Head to Head includes singles and doubles results.
| 05/24/11 | Costi Sofocleous over Buddy Koehler | 10-6 | |
| 05/12/11 | Costi Sofocleous over Buddy Koehler | 10-2 | |
| 05/31/10 | Costi Sofocleous over Buddy Koehler | 7-1 | |
| 05/28/10 | Costi Sofocleous over Buddy Koehler | 6-4; 7-5 |
