Stadium: Court 1 Round: 25 Ground: Clay
| Challenger Antalya | 2021/12/09 07:00 | Duckhee Lee v Oleg Prihodko | 3-6,3-6 |
| Challenger Antalya | 2021/12/07 07:30 | Duckhee Lee v Fabian Marozsan | 6-4,6-1 |
| Challenger Antalya | 2021/11/30 10:45 | Duckhee Lee v Eduard Esteve Lobato | 2-6,3-6 |
| ITF M15 Cairo | 2021/11/25 10:20 | Duckhee Lee v Daniil Ostapenkov | 6-4,6-3 |
| ITF M15 Cairo | 2021/11/24 08:00 | Duckhee Lee v Luca Tomasetto | 6-3,5-7,6-4 |
| ITF M15 Sharm El Sheikh | 2021/11/20 08:00 | Peter Fajta v Duckhee Lee | 6-3,6-4 |
| ITF M15 Sharm El Sheikh | 2021/11/19 08:00 | Chien Hsun Lo v Duckhee Lee | 2-6,1-6 |
| ITF M15 Sharm El Sheikh | 2021/11/18 09:50 | Neil Oberleitner v Duckhee Lee | 3-6,4-6 |
| ITF M15 Antalya | 2021/12/09 06:00 | Sean Cuenin v Pol Amoros Ramos | 6-3,3-6,10-12 |
| ITF M15 Opava | 2021/11/20 09:00 | David Poljak v Sean Cuenin | 6-4,6-2 |
| ITF M15 Opava | 2021/11/19 09:00 | Sean Cuenin v Lukas Pokorny | 7-5,6-1 |
| ITF M15 Opava | 2021/11/18 09:00 | Adam Pavlasek v Sean Cuenin | 1-6,4-6 |
| ITF M15 Opava | 2021/11/16 12:35 | Sean Cuenin v Michael Gloeckler | 6-2,7-6 |
| ITF M25 Villers Les Nancy | 2021/11/10 10:45 | Dane Sweeny v Sean Cuenin | 6-3,6-1 |
| ITF M15 Monastir | 2021/11/02 10:05 | Ugo Blanchet v Sean Cuenin | 6-3,6-3 |
| ITF M15 Monastir | 2021/10/28 12:00 | Sean Cuenin v Daniel Rincon | 3-6,6-2,4-6 |