The U.S. improved to 3-0, with its final game coming Sunday against Finland.
Pietila, who plays for the U.S. National Team Development Program, is No. 112 on NHL Central Scouting's mid-term ranking of North American skaters for the 2011 Entry Draft.
Travis Boyd passed to Pietila, who broke in alone, deked to his backhand and deposited the puck behind the Czech goalie Patrik Bartosak.
Reid Boucher and Nicolas Kerdiles also scored for the U.S., and goalie John Gibson, Central Scouting's top-rated netminder, picked up the win.
For more on Gibson's season, take a look at this profile Mike Morreale wrote on him earlier this season.
Rocco Grimaldi assisted on Boucher's goal, giving him a team-leading 8 points.
In three games at the tournament, the U.S. has outscored it's opponents 19-7.




