Round: 54 Ground: Clay
| Challenger Tampere Qual | 2017/07/22 12:15 | Patrik Niklas-Salminen v Juan Ignacio Londero | 2-6,4-6 |
| Challenger Tampere Qual | 2017/07/22 08:30 | Aaro Pollanen v Patrik Niklas-Salminen | 6-7,6-7 |
| Challenger Lisbon Qual | 2017/06/10 16:10 | Goncalo Falcao v Patrik Niklas-Salminen | 6-3,6-4 |
| Challenger Mestre Qual | 2017/05/20 13:25 | Hubert Hurkacz v Patrik Niklas-Salminen | 6-1,6-3 |
| ITF Italy F13 | 2017/05/16 11:00 | Patrik Niklas-Salminen v Walter Trusendi | 1-6,0-6 |
| ITF Italy F13 | 2017/05/14 07:00 | Patrik Niklas-Salminen v Kirill Kivattsev | 7-6,7-5 |
| ITF Italy F13 | 2017/05/14 07:00 | Patrik Niklas-Salminen v Ludovico Scerrati | 6-1,6-1 |
| Davis Cup | 2017/04/09 10:00 | Patrik Niklas-Salminen v Antso Rako'anga | 3-6,5-7,6-7 |
| ITF Netherlands F4 | 2017/07/08 08:00 | Stephan Fransen v Johan Jonhagen | 6-1,6-0 |
| ITF Netherlands F4 | 2017/07/08 08:00 | Johan Jonhagen v Fabian Van Der Lans | 7-6,7-6 |
| ITF Czech Republic F4 Qual | 2017/07/03 10:00 | Ondrej Krstev v Johan Jonhagen | 6-4,6-3 |
| ITF Czech Republic F4 Qual | 2017/07/02 08:00 | Johan Jonhagen v Patrik Maly | 6-4,6-3 |
| ITF USA F34 | 2016/10/26 19:00 | Johan Jonhagen v Sam Barry | 6-4,3-6,4-6 |
| ITF USA F34 | 2016/10/23 17:00 | Nikita Matveyko v Johan Jonhagen | 2-6,4-6 |
| ITF USA F34 | 2016/10/22 18:00 | Johan Jonhagen v Farzin Danny Amiri | 1-6,7-6,6-1 |
| ITF USA F33 Qual | 2016/10/17 21:00 | Johan Jonhagen v Timothy Sah | 5-7,2-6 |