Stadium: Court 4 Round: 54 Ground: Clay
| ITF M25 Wetzlar | 2021/08/02 14:35 | Benito Sanchez Martinez v William Ma | 6-3,1-6,11-9 |
| ITF M25 Kottingbrunn | 2021/07/18 07:30 | Benedikt Emesz v William Ma | 6-1,6-0 |
| UTR Pro Tennis Series Canberra | 2021/04/24 00:00 | Omar Jasika v William Ma | 6-3,5-2 |
| UTR Pro Tennis Series Canberra | 2021/04/21 01:30 | William Ma v Li Tu | 2-6,3-6 |
| UTR Pro Tennis Series Canberra | 2021/04/20 01:30 | William Ma v Arjun Mehrotra | 6-3,4-6,7-6 |
| UTR Pro Tennis Series Canberra | 2021/04/19 01:00 | James McCabe v William Ma | 6-3,6-3 |
| UTR Pro Tennis Series Bendigo | 2021/01/31 03:00 | William Ma v Chanchai Sookton-Eng | 1-6,2-5 |
| UTR Pro Tennis Series Bendigo | 2021/01/30 03:00 | Aaron Addison v William Ma | 6-2,5-1 |
| ITF M15 Parnu | 2021/08/06 11:00 | Yan Sabanin v Simone Roncalli | 1-6,4-6 |
| ITF M15 Parnu | 2021/08/05 09:55 | Yan Sabanin v Andrea Guerrieri | 6-2,6-3 |
| ITF M15 Parnu | 2021/08/04 08:30 | Patrik Niklas-Salminen v Yan Sabanin | 3-6,6-7 |
| ITF M15 Esch/Alzette | 2021/07/20 11:00 | Yan Sabanin v Louis Wessels | 6-7,0-6 |
| ITF M25 Telfs | 2021/07/13 11:00 | Yan Sabanin v Martins Podzus | 6-7,7-5,3-6 |
| ITF M25 Marburg | 2021/07/07 09:00 | Yan Sabanin v Ryan Nijboer | 0-6,3-6 |
| ITF M25 Marburg | 2021/07/06 14:35 | Yan Sabanin v Patrick Zahraj | 6-4,6-4 |
| ITF M25 Marburg | 2021/07/05 12:05 | Yan Sabanin v Guy Den Ouden | 7-6,6-4 |