| UTR Pro Tennis Series Dubai | 2022/01/12 09:00 | Dan Alexandru Tomescu v Mateusz Terczynski | 6-3,6-3 |
| UTR Pro Tennis Series Dubai | 2022/01/11 09:00 | Kai Lemstra v Mateusz Terczynski | 6-1,5-1 |
| ITF M25 Hamburg | 2021/10/17 17:15 | Daniel Little v Mateusz Terczynski | 6-4,6-0 |
| ITF M25 Hamburg | 2021/10/17 12:25 | Tom Clavel v Mateusz Terczynski | 4-6,1-6 |
| ITF M25 Prague | 2021/10/03 10:00 | Samuel Paulovcak v Mateusz Terczynski | 4-6,6-3,10-8 |
| Polish National Tour | 2021/07/13 11:50 | Mateusz Terczynski v Daniel Michalski | 2-6,1-6 |
| ITF M15 Poprad | 2021/07/05 08:00 | Illya Beloborodko v Mateusz Terczynski | 6-4,6-2 |
| ITF M15 Poprad | 2021/07/04 11:00 | Jakub Kroslak v Mateusz Terczynski | 6-2,6-7,9-11 |
| UTR Pro Tennis Series Dubai | 2022/01/11 09:00 | Dan Alexandru Tomescu v Igor Sijsling | 6-7,3-6 |
| UTR Pro Tennis Series Dubai | 2022/01/10 04:30 | Igor Sijsling v Martins Podzus | 4-6,6-1,4-6 |
| UTR Pro Tennis Series Dubai | 2022/01/08 07:30 | Igor Sijsling v Ilya Snitari | 1-6,1-6 |
| UTR Pro Tennis Series Dubai | 2022/01/07 07:30 | Oscar Jose Gutierrez v Igor Sijsling | 4-6,6-1,6-1 |
| UTR Pro Tennis Series Dubai | 2022/01/06 09:00 | Martins Podzus v Igor Sijsling | 2-6,6-7 |
| UTR Pro Tennis Series Dubai | 2022/01/03 06:00 | Igor Sijsling v Simon Roberts | 6-3,6-1 |
| Challenger Lisbon | 2021/09/27 15:10 | Igor Sijsling v Andrea Pellegrino | 0-6,4-6 |
| Challenger Braga | 2021/09/21 09:00 | Igor Sijsling v Michael Vrbensky | 1-6,4-6 |