2018 Challenge Trophy

Ten teams were granted entry into the competition; one from each Canadian province. Teams are selected by their provincial soccer associations; most often qualifying by winning provincial leagues or cup championships such as the Ontario Cup. ==Group stage==

The ten teams in the competition are divided into two groups of five teams each, which then play a single-game round-robin format. At the end of the group stage, each team faces the equal-ranked team from the other group to determine a final seeding for the tournament. ==Final round==

The final round consists of one game for each club, where they are paired with their equal-ranked opponent from the opposite group to determine a final ranking for the tournament. ==References==