Then in the ninth, Diamondbacks closer J.J Putz (0-1) hit Marco Scutaro with a pitch to start the frame and two outs later Helton unloaded a bomb to right to complete the comeback.
Tyler Chatwood (1-0) earned the victory with two innings of shutout relief for Colorado, which blew a 5-1 lead earlier in the game.
Miguel Montero smacked a three-run home run for Arizona.
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