Stadium: Court 9 Round: 54 Ground: Clay
| ITF M15 Reggio Emilia | 2019/05/27 12:30 | Giacomo Dambrosi v Patrik Hartmeier | 7-6,7-6 |
| ITF M15 Prague | 2019/05/13 08:30 | Antonin Stepanek v Patrik Hartmeier | 7-5,6-1 |
| ITF M25 Santa Margherita | 2019/04/15 12:00 | Victor Vlad Cornea v Patrik Hartmeier | 6-1,6-2 |
| ITF M25 Sunderland | 2019/04/08 16:00 | Patrik Hartmeier v Anton Matusevich | 4-6,1-6 |
| ITF M25 Sunderland | 2019/04/08 08:40 | Patrik Hartmeier v James Mackinlay | 7-5,3-6,10-8 |
| ITF M15 Oslo | 2019/03/05 09:00 | Jordan Hasson v Patrik Hartmeier | 7-6,3-6,10-8 |
| ITF M15 Oslo | 2019/03/04 09:00 | Daniil Glinka v Patrik Hartmeier | 6-4,3-6,2-10 |
| ITF M25 Oberentfelden | 2019/02/04 08:30 | Mattia Bellucci v Patrik Hartmeier | 6-1,2-6,10-5 |
| ITF M15 Alkmaar | 2019/06/24 13:00 | Amadatus Admiraal v Paolo Dagnino | 6-4,6-2 |
| Lotto NK Tennis | 2018/12/13 11:00 | Botic Van De Zandschulp v Amadatus Admiraal | 6-2,6-2 |
| ITF Czech Republic F8 | 2018/10/30 12:05 | Karol Drzewiecki v Amadatus Admiraal | 6-2,7-6 |
| ITF Czech Republic F8 | 2018/10/29 13:00 | Amadatus Admiraal v Martin Fekiac | 6-7,6-1,6-0 |
| ITF Germany F16 | 2018/10/21 08:00 | Sizya Ernest Kivanda v Amadatus Admiraal | 6-3,6-3 |
| ITF France F19 Qual | 2018/09/23 09:00 | Amadatus Admiraal v Ronan Joncour | 2-6,4-6 |
| ITF Netherlands F6 | 2018/08/29 14:00 | Amadatus Admiraal v Alec Deckers | 4-6,3-6 |
| ITF Netherlands F5 | 2018/08/21 08:00 | Esteban Bruna v Amadatus Admiraal | 2-6,6-4,5-7 |