The qualification structure is the same as the previous five tournaments. The ten teams will play in a league of home-and-away round-robin matches. The top four teams will qualify for the 2018 FIFA World Cup, and the fifth-placed team will advance to the inter-confederation play-offs. Unlike previous qualifying tournaments where the fixtures were pre-determined, the fixtures were determined by draw, which was held as part of the 2018 FIFA World Cup Preliminary Draw on 25 July 2015, starting 18:00 MSK (UTC+3), at the Konstantinovsky Palace in Strelna, Saint Petersburg, Russia.