The seven no-hitters for 2012 tied the record for most no-hitters in a season set first in 1990 and then repeated in 1991. Three of the no-hitters in 2012 were perfect games. In 2010, five pitchers tossed no-hitters. This was the first year since 1991 to have at least three no-hitters.  Sabermetricians are asking the …