Stefania Constantini (Trentino, ITA) qualified for the 2021 World Mixed Doubles Curling Championship playoffs, dropping their quarterfinals match 7-5 against Kristin Moen Skaslien (Oppdal, NOR). of the 2021 World Mixed Doubles Curling Championship in Aberdeen, Scotland;
 
Constantini finished 7-2 in the 0-team qualifying round. . In their opening game, Constantini lost 7-4 to Jennifer Dodds (Stirling, SCO), then responded with a 7-2 win over Oihane Otaegi (San-Sebastian, ESP). Constantini won 7-6 against Tahli Gill (Brisbane, AUS), then won 9-6 against Pia-Lisa Scholl (Oberstdorf, GER) and 6-5 against Dorottya Palancsa (Budapest, HUN). Constantini went on to lose 6-4 against Kerri Einarson (Gimli, CAN). Constantini responded with a 5-4 win over Zuzana Paulova (Prague, CZE). Constantini won 8-5 against Anastasia Moskaleva (Moscow, RCF), then won 8-6 against Korea's Ji-Yun Kim in their final qualifying round match.
 
Constantini ranks th overall on the Year-to-Date rankings with points earned so far this season.