Facing Alberta in the semifinal, Team Northern Ontario gave up key steals in the fifth and sixth ends, ultimately losing the game 7–3 and taking home the bronze medal.

Heading into the 2019–20 season, Guy rejoined the Burns rink with Megan Smith at third and Amanda Gates at lead to compete in the 2020 Northern Ontario Scotties Tournament of Hearts.

It was a tight final with singles being traded back and forth most of the game before McCarville scored two points in the ninth end to lead 6–4.

As the reigning provincial champions, Team McCarville was given the invitation to represent Northern Ontario at the 2021 Scotties Tournament of Hearts, but they declined due to work and family commitments.

[9] At the Hearts, they finished with a 2–6 round robin record, defeating Northwest Territories' Kerry Galusha and Yukon's Laura Eby.