Stadium: Court 6 Round: 25 Ground: Hardcourt indoor
| ITF M15 St Petersburg | 2021/04/07 08:50 | Gijs Brouwer v Patrik Rikl | 6-2,4-6,7-5 |
| ITF M15 Bratislava | 2021/03/12 09:00 | Fabian Marozsan v Patrik Rikl | 4-6,6-3,6-4 |
| ITF M15 Bratislava | 2021/03/11 09:00 | Patrik Rikl v Vitaliy Sachko | 6-4,3-6,6-3 |
| ITF M15 Bratislava | 2021/03/10 13:40 | Patrik Rikl v Amaury Raynel | 6-3,6-1 |
| ITF M15 Bratislava | 2021/03/05 12:20 | Patrik Rikl v Jurgen Briand | 5-7,1-6 |
| ITF M15 Bratislava | 2021/03/04 09:00 | Jonathan Eysseric v Patrik Rikl | 6-7,4-6 |
| ITF M15 Bratislava | 2021/03/02 12:00 | Lenny Hampel v Patrik Rikl | 3-6,7-6,2-6 |
| ITF M15 St Petersburg | 2021/02/12 08:30 | Evgeny Tyurnev v Patrik Rikl | 6-1,6-2 |
| ITF M15 St Petersburg | 2021/04/09 09:40 | Aristarkh Safonov v Jan Satral | 4-6,2-6 |
| ITF M15 St Petersburg | 2021/04/08 09:00 | Matic Spec v Aristarkh Safonov | 3-6,5-7 |
| ITF M15 St Petersburg | 2021/04/06 07:00 | Alexander Wolfschmidt v Aristarkh Safonov | 6-4,1-6,5-7 |