Stadion: Cancha 3 Round: 19 Ground: Hardcourt outdoor
| Challenger - Salinas | 2021/04/18 17:55 | Facundo Diaz Acosta v Juan Diego Rojas | 6-1,6-0 |
| ATP - Buenos Aires | 2021/03/02 16:30 | Facundo Diaz Acosta v Jaume Munar | 6-7,3-6 |
| ATP - Cordoba | 2021/02/21 14:00 | Facundo Diaz Acosta v Camilo Ugo Carabelli | 6-4,3-6,2-6 |
| ATP - Cordoba | 2021/02/20 13:00 | Sumit Nagal v Facundo Diaz Acosta | 4-6,6-2,3-6 |
| Challenger - Concepción | 2021/02/15 14:00 | Hernan Casanova v Facundo Diaz Acosta | 7-5,6-0 |
| Challenger - Concepción | 2021/02/14 18:00 | Michel Vernier v Facundo Diaz Acosta | 6-3,3-6,3-6 |
| ITF - M15 - Sharm El Sheikh | 2021/02/06 07:30 | Facundo Diaz Acosta v Arnaud Bovy | 6-4,4-6,6-7 |
| ITF - M15 - Sharm El Sheikh | 2021/02/05 10:05 | Facundo Diaz Acosta v Peter Fajta | 6-7,6-2,6-1 |
| Challenger - Salinas | 2021/04/18 16:55 | Gage Brymer v Yusuke Takahashi | 4-6,4-6 |
| ITF - M15 - Sharm El Sheikh | 2021/03/17 09:05 | Lucas Miedler v Yusuke Takahashi | 6-4,6-2 |
| ITF - M15 - Sharm El Sheikh | 2021/03/10 07:30 | Yusuke Takahashi v Aldin Setkic | 3-6,2-6 |
| ITF - M15 - Sharm El Sheikh | 2021/03/04 09:05 | Nick Hardt v Yusuke Takahashi | 6-3,6-2 |
| ITF - M15 - Sharm El Sheikh | 2021/03/03 14:10 | Hanwen Li v Yusuke Takahashi | 6-4,2-6,6-7 |
| ITF - M15 - Sharm El Sheikh | 2021/02/25 09:00 | Yusuke Takahashi v Jakub Paul | 3-6,2-6 |
| ITF - M15 - Sharm El Sheikh | 2021/02/24 15:30 | Yusuke Takahashi v Manish Sureshkumar | 6-1,2-6,7-5 |
| ITF - M15 - Sharm El Sheikh | 2021/02/19 07:30 | Yusuke Takahashi v Yu Hsiou Hsu | 3-6,4-6 |