In 1986, Daly was the first women to gain the FIBA referee qualification. From 1986 to 1997 she refereed 225 games in the Men’s NBL, including three finals.
Internationally, Daly refereed at the William Jones Cup in Taiwan in 1987 and attended the 1994 FIBA Women’s World Championships in Adelaide.
She was a key part of the first New Zealand Basketball Federation Referees’ Commission, which was formed in 1996, and became a referee trainer in 1997.