Once at senior age, Marcon joined the Northern Bullants in the Victorian Football League, the club where his father Adrian had been a popular dual-premiership player in the 1980s.
[1] Marcon played three seasons for the Northern Bullants (or Blues, as they became known from 2012) from 2011 until 2013, and won the Laurie Hill Trophy as club best-and-fairest in 2012.
[4] He made his AFL debut in Round 19, 2016 against Greater Western Sydney at Manuka Oval, and played one further game for the club before the end of the 2016.
He won the Guinane Medal as the club's VFL best and fairest, but was de-listed at the end of the season.
[3][5] Following his AFL de-listing from Richmond Marcon returned to play VFL football at Williamstown.