Head to Head includes singles and doubles results.
| 06/24/20 | Jason Williams over Haizhong Wu | 2-6; 6-4; 6-1 | |
| 07/21/19 | Jason Williams over Haizhong Wu | 6-4; 6-2 | |
| 05/03/19 | Jason Williams over Haizhong Wu | 7-5; 6-4 | |
| 05/05/18 | Haizhong Wu over Jason Williams | 6-4; 6-3 | |
| 10/20/17 | Jason Williams over Haizhong Wu | 6-0; 3-6; 6-3 | Playoff Match |
| 08/02/17 | Haizhong Wu over Jason Williams | 7-6; 7-5 | |
| 05/22/17 | Jason Williams over Haizhong Wu | 6-2; 4-6; 6-2 | |
| 10/23/16 | Jason Williams over Haizhong Wu | 6-3; 6-3 | Playoff Match |
| 09/29/16 | Haizhong Wu over Jason Williams | 7-6; 6-2 |
