Stadium: Court 2 Round: 25 Ground: Clay
| 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 Sharm-el-Sheikh | 2021/11/17 12:50 | Erik Arutiunian v Duckhee Lee | 2-6,0-6 |
| ITF - M15 Sharm-el-Sheikh | 2021/11/10 12:50 | Daniel Little v Duckhee Lee | 7-6,7-6 |
| Challenger - Columbus | 2021/09/19 20:15 | Duckhee Lee v Evan Song | 3-6,6-7 |
| ITF - M15 Monastir | 2021/06/30 10:35 | Omni Kumar v Duckhee Lee | 6-0,6-2 |
| ITF - M15 Monastir | 2021/06/25 10:30 | Imanol L Morillo v Duckhee Lee | 7-5,7-6 |
| ITF - M15 Monastir | 2021/10/21 13:00 | Luca Tomasetto v Moerani Bouzige | 6-4,1-6,4-6 |
| ITF - M15 Monastir | 2021/10/19 08:30 | Wissam Abderrahman v Luca Tomasetto | 6-7,6-3,3-6 |
| ITF M15 - Caïro | 2021/09/17 08:00 | Luca Tomasetto v Leonardo Aboian | 1-6,6-0,4-6 |
| ITF M15 - Caïro | 2021/09/16 08:00 | Valerio Aboian v Luca Tomasetto | 3-6,6-1,2-6 |
| ITF M15 - Caïro | 2021/09/15 08:00 | Jordan Chiu v Luca Tomasetto | 6-4,1-6,2-6 |
| ITF M15 - Caïro | 2021/09/10 10:40 | Luca Tomasetto v Biagio Gramaticopolo | 5-7,6-2,6-7 |
| ITF M15 - Caïro | 2021/09/09 08:00 | Luca Tomasetto v Valerio Aboian | 6-3,6-3 |
| ITF M15 - Caïro | 2021/09/08 10:00 | Luca Tomasetto v Tobias Franco | 6-4,6-4 |