Stadium: Center Court Round: 26 Ground: Hardcourt indoor
| Challenger Istanbul | 2020/10/22 11:10 | Ilya Ivashka v Cem Ilkel | 6-2,6-2 |
| Challenger Istanbul | 2020/10/20 13:55 | Elliot Benchetrit v Cem Ilkel | 4-6,3-6 |
| ATP St Petersburg | 2020/10/10 08:00 | Nino Serdarusic v Cem Ilkel | 7-6,3-6,6-4 |
| French Open | 2020/09/21 10:10 | Cem Ilkel v Prajnesh Gunneswaran | 3-6,1-6 |
| Challenger Iasi | 2020/09/15 08:45 | Cem Ilkel v Malek Jaziri | 2-6,4-6 |
| Davis Cup | 2020/03/07 09:50 | Cem Ilkel v Edan Leshem | 2-6,6-7 |
| Davis Cup | 2020/03/06 08:55 | Cem Ilkel v Daniel Cukierman | 6-7,2-6 |
| ITF M25 Antalya | 2020/02/26 08:45 | Cem Ilkel v Duje Ajdukovic | 4-6,6-4,6-7 |
| ITF M25 Hamburg | 2020/10/19 17:05 | Chun Hsin Tseng v Marvin Moeller | 6-3,7-5 |
| ATP Hamburg | 2020/09/19 08:30 | Lenny Hampel v Marvin Moeller | 6-2,7-6 |
| German Masters | 2020/08/19 12:55 | Filip Cristian Jianu v Marvin Moeller | 6-1,3-6,6-4 |
| German Masters | 2020/08/18 15:35 | Marvin Netuschil v Marvin Moeller | 6-2,7-5 |
| German Masters | 2020/08/17 16:25 | Peter Torebko v Marvin Moeller | 6-4,7-6 |
| DTB German Pro Series | 2020/07/12 08:30 | Daniel Masur v Marvin Moeller | 7-5,2-6,6-1 |
| DTB German Pro Series | 2020/07/11 08:30 | Mats Rosenkranz v Marvin Moeller | 7-5,4-6,6-3 |
| DTB German Pro Series | 2020/07/10 15:30 | Yannick Hanfmann v Marvin Moeller | 6-2,6-4 |