Stadium: Court 1 Round: 25 Ground: Clay
| UTR Pro Tennis Series Pazardzhik | 2021/04/11 07:00 | Lucas Bouquet v Gergely Madarasz | 6-3,4-6,1-5 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/10 10:30 | Gergely Madarasz v Gabriel Donev | 4-6,6-3,6-0 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/09 11:00 | Gergely Madarasz v Anthony Genov | 6-7,1-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/08 10:00 | Gergely Madarasz v Alexander Lazov | 6-4,7-5 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/07 08:00 | Jules Marie v Gergely Madarasz | 2-6,6-1,6-2 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/06 07:00 | Mick Lescure v Gergely Madarasz | 2-6,3-6 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/04 08:30 | Dragos Dima v Gergely Madarasz | 6-4,6-3 |
| UTR Pro Tennis Series Pazardzhik | 2021/04/03 07:00 | Gergely Madarasz v Eric Vanshelboim | 1-1 |
| ITF M25 Meerbusch | 2021/04/15 10:00 | Alexander Erler v Yannick Mertens | 6-3,3-6,6-1 |
| ITF M25 Meerbusch | 2021/04/13 13:30 | Yannick Mertens v Jeroen Vanneste | 6-3,6-4 |
| ITF M15 Monastir | 2021/03/11 08:30 | Yannick Mertens v Naoki Nakagawa | 6-4,3-6,4-6 |
| ITF M15 Monastir | 2021/03/10 10:30 | Yannick Mertens v Constantin Schmitz | 6-0,6-2 |
| ITF M15 Monastir | 2021/02/13 08:30 | Yannick Mertens v Gauthier Onclin | 6-3,1-6,2-6 |
| ITF M15 Monastir | 2021/02/12 10:05 | Yannick Mertens v Juan Bautista Torres | 6-2,6-3 |
| ITF M15 Monastir | 2021/02/11 08:25 | Yannick Mertens v Lukas Mugevicius | 6-1,6-1 |
| ITF M15 Monastir | 2021/02/10 08:30 | Yannick Mertens v Stuart Parker | 5-7,6-4,6-3 |