Stadium: Cancha 1 Round: 25
| ITF M25 Guayaquil | 2021/08/02 18:30 | Eduardo Lacalle v Juan Diego Rojas Mora | 6-3,6-3 |
| ITF M25 Guayaquil | 2021/08/02 14:00 | Ignacio B Alia v Juan Diego Rojas Mora | 6-3,1-6,9-11 |
| ITF M25 Guayaquil | 2021/08/01 14:00 | Juan Diego Rojas Mora v Pol Sanchez Vinas | 7-5,2-6,10-7 |
| ITF M15 Cairo | 2021/08/30 12:30 | Gonzalo Achondo v Lorenzo Gagliardo | 4-6,0-6 |
| ITF M15 Bad Waltersdorf | 2021/08/23 07:00 | Gonzalo Achondo v Philip Bachmaier | 0-6,3-6 |
| ITF M15 Warmbad-Villach | 2021/08/16 12:30 | Philip Bachmaier v Gonzalo Achondo | 6-1,6-3 |
| ITF M15 Warmbad-Villach | 2021/08/16 07:00 | Ivan Kazakov v Gonzalo Achondo | 6-3,0-6,8-10 |
| ITF M15 Xativa | 2021/08/02 07:00 | Francisco Andreu Garcia v Gonzalo Achondo | 6-3,6-1 |
| ITF USA F40 Qual | 2017/12/03 18:00 | Gonzalo Achondo v Mason Beiler | 3-6,0-6 |
| ITF USA F40 Qual | 2017/12/02 16:00 | Jack Vance v Gonzalo Achondo | 3-6,6-4,4-6 |
| ITF USA F39 Qual | 2016/11/26 18:00 | Noe Khlif v Gonzalo Achondo | 6-3,6-3 |