If the high of the previous three walk-off wins was akin to chugging energy drinks on an extended fourteen hour jag, then this was the inevitable crash afterwards. (I'm a writer, don't try these metaphors at home, kids.) Brandon McCarthy took the mound against former #1 overall draft pick Gerrit Cole. McCarthy pitched alright (technical term), but only lasted 5 and 2/3rds, and Cole was slightly better/the Diamondbacks offense was slightly worse.
The Pirates started off the scoring in the bottom of the third. With two outs in the inning, Pedro Alvarez was able to get a soft liner to the outfield which scored two runs to make it 2-0 Pirates. The Diamondbacks had some of that comeback pluck with them in the next half-inning. Paul Goldschmidt and Aaron Hill were able to coax walks out of Cole. After a spiked pitch that Cole possibly learned from a former college teammate moved the runner up, Martin Prado got a single that scored Goldschmidt. With two outs, A.J. Pollock was able to get a seeing eye grounder up the middle to score Hill and make it 2-2.
Pittsburgh re-took the lead in the fifth. Neil Walker doubled home Starling Marte and Andrew McCutchen singled Walker home to make it 4-2 Pirates. McCarthy would be pulled an inning later with two outs. 4 through 5 and 2/3 is not the best line, but McCarthy has gotten as much run support as.... something that doesn't get a lot of run support (Again, don't try these metaphors at home.)
The Diamondbacks offense went to neutral at that point, and the Pirates added two more runs in the bottom of the eighth on a Pedro Alvarez two-run dinger off J.J. Putz. The Diamondbacks went 1-2-3 in the ninth and that was that. Also the Dodgers won and the Reds are winning so that's a thing.
The Novelty Of the Jack Sparrow Character: McCarthy, -31.7%