Theresa Breen (Halifax, NS) lost 9-5 to Jill Brothers (halifax, NS) in the Final of the Dave Jones Northbridge Mayflower Cashspiel, held November 19 - 22, 2015 in Halifax, Nova Scotia. To advance to the championship game, Breen won 5-4 over Suzanne Birt (Charlottetown, PEI) in the semifinals of the 2015 Dave Jones Northbridge Mayflower Cashspiel in Halifax, Nova Scotia; and won 6-5 over Mary Mattatall (Halifax, NS) in the quarterfinals. of the 2015 Dave Jones Northbridge Mayflower Cashspiel in Halifax, Nova Scotia;
 
Breen finished 3-1 in the 16-team qualifying round. . In their opening game, Breen defeated Kristen MacDiarmid (Dartmouth, NS) 7-5, then won 8-3 against Jocelyn Nix (Kentville, NS) and 8-5 against Shelly Bradley (Charlottetown, PEI). Breen went on to lose 8-3 against Lauren Gray (Glasgow, UK) in their final qualifying round match.
 
With their runner-up finish at the Dave Jones Northbridge Mayflower Cashspiel, Breen take home 17.272 world rankings points along with the $2,000CDN prize, moving up 7 spots the World Ranking Standings into 47th place overall with 77.769 total points. Breen ranks 32nd overall on the Year-to-Date rankings with 66.829 points earned so far this season.