Stadium: Cancha 2 Round: 26 Ground: Clay
| Challenger Piracicaba | 2024/01/30 13:00 | Gonzalo Villanueva v Mariano Kestelboim | 6-2,7-5 |
| ITF M25 Punta del Este | 2020/02/19 16:25 | Mariano Kestelboim v Gonzalo Villanueva | 1-6,7-6,2-6 |
| ITF Peru F3 | 2018/10/12 16:00 | Gonzalo Villanueva v Mariano Kestelboim | 5-7,7-6,3-6 |
| ITF Argentina F9 | 2017/11/15 16:40 | Mariano Kestelboim v Gonzalo Villanueva | 6-3,2-6,7-6 |
| ITF Argentina F5 | 2016/05/03 18:00 | Gonzalo Villanueva v Mariano Kestelboim | 4-6,4-6 |
| ITF Argentina F3 | 2015/03/24 14:50 | Mariano Kestelboim v Gonzalo Villanueva | 6-4,0-6,3-6 |