Stadium: Court 4 Round: 27 Ground: Hardcourt outdoor
| ITF M15 Sharm El Sheikh | 2021/11/18 08:00 | Kelsey Stevenson v Chien Hsun Lo | 6-7,5-7 |
| ITF M15 Sharm El Sheikh | 2021/11/17 10:40 | Dostanbek Tashbulatov v Chien Hsun Lo | 2-6,0-6 |
| ITF M15 Sharm El Sheikh | 2021/11/11 08:00 | Chien Hsun Lo v Emiliano Maggioli | 1-6,0-6 |
| ITF M15 Sharm El Sheikh | 2021/11/10 11:45 | Chien Hsun Lo v Dostanbek Tashbulatov | 4-6,6-2,7-6 |
| ITF M15 Sharm El Sheikh | 2021/11/03 13:25 | Menelaos Efstathiou v Chien Hsun Lo | 6-1,6-0 |
| ITF M15 Sharm El Sheikh | 2021/10/27 11:55 | Kelsey Stevenson v Chien Hsun Lo | 6-3,6-0 |
| ITF M15 Sharm El Sheikh | 2021/10/06 14:00 | Chien Hsun Lo v Gabriel Decamps | 2-6,2-6 |
| ITF M15 Sharm El Sheikh | 2021/02/28 07:00 | Chien Hsun Lo v Edoardo Eremin | 4-6,3-6 |
| 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 | 2021/06/24 10:10 | Oscar Weightman v Duckhee Lee | 3-6,7-6,3-6 |
| ITF M15 Monastir | 2021/06/22 12:15 | Andre Ghem v Duckhee Lee | 2-6,2-6 |