The Bulldogs (5-1) shot 58.8 percent in the first half, including 9 of 16 from 3-point range, to roll to a 51-28 lead. They finished their fifth-straight win at 49 percent (29 of 59), missing all four 3's in the second half.
Yale had a 47-20 rebounding advantage with 19 coming on the offensive end. Sears had nine rebounds, six offensive, and blocked three shots.
The Bulldogs went 16 of 25 from the foul line while Lafayette was just 4 of 9.