Stadium: VOLKSBANK Court Round: 54 Ground: Clay
| ITF M25 Frankfurt am Main | 2021/08/09 10:35 | 마, 윌리암 v 사바닌, 얀 | 3-6,3-6 |
| ITF M25 Wetzlar | 2021/08/02 14:35 | Sanchez Martinez, Benito v 마, 윌리암 | 6-3,1-6,11-9 |
| ITF M25 Kottingbrunn | 2021/07/18 07:30 | 에메즈, 베네디크트 v 마, 윌리암 | 6-1,6-0 |
| UTR Pro Tennis Series Canberra | 2021/04/24 00:00 | Jasika, Omar v 마, 윌리암 | 6-3,5-2 |
| UTR Pro Tennis Series Canberra | 2021/04/21 01:30 | 마, 윌리암 v Tu, Li | 2-6,3-6 |
| UTR Pro Tennis Series Canberra | 2021/04/20 01:30 | 마, 윌리암 v 메흐로트라, 아르준 | 6-3,4-6,7-6 |
| UTR Pro Tennis Series Canberra | 2021/04/19 01:00 | Mccabe, James v 마, 윌리암 | 6-3,6-3 |
| UTR Pro Tennis Series Bendigo | 2021/01/31 03:00 | 마, 윌리암 v 숙톤-엥, 찬차이 | 1-6,2-5 |
| ITF M15 Heraklion | 2021/06/06 07:30 | Yang, Jimmy v Vasiliauskas, Matas | 1-6,7-5,4-10 |
| ITF M15 Heraklion | 2021/05/30 06:30 | 벨루시, 마티아 v Yang, Jimmy | 6-2,7-6 |
| ITF M15 Heraklion | 2021/05/23 08:30 | Yang, Jimmy v 그리피스, 윌리암 | 2-6,0-6 |
| ITF M15 Heraklion | 2021/05/17 07:00 | 스탈더, 리스 v Yang, Jimmy | 6-2,6-3 |
| ITF M25 Meerbusch | 2021/04/12 07:30 | Yang, Jimmy v 왈더, 짐 | 2-6,3-6 |