Head to Head includes singles and doubles results.
| 06/15/21 | Tom Sonick over Hal Theobald | 6-1; 6-3 | Doubles Match |
| 10/11/20 | Tom Sonick over Hal Theobald | 6-2; 6-1 | Playoff Match |
| 08/12/20 | Tom Sonick over Hal Theobald | 6-4; 6-4 | Doubles Match |
| 07/29/20 | Tom Sonick over Hal Theobald | 6-0; 7-6 | Doubles Match |
| 08/19/19 | Tom Sonick over Hal Theobald | 6-0; 6-1 | Playoff Match |
| 07/10/19 | Tom Sonick over Hal Theobald | 6-4; 6-2 | Doubles Match |
| 06/18/19 | Tom Sonick over Hal Theobald | 6-2; 6-1 | Doubles Match |
