Gushue once again represented Canada at the 2018 World Men's Curling Championship. They finished the round robin with a 9–3 record. In the playoffs, they knocked off the United States and Scotland to make it to the final, where they faced Sweden's Edin rink in a rematch of the 2017 final. This time, Edin got the better of Gushue, defeating Canada 7–3.