|
| R32 | 2021 M15 Cairo, Wk. 30 | Clay | L | Gustavo Heide | 6-4 2-6 6-0 | [H2H] |
|
| R32 | 2021 M25 Uriage, Wk. 28 | Clay | L | Arthur Fils | 4-6 6-3 7-6(8) | [H2H] |
|
| R32 | 2021 M15 Sofia, Wk. 27 | Clay | L | Oleg Prihodko | 3-6 7-5 6-4 | [H2H] |
|
| R16 | 2021 M25 Belgrade, Wk. 26 | Clay | L | Daniel Cukierman | 3-6 6-4 6-4 | [H2H] |
| R32 | 2021 M25 Belgrade, Wk. 26 | Clay | W | Dan Added | 6-2 6-2 | [H2H] |
|
| F | 2021 M25 Belgrade, Wk. 26 | Clay | W | Dusan Obradovic | 6-2 7-6(2) | [H2H] |
| SF | 2021 M25 Belgrade, Wk. 26 | Clay | W | Stefan Ivic | 6-3 7-5 | [H2H] |
| QF | 2021 M25 Belgrade, Wk. 26 | Clay | W | Milos Mikovic | 6-3 6-2 | [H2H] |
|
| F | 2021 M15 Bergamo, Wk. 25 | Clay | L | Francesco Vilardo | 7-6(5) 3-6 10-7 | [H2H] |
| QF | 2021 M15 Bergamo, Wk. 25 | Clay | W | Pietro Rondoni | 6-2 7-6(3) | [H2H] |
|
| SF | 2021 M25 Grasse, Wk. 24 | Clay | L | Thomas Deschamps (FRA) | 6-3 6-0 | [H2H] |
|
| QF | 2021 M15 Helsinki, Wk. 22 | Clay | L | Karl Friberg | 7-5 4-6 6-3 | [H2H] |
| R16 | 2021 M15 Helsinki, Wk. 22 | Clay | W | Rimpei Kawakami | 7-5 6-2 | [H2H] |
| R32 | 2021 M15 Helsinki, Wk. 22 | Clay | W | Jonathan Eysseric | 2-6 6-2 6-4 | [H2H] |
|
| QF | 2021 M15 Bucharest, Wk. 21 | Clay | L | Uladzimir Ignatik | 4-6 7-6(5) ret. | [H2H] |
| R16 | 2021 M15 Bucharest, Wk. 21 | Clay | W | Cristian Rodriguez | 6-4 6-2 | [H2H] |
| R32 | 2021 M15 Bucharest, Wk. 21 | Clay | W | Matei Adrian Georgescu | 6-0 6-2 | [H2H] |
|
| F | 2021 M15 Bucharest, Wk. 21 | Clay | W | Taiyo Yamanaka | 6-1 6-4 | [H2H] |
| SF | 2021 M15 Bucharest, Wk. 21 | Clay | W | Valentin Vanta | 6-3 6-3 | [H2H] |
| QF | 2021 M15 Bucharest, Wk. 21 | Clay | W | Peter Samosi | 6-2 6-1 | [H2H] |
|
| R32 | 2021 M15 Sibenik, Wk. 20 | Clay | L | Tom Kocevar-Desman | 6-3 7-6(3) | [H2H] |
|
| F | 2021 M15 Sibenik, Wk. 20 | Clay | W | Martin Breysach | 7-5 6-1 | [H2H] |
| SF | 2021 M15 Sibenik, Wk. 20 | Clay | W | Max Van Wijk | 6-2 6-2 | [H2H] |
| QF | 2021 M15 Sibenik, Wk. 20 | Clay | W | Luka Miklavcic | 6-4 6-1 | [H2H] |
|
| QF | 2021 M15 St. Petersburg, Wk. 14 | Hard | L | Constantin Bittoun Kouzmine | 1-6 6-1 10-7 | [H2H] |
|
| SF | 2021 M15 Poitiers, Wk. 11 | Hard | L | George Loffhagen | 4-2 ret. | [H2H] |
| QF | 2021 M15 Poitiers, Wk. 11 | Hard | W | Edan Leshem | 6-4 6-3 | [H2H] |
| R16 | 2021 M15 Poitiers, Wk. 11 | Hard | W | Alexis Gautier | 7-5 6-3 | [H2H] |
| R32 | 2021 M15 Poitiers, Wk. 11 | Hard | W | Robert Strombachs | 6-4 6-4 | [H2H] |
|
| F | 2021 M15 Poitiers, Wk. 11 | Hard | W | Maxence Beauge | 6-4 5-7 10-6 | [H2H] |
