The 2018 AFC Champions League qualifying play-offs were played from 16 to 30 January 2018.[1] A total of 22 teams competed in the qualifying play-offs to decide eight of the 32 places in the group stage of the 2018 AFC Champions League.[2]
Teams
The following 22 teams, split into two regions (West Region and East Region), entered the qualifying play-offs, consisting of three rounds:
In the qualifying play-offs, each tie was played as a single match. Extra time and penalty shoot-out were used to decide the winner if necessary (Regulations Article 9.2). The eight winners of the play-off round advanced to the group stage to join the 24 direct entrants. All losers in each round from associations with only play-off slots entered the AFC Cup group stage.[2]
The bracket of the qualifying play-offs for each region was determined by the AFC based on the association ranking of each team, with the team from the higher-ranked association hosting the match. Teams from the same association could not be placed into the same play-off.[3]