Welcome, Big 12 football.
Conference schedules got in full swing this week, as every team has a Big 12 contest under its belt now. Some of those Big 12 games were the first ones ever for some teams.
Oklahoma, Texas and Kansas are the only undefeated teams left in the Big 12 after four weeks. Texas and KU meet up this week, so that total will at least drop to two after Week 5.
KU handed BYU its first loss in its Big 12 debut, while Central Florida also suffered its first loss of the season in its first ever Big 12 game to Kansas State.