Stadium: Court 2 Round: 54 Ground: Clay
| ITF - M15 Antalya | 2019/03/11 07:15 | Nitin Kumar Sinha v Busch, Ruben | 7-6,6-0 |
| ITF - M15 Antalya | 2019/03/04 08:00 | Mircea-Alexandru Jecan v Busch, Ruben | 6-0,6-0 |
| ITF Spain F24 | 2018/08/19 16:00 | Fermosell, Jaime v Busch, Ruben | 6-0,7-6 |
| ITF Spain F24 | 2018/08/18 09:00 | Barquilla Martinez, Hector v Busch, Ruben | 6-7,4-6 |
| ITF Spain F23 | 2018/08/11 08:30 | Chinmaya Dev Chauhan v Busch, Ruben | 6-2,6-2 |
| ITF Spain F21 Qual | 2018/07/28 09:15 | Busch, Ruben v Jack Gibbens | 2-6,4-6 |
| ITF Spain F19 Qual | 2018/07/14 07:30 | Ross, Gianni v Busch, Ruben | 6-0,6-2 |
| ITF Tunisia F23 | 2018/06/10 10:00 | Fetisleam, Edris v Busch, Ruben | 6-0,6-3 |
| ITF Turkey F40 | 2018/12/10 08:25 | Dan Alexandru Tomescu v Nikitin, Viktor | 6-0,6-2 |
| ITF Turkey F40 | 2018/12/09 07:00 | Akay, Cihan v Nikitin, Viktor | 3-6,1-6 |
| ITF Turkey F40 | 2018/12/08 06:00 | Nikitin, Viktor v Daljev, Pavle | 6-3,4-6,6-2 |
| ITF Turkey F39 | 2018/12/04 06:30 | Boborykin, Alexander v Nikitin, Viktor | 7-6,6-1 |
| ITF Turkey F39 | 2018/12/03 07:30 | Nikitin, Viktor v Palazov, Zlatan | 3-6,6-1,7-6 |
| ITF Turkey F39 | 2018/12/02 06:30 | Bolotov, Sergey v Nikitin, Viktor | 2-6,4-6 |
| ITF Turkey F38 | 2018/11/25 07:00 | Matyas Fuele v Nikitin, Viktor | 6-7,7-6,6-2 |