Tabitha Peterson/Joe Polo (Bemidji, MN) lost 8-4 to Vicky Persinger/Christopher Plys (Fairbanks, AK) in the Final of the Twin Ports Mixed Doubles Classic, held November 23 - 25, 2018 at the Duluth Curling Club in Duluth, United States. To advance to the championship game, Peterson/Polo won 7-3 over Nina Roth/Kroy Nernberger (Madison, WI) in the semifinals of the 2018 Twin Ports Mixed Doubles Classic in Duluth, Minnesota, United States; and won 6-3 over Lexi Lanigan/Jonathan Harstad (Chaska, MN) in the quarterfinals. of the 2018 Twin Ports Mixed Doubles Classic in Duluth, Minnesota, United States;
 
Peterson/Polo finished 4-0 in the 30-team qualifying round. . In their opening game, Peterson/Polo defeated Lanigan/Harstad 9-4, then won 9-2 against Christine McMakin/Riley Fenson (Bemidji, MN) and 9-3 against Maggie Payette/Jack Payette (Duluth, MN). Peterson/Polo won 7-6 against Roth/Nernberger in their final qualifying round match.
 
. For week 15 of the event schedule, Peterson/Polo did not improve upon their best events, remaining at th place on the World Ranking Standings with total points. Peterson/Polo ranks th overall on the Year-to-Date rankings with points earned so far this season.