Head to Head includes singles and doubles results.
| 07/03/12 | Mark Stern over Theo Hatzipetros | 1-6; 6-3; 5-2 | |
| 08/26/11 | Theo Hatzipetros over Mark Stern | 6-2; 6-4 | |
| 08/17/10 | Mark Stern over Theo Hatzipetros | 10-5 | |
| 08/16/10 | Mark Stern over Theo Hatzipetros | 4-6; 6-4; 6-2 | |
| 04/15/10 | Mark Stern over Theo Hatzipetros | 6-1; 6-2 | |
| 09/07/09 | Theo Hatzipetros over Mark Stern | 6-4; 6-3 | |
| 08/23/09 | Theo Hatzipetros over Mark Stern | 6-4; 7-5 | |
| 05/07/09 | Theo Hatzipetros over Mark Stern | 6-0; 6-4 | |
| 09/30/08 | Theo Hatzipetros over Mark Stern | 6-3; 7-6 | |
| 08/27/08 | Theo Hatzipetros over Mark Stern | 6-0; 0-6; 6-3 |
