Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| ITF M15 - Trier | 2019/08/14 10:00 | Fabrizio Ornago v Adrian Oetzbach | 6-0,6-2 |
| ITF M15 - Trier | 2019/08/13 12:20 | Adrian Oetzbach v Nicolas Uryson | 6-3,6-2 |
| ITF M15 - Trier | 2019/08/13 07:30 | Adrian Oetzbach v Lynn Max Kempen | 7-5,6-2 |
| ITF M15 - Wetzlar | 2019/08/06 09:05 | Paul Cayre v Adrian Oetzbach | 6-4,6-4 |
| ITF M15 - Wetzlar | 2019/08/05 12:00 | Adrian Oetzbach v Arjun Mahadevan | 6-4,6-2 |
| ITF M15 - Wetzlar | 2019/08/05 08:00 | Adrian Oetzbach v Pietro Schiavetti | 6-2,6-4 |
| ITF M15 - Bad Schussenried | 2019/07/22 14:30 | Luca Gelhardt v Adrian Oetzbach | 6-4,6-3 |
| ITF M15 - Parnu | 2019/07/18 08:10 | Alexander Shevchenko v Adrian Oetzbach | 6-4,6-3 |
| Challenger Cary | 2019/09/09 17:40 | Alex Rybakov v Michael Redlicki | 4-6,2-6 |
| US Open | 2019/08/19 15:00 | Alex Rybakov v Facundo Bagnis | 6-4,1-6,2-6 |
| Challenger Lexington | 2019/07/29 15:40 | Evan Hoyt v Alex Rybakov | 6-2,6-7,6-2 |
| Challenger Binghamton | 2019/07/25 19:20 | Joao Menezes v Alex Rybakov | 7-6,6-3 |
| Challenger Binghamton | 2019/07/24 19:00 | Alex Rybakov v Sergiy Stakhovsky | 7-6,4-6,7-6 |
| Challenger Binghamton | 2019/07/23 19:20 | Alex Rybakov v Bernardo Saraiva | 6-7,6-1,6-3 |
| ITF M25 - Iowa City | 2019/07/21 15:00 | Alex Rybakov v John McNally | 7-6,5-7,7-6 |
| ITF M25 - Iowa City | 2019/07/20 15:15 | Mohamed Aziz Dougaz v Alex Rybakov | 6-7,3-6 |