She played in the Women's National Basketball Association (WNBA) from 1998 to 2005 for the Phoenix Mercury and Minnesota Lynx.

[15] She was a member of the 1998 Australian Senior Women's Team that won a bronze medal at the World Championships in Germany.

[26] In 2002, she was a member of the Australian Senior Women's Team that won a silver medal in the World Championships in Spain.

[29][30] In 2006, she was a member of the Australian women's senior team that won a gold medal at the World Championships in Brazil.

[32] In 2008, she did not participate in the Good Luck Beijing 2008 held in China in the lead up to the Olympics because of a commitment to her European club.

[18][34][35][36] In June 2010, Harrower was viewed by national team coach Carrie Graf as one of a quartet of strong players that would represent Australia in a tour of China, the United States and Europe in the next few months.

[37] In July 2010, she participated in a four-day training camp and one game test match against the United States in Connecticut.

[38] In 2010, she was a member of the senior women's national team that competed at the World Championships in the Czech Republic.

[1] She was scheduled to participate in the national team training camp held from 14 to 18 May 2012 at the Australian Institute of Sport.

[43][44] In December 2018, Harrower joined the Diamond Valley Eagles women's team as an assistant coach for the inaugural season of the NBL1 in 2019.

[45] In May 2019, Harrower left the Eagles to take up the position of head coach of the Melbourne Tigers women's team for the final 10 games of the NBL1 season.

[53] In July 2022, Harrower was appointed an assistant coach of the Melbourne Boomers ahead of the 2022–23 WNBL season.

[54] In June 2024, Harrower was appointed head coach of the Southside Flyers ahead of the 2024–25 WNBL season.

[55] Harrower served as an assistant coach of the Australian Opals at the 2023 FIBA Asia Cup.