Estádio: Court 5 Round: 44 Ground: Clay
| ITF - M25 Guayaquil | 2021/08/02 17:00 | Noah Schachter v Cristobal Castro | 7-6,6-3 |
| ITF - M25 Guayaquil | 2021/08/01 19:00 | Nicolas Esteban Rico Arias v Cristobal Castro | 1-6,4-6 |
| ITF - M25 Guayaquil | 2021/08/01 14:00 | Miguel L Sicco v Cristobal Castro | 6-7,2-6 |
| ITF - M25 Portoviejo | 2021/07/28 14:30 | Jose Pereira v Cristobal Castro | 6-2,6-1 |
| ITF - M25 Portoviejo | 2021/07/26 17:45 | Andres Urrea v Cristobal Castro | 4-6,7-5,5-10 |
| ITF - M25 Portoviejo | 2021/07/26 14:30 | Ignacio B Alia v Cristobal Castro | 3-6,4-6 |
| ITF - M15 Villa María | 2021/03/29 12:30 | Nicolas Kicker v Cristobal Castro | 6-2,7-5 |
| ITF - M15 Villa María | 2021/03/28 14:00 | Francisco Aranguren v Cristobal Castro | 2-6,3-6 |
| ITF - Bélgica F9 | 2018/08/19 14:05 | Tristan Meraut v Patricio Embry | 6-0,6-1 |
| ITF - Bélgica F7 - Qualificação | 2018/08/04 07:30 | Patricio Embry v Nicolas Beaufort | 3-6,3-6 |