Jared Sullinger added 21 for the Celtics, who jumped to leads of 12-0, 18-1 and 25-3 and improved their Atlantic Division-leading record to 10-12.
The Celtics led 58-31 at halftime, then Crawford made four three-pointers in a 34-point quarter that extended Boston's lead to 92-56. The Celtics then scored the first four points of the fourth for a 40-point bulge, triggering loud boos that would get louder at the final buzzer.
Boston went on to surpass a 38-point victory by the Clippers over Chicago that had been the NBA's biggest victory this season.
Carmelo Anthony scored 19 points for the Knicks, who were on the receiving end of a rout this time. New York was coming off of a 30-point victory over Brooklyn and a 38-point rout of Orlando.
Crawford hit six three-pointers for the Celtics, who stay in New York for the next couple of days during something of a reunion week. They face
It was 12-0 before the Knicks finally got on the board on Anthony's free throw after the Celtics were called for a defensive three-second violation. Crawford and Sullinger then hit consecutive three-pointers to make it 18-1 before the Knicks finally made a basket on Anthony's shot with 5:45 remaining.
The Celtics led 34-11 after one and opened a 26-point lead when
Knicks starters were three for 23 in the first half, including a combined 0 for 8 by guards
Miami 110, at Detroit 95:
at Houston 98, Orlando 88: