Our happy hour fact to amaze your drinking buddies with.

Odds-makers tend to overstate the home field advantage in college football rivalry games.

Researchers at East Carolina University looked at 30 years worth of scores in games between major conference college football teams that play each other every year and calculated that the average margin of victory for the home team in these games was 2.3 points.

That figure doesn't square with the odds-makers in Las Vegas, who typically (but less scientifically) give the home team either a 3- to 3.5-point built-in advantage for hosting the matchup.

While we're loathe to promote gambling, if it's between calling your bookie and picking all the away teams this rivalry weekend or blowing all of your cash on phony Black Friday sales, we say go with the math.