He was originally drafted from Claremont in the WAFL to the West Coast Eagles for the 1993 season, before being delisted without playing a league game. He was then drafted by the North Melbourne Football Club, where again he didn't play a league game and was delisted. He was then selected as a predraft selection in the 1994 AFL Draft by Fremantle and played 20 games over two seasons mainly as a defender.
After retiring from football, Muir became a big-wave surfer and stand up paddle surfing. He won an event at Sapinus in Tahiti,[1] and competed in the Stand Up World tour, finishing each year between 2010 and 2012 in the top twenty, with eighth place in 2010 his best overall result.[2]
