Stadium: Court 3 Round: 25 Ground: Clay
| ITF M15 Antalya | 2021/03/06 07:15 | Joao Lucas Reis da Silva v Dragos Nicolae Madaras | 2-6,1-6 |
| ITF M15 Antalya | 2021/03/05 07:00 | Sebastian Gima v Joao Lucas Reis da Silva | 4-6,1-6 |
| ITF M15 Antalya | 2021/03/04 07:00 | Joao Lucas Reis da Silva v Matias Zukas | 5-7,6-4,7-6 |
| ITF M15 Antalya | 2021/03/02 09:00 | Joao Lucas Reis da Silva v Simone Roncalli | 6-2,6-3 |
| ITF M15 Antalya | 2021/02/24 09:35 | Matheus P De Almeida v Joao Lucas Reis da Silva | 6-3,6-2 |
| ITF M15 Antalya | 2021/02/18 11:30 | Giovanni Fonio v Joao Lucas Reis da Silva | 6-4,2-6,7-5 |
| ITF M15 Antalya | 2021/02/16 10:05 | Joao Lucas Reis da Silva v Toby Alex Kodat | 6-0,6-4 |
| ITF M15 Antalya | 2021/02/07 06:00 | Joao Lucas Reis da Silva v Max Houkes | 4-6,4-6 |
| Challenger St. Petersburg | 2021/02/28 07:00 | Jiri Lehecka v Ergi Kirkin | 7-6,7-5 |
| Challenger Antalya | 2021/02/02 12:30 | Ergi Kirkin v Jaume Munar | 3-6,3-6 |
| Challenger Antalya | 2021/01/28 09:40 | Emilio Gomez v Ergi Kirkin | 6-4,6-1 |
| Challenger Istanbul | 2021/01/22 10:40 | Ergi Kirkin v Jozef Kovalík | 7-6,0-6,6-7 |
| Challenger Istanbul | 2021/01/20 10:30 | Joao Menezes v Ergi Kirkin | 2-6,6-7 |
| Challenger Istanbul | 2021/01/18 10:25 | Ergi Kirkin v Paolo Lorenzi | 6-4,6-2 |
| ATP Antalya | 2021/01/08 08:45 | Matteo Berrettini v Ergi Kirkin | 6-0,6-4 |
| ITF M15 Monastir | 2020/12/06 08:30 | Titouan Droguet v Ergi Kirkin | 3-6,1-6 |