Head to Head includes singles and doubles results.
| 09/02/21 | Frank Krieger over Derek Dressler | 5-7; 6-4; 6-3 | |
| 08/26/21 | Frank Krieger over Derek Dressler | 7-6; 6-3 | |
| 05/20/21 | Frank Krieger over Derek Dressler | 6-1; 7-6 | |
| 02/15/21 | Frank Krieger over Derek Dressler | 6-1; 3-6; 6-4 |
