hamza Reguig v Nikolay Sysoev | 7-5,2-6,6-2 |
| ITF M15 Monastir | 2022/12/26 13:30 | Yannick Wunderlich v Nikolay Sysoev | 4-6,6-0,8-10 |
| ITF M15 Monastir | 2022/12/26 08:00 | Gabriele Camilli v Nikolay Sysoev | 6-7,3-6 |
| ITF M25 Monastir | 2023/02/12 10:30 | Isaac Nortey v Karan Singh | 5-7,3-6 |
| ITF M15 Monastir | 2023/02/05 09:30 | Isaac Nortey v Chirag Duhan | 2-6,7-6,8-10 |
| ITF M25 Monastir | 2023/01/30 13:30 | Isaac Nortey v Brian Bozemoj | 1-6,2-6 |
| ITF M25 Monastir | 2023/01/30 08:30 | Tom Evans v Isaac Nortey | 0-6,2-6 |
| ITF M25 Monastir | 2023/01/29 08:30 | Isaac Nortey v Geni Inoue | 7-5,6-1 |
| ITF M15 Monastir | 2023/01/22 11:30 | Isaac Nortey v Luca Wiedenmann | 3-6,2-6 |
| ITF M15 Monastir | 2023/01/16 08:30 | Alexandre Aubriot v Isaac Nortey | 6-4,6-3 |
| ITF M15 Monastir | 2023/01/15 08:30 | Leo Deflandre v Isaac Nortey | 4-6,2-6 |