Oregon (OSAA) high school football playoff matchups in 6A, 5A, 4A

Lake Oswego, West Linn, Sheldon and Lakeridge earn first-round byes in the 6A Championship Bracket

Ethan Uecker had a five-yard touchdown catch for Lake Oswego late in the second quarter of the Lakers' rivalry win against Lakeridge on Friday at Lake Oswego High School. / Photo by Dan Brood

The playoff fields were finalized Friday in 6A, 5A and 4A Oregon high school football.

10 things to know from Week 9

Here are next week's first-round playoff matchups:

6A Championship Bracket

First round

No. 9 Tualatin (6-3) at No. 8 Mountainside (7-2)

Winner to play No. 1 Lake Oswego (9-0)

No. 10 Nelson (7-2) at No. 7 Sherwood (7-2)

Winner to play No. 2 West Linn (8-1)

No. 11 Clackamas (6-3) at No. 6 Sprague (8-1)

Winner to play No. 3 Sheldon (9-0)

No. 12 Wells (7-2) at No. 5 Central Catholic (9-0)

Winner to play No. 4 Lakeridge (7-2)

6A Playoff Bracket

First round

No. 28 Jefferson (4-5) at No. 13 South Medford (5-4)

No. 27 Roosevelt (4-5) at No. 14 North Medford (5-4)

No. 26 Liberty (4-5) at No. 15 Jesuit (7-2)

No. 25 Oregon City (1-8) at No. 16 Newberg (4-5)

No. 24 Sunset (3-6) at No. 17 Grants Pass (5-4)

No. 23 Westview (4-5) at No. 18 West Salem (5-4)

No. 22 Lincoln (6-3) at No. 19 Tigard (2-7)

No. 21 McMinnville (4-5) at No. 20 Sandy (5-4)

5A Championship Bracket

First round

No. 16 La Salle Prep (6-3) at No. 1 Silverton (8-1)

No. 15 Thurston (7-2) at No. 2 Mountain View (9-0)

No. 14 Hood River Valley (7-2) at No. 3 Dallas (8-1)

No. 13 Central (7-2) at No. 4 Churchill (8-1)

No. 12 Bend (6-3) at No. 5 Wilsonville (7-2)

No. 11 Hillsboro (7-2) at No. 6 West Albany (7-2)

No. 10 Lebanon (6-3) at No. 7 Glencoe (7-2)

No. 9 Willamette (8-1) at No. 8 Summit (5-4)

4A Championship Bracket

First round

No. 16 Gladstone (4-5) at No. 1 Marist Catholic (8-1)

No. 15 Molalla (4-5) at No. 2 Cascade (8-1)

No. 14 Seaside (5-4) at No. 3 Henley (8-1)

No. 13 Tillamook (5-4) at No. 4 Crook County (9-0)

No. 12 Hidden Valley (4-5) at No. 5 Scappoose (8-1)

No. 11 La Grande (5-4) at No. 6 Philomath (7-2)

No. 10 Mazama (5-4) at No. 7 Pendleton (6-3)

No. 9 Stayton (6-3) at No. 8 Estacada (5-4)

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