Head to Head includes singles and doubles results.
| 04/27/24 | Vanja Krstic over Frank Krieger | 6-4; 6-2 | |
| 10/28/23 | Vanja Krstic over Frank Krieger | 7-6; 6-3 | |
| 09/24/23 | Frank Krieger over Vanja Krstic |
6-3; 6-7; TB 10-5 |
