Stadium: Court 8 Round: 26 Ground: Clay
| ITF M25 Medellin | 2021/09/14 18:05 | Soares Klier, Gilbert v Enrique Bogo | 6-1,6-2 |
| ITF M25 Poznan | 2021/08/25 10:00 | Harry Wendelken v Soares Klier, Gilbert | 3-6,6-4,6-2 |
| ITF M15 Lodz | 2021/08/21 08:00 | Soares Klier, Gilbert v Maciej Rajski | 4-6,6-7 |
| ITF M15 Lodz | 2021/08/20 10:15 | Daniel Michalski v Soares Klier, Gilbert | 6-4,3-6,3-6 |
| ITF M15 Lodz | 2021/08/19 10:00 | Tommaso Compagnucci v Soares Klier, Gilbert | 4-6,2-6 |
| ITF M15 Lodz | 2021/08/18 11:25 | Aristotelis Thanos v Soares Klier, Gilbert | 2-6,3-6 |
| ITF M15 Gdynia | 2021/08/12 09:25 | Soares Klier, Gilbert v Daniel De Jonge | 5-7,1-6 |
| ITF M15 Gdynia | 2021/08/11 09:40 | Bolardt, Antonin v Soares Klier, Gilbert | 6-2,1-6,2-6 |
| ITF M25 Medellin | 2021/09/14 18:00 | Gomez, Mateo v Santamaria, Felipe | 6-1,6-2 |
| ITF M15 Ibague | 2021/09/09 16:55 | Gomez, Mateo v Lopez Villasenor, Gerardo | 6-0,3-6,1-6 |
| ITF M15 Ibague | 2021/09/07 16:30 | Boris Arias v Gomez, Mateo | 5-7,5-7 |
| ITF M25 Guayaquil | 2021/08/03 17:05 | Ribeiro Marcondes, Igor v Gomez, Mateo | 6-1,6-0 |
| ITF M25 Guayaquil | 2021/08/02 19:30 | Gomez, Mateo v Gonzalez, Javier (Chl) | 5-7,4-6 |
| ITF M25 Guayaquil | 2021/08/02 14:00 | Gomez, Mateo v Alban, Ricardo | 6-3,6-1 |
| ITF M25 Portoviejo | 2021/07/26 20:10 | Gomez, Mateo v Mateo Barreiros Reyes | 6-7,6-7 |
| ITF M25 Portoviejo | 2021/07/26 14:30 | Gomez, Mateo v Juan Sebastian Osorio | 7-5,6-3 |