|
| QF | 2021 M15 Monastir, Wk. 35 | Hard | L | Kyle Seelig | 6-4 6-4 | [H2H] |
| R16 | 2021 M15 Monastir, Wk. 35 | Hard | W | Terence Atmane | 6-1 6-4 | [H2H] |
| R32 | 2021 M15 Monastir, Wk. 35 | Hard | W | Marc Ros Mesas | 6-0 6-0 | [H2H] |
|
| R16 | 2021 M15 Monastir, Wk. 34 | Hard | L | Li Tu | 3-6 6-0 6-3 | [H2H] |
| R32 | 2021 M15 Monastir, Wk. 34 | Hard | W | Alan Fernando RUBIO Fierros | 6-4 6-3 | [H2H] |
|
| R16 | 2021 M15 Monastir, Wk. 33 | Hard | L | Yuki Mochizuki | 7-6(3) 3-6 6-2 | [H2H] |
| R32 | 2021 M15 Monastir, Wk. 33 | Hard | W | Luis Diego Chavez Villalpando | 6-4 6-3 | [H2H] |
|
| QF | 2021 M15 Monastir, Wk. 32 | Hard | L | Aziz Dougaz | 3-6 6-3 7-5 | [H2H] |
| R16 | 2021 M15 Monastir, Wk. 32 | Hard | W | Ajeet Rai | 6-3 7-6(3) | [H2H] |
| R32 | 2021 M15 Monastir, Wk. 32 | Hard | W | Keisuke Saitoh | 6-1 6-4 | [H2H] |
|
| R32 | 2021 M25 Decatur, Wk. 31 | Hard | L | Aidan Mchugh | 6-3 6-3 | [H2H] |
|
| F | 2021 M25 Decatur, Wk. 31 | Hard | W | Nicholas Bybel | 6-3 6-1 | [H2H] |
| QF | 2021 M25 Decatur, Wk. 31 | Hard | W | Chad Kissell | 1-6 7-5 10-3 | [H2H] |
|
| QF | 2021 M25 Champaign, Wk. 30 | Hard | L | Gijs Brouwer | 6-0 7-6(9) | [H2H] |
| R16 | 2021 M25 Champaign, Wk. 30 | Hard | W | Strong Kirchheimer | 6-0 5-7 6-3 | [H2H] |
| R32 | 2021 M25 Champaign, Wk. 30 | Hard | W | Shintaro Imai | 6-1 3-6 6-3 | [H2H] |
|
| R32 | 2021 M15 Edwardsville, Wk. 29 | Hard | L | Bruno Kuzuhara | 7-6(5) 1-6 6-3 | [H2H] |
|
| R16 | 2021 M15 Weston, Wk. 26 | Clay | L | Gerardo Lopez Villasenor | 6-2 6-3 | [H2H] |
| R32 | 2021 M15 Weston, Wk. 26 | Clay | W | Kento Takeuchi | 7-6(4) 6-3 | [H2H] |
|
| R16 | 2021 M15 Champaign, Wk. 25 | Hard | L | Gage Brymer | 7-6(0) 7-6(4) | [H2H] |
| R32 | 2021 M15 Champaign, Wk. 25 | Hard | W | Kento Takeuchi | 6-1 6-4 | [H2H] |
|
| QF | 2021 M25 Tulsa, Wk. 24 | Hard | L | Charles Broom | 6-3 5-7 10-8 | [H2H] |
|
| R16 | 2021 M25 Wichita, Wk. 23 | Hard | L | Michail Pervolarakis | 6-4 6-4 | [H2H] |
| R32 | 2021 M25 Wichita, Wk. 23 | Hard | W | Matt Kuhar | 6-3 0-6 6-4 | [H2H] |
|
| QF | 2021 Little Rock Challenger | Hard | L | Michael Redlicki | 6-1 6-4 | [H2H] |
|
| R32 | 2021 Adelaide International | Hard | L | Aljaz Bedene | 6-0 6-4 | [H2H] |
| R64 | 2021 Adelaide International | Hard | W | Ji Sung Nam | 7-6(4) 7-5 | [H2H] |
|
| F | 2021 Australian Qualifying | Hard | L | Sergiy Stakhovsky | 2-6 6-3 6-1 | [H2H] |
| SF | 2021 Australian Qualifying | Hard | W | Denis Kudla | w/o | [H2H] |
| QF | 2021 Australian Qualifying | Hard | W | Marius Copil | 7-6(3) 2-6 6-3 | [H2H] |
