Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| ITF - M15 Sharm-el-Sheikh | 2023/10/18 09:55 | Sergey Fomin v Harrison Adams | 4-6,3-6 |
| ITF - M15 Sharm-el-Sheikh | 2023/10/12 07:00 | Sergey Fomin v Karim Ibrahim | 6-2,6-1 |
| ITF - M15 Sharm-el-Sheikh | 2023/10/06 07:00 | Sergey Fomin v Gabriel Decamps | 4-6,2-6 |
| ITF - M15 Sharm-el-Sheikh | 2023/10/05 07:00 | Sergey Fomin v Peter Buldorini | 6-4,6-4 |
| ITF - M15 Sharm-el-Sheikh | 2023/10/04 11:10 | Sergey Fomin v Michael Bassem Sobhy | 6-4,6-4 |
| Davis Cup | 2023/09/16 15:35 | Joris De Loore v Sergey Fomin | 7-5,7-6 |
| Challenger - Istanbul | 2023/09/03 07:00 | Sergey Fomin v Yshai Oliel | 6-3,3-6,2-6 |
| Challenger - Zhuhai | 2023/08/22 07:15 | Ricardas Berankis v Sergey Fomin | 3-6,6-0,6-3 |
| ITF - M25 Zlatibor | 2023/09/28 10:30 | David Pichler v Petr Bar Biryukov | 6-1,7-6 |
| ITF - M25 Zlatibor | 2023/09/27 14:30 | Petr Bar Biryukov v Renlong Pang | 6-3,6-1 |
| ITF - M25 Zlatibor | 2023/09/27 11:00 | Petr Bar Biryukov v Simon Norrman | 6-4,7-6 |
| ITF M15 - Pirot | 2023/09/06 07:30 | Petr Bar Biryukov v Dusan Obradovic | 6-7,4-6 |
| ITF - M15 Kursumlijska Banja | 2023/08/30 11:35 | Petr Bar Biryukov v Nicolo Pozzani | 4-6,3-6 |
| ITF M15 - Belgrado | 2023/06/25 07:00 | Petr Bar Biryukov v Maxence Rivet | 6-4,3-6,5-10 |
| ITF - M15 Kursumlijska Banja | 2023/06/19 08:55 | Petr Bar Biryukov v Louis Tessa | 2-6,2-6 |
| ITF - M15 Kursumlijska Banja | 2023/06/18 11:00 | Petr Bar Biryukov v Darko Kolevski | 6-1,6-1 |