Subsequently, Muliaina played for the NZ Secondary Schools XV, the team winning that year's world championship.

Muliaina has also played in 11 tournaments for the sevens team, including winning a Commonwealth Games gold medal in 2002 in Manchester.

[citation needed] On 9 October 2011 during the 2011 Rugby World Cup, Muliaina played his 100th game for the All Blacks after starting at fullback against Argentina.

In July 2015, Muliaina was charged with sexual assault following an incident with a woman in a Cardiff night club.

[5] It was announced in March 2016 that Muliaina would play the upcoming season in the United States in the newly formed PRO Rugby competition.