Chatfield is a former Australian netball player, playing as a GK and GD. In 2001, she was selected for the Australian team as an 18-year-old, one of the youngest ever netballers to play for her country. She is a Commonwealth Games Gold and Silver Medalist, World Champion and played over 240 games for the Melbourne Phoenix and Melbourne Vixens, captaining the latter for several years and winning six premierships - four with the Phoenix and two with the Vixens. Chatfield ended her playing career after the conclusion of the 2015 ANZ Championship season.