New Brunswick's Marlene Vaughan run at the 2020 New Brunswick Masters Curling Championships came to an end in the semifinals with a 13-4 loss to New Brunswick's Heidi Hanlon. of the 2020 New Brunswick Masters Curling Championships in Moncton, New Brunswick, Canada;
 
New Brunswick's Marlene Vaughan finished 3-3 in the 7-team qualifying round. . In their opening game, New Brunswick's Marlene Vaughan defeated New Brunswick's Isabel Yeamans 12-2, then went on to lose 12-4 against New Brunswick's Kathy Hicks. New Brunswick's Marlene Vaughan lost 13-4 to New Brunswick's Heidi Hanlon where New Brunswick's Marlene Vaughan responded with a 7-4 win over New Brunswick's Gail Samaan. New Brunswick's Marlene Vaughan won 7-4 against New Brunswick's Berthe Richard. New Brunswick's Marlene Vaughan went on to lose 10-8 against New Brunswick's Nancy Steele in their final qualifying round match.
 
New Brunswick's Marlene Vaughan ranks th overall on the Year-to-Date rankings with points earned so far this season.