Nanalo si Perez ng dalawang medalya sa Palaro ng Timog Silangang Asya 2003, at tatlong gintong medalya sa Palaro ng Timog Silangang Asya 2005, sa mga kaganapang 3-metrong tablang paikgasan, sabayang 3-metrong tablang paikgasan, 1-metrong tablang paikgasan, na naging kauna-unahang tatluhang-gintong medalista mula sa Pilipinas sa Palaro.
Perez won two medals at the 2003 Southeast Asian Games, and three gold medals at the 2005 Southeast Asian Games, in the 3-metre springboard, synchronised 3-metre springboard and 1-metre springboard events, becoming the first ever triple-gold medallist from the Philippines at the Games.WikiMatrix WikiMatrix