I only looked at the past 3yrs...........1st round games when the line is 3pts or less.
Favorites covered 4 games
Dogs covered 10 games and won 6 of them outright.
It looks like we have 6 games this year in the 1st round with a line of 3pts or less.
Maryland -2 Xavier
Vandy -1 NW
South Carolina -1.5 Marquette
Arkansas -1 Seton Hall
Michigan -2.5 Okla St
Miami -2 Mich St