[3] Ponter began playing for St Mary's at 11 in the under-16 female division of Northern Territory Football League (NTFL), in the 2011–12 season.

Ponter competed at the 2014 AFL Women's Under 18 Championships for the Thunder Devils (a combined Northern Territory–Tasmania team) at 14.

She was not selected for the opening round of the 2019 season; coach Matthew Clarke acknowledged she was "pretty stiff to miss out".

[9] Ponter made her debut the next round, playing as a defender in contrast to her usual position of forward in her junior career.

[7] She returned to the forward line in round 4 and received a nomination for the 2019 AFL Women's Rising Star award after kicking two goals.