|
| R32 | 2021 Kyiv Challenger | Clay | L | Sergiy Stakhovsky | 6-2 6-3 | [H2H] |
|
| QF | 2021 Como Challenger | Clay | L | Andrea Vavassori | 4-0 ret. | [H2H] |
|
| R32 | 2021 Barletta Challenger | Clay | L | Julian Ocleppo | 6-4 6-3 | [H2H] |
|
| R32 | 2021 Luedenscheid Challenger | Clay | L | Constant Lestienne | 6-3 7-5 | [H2H] |
|
| QF | 2021 Amersfoort Challenger | Clay | L | Guido Andreozzi | 3-6 6-4 6-2 | [H2H] |
| R16 | 2021 Amersfoort Challenger | Clay | W | Alexey Vatutin | 6-2 6-2 | [H2H] |
| R32 | 2021 Amersfoort Challenger | Clay | W | Jc Aragone | 6-1 6-1 | [H2H] |
|
| F | 2021 M25 The Hague, Wk. 26 | Clay | L | Javier Barranco Cosano | 2-6 6-1 6-1 | [H2H] |
| SF | 2021 M25 The Hague, Wk. 26 | Clay | W | Tim Van Rijthoven | 4-6 6-2 7-6(3) | [H2H] |
| QF | 2021 M25 The Hague, Wk. 26 | Clay | W | Christopher Heyman | 6-3 6-0 | [H2H] |
| R16 | 2021 M25 The Hague, Wk. 26 | Clay | W | Joao Lucas REIS DA Silva | 6-3 6-3 | [H2H] |
| R32 | 2021 M25 The Hague, Wk. 26 | Clay | W | Gijs Brouwer | 7-6(6) 6-4 | [H2H] |
|
| F | 2021 M15 Alkmaar, Wk. 25 | Clay | W | Nicolas ALVAREZ Varona | 6-1 6-3 | [H2H] |
| SF | 2021 M15 Alkmaar, Wk. 25 | Clay | W | Javier Barranco Cosano | 6-2 6-2 | [H2H] |
| QF | 2021 M15 Alkmaar, Wk. 25 | Clay | W | Marko Tepavac | 7-5 6-1 | [H2H] |
| R16 | 2021 M15 Alkmaar, Wk. 25 | Clay | W | Bogdan Bobrov | 6-3 5-7 6-1 | [H2H] |
| R32 | 2021 M15 Alkmaar, Wk. 25 | Clay | W | Joao Lucas REIS DA Silva | 7-5 6-1 | [H2H] |
|
| R32 | 2021 Prostejov Challenger | Clay | L | Andrey Kuznetsov | 6-0 7-6(4) | [H2H] |
|
| F | 2021 Prostejov Challenger | Clay | L | Skander Mansouri | 7-6(5) 6-4 | [H2H] |
| QF | 2021 Prostejov Challenger | Clay | W | Aldin Setkic | 6-3 6-1 | [H2H] |
|
| QF | 2021 Bratislava Challenger | Clay | L | Lucas Miedler | 7-6(2) 7-6(6) | [H2H] |
|
| QF | 2021 M25 Kiseljak, Wk. 21 | Clay | L | Matheus Pucinelle De Almeida | 7-6(5) 6-3 | [H2H] |
| R16 | 2021 M25 Kiseljak, Wk. 21 | Clay | W | Gorazd Srbljak | 6-1 6-3 | [H2H] |
| R32 | 2021 M25 Kiseljak, Wk. 21 | Clay | W | Joao Lucas REIS DA Silva | 6-3 6-2 | [H2H] |
|
| R32 | 2021 M25 Vic, Wk. 20 | Clay | L | Javier Barranco Cosano | 4-6 7-5 6-3 | [H2H] |
|
| R32 | 2021 Salinas Challenger | Hard | L | Aziz Dougaz | 7-6(5) 7-5 | [H2H] |
| R16 | 2021 Salinas Challenger | Hard | L | Marcelo Tomas Barrios Vera | 6-2 6-2 | [H2H] |
| R32 | 2021 Salinas Challenger | Hard | W | Cayetano March | 6-4 6-3 | [H2H] |
|
| R16 | 2021 M25 Biel, Wk. 13 | Hard | L | Sandro Ehrat | 0-6 6-4 7-6(6) | [H2H] |
| R32 | 2021 M25 Biel, Wk. 13 | Hard | W | Julian Lenz | 7-5 6-4 | [H2H] |
