Mary Mattatall (Halifax, NS) run at the 2016 Dave Jones Mayflower Cashspiel came to an end in the semifinals with a 8-3 loss to Jill Brothers (Halifax, NS). of the 2016 Dave Jones Mayflower Cashspiel in Halifax, Nova Scotia; Mattatall advanced through the quarterfinals with a 5-4 win over Kristen MacDiarmid (Dartmouth, NS). of the 2016 Dave Jones Mayflower Cashspiel in Halifax, Nova Scotia;
 
Mattatall finished 2-2 in the 15-team qualifying round. . In their opening game, Mattatall lost 5-4 to MacDiarmid, then responded with a 6-4 win over Mary-Anne Arsenault (Halifax, NS). Mattatall went on to lose 5-4 against Julie McEvoy (Halifax, NS). Mattatall responded with a 7-6 win over Melissa Adams (Fredericton, NB) in their final qualifying round match.
 
Mattatall earned 14.055 world rankings points for their Top 3 finish in the Dave Jones Mayflower Cashspiel, moving up 13 spots the World Ranking Standings into 68th place overall with 67.661 total points. Mattatall ranks 77th overall on the Year-to-Date rankings with 25.037 points earned so far this season.