48.4 pts per game: 2019 LSU
48.5 pts per game: 2020 Alabama
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LSU probably had one of the toughest traditional schedules of all time in 2019. At least the top half of it.
But they also played Ga Southern, Northwestern State, and Utah State.
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2020 wasn't a traditional year for anyone, but for Alabama, it was a 10-game conference schedule with no cupcakes. Alabama missed the bottom 2 SEC teams, while LSU played both of the bottom 2 in their season.
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So if you want to compare the schedules, and ranked every opponent by both teams, LSU played the bottom 5 on that combined list