David Wallum kept the Olympic (11-18) off the board during his six innings of work and the Linn-Benton (19-12) beat the Olympic, 1-0.
Wallum struck out eight and allowed one walk and four hits.
Ryan Gelwicks allowed no earned runs, four hits and two walks while striking out four over 5 2/3 innings of work.
Gelwicks ended up on the wrong side of the pitching decision, charged with his first loss of the year.