Monica Walker/Alex Leichter (Wayland, MA) qualified for the 2021 USA Curling Mixed Doubles National Championship playoffs, dropping their quarterfinals match 7-4 against Aileen Geving/Luc Violette (Duluth, MN). of the 2021 USA Curling Mixed Doubles National Championship in Wausau, Wisconsin, United States;
 
Walker/Leichter finished 3-2 in the 0-team qualifying round. . In their opening game, Walker/Leichter defeated Harley Rohrbacher/Nicholas Visnich (Pittsburgh, PA) 9-2, then won 9-3 against Ann Podoll/Nathan Parry (Fargo, ND). Walker/Leichter went on to lose 8-4 against Clare Moores/Lance Wheeler (Denver, CO). Walker/Leichter responded with a 7-4 win over Sydney Mullaney/Chase Sinnett (Concord, MA). Walker/Leichter went on to lose 9-1 against Kim Rhyme/Jason Smith (St. Paul, MN) in their final qualifying round match.
 
Walker/Leichter ranks th overall on the Year-to-Date rankings with points earned so far this season.