Shingo Usami plated three runs as the Chunichi Dragons won 5-1 against the Hiroshima Carp, who dropped to second in the Central League on Thursday. Catcher Usami put the Dragons on the board by belting a two-run home run off Allen Kuri (6-8) with two outs in the fourth inning at Vantelin Dome Nagoya, where he also hit a sacrifice fly in the sixth for a 3-1 lead. Takahiro Matsuba (4-5) held the Carp to a run on three hits over five innings, tossing three 1-2-3 innings. Cleanup Seiya Hosokawa hit a two-run shot in the eighth as he went 2-for-4 for the home team. In the Pacific League, former Cy …