Merritt made her debut with the Australia women's national wheelchair basketball team, known as the Gliders, in 2009.

[2][3] She moved to Perth in Western Australia when she was ten after her parents decided they wanted to see what else the world had to offer, and graduated from high school there in 2010.

[2] She was originally a swimmer, but was recruited into basketball by the Paralympic Hall of Fame coach Frank Ponta.

[6][7] In financial year 2012/13, the Australian Sports Commission gave Merritt a A$20,000 grant as part of their Direct Athlete Support (DAS) program.

The Western Stars played in the league's third place match, where she led it in scoring with 34 points as they defeated Sydney 63–54.

[2][17] She competed in the 2011 Asia Oceania Regional Championships, scoring ten points for her team as the third leading scorer in the final game of a competition where her did not lose a single match.

[18][19] That year, she also represented Australia at the 2011 Under 25 World Championships,[2][20] where she wore shirt number 7 and was a key blocker for her team.

[26] In the group stage, the Australia women's national wheelchair basketball team at the 2012 Summer Paralympics posted wins against Brazil,[27] Great Britain,[28] and the Netherlands,[29] but lost to the Canada.

[33] Since the London games, Merritt has participated in the 2013 Osaka Cup,[34] where the Gliders successfully defended the title they had won in 2008, 2009, 2010 and 2012.