|
| SF | 2021 M25 Kottingbrunn, Wk. 29 | Clay | L | Mate Valkusz | 7-6(4) 2-3 ret. | [H2H] |
| QF | 2021 M25 Kottingbrunn, Wk. 29 | Clay | W | Pavel Nejedly | 6-4 6-7(5) 6-3 | [H2H] |
| R16 | 2021 M25 Kottingbrunn, Wk. 29 | Clay | W | Toby Martin | 6-3 6-1 | [H2H] |
| R32 | 2021 M25 Kottingbrunn, Wk. 29 | Clay | W | Peter Goldsteiner | 6-4 6-1 | [H2H] |
|
| F | 2021 M15 Doboj, Wk. 28 | Clay | W | Peter Fajta | 6-3 6-2 | [H2H] |
| SF | 2021 M15 Doboj, Wk. 28 | Clay | W | Dusan Obradovic | 6-1 6-3 | [H2H] |
| QF | 2021 M15 Doboj, Wk. 28 | Clay | W | Andrew Fenty | 6-4 6-2 | [H2H] |
| R16 | 2021 M15 Doboj, Wk. 28 | Clay | W | Felix Gill | 7-5 6-7(3) 6-2 | [H2H] |
| R32 | 2021 M15 Doboj, Wk. 28 | Clay | W | Boris Butulija | 6-1 7-6(2) | [H2H] |
|
| R32 | 2021 M15 Antalya, Wk. 26 | Clay | L | Francisco Comesana | 6-2 4-6 7-6(1) | [H2H] |
|
| R32 | 2021 M15 Antalya, Wk. 24 | Clay | L | Matias Zukas | 6-3 6-1 | [H2H] |
|
| SF | 2021 M25 Kiseljak, Wk. 21 | Clay | L | Francesco Forti | 7-6(2) 3-6 6-2 | [H2H] |
| QF | 2021 M25 Kiseljak, Wk. 21 | Clay | W | Hernan Casanova | 7-5 6-1 | [H2H] |
| R16 | 2021 M25 Kiseljak, Wk. 21 | Clay | W | Sebastian Prechtel | 6-3 6-4 | [H2H] |
| R32 | 2021 M25 Kiseljak, Wk. 21 | Clay | W | Peter Goldsteiner | 6-3 7-5 | [H2H] |
|
| SF | 2021 M15 Sibenik, Wk. 20 | Clay | L | Hernan Casanova | 6-2 6-4 | [H2H] |
| QF | 2021 M15 Sibenik, Wk. 20 | Clay | W | Fabian Marozsan | 6-2 6-1 | [H2H] |
| R16 | 2021 M15 Sibenik, Wk. 20 | Clay | W | Sebastian Prechtel | 6-1 6-1 | [H2H] |
| R32 | 2021 M15 Sibenik, Wk. 20 | Clay | W | Dino Prizmic | 6-2 6-3 | [H2H] |
|
| R32 | 2021 M15 Rovinj, Wk. 11 | Clay | L | Giovanni Fonio | 6-3 6-3 | [H2H] |
|
| SF | 2021 M15 Bratislava, Wk. 9 | Hard | L | Vitaliy Sachko | 3-6 6-3 6-4 | [H2H] |
| QF | 2021 M15 Bratislava, Wk. 9 | Hard | W | Kyrian Jacquet | 6-4 6-3 | [H2H] |
| R16 | 2021 M15 Bratislava, Wk. 9 | Hard | W | Lukas Palovic | 6-3 6-2 | [H2H] |
| R32 | 2021 M15 Bratislava, Wk. 9 | Hard | W | Dominik Recek | 6-4 6-3 | [H2H] |
|
| QF | 2021 M15 Sharm El Sheikh, Wk. 6 | Hard | L | Nicolas Moreno De Alboran | 6-0 4-6 6-1 | [H2H] |
| R16 | 2021 M15 Sharm El Sheikh, Wk. 6 | Hard | W | Yu Hsiou Hsu | 0-6 6-3 6-2 | [H2H] |
| R32 | 2021 M15 Sharm El Sheikh, Wk. 6 | Hard | W | Shintaro Imai | 6-3 1-6 7-6(6) | [H2H] |
|
| R16 | 2021 M15 Sharm El Sheikh, Wk. 5 | Hard | L | Peter Fajta | 6-3 4-6 6-3 | [H2H] |
| R32 | 2021 M15 Sharm El Sheikh, Wk. 5 | Hard | W | Aldin Setkic | 4-6 6-3 6-4 | [H2H] |
|
| R16 | 2020 M15 Heraklion, Wk. 44 | Hard | L | Toby Alex Kodat | 6-4 6-4 | [H2H] |
