[2] Details of the inaugural edition of the CONCACAF League was confirmed on 8 May 2017.

[1] Olimpia defeated Santos de Guápiles in the final, and qualified for the 2018 CONCACAF Champions League.

All of the leagues of Central America employ a split season with two tournaments in one season, so the following teams qualify for the CONCACAF League: If teams from any Central American associations are excluded, they are replaced by teams from other Central American associations, with the associations chosen based on results from previous CONCACAF Champions League tournaments.

[1] The three berths for the Caribbean Football Union (CFU) are allocated via the Caribbean Club Championship, a subcontinental tournament open to the clubs of all 31 CFU member associations.

To qualify for the Caribbean Club Championship, teams have to finish as the champions or runners-up of their respective association's league in the previous season, but professional teams may also be selected by their associations if they play in the league of another country.

The runners-up, third-placed and fourth-placed teams of the Caribbean Club Championship qualify for the CONCACAF League.

The draw for the 2017 CONCACAF League was held on 31 May 2017, 19:00 EDT (UTC−4), at the Hilton Miami Airport Hotel in Miami, Florida, United States,[13] and was streamed on YouTube.

If the aggregate score was tied after the second leg, the away goals rule would be applied, and if still tied, the penalty shoot-out would be used to determine the winner (Regulations, II.

In the semi-finals, the matchups were determined as follows: The semi-finalists in each tie which had the better performance in previous rounds hosted the second leg.

Winner SF2), the finalists which had the better performance in previous rounds hosted the second leg.