 Messing placed eleventh in the free skate following errors, for an eighth-place finish overall.Beginning the season at the 2018 CS Nebelhorn Trophy, Messing placed first in both segments to win the gold medal, his first international win while representing Canada.Competing on the Grand Prix, Messing placed first in the short program at the 2018 Skate Canada International, following mistakes by presumed frontrunner Shoma Uno.