Krista McCarville (Thunder Bay, ON) needed a tiebreaker to advance to the playoffs, failed to advance to the playoff round, losing in the tiebreaker round, McCarville finished 6-7 in the 0 team TBayTel Major League of Curling qualifying round, held October 11 - January 27, 2018 in , . In their opening game, McCarville defeated Larissa Mikkelsen (Thunder Bay, ON) 13-1, then went on to lose 8-2 against Mike McCarville (Thunder Bay, ON). McCarville lost 5-4 to Mike Pozihun (Thunder Bay, ON). McCarville lost 7-5 to Hailey Beaudry (Thunder Bay, ON). McCarville lost 6-2 to Gary Weiss (Thunder Bay, ON) where McCarville responded with a 9-2 win over Allen Macsemchuk (Thunder Bay, ON). McCarville won 6-2 against Colin Koivula (Thunder Bay, ON). McCarville went on to lose 10-2 against Ben Mikkelsen (Thunder Bay, ON). McCarville lost 7-1 to Al Hackner (Thunder Bay, ON). McCarville lost 7-6 to Koivula where McCarville responded with a 6-5 win over Macsemchuk. McCarville won 5-4 against Beaudry, then won 7-0 against Mikkelsen in their final qualifying round match.
 
. For week 25 of the event schedule, McCarville did not improve upon their best events, remaining at 26th place on the World Ranking Standings with 279.357 total points. McCarville ranks 24th overall on the Year-to-Date rankings with 121.017 points earned so far this season.