Despite never holding a lead until the end, USA snagged the victory and outshot Canada 36-22.
Makar opened the scoring at 4:13 of the first period with a power-play goal on a shot from the point to give Canada the early 1-0 lead. The blueliner now has three points (one goal, two assists) in the first three games of the tournament.
Canada's Conor Timmins, another Avs defensive prospect, recorded 20:30 of ice time and had one shot on goal. Timmins has one assist in three contests during the World Juniors.
Four of the six combined goals scored in regulation came on man-advantage situations.
Team Canada found the back of the net twice during power plays in the first stanza and took a 2-0 lead going into the first intermission. The United States got on the board in the second frame as the squad tallied a goal of its own while up a man, but Canada scored the first even-strength marker of the contest at 17:39 to take a 3-1 advantage going into the final 20 minutes.
The U.S. netted its second power-play goal of the game at 6:09 of the final frame and evened the match less than a minute later to send the contest into overtime knotted at 3-3.
After a scoreless five minutes, the game went to a best-of-five shootout. The Americans sunk their first two attempts into the twine and earned the win after the Canadians missed on their first four shots.
Canada is still on top of Group A with seven points (2-0-1-0) and will close out preliminary play on Saturday versus Denmark at 6 p.m. MT at KeyBank Center.
