| ITF M15 Heraklion | 2020/03/08 08:30 | Ioannis Xilas v Hans Peter Kaufmann | 6-1,6-2 |
| ITF M15 Heraklion | 2020/03/01 08:30 | Hans Peter Kaufmann v Buvaysar Gadamauri | 1-6,1-6 |
| ITF M15 Monastir | 2020/01/26 10:00 | Hans Peter Kaufmann v Gregorio Cordonnier | 1-6,3-6 |
| ITF M15 Monastir | 2020/01/19 13:00 | Hans Peter Kaufmann v Timo Stodder | 2-6,0-6 |
| ITF M15 Sharm El Sheikh | 2019/11/12 09:00 | Hanyi Liu v Hans Peter Kaufmann | 6-0,6-3 |
| ITF M15 Sharm El Sheikh | 2019/11/11 10:00 | Hans Peter Kaufmann v Roland Stuurman | 6-4,6-1 |
| ITF M15 Sharm El Sheikh | 2019/11/03 08:00 | Bastien Presuhn v Hans Peter Kaufmann | 6-1,6-1 |
| ITF M15 Sharm El Sheikh | 2019/10/16 09:30 | Hans Peter Kaufmann v Alessandro Bega | 4-6,0-6 |
| Austrian Tennis Championship | 2020/07/14 11:30 | Lenny Hampel v Michael Gloeckler | 6-3,6-2 |
| Austrian Tennis Championship | 2020/07/07 09:00 | Lenny Hampel v Marko Andrejic | 6-2,6-1 |
| Austrian Tennis Championship | 2020/07/06 12:20 | Lenny Hampel v Luka Mrsic | 6-3,6-0 |
| Austrian Tennis Championship | 2020/07/03 14:05 | Dennis Novak v Lenny Hampel | 6-3,6-7,7-6 |
| Austrian Tennis Championship | 2020/07/02 13:10 | Jurij Rodionov v Lenny Hampel | 4-6,0-6 |
| Austrian Tennis Championship | 2020/07/01 10:50 | Marko Andrejic v Lenny Hampel | 7-5,1-6,2-6 |
| Austrian Pro Series | 2020/06/19 08:00 | Lukas Neumayer v Lenny Hampel | 6-7,2-6 |
| Austrian Pro Series | 2020/06/18 13:20 | David Pichler v Lenny Hampel | 6-2,2-6,7-6 |