#3 The Celtics, as a unit, are perfect from the free-throw line
Morris, Irving, Smart, Theis and Rozier were the only Celtics who made it to the line. And they ended up making all of them, giving their team a perfect 25-25 from the FT line in this game.
Boston are averaging 80% as a unit from the FT line (which is the 8th best in the league) this season, and they finished this game with five players in double figures.
But John Wall had his reservations regarding the no calls from the referees on the night. He said after the game:
"We get so many hand-check calls to put those guys on the free throw line. Let guys make plays. I mean, then we drive to the basket, getting fouled, and we're not getting it. We play just as aggressive as anybody else. So I don't understand it. I don't respect it."
Washington actually took more foul shots, 29 to 25. But in contrast, the Wizards committed 27 personal fouls in comparison to the Celtics' total of 19, so you actually see what Wall was pointing at.
Though the Wizards had just one more turnover than the Celtics, the foul-line is probably what tipped the balance in Boston's favour.