Amy Ridge made her national team debut at the 2017 FINA World League Intercontinental tournament, where Australia defeated the USA to win gold. Since then, Ridge has been a key member of the Aussie Stingers squad.
In 2018, Ridge and her Stingers teammates won bronze at the FINA World Cup. In the same year, Ridge was ranked the second-highest goalscorer in the OVO Australian Water Polo League with 50 goals from 22 matches.
Ridge added another bronze medal to the tally after the Stingers took down Hungary at the 2019 FINA World Aquatics Championships.