Brandon Svoboda (Level Green, Pa./Boston University) staked the U.S. to a lead it would never relinquish with his goal at 6:39 of the opening period on a sharp-angle shot that beat Swiss netminder Christian Kirsch through the five-hole.
Hagens added to the lead 1:44 later, as he buried a net-front opportunity generated by a pass from Oliver Moore (Mounds View, Minn./University of Minnesota).
Moments after a successful U.S. penalty kill, Leonard forced a turnover in the neutral zone, powered his way toward the net and lifted a shot past Kirsch that proved to be the game-winner at 11:35.
Nils Rhyn scored short-handed at 15:04 to cut the Team USA advantage to two.
Danny Nelson (Maple Grove, Minn./University of Notre Dame) redirected a pass from Moore into the back of the net to regain the three-goal lead for the U.S. at the 16:44 mark.
Zeev Buium (San Diego, Calif./University of Denver) fired home a one-timer at 7:45 of the middle stanza following a cross-crease pass from Gabe Perreault (Hinsdale, Ill./Boston College) on the power play to extend the U.S. advantage to 5-1.
Hagens added his second goal of the contest at 15:03 following back-to-back passes between him and Perreault to extend Team USA’s lead to five. Leonard followed up 1:20 later with a power-play goal to give the U.S. a 7-1 advantage after two periods.
Switzerland’s Andro Kaderli scored on the power play at 6:53 of the third to account for the 7-2 final score.
U.S. netminder Hampton Slukynsky (Warroad, Minn./Western Michigan University) made 17 saves in the victory.
NOTES: Ryan Leonard, who scored two goals, was named U.S. Player of the Game … The U.S. outshot Switzerland, 31-19 … Team USA was 2-for-4 on the power play, while Switzerland was 1-for-3.