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 sixth weekend of the 2018 season featured three undefeated teams losing for the first time this year. Thanks to a blowout win over Arkansas, Alabama remains No. 1 in the top 25, followed by Ohio State at No. 2, Georgia at No. 3 and Clemson at No. 4. After beating Oklahoma 48-45, Texas jumps into the top 10, with Florida climbing to No. 8 after knocking off LSU.