Add Saturday do-or-die drama to the Friday night lights landscape as this weekend the Round of 16 playoffs are underway for high school footballers:

4A - Chiawana Riverhawks vs. Bothell Cougars

Saturday November 10th, 1:00 p.m. at Edgar Brown Stadium in Pasco. The winner of this contest plays the winner of Skyline and Union. The Union Titans are unbeaten and the overall Number One seed. Union beat Chiawana earlier this season in a non-league game.

3A -  Kamiakin Braves vs. O'Dea Fighting Irish

Friday November 9th, 5:00 p.m. at Memorial Stadium in Seattle. This winner of this contest plays the winner of Bethel and Peninsula. This is a re-match of the 2016 State 3A Championship game, won in overtime 14-7 by the Braves for their 1st ever state football title (in 4 tries). This year, O'Dea is the #2 seed, Kamiakin 15.

2A -  Prosser Mustangs vs. Tumwater Thunderbirds

Saturday, November 10th, 1:00 p.m. at Tumwater Stadium. The winner of this contest will play the winner of Eatonville and Lynden.

1A -  Royal Knights vs. Riverside Rams

Friday, November 9th, 7:00 p.m. at Royal High School. Royal the unbeaten #1 seed. The winner of this contest plays the winner of Mt. Baker and Montesano.

1A - Connell Eagles vs. Colville Indians

Saturday November 10th, 1:00 p.m. at Colville High School. The winner of this contest plays the winner of Elma and Meridian.

1A - Zillah Leopards vs. Klahowya Eagles

Friday November 9th, 6:00 p.m. at Zillah High School. The Leopards are unbeaten and the Number Two seed...if they win, they face the victor in the Newport and La Salle contest.

2B - Tri-Cities Prep Jaguars vs. Wahkiakum Mules

Saturday November 10th, 1:00 p.m. at Chiawana High School. TC Prep is unbeaten, and if they can stay that way, they'll face the winner of Reardan and Toledo.

2B - Liberty Christian Patriots vs. Kalama Chinooks

Saturday November 10th, 1:00 p.m. at Chinook Stadium in Kalama. If the Richland school can pull off an upset, they'd play the winner of Pe Ell/Willapa Valley and Northwest Christian School.

Follow the brackets for all classifications here.

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