|
| QF | 2021 M25 Bagneres-De-Bigorre, Wk. 35 | Hard | L | Arthur Fils | 6-4 2-6 6-4 | [H2H] |
| R16 | 2021 M25 Bagneres-De-Bigorre, Wk. 35 | Hard | W | Alibek Kachmazov | 6-2 6-3 | [H2H] |
| R32 | 2021 M25 Bagneres-De-Bigorre, Wk. 35 | Hard | W | Hugo Pontico | 6-1 2-1 ret. | [H2H] |
|
| R16 | 2021 Prague 3 Challenger | Clay | L | Genaro Alberto Olivieri | 6-3 6-4 | [H2H] |
| R32 | 2021 Prague 3 Challenger | Clay | W | Alexey Vatutin | 6-3 6-0 | [H2H] |
|
| R16 | 2021 M25 Decatur, Wk. 31 | Hard | L | Paul Jubb | 6-3 4-6 6-2 | [H2H] |
| R32 | 2021 M25 Decatur, Wk. 31 | Hard | W | Michail Pervolarakis | 6-4 6-4 | [H2H] |
|
| SF | 2021 M25 Champaign, Wk. 30 | Hard | L | Ben Shelton | 6-4 6-1 | [H2H] |
| QF | 2021 M25 Champaign, Wk. 30 | Hard | W | Alfredo Perez | 3-6 6-1 6-3 | [H2H] |
| R16 | 2021 M25 Champaign, Wk. 30 | Hard | W | Felix Corwin | 7-6(6) 6-4 | [H2H] |
| R32 | 2021 M25 Champaign, Wk. 30 | Hard | W | Hunter Heck | 6-2 2-6 6-4 | [H2H] |
|
| R16 | 2021 Nur | Hard | L | Ryan Peniston | 6-3 6-4 | [H2H] |
| R32 | 2021 Nur | Hard | W | Alessandro Bega | 6-3 1-6 6-3 | [H2H] |
| QF | 2021 Nur | Hard | L | Max Purcell | 6-2 6-1 | [H2H] |
| R16 | 2021 Nur | Hard | W | Evgeny Karlovskiy | 6-3 6-0 | [H2H] |
| R32 | 2021 Nur | Hard | W | Hugo Grenier | 6-4 6-2 | [H2H] |
|
| F | 2021 M25 Nur-Sultan, Wk. 27 | Hard | W | Evgeny Karlovskiy | | [H2H] |
| SF | 2021 M25 Nur-Sultan, Wk. 27 | Hard | W | Andrey Kuznetsov | 7-5 6-1 | [H2H] |
| QF | 2021 M25 Nur-Sultan, Wk. 27 | Hard | W | Lucas Catarina | 6-2 7-5 | [H2H] |
| R16 | 2021 M25 Nur-Sultan, Wk. 27 | Hard | W | Martin Borisiouk | 6-0 2-6 6-3 | [H2H] |
| R32 | 2021 M25 Nur-Sultan, Wk. 27 | Hard | W | Tung-Lin Wu | 6-7(3) 6-0 6-2 | [H2H] |
|
| R16 | 2021 M25 The Hague, Wk. 26 | Clay | L | Javier Barranco Cosano | 6-2 6-3 | [H2H] |
| R32 | 2021 M25 The Hague, Wk. 26 | Clay | W | Carlos LOPEZ Montagud | 6-1 3-6 6-3 | [H2H] |
|
| R16 | 2021 M15 Antalya, Wk. 25 | Clay | L | Mariano Kestelboim | 6-4 6-2 | [H2H] |
| R32 | 2021 M15 Antalya, Wk. 25 | Clay | W | Thijmen Loof | 6-1 2-0 ret. | [H2H] |
|
| R16 | 2021 M15 Antalya, Wk. 24 | Clay | L | Marsel Ilhan | 3-6 7-6(8) 6-2 | [H2H] |
| R32 | 2021 M15 Antalya, Wk. 24 | Clay | W | Burak Bilgin | 6-2 6-1 | [H2H] |
|
| R32 | 2021 M15 Antalya, Wk. 23 | Clay | L | Joao Lucas REIS DA Silva | 7-5 7-6(4) | [H2H] |
|
| F | 2021 M15 Sharm El Sheikh, Wk. 12 | Hard | W | Makoto Ochi | 6-2 6-1 | [H2H] |
| SF | 2021 M15 Sharm El Sheikh, Wk. 12 | Hard | W | Marcello Serafini | 6-2 6-3 | [H2H] |
