“Against the spread” refers to betting on a team to perform better than the point spread set by the sportsbook. They must either win by a margin greater than the spread (for favorites) or lose by fewer points than the spread (for underdogs) for the bet to be successful.
Quote from NY Post Point spreads are supposed to be the great equalizer. History has shown that the eventual champions are often underestimated by the composite sum of market influences, even when they’re media-friendly, high-profile programs. Consistently clearing high expectations is a sign of greatness.
6-2-2 against the spread is not that meaningful. If Vegas is getting it right it should be about 50-50. Here we have them beating the spread 6 out of 10 times, and not beating it 4 times. That doesn’t seem extreme enough on this sample size to say that there is a systematic underestimation.