Christine McMakin/Riley Fenson (Bemidji, MN) run at the 2021 Curve US Open of Curling Mixed Doubles came to an end in the semifinals with a 6-3 loss to Monica Walker/Alex Leichter (Boston, MA). of the 2021 Curve US Open of Curling Mixed Doubles in Blaine, Minnesota, United States; McMakin/Fenson advanced through the quarterfinals with a 7-5 win over Tara Peterson/Kroy Nernberger (Chaska, MN). of the 2021 Curve US Open of Curling Mixed Doubles in Blaine, Minnesota, United States;
 
McMakin/Fenson finished 3-1 in the 14-team qualifying round. . In their opening game, McMakin/Fenson defeated Susana Cole/Tijani Cole (Accra, NGR) 8-2, then won 9-4 against Aileen Geving/Luc Violette (Duluth, MN). McMakin/Fenson went on to lose 7-3 against Jamie Sinclair/Rich Ruohonen (Chaska, MN). McMakin/Fenson responded with a 7-3 win over Ann Podoll/Nathan Parry (Fargo, ND) in their final qualifying round match.
 
McMakin/Fenson ranks 282nd overall on the Year-to-Date rankings with 0.000 points earned so far this season.