Well, this certainly won't go to the Reds pitching staff. With the exception of Francisco Cordero, who pitched a scoreless, one-hit eighth, every Red who pitched in this one allowed runs.
I'm going to have to give this one to Asdrubal Cabrera, who went 5 for 5 with two HRs. Sure, he also had an error, but that wasn't enough to make for how he walloped Reds pitching all afternoon.
I don't even know how to narrow it down to a few key plays here. The Reds took a lead on a Joey Votto solo HR in the first, but Edinson Volquez gave up four runs in the bottom of the inning and the Reds trailed from then on. Feel free to check out the FanGraph if you want to see how this one looked.