Mary Mattatall (Halifax, NS) qualified for the 2015 Dave Jones Northbridge Mayflower Cashspiel playoffs, dropping their quarterfinals match 6-5 against Theresa Breen (Halifax, NS). of the 2015 Dave Jones Northbridge Mayflower Cashspiel in Halifax, Nova Scotia;
 
Mattatall finished 3-1 in the 16-team qualifying round. . In their opening game, Mattatall defeated Mary-Anne Arsenault (Halifax, NS) 5-3, then won 7-4 against Kim Dolan (Charlottetown, PEI) and 9-2 against Melissa Adams (Fredericton, NB). Mattatall went on to lose 7-6 against Jill Brothers (halifax, NS) in their final qualifying round match.
 
Mattatall earned 9.421 world rankings points for their Top 5 finish in the Dave Jones Northbridge Mayflower Cashspiel, moving up 6 spots the World Ranking Standings into 75th place overall with 45.056 total points. Mattatall ranks 56th overall on the Year-to-Date rankings with 42.099 points earned so far this season.