[1] Finnan was born in the inner-Sydney suburb of Surry Hills, New South Wales.

She played for the New South Wales Under-21 and Open team from 1988-1997 and was invited to attend the Australian Institute of Sport program in 1988.

She was first selected to play for the national team in the 1990 Commonwealth Games and retired from netball in 2000.

[2] In the 1992 Queen's Birthday Honours list, she was awarded the Medal of the Order of Australia.

[3] In 2000, she was awarded the Australian Sports Medal for services to netball development.