Head to Head includes singles and doubles results.
| 10/20/22 | Mark Shlain over Tatsu Tanaka | 6-3; 6-4 | |
| 01/30/19 | Mark Shlain over Tatsu Tanaka | 6-4; 6-3 | |
| 01/21/19 | Mark Shlain over Tatsu Tanaka | 4-6; 7-5; 6-4 | |
| 08/20/18 | Tatsu Tanaka over Mark Shlain | 6-4; 2-6; 6-1 | |
| 06/29/18 | Tatsu Tanaka over Mark Shlain | 6-3; 6-3 | Playoff Match |
| 03/28/16 | Mark Shlain over Tatsu Tanaka | 6-4; 6-4 | |
| 03/16/16 | Tatsu Tanaka over Mark Shlain | 6-4; 6-4 | Playoff Match |
