The USAFL National Championships is a tournament for Australian rules football in the United States.
The 2017 edition saw the largest turnout in the history of the carnival; 53 teams representing 42 clubs across North America took part, including a record 13 women's teams representing 27 USAFL and AFL Canada clubs.
The New York Magpies, San Diego Lions and Boston Demons are the only other multiple Men's D1 winners, each having won twice.
The Lady Kookas took home the first three premierships until 2008, when their 19-game winning streak came to an end at the hands of the Calgary Kookaburras.
Their string of premierships ended at the hands of the San Francisco Iron Maidens, who have since gone on to claim seven-in-a-row of their own from 2016 to 2023.
For the 2021 tournament this was changed to four, ten-minute quarters to allow for restrictions surrounding water runners as a result of the COVID-19 pandemic.
All Divisions are subject to the "50-50 Rule", which requires at least half of the players on the field at any one time to be "nationals" of the country that their team represents.
At the league's 2014 annual general meeting, USAFL president Denis Ryan stated that he wanted to have the three regions, East, Central, and West, alternate hosting duties.
[1] The 2020 Nationals tournament, originally scheduled for Ontario, California the weekend of October 10–11, was cancelled due to the COVID-19 pandemic.