[1] She made her debut in the thirty-six point win against Greater Western Sydney at Thebarton Oval in the opening round of the 2017 season.

[7] She was a part of Adelaide's premiership side after the club defeated Brisbane by six points at Metricon Stadium in the AFL Women's Grand Final.

[12] After floating around the ground in 2017, Allan began to settle in her position as a key defender in 2018, regularly tagging opposition teams' best tall forward in matches, and she received a nomination for the 2018 AFL Women's Rising Star award after recording eleven disposals and four rebound 50s in Adelaide's round 6 win against Fremantle.

[18] In the 2021 AFL Women's season, Allan was awarded with her second All-Australian blazer, again named on the full back position.

[19][20] Allan is a versatile key-position player capable of playing in the forward line, in defence or in the ruck.