| Mouilleron-Le-Captif, France | 10/02 11:55 | 14 | [387] Valentin Royer v Niklas-Salminen, Patrick [194] | 5-7,6-4,7-6 | |
| Challenger Toulouse | 08/28 15:25 | 14 | [152] Drzewiecki, Karol v Niklas-Salminen, Patrick [199] | 6-2,6-3 | |
| Challenger Toulouse | 08/28 15:00 | 14 | Alvarez, Nicolas v Niklas-Salminen, Patrick | Cancelled | |
| Challenger Tampere | 07/19 16:05 | 25 | [270] Niklas-Salminen, Patrick v Lorenzo Giustino [261] | 2-6,3-6 | |
| ITF M15 Bytom | 06/08 12:15 | 25 | Paul Woerner v Niklas-Salminen, Patrick | 6-4,6-3 | |
| Poznan, Poland | 05/29 10:35 | 14 | [308] Oleksii Krutykh v Niklas-Salminen, Patrick [369] | 2-6,7-5,6-3 | |
| ITF M15 Kouvola | 05/20 07:55 | 27 | Niklas-Salminen, Patrick v Lofman, Aleksi | 5-7,4-6 | |
| ITF M15 Kouvola | 05/19 07:00 | 26 | Niklas-Salminen, Patrick v Peetu Pohjola | 7-6,6-1 | |
| ITF M15 Kouvola | 05/18 09:40 | 25 | Niklas-Salminen, Patrick v Eerola, Oskari | 6-0,6-4 | |
| ITF - M25 Nottingham | 05/10 09:00 | 25 | [304] Alastair Gray v Niklas-Salminen, Patrick [377] | 6-1,6-1 | |
| ITF - M25 Nottingham | 05/02 11:30 | 54 | Niklas-Salminen, Patrick v Billy Blaydes | 3-6,4-6 | |
| ITF - M25 Nottingham | 05/01 13:00 | 54 | Niklas-Salminen, Patrick v Matthew Rankin | 6-3,7-5 | |
| ITF - M25 Nottingham | 04/21 10:45 | 26 | [371] Niklas-Salminen, Patrick v Patten, Henry [466] | 2-6,1-6 | |
| ITF - M25 Nottingham | 04/20 12:30 | 25 | Edan Leshem v Niklas-Salminen, Patrick | 1-6,6-4,3-6 | |
| ITF - M15 Sharm El Sheikh | 04/07 09:00 | 26 | Sinclair, Colin v Niklas-Salminen, Patrick | 7-5,7-6 | |
| ITF - M15 Sharm El Sheikh | 04/06 12:00 | 25 | Niklas-Salminen, Patrick v Luca Fantini | 6-4,6-4 | |
| ITF - M15 Sharm El Sheikh | 03/30 08:00 | 25 | Niklas-Salminen, Patrick v Marat Sharipov | 1-6,1-6 | |
| Challenger - Lille | 03/20 15:30 | 14 | Niklas-Salminen, Patrick v Alexis Galarneau | 2-6,1-6 | |
| ITF - M15 Monastir | 02/23 07:55 | 25 | Niklas-Salminen, Patrick v Joe Misrahi | 7-5,6-7,4-6 | |
| ITF - M15 Grenoble | 02/08 09:55 | 25 | Niklas-Salminen, Patrick v Voljacques, Hugo | 3-6,4-6 | |
| ITF M25 Vilnius | 01/19 10:00 | 26 | David Poljak v Niklas-Salminen, Patrick | 7-6,6-7,7-6 | |
| ITF M25 Vilnius | 01/18 11:50 | 25 | Pijus Vaitiekunas v Niklas-Salminen, Patrick | 4-6,0-6 | |
| ITF M25 Bath | 01/11 14:30 | 25 | Niklas-Salminen, Patrick v Jan Choinski | 2-6,3-6 | |
| Forli 6, Italy | 01/02 13:00 | 14 | Niklas-Salminen, Patrick v Sasikumar Mukund | 3-6,4-6 | |
| ITF - M15 Doha | 12/22 12:00 | 25 | AL Allaf, Kareem v Niklas-Salminen, Patrick | 5-7,6-3,6-4 | |
| ITF - M15 Doha | 12/16 12:00 | 26 | Dominik Palan v Niklas-Salminen, Patrick | 7-5,2-6,6-4 | |
| ITF - M15 Doha | 12/15 12:00 | 25 | Mubarak Shannan Zayid v Niklas-Salminen, Patrick | 1-6,2-6 | |
| Challenger Manama | 11/21 09:55 | 14 | Vladyslav Orlov v Niklas-Salminen, Patrick | 6-1,7-6 | |
| Helsinki, Finland | 11/16 16:30 | 25 | Joao Sousa v Niklas-Salminen, Patrick | 6-3,7-6 | |
| Challenger Bratislava | 11/07 13:05 | 14 | Zsombor Piros v Niklas-Salminen, Patrick | 7-6,6-7,7-6 |