When Michael Augustine wrote about Zac Gallen’s repertoire back in February, he called the 24-year-old Arizona Diamondbacks right-hander “a potential future ace.” Raw stuff wasn’t the reason. None of Gallen’s offerings grade out as plus-plus (although his changeup comes close). In terms of velocity, the former University of North Carolina Tar Heels hurler averaged a pedestrian 93.1 mph with his heater last season.
What makes Gallen good is his command, as well as his ability to mix, match, and tunnel his five-pitch mix. The numbers back up the promise. After debuting with the Miami Marlins last June — he was dealt to the D-Backs at the trade deadline — Gallen put up a 2.81 ERA and a 3.61 FIP over 15 starts. Despite the lack of a power profile, he punched out 96 batters in 80 innings.
Three months after Augustine addressed Gallen’s pitches from an analytical angle, we’re going to learn about them from the pitcher himself. Gallen chronicled the origin and development of each in a phone conversation earlier this week.
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David Laurila: What is your full repertoire?
Zac Gallen: “Four-seam, changeup, curveball, and… I call it a cutter, but it’s like a hybrid cutter/slider. You could characterize it as a hard slider, I guess.”
Laurila: No two-seamers?
Gallen: “Maybe one here or there. On rare occasion I’ll kind of squeeze one inside on a righty, maybe behind in the count, or to a lefty to see if I can get him to roll over. But my four-seam is a much better pitch, so I tend to stick with that. I probably throw a [two-seamer] once a game, or every couple of games.”
Laurila: When did you start mixing in an occasional two-seam? I’m assuming the four came first?
Gallen: “No. I actually grew up throwing a two-seamer. My dad coached our Little League team and when I was younger, maybe six, we had a guy who had played pro ball come out and teach us some things. He had me toy around with a two-seamer, so I started out throwing that. I didn’t make the full switch to a four-seamer until probably my junior year of college.”
Laurila: Why the switch to almost exclusively four-sam fastballs? Read the rest of this entry »