Sam Landerholm scored 18 and Michael Potter added 14 as the Spudders rolled to an easy road win.
Ridgefield led 34-17 at the half, then held Ilwaco to five points in the third quarter.
A.J. Olson added eight points for the Spudders.
RIDGEFIELD 65, ILWACO 33
RIDGEFIELD — Michael Potter 14, Sam Landerholm 18, Brady Williams 3, Max Ballantyne 5, Marques Segundo 4, Kelly Hope , Austin Quigley , David Potter 7, AJ Olson 8, Kyle Morris 4, Josh Mason 2. Totals 25 (2) 13-24 65.
ILWACO — Tyler Milligan , Ross Kukula 6, Cody Wright, Ryan Tapio 14, Eric McMillan 2, Corey Dunn, Kasey Plato 5, Clark Wilson 6, Taylor Shisler, Kenny Sheldon. Totals 12 (4) 5-7 33.