Peter has played for Sydney Olympic in the New South Wales Premier League since 2008 winning the Premiership and minor Premiership with the club in 2012 while also being named as the Robbie Slater Medalist as the Man of the Match in the Grand Final. Triantis made his debut for the Sky Blues in December, 2012 but was side-lined through injury during the 2012/13 season and will make his return this year.