| WTT - Feeder Otocec - Kwal. | 03/26 15:00 | 6 | Balazs Lei v Andrii Grebeniuk | L | 1-3 | |
| Oman Open U21 - Dames | 01/26 12:30 | - | Borna Petek v Balazs Lei | W | 0-3 | |
| Oman Open U21 - Dames | 01/25 13:00 | - | Hugo Deschamps v Balazs Lei | L | 4-2 | |
| WTT - Feeder Stockholm - Kwal. | 10/03 15:50 | - | Georgios Stamatouros v Balazs Lei | W | 0-3 | |
| WTT - Feeder Stockholm - Kwal. | 10/03 09:20 | - | Federico Otalvaro v Balazs Lei | W | 2-3 | |
| WTT - Feeder Olomouc - Kwal. 2023 | 08/23 13:40 | - | Zheng Sun v Balazs Lei | L | 3-1 | |
| WTT - Feeder Olomouc - Kwal. 2023 | 08/22 14:05 | - | Balazs Lei v Radim Moravek | W | 3-1 | |
| EK teams - Junioren | 07/15 17:20 | - | Balazs Lei v Federico Vallino | W | 3-2 | |
| WTT - Contender Zagreb - Kwal. | 06/26 19:10 | - | Balazs Lei v Dongsoo Kang | L | 1-3 | |
| WTT - Contender Zagreb - Kwal. | 06/26 10:25 | - | Balazs Lei v Edward Ly | W | 3-2 | |
| WTT Contender Budapest | 08/15 08:00 | - | Jakub Zelinka v Balazs Lei | L | 3-0 |