The sophomore defenseman for Northeastern University routinely plays over 30 minutes a game, according to his coach, who says there at times if seems like the Montreal Canadiens prospect is on the ice for the full 60 minutes.
"His play does not drop off with more minutes. His physical attributes allow him to be able to skate for that long and recover,'' said coach Jim Madigan, whose team is ranked No. 12 in Division I. "He wants to be a difference-maker and he is, both offensively and defensively.''
Harris (5-11, 179), who was selected by the Canadians in the third round (No. 71) of the 2018 NHL Draft, made the United States' preliminary roster for the IIHF World Junior Championship, which begins Dec. 26 in the Czech Republic.
The 19-year-old has 13 points (three goals, 10 assists) in 18 games this season after having 13 points (one goal, 12 assists) in 39 games last season.
A superb skating stride and the ability to move the puck are his main attributes, but he is a well-rounded on defense.
"He's not going to make the big hit, but he's going to eliminate you from the puck and you're going to know when he hits you," Madigan said. "He helps provide offensive production for us, jumping in the play. But he defends really well.
"He's a guy that thinks first about his own zone. He's thorough, reliable. From a coaching perspective, you want to be able to trust your players. We trust him unequivocally because he makes smart decisions with the puck.''
Harris, who is from Haverhill, Massachusetts, won two New England prep championships at Kimball Union Academy in New Hampshire.
He played well in five games with Youngstown of the United States Hockey League in 2018 after his prep season finished, providing a comfort level for the coaching staff at Northeastern that Harris was ready for the rigors of college hockey.
"You always wonder and question how the adjustment is going to go from prep school to college because it is such a big jump,'' said Madigan.