Sean Grassie (Winnipeg, MB) qualified for the 2020 Atkins Curling Supplies Classic playoffs, dropping their quarterfinals match 7-4 against Ryan Wiebe (Winnipeg, MB). of the 2020 Atkins Curling Supplies Classic in Winnipeg, Manitoba, Canada;
 
Grassie finished 3-1 in the 20-team qualifying round. . In their opening game, Grassie defeated Jordan Smith (Winnipeg, MB) 8-2, then won 7-2 against JT Ryan (Winnipeg, MB) and 9-8 against Tanner Lott (Selkirk, MB). Grassie went on to lose 5-1 against Braden Calvert (Winnipeg, MB) in their final qualifying round match.
 
. For week 10 of the event schedule, Grassie did not improve upon their best events, remaining at 45th place on the World Ranking Standings with 99.641 total points. Grassie ranks 189th overall on the Year-to-Date rankings with 0.000 points earned so far this season.