Head to Head includes singles and doubles results.
| 05/25/18 | Elmar Pappenreiter over Phil Harris | 6-4; 6-2 | |
| 08/30/17 | Elmar Pappenreiter over Phil Harris | 6-4; 6-7; 6-3 | |
| 08/24/17 | Phil Harris over Elmar Pappenreiter | 10-6 | |
| 07/27/17 | Elmar Pappenreiter over Phil Harris | 3-6; 6-4; 6-0 |
