His lone game came in the with less than eight minutes left in the third period.
After the Latvian goalie made a high-danger save, Caleb Desnoyers coralled the puck and brought it back to the point. He wristed it towards the net and Martone was able to tip it in for a 3-0 lead as another insurance marker.
Canada tacked on another empty net goal with less than a minute left in regulation to make it 4-0 and got the shutout win over Latvia.
Canada has a rematch against Sweden in the semifinals. The former won by a score of 6-3 on April 25. The winner takes on the victor of Slovakia and the United States in the opposite semifinal bracket.
The gold and silver medal games take place on Sunday morning.