The biggest, in terms of difference in rankings, came Saturday night as unranked Arizona upended No. 10 Utah 23-10 in Rice-Eccles Stadium, dropping the Utes from the ranks of the unbeaten. But they weren’t the only previously undefeated teams to suffer their first loss in Big 12 play on Saturday.

Colorado, which got a Heisman Trophy-esque performance from Travis Hunter, dropped UCF to 3-1 on the season with an impressive 48-21 victory in what was arguably the Buffaloes‘ most complete victory of the season.

REQUIRED READING: What Deion Sanders said after Colorado football’s upset win vs UCF

Elsewhere, in the only ranked meeting of the day, No. 25 Kansas State handily beat No. 20 Oklahoma State 42-20, helping erase the bad taste of a 38-9 defeat the week prior to BYU.

Here’s how those games, and more, affected the Week 6 US LBM Coaches Poll and AP Top 25:

College football rankings for Week 6

This section will be updated when the US LBM Coaches Poll is unveiled.

AP Top 25

This section will be updated when the AP Top 25 is unveiled.