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The sixth week of the 2021 college football season is in the books, and it was another wild one. Top-ranked Alabama fell to unranked Texas A&M, Oklahoma came back from 21 down to topple TexasIowa won a top-five thriller over Penn State, and Georgia dominated Auburn on the Plains. A total of 40 ranked teams have lost through six weeks of the season, which has made this year feel a lot like 2007 -- when two-loss LSU won the BCS Championship Game over Ohio State

The chaos of the season means that several teams are taking some disappointing report cards home, while others are going to get a little extra dessert from mom and dad for their work during Week 6. It also shakes up our expectations for who may be playing in the College Football Playoff at the end of the season, not to mention the national championship game a week later.

Here are this week's grades for each national title contenders based on their odds entering Saturday's action. Odds via Caesars Sportsbook.

College football grades: Week 6 report card