Stadium: Court 2 Round: 25 Ground: Clay
| Braunchsweig, Germany | 2021/07/06 10:30 | Benjamin Hassan v Kelly, Dayne | 6-4,7-6 |
| Braunchsweig, Germany | 2021/07/05 09:30 | Hidalgo, Diego v Kelly, Dayne | 3-6,7-6,3-6 |
| ITF M25 The Hague | 2021/07/01 14:05 | Kelly, Dayne v Tepavac, Marko | 6-7,3-6 |
| ITF M25 The Hague | 2021/06/29 15:00 | Kelly, Dayne v Guy Den Heijer | 6-1,6-4 |
| ITF M25 Montauban | 2021/06/24 10:00 | Valentin Royer v Kelly, Dayne | 7-6,6-2 |
| ITF M25 Montauban | 2021/06/23 08:25 | Pourroy, Loris v Kelly, Dayne | 4-6,4-6 |
| Orlando, USA | 2021/06/08 16:00 | Kelly, Dayne v Guido Andreozzi | 6-4,4-6,5-7 |
| Orlando, USA | 2021/06/07 16:00 | Bangoura, Sekou v Kelly, Dayne | 6-7,3-6 |
| ITF M25 Wetzlar | 2021/08/03 08:55 | Hidalgo, Gabriel Alejandro v Recek, Dominik | 6-2,6-3 |
| ITF M25 Wetzlar | 2021/08/02 09:30 | Hidalgo, Gabriel Alejandro v Penzlin, Julien | 6-1,7-5 |
| ITF M15 Esch/Alzette | 2021/07/23 09:00 | Hidalgo, Gabriel Alejandro v Nicholas David Ionel | 4-6,0-6 |
| ITF M15 Esch/Alzette | 2021/07/22 10:00 | Hidalgo, Gabriel Alejandro v Alexander Weis | 6-2,6-7,7-5 |
| ITF M15 Esch/Alzette | 2021/07/21 08:55 | Dan Added v Hidalgo, Gabriel Alejandro | 6-2,4-6,4-6 |
| Hurlingham, Singles Qualifying M-ITF-ARG-02A | 2020/03/03 13:00 | Hidalgo, Gabriel Alejandro v Jose Pereira | 2-6,6-7 |
| Hurlingham, Singles Qualifying M-ITF-ARG-02A | 2020/03/01 13:00 | Hidalgo, Gabriel Alejandro v Louroi Martinez | 6-2,6-4 |
| ITF M25 Rio Cuarto | 2020/02/27 23:00 | Hidalgo, Gabriel Alejandro v Arguello, Facundo | 3-6,2-6 |