The event was held from June 3 to 6, 2021 at the Empower Field at Mile High in Denver, Colorado, United States,[1] and was contested by the four group winners of Nations League A.

The event consisted of two semi-finals, a third place play-off, and final to determine the inaugural champions of the CONCACAF Nations League.

The United States defeated Mexico 3–2 after extra time in the final to become the first champions of the CONCACAF Nations League.

The semi-final pairings were determined by the group stage rankings (1 vs. 4 and 2 vs. 3),[3] and the administrative home teams for the third place play-off and final were announced on March 9, 2020.

[1] Each national team had to submit an initial squad of forty players, five of whom had to be goalkeepers, at least 24 days before the opening match of the tournament.

In the semi-finals and third place game, extra time was not played if tied after regulation, and the match was decided by a penalty shoot-out.