Head to Head includes singles and doubles results.
| 08/20/18 | Joseph Keller over Stephen Brinkman | 6-1; 6-1 | |
| 08/08/18 | Joseph Keller over Stephen Brinkman | 6-1; 6-2 | |
| 06/19/18 | Joseph Keller over Stephen Brinkman | 6-4; 4-3 Ret. | |
| 06/02/18 | Joseph Keller over Stephen Brinkman |
6-7; 6-4; TB 10-2 |
