Stadium: Court 2 Round: 27 Ground: Clay
| ITF Italy F4 | 2018/03/22 14:30 | Apostol, Bogdan Ionut v Hampel, Lenny | 6-7,6-7 |
| ITF Turkey F47 | 2017/12/13 07:15 | Hampel, Lenny v Apostol, Bogdan Ionut | 6-2,6-0 |
| ITF Turkey F39 | 2014/12/10 11:30 | Apostol, Bogdan Ionut v Hampel, Lenny | 6-2,6-7,4-6 |
| ITF Turkey F43 | 2014/11/30 11:30 | Apostol, Bogdan Ionut v Hampel, Lenny | 5-7,6-2,6-7 |
| ITF M25 Kottingbrunn | 2021/07/22 08:00 | Podzus, Martins v Apostol, Bogdan Ionut | 6-3,1-6,4-6 |
| ITF M25 Kottingbrunn | 2021/07/21 10:00 | Apostol, Bogdan Ionut v Kalenichenko, Danylo | 1-6,6-4,6-2 |
| ITF M25 Telfs | 2021/07/19 09:00 | Apostol, Bogdan Ionut v Filip Misolic | 6-7,1-6 |
| ITF M25 Telfs | 2021/07/18 14:30 | Apostol, Bogdan Ionut v Lukas Neumayer | 6-7,6-2,6-4 |
| ITF M25 Telfs | 2021/07/18 09:20 | Apostol, Bogdan Ionut v Alexander Shevchenko | 4-6,6-3,13-11 |
| ITF M25 Telfs | 2021/07/16 08:50 | Apostol, Bogdan Ionut v Veldheer, Mick | 6-4,5-7,7-5 |
| ITF M25 Telfs | 2021/07/14 07:55 | Vanneste, Jeroen v Apostol, Bogdan Ionut | 2-6,3-6 |
| ITF M15 Poprad | 2021/07/06 10:20 | George Loffhagen v Apostol, Bogdan Ionut | 6-3,6-1 |
| ITF M25 Kottingbrunn | 2021/07/22 09:40 | Hampel, Lenny v David Pichler | 7-6,6-2 |
| ITF M25 Kottingbrunn | 2021/07/21 08:00 | Manda, Calin v Hampel, Lenny | 4-6,5-7 |
| ITF M25 Telfs | 2021/07/14 07:55 | Filip Misolic v Hampel, Lenny | 6-4,6-7,6-4 |
| ITF M25 Velenje | 2021/07/09 10:55 | Rodriguez, Cristian v Hampel, Lenny | 6-4,4-6,6-4 |
| ITF M25 Velenje | 2021/07/06 09:45 | Hampel, Lenny v Aldin Setkic | 3-6,6-3,6-2 |
| ITF M25 Klosters | 2021/06/24 09:50 | Hampel, Lenny v Matheus P De Almeida | 1-6,2-6 |
| ITF M25 Klosters | 2021/06/22 09:20 | Tanner, Gian Luca v Hampel, Lenny | 5-7,4-6 |
| ITF M25 Jablonec Nad Nisou | 2021/05/19 08:00 | Hampel, Lenny v Titouan Droguet | 6-2,5-7,2-6 |