 Boaz's international debut was against Turkmenistan in 30 March 2004 for the 2006 World Cup qualification where Indonesia won 3–1 and Boaz made two assists for his teammate Ilham Jaya Kesuma.Boaz was considered to be a bright prospect in Indonesian football after performing brilliantly in the 2004 Tiger Cup, where Indonesia was defeated by Singapore in a home and away match, which resulted in an aggregate score of 5–2 to Singapore.In the group phase, Boaz managed to score 4 goals and along with Ilham Jayakesuma, who scored 7 goals, both led the top scorers chart.