|
| R16 | 2021 M15 Bratislava, Wk. 33 | Clay | L | Robin Stanek | 6-4 6-4 | [H2H] |
| R32 | 2021 M15 Bratislava, Wk. 33 | Clay | W | Patrik Niklas-Salminen | 6-1 7-6(7) | [H2H] |
|
| R16 | 2021 M15 Xativa, Wk. 31 | Clay | L | Imanol LOPEZ Morillo | 6-2 6-3 | [H2H] |
| R32 | 2021 M15 Xativa, Wk. 31 | Clay | W | Nacho Serra Sanchez | 6-0 6-4 | [H2H] |
|
| F | 2021 M25 Denia, Wk. 30 | Clay | L | Giacomo Revelli | 6-2 6-4 | [H2H] |
| SF | 2021 M25 Denia, Wk. 30 | Clay | W | Carlos Joaquin Ramos Membrives | 6-3 6-0 | [H2H] |
| QF | 2021 M25 Denia, Wk. 30 | Clay | W | Gerard Planelles Ripoll | 6-3 6-1 | [H2H] |
|
| SF | 2021 M25 Gandia, Wk. 29 | Clay | L | Chak Lam Coleman Wong | 7-5 4-6 10-5 | [H2H] |
| QF | 2021 M25 Gandia, Wk. 29 | Clay | W | Inaki Cabrera Bello | 6-4 6-2 | [H2H] |
|
| SF | 2021 M15 Sofia, Wk. 27 | Clay | L | Matteo DE Vincentis | 6-1 7-5 | [H2H] |
| QF | 2021 M15 Sofia, Wk. 27 | Clay | W | Vladimir Filip | 6-2 6-4 | [H2H] |
|
| SF | 2021 M25 Belgrade, Wk. 26 | Clay | L | Martin Zeljenka | 7-5 6-3 | [H2H] |
| QF | 2021 M25 Belgrade, Wk. 26 | Clay | W | Nemanja Malesevic | 4-6 7-6(3) 12-10 | [H2H] |
|
| QF | 2021 M15 Bergamo, Wk. 25 | Clay | L | Kirill Kivattsev | 6-2 6-4 | [H2H] |
|
| SF | 2021 M25 Grasse, Wk. 24 | Clay | L | Rayane Stable | 7-5 6-3 | [H2H] |
|
| R16 | 2021 M15 Helsinki, Wk. 22 | Clay | L | Clement Tabur | 6-3 6-3 | [H2H] |
| R32 | 2021 M15 Helsinki, Wk. 22 | Clay | W | Iiro Vasa | 6-2 6-4 | [H2H] |
|
| F | 2021 M15 Helsinki, Wk. 22 | Clay | W | Daniel Svensson | 6-3 6-4 | [H2H] |
| QF | 2021 M15 Helsinki, Wk. 22 | Clay | W | Hermanni Tiainen | 7-6(9) 6-1 | [H2H] |
|
| QF | 2021 M25 Vic, Wk. 20 | Clay | L | Inaki Cabrera Bello | 6-4 4-6 11-9 | [H2H] |
|
| QF | 2021 M15 Valldoreix, Wk. 19 | Clay | L | Ryan Nijboer | 7-6(5) 6-2 | [H2H] |
|
| R16 | 2021 M15 St. Petersburg, Wk. 15 | Hard | L | Savriyan Danilov | 6-3 6-1 | [H2H] |
| R32 | 2021 M15 St. Petersburg, Wk. 15 | Hard | W | Boris Pokotilov | 6-4 6-7(6) 6-3 | [H2H] |
|
| F | 2021 M15 St. Petersburg, Wk. 15 | Hard | W | Stepan Pecak | 7-5 6-3 | [H2H] |
| QF | 2021 M15 St. Petersburg, Wk. 15 | Hard | W | Egor Novikov | 6-2 6-4 | [H2H] |
|
| QF | 2021 M15 St. Petersburg, Wk. 14 | Hard | L | Martin Borisiouk | 6-3 6-4 | [H2H] |
|
| F | 2021 M25 La Nucia, Wk. 11 | Clay | L | Imanol LOPEZ Morillo | 6-2 6-3 | [H2H] |
| SF | 2021 M25 La Nucia, Wk. 11 | Clay | W | Lluc Mir Anglada | 7-6(5) 6-0 | [H2H] |
| QF | 2021 M25 La Nucia, Wk. 11 | Clay | W | Higinio Sanchis Melero | 6-1 6-1 | [H2H] |
|
| QF | 2021 M15 La Nucia, Wk. 10 | Clay | L | Lucas Bouquet | 6-0 6-1 | [H2H] |
