Head to Head includes singles and doubles results.
| 06/27/22 | Jason Williams over Randall Vanderwerf | 6-1; 6-2 | |
| 09/07/18 | Jason Williams over Randall Vanderwerf | 6-3; 7-6 | |
| 09/15/17 | Jason Williams over Randall Vanderwerf | 6-1; 6-3 |
