Allan joined the GIANTS from Adelaide in exchange for pick 46 during the 2019 AFLW Trade window. Allan played four games for Adelaide in 2018 after joining the Crows with pick eight in the 2017 draft but due to commitments with the Australian Army, the 185cm ruck was unable to play in 2019. Based in Canberra, Allan is now in a position to pursue her football aspirations with the GIANTS and has cemented herself in the GIANTS' side.