At the 2019 Four Continents Championships, Gilles/Poirier placed fourth in the rhythm dance, behind Hubbell/Donohue, Madison Chock / Evan Bates, and Weaver/Poje. They achieved their best results to date on the Tango Romantica pattern. In the free dance, they placed second, passing Weaver/Poje in the free for the second event in a row, while Hubbell/Donohue had a major stationary lift error that dropped them to fourth in the free dance and fourth overall. Gilles/Poirier won the bronze medal overall, their first Four Continents podium since 2014. They finished the season at the 2019 World Championships, where they placed seventh.