The Pioneers clinched their spot quickly, pulling to a 20-12 lead in the first quarter and holding off the Trojans in the second to grab a 29-19 win.
Mariah Perry led Nooksack in the first game with 12 points and Meridian was led by Natalie Swanson, who had six.
The back-and-forth, trading buckets style of play continued in the second game of the evening, as Mount Baker and Meridian combined for 64 points in just two quarters of play.
Meridian was on the wrong side again though, falling to Baker 37-27, eliminating the Trojans from the playoffs.
Emily Yost led the Mountaineers with 14 points and Kyrin Baklund had 10 for Meridian.
Nooksack and Mount Baker played for seeding in the final game of the day, with the Pioneers prevailing 30-26. Nooksack’s Katrina Gimmaka had a team-high nine points and Yost had 10 points in the seeding game.
With the win, the Pioneers snag a home game for the first round of the district playoffs, which will be against Sultan on Monday, Feb. 9. Mount Baker, though, has to play on the road against Cedar Park Christian on Monday in Bothell.