With only Michigan State on bye this week, it was a busy weekend for Big Ten football.

The Iowa Hawkeyes picked up one of the biggest wins of Week 9 as they crushed the No. 25 Wisconsin Badgers, 30-0, but there was no bigger win than USC taking care of business against No. 2 Ohio State, 30-18.

Those weren't the only upsets to occur, though, as Oregon also earned a ranked win by taking down No. 20 Northwestern.

Minnesota had No. 4 Indiana on upset watch, but the Hoosiers survived in an overtime thriller.

UCLA cruised to 8-0, though they were in a non-conference showdown against Nevada.

Penn State finally secured its first Big Ten win by taking down Purdue, Washington took down Nebraska, and then Illinois and Michigan picked up expected conference victories.

Big Ten football power rankings after Week 9

Oct 31, 2026; Iowa City, Iowa, USA; Iowa Hawkeyes offensive lineman Jack Dotzler (71) and tight end Addison Ostrenga (87) lift the Heartland Trophy after the game against the Wisconsin Badgers at Kinnick Stadium. Mandatory Credit: Jeffrey Becker-Imagn Images
  1. UCLA Bruins (8-0)
  2. Indiana Hoosiers (8-1)
  3. USC Trojans (7-2)
  4. Ohio State Buckeyes (6-2)
  5. Iowa Hawkeyes (6-2)
  6. Minnesota Golden Gophers (5-3)
  7. Wisconsin Badgers (5-3)
  8. Oregon Ducks (5-3)
  9. Northwestern Wildcats (6-2)
  10. Washington Huskies (5-3)
  11. Michigan Wolverines (5-3)
  12. Nebraska Cornhuskers (5-3)
  13. Illinois Fighting Illini (5-3)
  14. Penn State Nittany Lions (4-4)
  15. Purdue Boilermakers (3-5)
  16. Rutgers Scarlet Knights (2-6)
  17. Michigan State Spartans (2-6)
  18. Maryland Terrapins (2-6)

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This article originally appeared on Badgers Wire: Big Ten Week 9 power rankings: New No. 1 after USC upset Ohio State

Source: Yahoo Sports