Washington high school boys basketball Playoff Pick 'Em Challenge: Make your regional-round predictions

The Washington (WIAA) high school boys basketball tournament starts this weekend, so check out our regional-round picks - and then make yours!

Ethan Harris and Camas won the 4A GSHL in 2024-25, and play Richland in regionals. / Photo by Vince Miller

WIAA boys playoff basketball officially tips off in Washington later this week, starting Friday (Feb. 29) at approved regionals sites throughout the state.

Brackets have been released, and with that comes the chance to play the High School on SI Playoff Pick 'Em Challenge.

Here are all the Class 4A and 3A matchups in the regional round of the Washington high school boys basketball playoffs, with Todd Milles' predicted winners and links to make your pick.

Regional-round 4A matchups, predicted winners (all games Feb. 28-March 1)

Gonzaga Prep vs. Puyallup: Gonzaga Prep (Make your pick)

Auburn vs. Mount Si: Auburn (Make your pick)

Glacier Peak vs. West Valley: Glacier Peak (Make your pick)

Richland vs. Camas: Richland (Make your pick)

Davis vs. Woodinville: Davis (Make your pick)

Olympia vs. North Creek: Olympia (Make your pick)

Kentwood vs. Arlington: Kentwood (Make your pick)

Lake Washington vs. Emerald Ridge: Emerald Ridge (Make your pick)

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Regional-round 3A matchups, predicted winners (all games Feb. 28-March 1)

Rainier Beach vs. Bellarmine Prep: Rainier Beach (Make your pick)

Mount Spokane vs. Seattle Prep: Seattle Prep (Make your pick)

Garfield vs. Lincoln: Garfield (Make your pick)

Bellevue vs. Edmonds Woodway: Bellevue (Make your pick)

Eastside Catholic vs. Prairie: Eastside Catholic (Make your pick)

Monroe vs. Gig Harbor: Monroe (Make your pick)

Auburn Mountainview vs. Federal Way: Federal Way (Make your pick)

Shorecrest vs. Liberty: Shorecrest (Make your pick)

Other classifications

To play the Pick 'Em Challenge in other classifications, follow the links from our Washington bracket home page.

Playoff Pick 'Em

High School on Si 2025 Playoff Pick 'Em Challenge / Graphic illustration by Jesus Baca

Playoff Pick 'Em is a brand-new bracket prediction challenge for high school sports, where users compete to pick the most accurate bracket. The contest is free-to-play and is available nationwide for most sports on High School On SI. Enter today and pick your favorite teams to take home the title!

High School On SI is celebrating the WIAA Hardwood Classic and the road to the Tacoma Dome with a $500 prize to the winners of the 4A Boys and 4A Girls brackets in the Playoff Pick 'Em Challenge. Enter for free today!

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