Head to Head includes singles and doubles results.
| 01/14/21 | Karthik Rajaraman over Michael Katchmark | 6-2; 7-5 | |
| 10/20/20 | Karthik Rajaraman over Michael Katchmark |
6-3; 4-6; TB 10-8 |
|
| 09/12/20 | Michael Katchmark over Karthik Rajaraman |
6-4; 6-7; TB 10-6 |
|
| 09/24/19 | Karthik Rajaraman over Michael Katchmark | 6-2; 6-3 | |
| 02/04/19 | Karthik Rajaraman over Michael Katchmark | 6-3; 6-4 | |
| 08/29/18 | Karthik Rajaraman over Michael Katchmark | 7-5; 6-2 | |
| 07/26/18 | Karthik Rajaraman over Michael Katchmark | 6-2; 6-0 |
