It is contested between four women's national teams — Australia, Canada, New Zealand, and the United States.

Australia, Canada, New Zealand and the United States were announced as the competing teams for the tournament.

However, World Rugby decided to proceed with the soft launch with only Canada and the United States.

[4][5] New Zealand won the 2022 Pacific Four Series after defeating the United States 50–6 in the final match.

[8][9] In 2024, Canada won their first-ever test against the Black Ferns and claimed their second title.