McDonald went on to skip Team Ontario at the 2019 Tim Hortons Brier, leading his rink to a 6–5 record, finishing in sixth place overall.

Due to the COVID-19 pandemic in Canada, many provinces had to cancel their provincial championships, with member associations selecting their representatives for the 2021 Tim Hortons Brier.

[7] Murphy's team of Paul Flemming, Scott Saccary and Phil Crowell then invited McDonald to skip them at the national championship in Calgary, Alberta.

[8] At the 2021 Brier, McDonald led Team Nova Scotia to a 4–4 record, failing to qualify for the championship round.

[9] McDonald won the Ontario Mixed Championship in 2022 with teammates Lori Eddy, Matthew Hall and Laura Neil.