 Kọ itẹsiwaju fun paragirafi yii - Martínez ṣe aṣoju Peru ni 2013 South American U-17 Womens Championship ati awọn ẹya meji ti South American U-20 Womens Championship 2014 ati 2015. Ní ipele àgbà, ó kópa nínú ìdíje méjì ti Copa América Femenina 2014 àti 2018. :  ati awọn ere Pan American 2019. 