| ATP Auckland | 2019/01/04 22:00 | Bradley Klahn v Philipp Oswald | 7-6,6-4 |
| Challenger Anning Qual | 2017/04/24 05:00 | Gianluigi Quinzi v Philipp Oswald | 6-3,7-5 |
| Challenger Anning Qual | 2017/04/23 06:30 | Philipp Oswald v Austin Krajicek | 6-3,6-4 |
| Challenger Anning Qual | 2017/04/22 05:40 | Philipp Oswald v Mukund Sasikumar | 6-3,6-4 |
| ATP Geneva Qual | 2015/05/16 12:40 | Philipp Oswald v Andrey Kuznetsov | 4-6,2-6 |
| WTA Kuala Lumpur Qual | 2014/09/22 05:00 | Takuto Niki v Philipp Oswald | 3-6,6-3,3-6 |
| WTA Kuala Lumpur Qual | 2014/09/20 03:00 | Santiago Gonzalez v Philipp Oswald | 4-6,3-6 |
| ATP Kitzbuhel Qual | 2014/07/26 09:05 | Aslan Karatsev v Philipp Oswald | 7-6,6-3 |
| ITF M15 Heraklion | 2020/03/06 08:30 | Alexander Erler v Alexander Lebedev | 3-6,3-6 |
| ITF M15 Heraklion | 2020/03/05 10:20 | Alexander Erler v Ioannis Xilas | 7-6,6-4 |
| ITF M15 Heraklion | 2020/03/04 08:30 | Alexander Erler v Sean Hodkin | 6-2,6-1 |
| ITF M25 Trento | 2020/03/01 09:25 | Ruben Bemelmans v Alexander Erler | 4-6,6-2,6-4 |
| ITF M25 Trento | 2020/02/29 12:00 | Julian Ocleppo v Alexander Erler | 4-6,2-6 |
| ITF M25 Trento | 2020/02/28 11:55 | Raul Brancaccio v Alexander Erler | 1-6,7-6,1-6 |
| ITF M25 Trento | 2020/02/27 13:55 | Alexander Erler v Daniel Masur | 7-6,7-6 |
| ITF M25 Trento | 2020/02/25 13:15 | Andrea Guerrieri v Alexander Erler | 3-6,6-3,4-6 |