Stadium: Court 13 Round: 25 Ground: Carpet indoor
| ITF M15 Pajulahti | 2019/09/21 07:30 | Patrik Niklas-Salminen v Robert Strombachs | 4-6,6-7 |
| ITF M15 Sarreguemines | 2020/10/26 13:15 | Robert Strombachs v Kenneth Raisma | 4-6,1-6 |
| ITF M15 Sarreguemines | 2020/10/25 12:35 | Robert Strombachs v Brett Vadoz | 6-0,6-2 |
| ITF M25 Hamburg | 2020/10/18 12:30 | Benedikt Henning v Robert Strombachs | 7-6,6-2 |
| ITF M15 Setubal | 2020/10/05 10:30 | Luis Faria v Robert Strombachs | 6-3,6-4 |
| ITF M15 Forbach | 2020/10/01 11:20 | Robert Strombachs v Michael Geerts | 6-4,6-7,1-6 |
| ITF M15 Sintra | 2020/09/10 10:15 | Gastao Elias v Robert Strombachs | 6-1,6-2 |
| ITF M15 Sintra | 2020/09/09 10:10 | Robert Strombachs v Stefan Kozlov | 6-4,6-2 |
| ITF M15 Sintra | 2020/09/07 15:20 | Nicolas Moreno De Alboran v Robert Strombachs | 3-6,6-1,12-14 |
| ITF M15 Setubal | 2020/10/09 11:30 | Patrik Niklas-Salminen v Francesco Forti | 6-7,4-6 |
| ITF M15 Setubal | 2020/10/08 09:00 | Wilson Leite v Patrik Niklas-Salminen | 4-6,6-2,4-6 |
| ITF M15 Setubal | 2020/10/06 10:45 | Oscar Jose Gutierrez v Patrik Niklas-Salminen | 2-6,4-6 |
| ITF M25 Porto | 2020/10/01 13:00 | Shuichi Sekiguchi v Patrik Niklas-Salminen | 3-6,6-2,6-3 |
| ITF M25 Porto | 2020/09/30 13:30 | Patrik Niklas-Salminen v Ryan Peniston | 6-4,6-2 |
| ITF M15 Castelo Branco | 2020/09/23 15:05 | Patrik Niklas-Salminen v Natan Rodrigues | 6-7,1-6 |
| Davis Cup | 2020/03/06 18:10 | Manuel Sanchez v Patrik Niklas-Salminen | 4-6,4-6 |
| Challenger Calgary | 2020/02/27 01:40 | Patrik Niklas-Salminen v Maxime Cressy | 3-6,2-6 |