Stadium: Court 1 Round: 25 Ground: Clay
| ITF M15 Curtea de Arges | 2021/08/12 08:25 | Dragos Nicolae Madaras v Sebastian Gima | 6-2,2-6,7-5 |
| ITF M15 Curtea de Arges | 2021/08/10 15:10 | Sebastian Gima v Mark Lajal | 6-1,6-3 |
| ITF M25 Pitesti | 2021/08/06 09:05 | Nicholas David Ionel v Sebastian Gima | 7-5,6-3 |
| ITF M25 Pitesti | 2021/08/05 12:20 | Sebastian Gima v Nicolae Frunza | 6-4,5-7,6-1 |
| ITF M25 Pitesti | 2021/08/03 13:00 | Sebastian Gima v Radu Mihai Papoe | 4-6,6-0,6-2 |
| ITF M15 Bucharest | 2021/05/26 14:15 | Jack Pinnington Jones v Sebastian Gima | 6-3,3-6,6-7 |
| UTR Pro Tennis Series Bucharest | 2021/05/19 07:00 | Hugo Voljacques v Sebastian Gima | 0-0 |
| UTR Pro Tennis Series Bucharest | 2021/05/17 09:00 | Dan Alexandru Tomescu v Sebastian Gima | 6-3,6-1 |
| ITF M15 Curtea de Arges | 2021/08/10 07:00 | Bogdan Ionut Apostol v Vlad Andrei Dancu | 3-6,4-6 |
| ITF M15 Curtea de Arges | 2021/08/09 07:00 | Bogdan Ionut Apostol v Louis Allen | 6-2,6-3 |
| ITF M25 Pitesti | 2021/08/03 09:50 | Chun Hsin Tseng v Bogdan Ionut Apostol | 3-6,6-3,7-5 |
| ITF M25 Kottingbrunn | 2021/07/23 08:30 | Bogdan Ionut Apostol v Lenny Hampel | 1-6,6-4,5-7 |
| ITF M25 Kottingbrunn | 2021/07/22 08:00 | Martins Podzus v Bogdan Ionut Apostol | 6-3,1-6,4-6 |
| ITF M25 Kottingbrunn | 2021/07/21 10:00 | Bogdan Ionut Apostol v Danylo Kalenichenko | 1-6,6-4,6-2 |
| ITF M25 Telfs | 2021/07/19 09:00 | Bogdan Ionut Apostol v Filip Misolic | 6-7,1-6 |
| ITF M25 Telfs | 2021/07/18 14:30 | Bogdan Ionut Apostol v Lukas Neumayer | 6-7,6-2,6-4 |