| ITF M25 Poznan | 08/22 13:00 | 44 | Daniel Paty v Sebastian Brzezinski | 6-0,6-2 | |
| ITF M25 Poznan | 08/22 09:30 | 44 | Zdenek Derkas v Sebastian Brzezinski | 4-6,6-3,9-11 | |
| UTR Pro Tennis Series Slovenia | 06/10 10:30 | - | Janos Fekete v Sebastian Brzezinski | 6-4,2-6,0-5 | |
| UTR Pro Tennis Series Slovenia | 06/10 08:36 | - | Volodymyr Uzhylovskyi v Sebastian Brzezinski | 4-6,1-5 | |
| UTR Pro Tennis Series Slovenia | 06/07 10:30 | - | Enzo Aguiard v Sebastian Brzezinski | 6-0,6-4 | |
| UTR Pro Tennis Series Slovenia | 06/06 06:00 | - | Sebastian Brzezinski v Ilie Babinciuc | 6-4,2-6,5-3 | |
| ITF M25 Poznan | 08/24 12:20 | 44 | Leonardo Aboian v Sebastian Brzezinski | 6-3,6-7,10-6 | |
| ITF M25 Poznan | 08/24 08:00 | 44 | Martyn Pawelski v Sebastian Brzezinski | 3-6,4-6 | |
| ITF M25 Poznan | 08/22 08:00 | 44 | Sebastian Brzezinski v Tom Hands | 6-3,6-3 | |
| ITF M15 Piombino | 08/27 10:00 | 45 | Andres Gabriel Ciurletti v Sebastian Brzezinski | 6-3,6-4 | |
| ITF M15 Piombino | 08/26 12:30 | 45 | Tommaso Rombai v Sebastian Brzezinski | 3-6,2-6 | |
| ITF M15 Santa Cristina | 08/12 15:25 | 54 | Andrea Picchione v Sebastian Brzezinski | 6-7,7-5,10-5 | |
| ITF M25 Appiano | 08/07 07:30 | 25 | Sebastian Brzezinski v Francesco Forti | 4-6,3-6 | |
| ITF M25 Bolzano | 07/30 08:50 | 45 | Sebastian Brzezinski v Davide Tortora | 4-6,2-6 | |
| ITF M25 Bolzano | 07/29 13:00 | 45 | Marco De Rossi v Sebastian Brzezinski | 4-6,4-6 | |
| ITF M15 Telfs | 07/08 12:00 | 54 | Damien Wenger v Sebastian Brzezinski | 6-0,6-1 | |
| ITF M15 Telfs | 07/08 07:30 | 54 | Sebastian Brzezinski v Philip Bachmaier | 2-6,6-4,10-8 | |
| ITF M15 Wroclaw | 07/01 08:00 | 54 | Oleksii Krutykh v Sebastian Brzezinski | 6-0,6-4 | |
| ITF M15 Cairo | 04/24 07:30 | 25 | Peter Goldsteiner v Sebastian Brzezinski | 6-4,6-1 | |
| ITF M15 Cairo | 04/23 08:00 | 54 | Valentin Vanta v Sebastian Brzezinski | 7-6,6-0 | |
| ITF M15 Cairo | 04/22 08:00 | 54 | Tarun Anirudh Chilakalapudi v Sebastian Brzezinski | 3-6,3-6 | |
| ITF M15 Cairo | 04/17 09:30 | 25 | Vit Kopriva v Sebastian Brzezinski | 6-0,6-2 | |
| ITF M15 Cairo | 04/16 09:00 | 54 | Marco De Rossi v Sebastian Brzezinski | 6-2,6-1 | |
| ITF Tunisia F31 | 09/10 09:00 | 62 | Sebastian Brzezinski v Luke Jacob Gamble | 0-6,2-6 | |
| ITF Tunisia F31 | 09/09 09:00 | 62 | Horst Rieder v Sebastian Brzezinski | 5-7,1-6 | |
| ITF Tunisia F31 | 09/08 08:30 | 62 | Sebastian Brzezinski v Edward Harwood | 7-6,7-6 | |
| ITF Tunisia F30 | 09/01 09:30 | 44 | Sebastian Brzezinski v Mathieu Garcia | 3-6,1-6 | |
| ITF Italia F25 | 08/28 13:30 | 25 | Sebastian Brzezinski v Mattia Rossi | 2-6,3-6 | |
| ITF Italia F25 | 08/26 09:40 | 54 | Andrea Borroni v Sebastian Brzezinski | 4-6,3-6 | |
| ITF Italia F25 | 08/25 11:45 | 54 | Mauro De Maio v Sebastian Brzezinski | 4-6,3-6 |