The complex at Oregon State University plays host to the five classifications with finals, June 1 and 2.
Softball is one of two sports that finish their seasons at Oregon State, with the other being Class Class 4A basketball at Gill Coliseum.
Teams will likely be playing to become a third seed in a playoff bracket this spring. Last year, a third seed was involved in four of the five championship games, with two of the teams winning: Century at Class 6A and West Albany at 5A.
Cascade, Glide and Regis won the Class 3A, 2A and 1A titles respectively with Glide and Regis as the only top seeds to win a title.