Stadium: Court 6 Round: 25 Ground: Hardcourt indoor
| ITF M15 Pajulahti | 2019/09/21 07:30 | Patrik Niklas-Salminen v Robert Strombachs | 4-6,6-7 |
| ITF M15 Pajulahti | 2019/09/20 10:30 | Alibek Kachmazov v Patrik Niklas-Salminen | 3-6,2-6 |
| ITF M15 Pajulahti | 2019/09/19 10:50 | Maxim Ratniuk v Patrik Niklas-Salminen | 7-5,0-6,3-6 |
| ITF M15 Pajulahti | 2019/09/18 11:05 | Jeremy Schifris v Patrik Niklas-Salminen | 1-6,4-6 |
| Davis Cup | 2019/09/13 15:00 | Patrik Niklas-Salminen v Dominic Thiem | 3-6,4-6 |
| ITF M15 Sao Bras Alportel | 2019/09/05 10:35 | Anton Matusevich v Patrik Niklas-Salminen | 6-4,6-2 |
| ITF M15 Sao Bras Alportel | 2019/09/03 14:30 | Guido Ivan Justo v Patrik Niklas-Salminen | 1-6,3-6 |
| ITF M15 - Helsinki | 2019/08/25 09:00 | Juan Manuel Cerundolo v Patrik Niklas-Salminen | 6-2,6-3 |
| ITF M15 Pajulahti | 2019/09/20 07:00 | Savriyan Danilov v Lucas Catarina | 4-6,6-4,6-4 |
| ITF M15 Pajulahti | 2019/09/19 09:05 | Francesco Vilardo v Lucas Catarina | 3-6,3-6 |
| ITF M15 Pajulahti | 2019/09/18 12:50 | Simon Yitbarek v Lucas Catarina | 1-6,2-6 |
| Davis Cup | 2019/09/14 08:00 | Lucas Catarina v Dimitar Grabul | 7-6,6-2 |
| Davis Cup | 2019/09/13 11:15 | Lucas Catarina v Stefanos Tsitsipas | 2-6,1-6 |
| Davis Cup | 2019/09/12 09:20 | Ugo Nastasi v Lucas Catarina | 4-6,4-6 |
| Davis Cup | 2019/09/11 09:35 | Hubert Hurkacz v Lucas Catarina | 6-4,6-2 |
| Challenger Baotou | 2019/08/26 05:25 | Lucas Catarina v Maxime Hamou | 6-3,2-6,3-6 |