He plays predominantly as a fullback for the Kookaburras, the Australian men's national hockey team.

[3] In 2014, Deavin was barred from playing with his team, Tamar Churinga, in Tasmania's Greater Northern Hockey League due to complaints about his professional performance.

He then moved to Hobart where he occasionally plays for the Derwent Strikers in the Southern Men's Hockey League.

In 2013, Deavin competed for the Kuala Lumpur Hockey Club in the Malaysian National League, leading the team to a championship victory.

[8] In December 2011, he was named as one of twenty-eight players to be on the 2012 Summer Olympics Australian men's national training squad.