Hosmer, the first baseman who played all 10 games, led the team's regulars with a .389 average and tied for the most hits, as he went 14-for-36 with seven RBIs. He also walked eight times for a .511 on-base percentage.
Moustakas, in 10 games at third base, led the team with eight RBIs. He batted .244 (10-for-41) with three doubles and a home run. Hosmer had two doubles, two triples and a homer.
The Royals had four left-handed pitchers on the team.
Mike Montgomery was 2-0 with a 1.80 ERA in two starts and struck out 14 in 10 innings. Everett Teaford, in two starts, was 1-0 with a 2.00 ERA and 13 strikeouts in nine innings.
Danny Duffy was 1-1 in his two starts, finishing with a 2.89 ERA. Reliever Tim Collins was in five games with a 2.57 ERA, scored on only in his last outing.
Hosmer, Moustakas and Montgomery were named to the all-tournament team along with a fourth Team USA player, center fielder Mike Trout of the Angels.
Team USA finished with a 9-1 record when Wednesday's scheduled third-place game against Venezuela was canceled because of rain. The cancellation meant the two teams finished tied for third place. The Dominican Republic, which inflicted the only loss on Team USA in the semifinals, won the championship on Wednesday night with a 5-2 victory over Cuba.
Dick Kaegel is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.