Despite his small stature, Macaffer led the TAC Cup U/18 goalkicking in 2006, and was named at full forward in the Team of the Year.
[2] Macaffer switched his guernsey to number three at the end of the 2012 season as tribute to his late friend and former team mate John McCarthy who died during the 2012 offseason.
In the 2013 AFL season Macaffer was utilised as more of a tagger/inside mid, a notable performance was keeping St Kilda star Nick Dal Santo to 16 disposals at 44% efficiency in Round 6.
Macaffer had won 14/16 of his roles which included some of the best Midfielders in the game with the likes of Nick Dal Santo, David Mundy, Joel Selwood, Josh P. Kennedy, Pearce Hanley, Dyson Heppell, Kieren Jack, Andrew Gaff, Daniel Wells, Travis Boak, plus others.
On 22 August 2016, he announced he would retire at the end of the season, along with 2010 premiership team-mate Alan Toovey.