Stadium: Grandstand 4 Round: 54 Ground: Hardcourt outdoor
| ITF - South Bend M15 | 2022/06/20 13:00 | Oliver Okonkwo v Zachary Mintz | 6-2,6-0 |
| ITF - Cancun M15 - MD | 2022/05/29 20:00 | Joao Giannella v Zachary Mintz | 6-2,6-0 |
| ITF - Weston M25 | 2022/01/23 15:15 | Adhithya Ganesan v Zachary Mintz | 6-0,6-2 |
| ITF - Champaign M15 | 2022/09/13 15:00 | Alexander Petrov v Jakub Ostajewski | 6-2,6-2 |
| ITF - Ueberlingen M15 | 2022/08/16 08:00 | Daniel Siniakov v Jakub Ostajewski | 3-6,6-3,10-7 |
| ITF - Waco M15 | 2022/07/06 13:30 | Jakub Ostajewski v Kaylan Bigun | 3-6,3-6 |
| ITF - Waco M15 | 2022/07/05 13:30 | Babji Siva Atturu v Jakub Ostajewski | 0-6,1-6 |
| ITF - Waco M15 | 2022/07/04 13:30 | Matthew Vos v Jakub Ostajewski | 3-6,1-6 |
| ITF - Dallas M25 | 2022/06/27 14:00 | Jett Middleton v Jakub Ostajewski | 6-1,3-6,10-0 |
| ITF - South Bend M15 | 2022/06/20 13:00 | Mac Kiger v Jakub Ostajewski | 6-1,6-1 |
| ITF - Cancun M25 | 2022/05/16 14:00 | Jakub Ostajewski v Gabriel Evans | 3-6,4-6 |