[2] Playing for Eastern Ranges in the TAC Cup from 2011 to 2013, Boyd was the competition's leading goal kicker in 2012 and later performed well for Vic Metro at the 2012 national carnival.

[2][3] In April 2013, Boyd visited Copenhagen in his mother's native Denmark for three days as part of the AIS-AFL Academy tour.

[6] He went on to make his senior debut on 20 April 2014 in the Giants' 137–72 loss to the Adelaide Crows; he managed just five disposals and didn't score.

[11] On 22 June 2015, he earned the AFL's Rising Star nomination for Round 12 after kicking four goals and recording eight marks in a win over the Brisbane Lions.

[12] Following a poor showing in the Bulldogs' Round 16 game against Geelong,[13] Boyd was dropped from the senior squad and failed to be recalled to the AFL level for the rest of the season, playing out the year with the team's VFL side.

He was in line to receive a recall to the AFL side for Round 15, but a drunken, "violent" altercation with teammate Zaine Cordy set him back.

[22] On 16 May 2019, having not played at the top level since round 18 in 2018 amid battles with injury and mental health,[23] Boyd announced his immediate retirement from the AFL.