Colville 3, Riverside 0: Jessie Sarber found the net twice and the No. 3 seed Indians (10-6-0) eliminated the visiting sixth-seeded Rams (3-12-1) in the first round of the District 7 1A tournament on Tuesday.
Andrew Sanchez made eight saves for the clean sheet.
Colville faces second-seeded Medical Lake (7-5-0) in a semifinal on Thursday.
Newport 4, Deer Park 1: David Rodriguez scored a pair of second-half goals and the fourth-seeded Grizzlies (7-7-0) beat the visiting No. 5 seed Stags (4-10-0).
Newport faces Northeast A League champion Lakeside (14-1-1, 12-0-0-0) in a semifinal on Thursday.