|
| R16 | 2021 Bratislava Challenger | Hard | L | Tallon Griekspoor | 7-6(2) 7-6(1) | [H2H] |
| R32 | 2021 Bratislava Challenger | Hard | W | Lukas Palovic | 7-6(4) 7-6(5) | [H2H] |
|
| F | 2021 Bratislava Challenger | Hard | W | Martin Krumich | 6-2 6-2 | [H2H] |
| QF | 2021 Bratislava Challenger | Hard | W | Uladzimir Ignatik | 7-6(8) 6-4 | [H2H] |
|
| R16 | 2021 M25 Prague, Wk. 40 | Hard | L | Uladzimir Ignatik | 6-3 3-6 6-3 | [H2H] |
| R32 | 2021 M25 Prague, Wk. 40 | Hard | W | Daniel Paty | 6-4 6-1 | [H2H] |
|
| QF | 2021 Istanbul Challenger | Hard | L | Nick Chappell | 7-6(7) 6-4 | [H2H] |
|
| F | 2021 Kyiv Challenger | Clay | L | Ivan Gakhov | 6-4 6-2 | [H2H] |
| QF | 2021 Kyiv Challenger | Clay | W | Otto Virtanen | 3-6 6-2 6-4 | [H2H] |
|
| F | 2021 M15 Bratislava, Wk. 34 | Clay | L | Mate Valkusz | 6-0 6-2 | [H2H] |
| SF | 2021 M15 Bratislava, Wk. 34 | Clay | W | Pavel Nejedly | 6-4 6-2 | [H2H] |
| QF | 2021 M15 Bratislava, Wk. 34 | Clay | W | Stefan Palosi | 6-4 7-5 | [H2H] |
| R16 | 2021 M15 Bratislava, Wk. 34 | Clay | W | Gorazd Srbljak | 7-6(4) 6-0 | [H2H] |
| R32 | 2021 M15 Bratislava, Wk. 34 | Clay | W | Lukas Palovic | 6-2 6-2 | [H2H] |
|
| R32 | 2021 M15 Bratislava, Wk. 33 | Clay | L | Peter Fajta | 4-6 6-3 6-2 | [H2H] |
|
| F | 2021 Prague 2 Challenger | Clay | L | Emilio Nava | 6-3 6-2 | [H2H] |
| QF | 2021 Prague 2 Challenger | Clay | W | Kyrian Jacquet | 7-6(6) 6-4 | [H2H] |
|
| R32 | 2021 M25 Kottingbrunn, Wk. 29 | Clay | L | Bogdan Ionut Apostol | 1-6 6-4 6-2 | [H2H] |
|
| R32 | 2021 M25 Telfs, Wk. 28 | Clay | L | Kirill Kivattsev | 6-4 6-3 | [H2H] |
|
| R32 | 2021 M15 Bergamo, Wk. 25 | Clay | L | Edoardo Eremin | 6-1 6-4 | [H2H] |
|
| F | 2021 M15 Novomoskovsk, Wk. 22 | Clay | L | Matias Zukas | 6-4 0-6 6-4 | [H2H] |
| SF | 2021 M15 Novomoskovsk, Wk. 22 | Clay | W | Alex MARTI Pujolras | 6-4 2-6 6-4 | [H2H] |
| QF | 2021 M15 Novomoskovsk, Wk. 22 | Clay | W | Alexander Zgirovsky | 6-2 6-3 | [H2H] |
| R16 | 2021 M15 Novomoskovsk, Wk. 22 | Clay | W | Fermin Tenti | 6-1 6-4 | [H2H] |
| R32 | 2021 M15 Novomoskovsk, Wk. 22 | Clay | W | Bruno PUJOL Navarro | 3-6 6-4 10-7 | [H2H] |
|
| R32 | 2021 M15 Novomoskovsk, Wk. 21 | Clay | L | Fermin Tenti | 6-4 6-2 | [H2H] |
|
| R16 | 2021 M25 Prijedor, Wk. 19 | Clay | L | Nerman Fatic | 7-5 6-2 | [H2H] |
| R32 | 2021 M25 Prijedor, Wk. 19 | Clay | W | Maximilian Neuchrist | 6-2 3-6 6-3 | [H2H] |
|
| R32 | 2021 M15 Monastir, Wk. 16 | Hard | L | Christoph Negritu | 6-2 6-4 | [H2H] |
|
| R16 | 2021 M15 Monastir, Wk. 15 | Hard | L | Franco Agamenone | 6-2 6-0 | [H2H] |
