May 13: Bronson Arroyo complete game
Bronson Arroyo vs. Stephen Strasburg. No chance, then. Just don't tell Arroyo, who threw the first of only two complete games by a Diamondback pitcher this season, outdueling the Nats' young ace as Arizona prevailed 3-1 at Chase Field. Arroyo scattered seven huts and a walk, with seven strikeouts, and allowed one earned run, taking 110 pitches. But the cost may have been high, as that appears to have been when Arroyo tore his UCL, leading to season-ending Tommy John surgery. "I'm pretty sure it must have torn off during that game at some point," he said a couple of months later.
May 29: Josh Collmenter faces the minimum
Likely the best start of the season came later the same month, and saw Collmenter beat the Reds 4-0, and facing the minimum 27 batters in so doing. He allowed no walks and three hits, but two were erased on ground-ball double plays, and the third on an ill-advised attempt to tag up and advance from second to third. It took Josh only 94 pitches for his complete game, giving him only the sixth Maddux in franchise history, and the fewest number of pitches for a shutout by an Arizona pitcher, since Miguel Batista took 93 pitches in July 2003. It was particularly impressive as Collmenter had, to that point in his career, only thrown more than seven innings once.
August 13: Andrew Chafin tosses five shutout in major-league debut
Thanks to a rain-out the previous day, Chafin was called upon to make his major-league debut in the second game of a double-header, in front of family and friends in his home state of Ohio. And he didn't disappoint, becoming just the third Diamondback starter to allow no runs in his major-league debut, following in the footsteps of Micah Owings and Jarrod Parker. Chafin went five shutout innings, on three hits and two walks with a trio of strikeouts. While he got a no-decision, he kept the Diamondbacks in the game and they eventually prevailed, winning 1-0 in 12 innings, a Tuffy Gosewisch single scoring Xavier Paul.
September 3: Daniel Hudson returns to the majors
It was a nondescript Wednesday night in San Diego, with a crowd of barely sixteen thousand on hand at Petco for a meaningless end of season contest between two sub-.500 teams. But a comeback story more than two years in the making reached its successful conclusion, as Hudson made his first appearance in the major-leagues, since June 26, 2012. With a 5-1 lead, Hudson came on in relief of Collmenter, and tossed a clean eighth inning on 13 pitches. In the grander scheme of things, it was entirely forgettable. But to those who had followed Hudson's progress through two Tommy John surgeries, it was totally wonderful.
September 20: Oliver Perez fans four in one inning
Another meaningless September game, this one between two teams who were 58 games below .500 combined, but it provided a lesson that, even in such contests, you can still experience something you've never seen before. The four-K inning is a very rare event in baseball, typically requiring a dropped third strike which allows a batter to reach base, thereby counting as a strikeout but not an out. Perez managed the feat for only the 72nd time in major-league history - for comparison, there have been about four times as many (287) no-hitters or batters who have hit for the cycle (305) - and became the first Diamondback ever with a four K inning.