Stadium: Cancha Central Round: 27 Ground: Clay
| ITF M15 Villa Carlos Paz | 2022/10/07 15:50 | Mariano Kestelboim v Alex Barrena | 6-2,2-6,4-6 |
| ITF M25 Hurlingham | 2020/03/04 16:05 | Alex Barrena v Mariano Kestelboim | 4-6,3-6 |
| ITF M15 Santiago | 2024/12/06 14:00 | Alex Barrena v Santiago De La Fuente | 6-3,4-6,5-7 |
| ITF M15 Santiago | 2024/12/05 16:00 | Alex Barrena v Lautaro Agustin Falabella | 6-2,6-3 |
| ITF M15 Santiago | 2024/12/03 15:00 | Alex Barrena v Bruno Fernandez | 6-3,6-3 |
| ITF M15 Santiago | 2024/11/30 15:40 | Christopher Li v Alex Barrena | 6-3,2-6,0-6 |
| ITF M15 Santiago | 2024/11/29 14:00 | Juan Estevez v Alex Barrena | 6-7,4-6 |
| ITF M15 Santiago | 2024/11/28 14:00 | Nicolas Villalon v Alex Barrena | 4-6,3-6 |
| ITF M15 Santiago | 2024/11/27 14:50 | Joao Victor C Loureiro v Alex Barrena | 2-6,2-6 |
| ITF M15 Santiago | 2024/11/26 21:15 | Diego Ortiz Gamonal v Alex Barrena | 1-6,1-6 |
| Challenger Temuco | 2024/11/26 13:00 | Mariano Kestelboim v Nicolas Kicker | 6-4,4-6,2-6 |
| Challenger Temuco | 2024/11/25 16:10 | Mariano Kestelboim v Wilson Leite | 7-5,7-5 |
| Challenger Temuco | 2024/11/24 18:10 | Mariano Kestelboim v Hernando J E Isnardi | 6-3,6-1 |
| Challenger Montevideo | 2024/11/11 19:55 | Mateus Alves v Mariano Kestelboim | 7-5,7-5 |
| Challenger Montevideo | 2024/11/10 17:05 | Francisco Llanes v Mariano Kestelboim | 4-6,7-6,3-6 |
| Challenger Lima | 2024/11/03 15:30 | Mariano Kestelboim v Luciano Emanuel Ambrogi | 1-6,1-6 |
| Challenger Guayaquil | 2024/10/30 17:10 | Mariano Kestelboim v Federico Coria | 5-7,2-6 |
| Challenger Guayaquil | 2024/10/29 15:00 | Franco Roncadelli v Mariano Kestelboim | 0-6,2-6 |