Stadium: Ameron
| German Premier League | 2020/08/26 10:50 | Cervantes, Inigo v Karlo Cubelic | 3-6,1-6 |
| German Premier League | 2020/08/25 15:50 | Altug Celikbilek v Karlo Cubelic | 6-3,7-6 |
| German Premier League | 2020/08/24 09:30 | Torebko, Peter v Karlo Cubelic | 6-7,6-7 |
| German Premier League | 2020/08/21 17:00 | Stefan Palosi v Karlo Cubelic | 3-6,4-6 |
| German Premier League | 2020/08/20 08:45 | Henri Squire v Karlo Cubelic | 6-2,6-2 |
| German Premier League | 2020/08/19 09:40 | Mats Rosenkranz v Karlo Cubelic | 6-2,6-3 |
| German Premier League | 2020/08/18 06:30 | Karlo Cubelic v Vladyslav Orlov | 4-6,3-6 |
| German Premier League | 2020/08/17 13:25 | Elmar Ejupovic v Karlo Cubelic | 6-4,2-6,6-1 |
| German Premier League | 2020/08/26 14:40 | Torebko, Peter v Mannapov, Alexander | 6-3,7-5 |
| German Masters | 2020/08/21 18:45 | Benjamin Lock v Mannapov, Alexander | 6-4,6-4 |
| German Masters | 2020/08/20 06:30 | Sanchez Martinez, Benito v Mannapov, Alexander | 6-4,4-6,6-0 |
| German Premier League | 2020/08/15 16:40 | Vlad Andrei Dancu v Mannapov, Alexander | 7-6,4-6,6-7 |
| German Premier League | 2020/08/14 07:00 | Lucas Gerch v Mannapov, Alexander | 6-1,3-6,6-1 |
| German Premier League | 2020/08/13 07:00 | Tom Schonenberg v Mannapov, Alexander | 7-6,6-4 |
| German Premier League | 2020/08/12 15:00 | Netuschil, Marvin v Mannapov, Alexander | 6-4,6-4 |
| German Premier League | 2020/08/11 12:10 | Mats Rosenkranz v Mannapov, Alexander | 6-1,6-4 |