Which is the best college football conference in 2021?

AnalysisAll analysis →

Every FBS team is a dot. Conference averages are not shown, and that is the point: the SEC’s mean is dragged up by four teams, the Big Ten’s spread is twice the Sun Belt’s, and a bar chart of means says none of it. What “compare the conferences” actually asks is how much of one league sits inside the other.

MetricCORE overallCORE offenseCORE defenseOffense EPA/playDefense EPA/play allowedOffense success rateOffense explosivenessPoints per drivePoints per drive allowedAverage starting field positionThird down conversionTeam talent composite

Season2026202520242023202220212020201920182017201620152014

CORE offense · 2021

One dot per team, one tick per conference median. Leagues are ordered by median, and the mean is deliberately not shown — four teams drag it and it hides how far the two distributions overlap.

All leagues ACC American Athletic Big 12 Big Ten Conference USA FBS Independents Mid-American Mountain West Pac-12 SEC Sun Belt

Conference	Teams	Median	Spread	Best	Worst
SEC	14	7.1	8.7	Tennessee 16.8	-12.3
Big 12	10	6.8	7.7	Oklahoma 12.9	-4.2
FBS Independents	7	1.7	21.2	BYU 14.1	-18.6
ACC	14	1.5	11.9	Virginia 10.6	-13.0
Big Ten	14	0.565	15.5	Ohio State 28.6	-16.6
American Athletic	11	-0.320	6.8	Cincinnati 10.8	-15.6
Mountain West	12	-0.340	8.3	Air Force 6.3	-24.7
Pac-12	12	-0.420	16.5	UCLA 15.2	-13.4
Conference USA	14	-2.8	9.9	Western Kentucky 14.3	-15.1
Mid-American	12	-3.1	10.5	Kent State 6.0	-20.4
Sun Belt	10	-8.1	11.9	Coastal Carolina 13.3	-13.5

Two numbers, not one

Median answers “how good is this league”. Spread — the interquartile range — answers “how evenly good”, and it is usually the more interesting of the two. A league with a high median and a huge spread is four contenders and eight teams padding their records, which is exactly the shape that produces a conference champion who keeps losing in January.

Note which metric you are looking at. CORE is opponent-adjusted, so it can be compared across leagues honestly. The raw metrics cannot: a conference that plays itself twelve times has its schedule strength baked into every raw number, which is the single most common way conference comparisons go wrong.