Weekly college football top 25 rankings are a big part of every season, and Athlon Sports will update its top 25 following the games each weekend. The seventh weekend of the 2018 season featured chaos and upsets throughout the Saturday slate. Alabama retains its No. 1 spot after beating Missouri, followed by Ohio State, Clemson and Notre Dame in the top four. Florida jumps to No. 5 after beating Vanderbilt, followed by LSU at No. 6. Michigan leaps to No. 7 after a dominant win over Wisconsin on Saturday night, with Oregon climbing to No.