Mackenzie Zacharias (Winnipeg, MB) lost 9-2 to Serena Gray-Withers (Stonewall, MB) in the Final of the MJCT Tour Championships, held November 29 - December 1, 2019 at the Assiniboine Memorial Curling Club in Winnipeg, Canada. To advance to the championship game, Zacharias won 8-2 over Hayley Bergman (Rosenfeld, MB) in the semifinals
 
Zacharias finished 4-0 in the 0-team qualifying round. . In their opening game, Zacharias defeated Manitoba's Katy Lukowich 10-0, then won 10-2 against Talyia Tober (Winnipeg, MB) and 8-4 against Gray-Withers. Zacharias won 5-2 against Grace Beaudry (Winnipeg, MB) in their final qualifying round match.
 
. For week 19 of the event schedule, Zacharias did not improve upon their best events, remaining at th place on the World Ranking Standings with total points. Zacharias ranks th overall on the Year-to-Date rankings with points earned so far this season.