Stadium: Centre Court Round: 25 Ground: Clay
| Challenger Liberec | 2021/08/02 13:35 | Michael Vrbensky v Marc Polmans | 7-6,2-6,5-7 |
| Challenger Trieste | 2021/07/27 13:00 | Flavio Cobolli v Michael Vrbensky | 7-6,6-3 |
| Challenger Amersfoort | 2021/07/15 13:05 | Tallon Griekspoor v Michael Vrbensky | 6-4,6-4 |
| Challenger Amersfoort | 2021/07/13 15:25 | Zizou Bergs v Michael Vrbensky | 4-6,6-7 |
| Challenger Salzburg | 2021/07/04 09:55 | Michael Vrbensky v Denis Yevseyev | 2-6,4-6 |
| Challenger Milan | 2021/06/21 09:00 | Michael Vrbensky v Giulio Zeppieri | 5-7,2-6 |
| Challenger Prostejov | 2021/06/16 08:30 | Michael Vrbensky v Hugo Dellien | 1-6,2-6 |
| Challenger Prostejov | 2021/06/14 10:25 | Goncalo Oliveira v Michael Vrbensky | 3-6,6-2,4-6 |
| Challenger Almaty | 2021/06/15 04:00 | Evgeny Tyurnev v Denis Yevseyev | 7-6,3-6,5-7 |
| Challenger Almaty | 2021/06/07 10:05 | Evgeny Tyurnev v Joao Menezes | 3-6,1-6 |
| ITF M15 Sibenik | 2021/05/17 07:55 | Evgeny Tyurnev v Moritz Trocker | 6-2,6-4 |
| Challenger Zagreb | 2021/05/09 12:00 | Ernests Gulbis v Evgeny Tyurnev | 6-3,7-5 |
| ITF M15 St Petersburg | 2021/04/15 09:00 | Evgeny Tyurnev v Petr Bar Biryukov | 6-1,6-1 |
| ITF M15 St Petersburg | 2021/04/13 08:55 | Evgeny Tyurnev v Alexander Igoshin | 6-2,6-4 |
| ITF M15 St Petersburg | 2021/04/08 09:00 | Evgeny Tyurnev v Alexander Cozbinov | 6-2,3-6,2-6 |
| ITF M15 St Petersburg | 2021/04/06 13:10 | Evgeny Tyurnev v Vladimir Ivanov | 6-1,6-4 |