| WTT Feeder Olomouc Quals 2023 | 2023/08/23 09:15 | Sun, Zheng v Adam Klajber | W | 3-1 |
| WTT Feeder Olomouc Quals 2023 | 2023/08/22 12:05 | Laurens Devos v Sun, Zheng | W | 1-3 |
| WTT - Feeder Havirov | 2023/07/28 11:35 | Zeng, Beixun v Sun, Zheng | L | 3-1 |
| WTT - Feeder Havirov - Qualif. | 2023/07/27 15:35 | Sun, Zheng v Francisco Sanchi | W | 3-2 |
| République tchèque - Extraleague | 2018/11/17 10:50 | Harmeet Desai v Sun, Zheng | L | 4-2 |
| République tchèque - Extraleague | 2018/11/16 16:00 | Cnudde, Florian v Sun, Zheng | W | 0-4 |
| République tchèque - Extraleague | 2018/11/15 16:45 | Sun, Zheng v Nandor Ecseki | W | 4-2 |
| Qatar Open XD | 2018/11/13 15:30 | Sun, Zheng v Rukliatsou, Uladzislau | W | 3-0 |
| WTT Feeder Olomouc Quals 2023 | 2023/08/22 14:05 | Balazs Lei v Radim Moravek | W | 3-1 |
| Euro Youth Champs Teams | 2023/07/15 17:20 | Balazs Lei v Federico Vallino | W | 3-2 |
| WTT Contender Zagreb Quals | 2023/06/26 19:10 | Balazs Lei v Dongsoo Kang | L | 1-3 |
| WTT Contender Zagreb Quals | 2023/06/26 10:25 | Balazs Lei v Edward Ly | W | 3-2 |
| WTT Contender Budapest | 2021/08/15 08:00 | Jakub Zelinka v Balazs Lei | L | 3-0 |