Estádio: MTA 14 Round: 62 Ground: Clay
| ITF - M15 Antália | 2024/01/22 07:00 | Christian Fellin v Tomas Cortez | 6-3,6-4 |
| ITF - M25 Antalya | 2023/11/20 09:25 | Christian Fellin v Mert Naci Turker | 3-6,4-6 |
| ITF - M25 Antalya | 2023/11/19 06:30 | Christian Fellin v Simon Norrman | 6-2,7-6 |
| ITF - M25 Antalya | 2023/11/12 07:00 | Erik Tkalenko v Christian Fellin | 2-6,7-5,10-7 |
| ITF - M15 Selva Gardena | 2023/10/29 10:55 | Christian Fellin v Stefano D'Agostino | 6-7,2-6 |
| ITF - M15 Monastir | 2023/10/23 15:00 | Edouard Villoslada v Christian Fellin | 6-4,6-2 |
| ITF - M15 Monastir | 2023/10/23 08:00 | Alexander Grekul v Christian Fellin | 3-6,3-6 |
| ITF - M15 Monastir | 2023/10/16 08:00 | Michal Krajci v Christian Fellin | 6-2,6-2 |
| ITF - M15 Antália | 2024/01/22 07:00 | Ryusuke Horiuchi v Ivan Sergeyev | 3-6,4-6 |
| ITF - M15 Antália | 2024/01/08 10:20 | Robin Baechi v Ivan Sergeyev | 1-6,0-6 |
| ITF - M15 Antália | 2024/01/07 06:30 | Batuhan Saban v Ivan Sergeyev | 0-6,2-6 |
| ITF - M25 Heraklion | 2023/11/05 09:00 | Ivan Sergeyev v Dimitris Sakellaridis | 3-6,3-6 |
| ITF - M25 Heraklion | 2023/10/30 07:00 | William Norton v Ivan Sergeyev | 6-1,6-4 |
| ITF - M15 Vejle | 2023/07/24 12:00 | Andrea Gola v Ivan Sergeyev | 7-5,6-4 |
| ITF - M15 Vejle | 2023/07/24 07:00 | Gustav Theilgaard v Ivan Sergeyev | 4-6,4-6 |
| ITF - M15 Kamen | 2023/06/26 10:00 | Aloys J W Van Baal v Ivan Sergeyev | 6-3,6-2 |