Head to Head includes singles and doubles results.
09/01/21 | Michael Sturm over Alexander Kostal | 7-6; 7-6 | Playoff Match |
08/11/21 | Alexander Kostal over Michael Sturm | 6-4; 1-6; 6-2 | |
10/02/20 | Alexander Kostal over Michael Sturm | 7-6; 2-6; 6-4 | |
06/28/20 | Michael Sturm over Alexander Kostal | 6-3; 7-6 |