Head to Head includes singles and doubles results.
| 10/28/19 | David Koller over Giao Nguyen |
4-6; 6-3; TB 10-3 |
|
| 09/09/16 | David Koller over Giao Nguyen | 6-2; 6-3 | |
| 11/08/14 | Giao Nguyen over David Koller | 6-2; 0-6; 6-3 | |
| 09/21/14 | Giao Nguyen over David Koller | 3-6; 6-4; 6-4 |
