Stadium: Court 2 Round: 26 Ground: Clay
| Challenger Antalya | 2021/01/28 08:00 | Mayer, Leonardo v Tallon Griekspoor | 6-2,6-2 |
| French Open, Paris, France | 2020/09/25 08:00 | Mayer, Leonardo v Nikola Milojevic | 7-6,2-6,3-6 |
| French Open, Paris, France | 2020/09/23 13:20 | Mayer, Leonardo v Carlos Taberner | 6-3,6-3 |
| French Open, Paris, France | 2020/09/22 10:00 | Mayer, Leonardo v Polansky, Peter | 7-5,6-0 |
| ATP - Rome | 2020/09/13 10:50 | Mayer, Leonardo v Lorenzo Musetti | 6-7,3-6 |
| ATP - Rome | 2020/09/12 12:05 | Jacopo Berrettini v Mayer, Leonardo | 3-6,2-6 |
| Challenger - Aix en Provence | 2020/09/09 09:40 | Oscar Otte v Mayer, Leonardo | 7-6,6-3 |
| Challenger - Aix en Provence | 2020/09/07 13:20 | Mayer, Leonardo v Hugo Dellien | 6-3,6-2 |
| Challenger Antalya | 2021/01/28 09:05 | Joao Menezes v Cem Ilkel | 3-6,4-6 |
| Istanbul, Turkey | 2021/01/19 11:15 | Brandon Nakashima v Cem Ilkel | 3-6,6-4,6-3 |
| Open d'Australie | 2021/01/12 14:15 | Quentin Halys v Cem Ilkel | 2-6,7-6,6-1 |
| Open d'Australie | 2021/01/11 16:05 | Cem Ilkel v Gojowczyk, Peter | 6-2,6-3 |
| ITF - M15 Antalya | 2020/12/09 06:30 | Cem Ilkel v Billy Harris | 6-7,4-6 |
| ITF - M15 Antalya | 2020/12/03 11:15 | Cem Ilkel v Sebastian Gima | 6-4,6-7,4-6 |
| ITF - M15 Antalya | 2020/12/02 07:00 | Cem Ilkel v Jirousek, Tomas | 6-4,6-3 |
| Challenger - Hambourg | 2020/10/24 12:00 | Cem Ilkel v Marvin Moeller | 7-6,3-6,4-6 |