Wahkiakum stormed back and pulled to within three points late in the game. But in the end it was Adna's ability to make free throws down the stretch that made all the difference.
Wahkiakum simply ran out of time and had to start fouling at the end of the 1B quarterfinal game at Spokane Arena Thursday night.
Bubba Lara scored a double-double for the Pirates.
Adna will play the winner between Northwest Christian and Lake Roosevelt on Friday.