Head to Head includes singles and doubles results.
| 08/09/21 | Mark Merrique over Cem Kocyildirim | 10-6 | |
| 07/14/21 | Mark Merrique over Cem Kocyildirim | 10-7 | |
| 06/15/21 | Cem Kocyildirim over Mark Merrique | 6-4; 7-5 | |
| 05/11/21 | Cem Kocyildirim over Mark Merrique | 6-2; 6-2 | |
| 03/16/21 | Cem Kocyildirim over Mark Merrique | 10-8 |
