Roughly one month into the 2019 season, we’re still in Weird Stats territory. So long as we are, it’s worth appreciating the extreme numbers some players are putting up before they vanish into the ether, and few players are more reliably extreme than Joey Gallo. I checked in on him in last week’s visit to the furthest reaches of hitter performance, but since then, something else he’s doing — not unrelated — has captured my attention.
While it seems that Gallo has been around forever — he was a first-round pick in 2012, made his first top-100 lists in ’14, and debuted in June of the following year — he’s still just 25 years old and has two full seasons and some fragments under his belt. In both of those seasons (2017 and ’18), he reached the 40-homer level, struck out about 36% of the time (with over two Ks for every hit), walked a good deal, and finished with batting averages in the low .200s. For all of the extremes, he produced WARs of 2.8 in both seasons, with better defense as a near-full-time outfielder in the latter season (as opposed to shaky third base play in the former) which offset his wRC+ drop from 121 in 2017 to 110 in ’18. That’s a solidly above-average player before you factor in the added entertainment value he brings with his light-tower power. Here, have a 442-foot homer:
In this young season, Gallo has been something quite a bit more than solidly above average, hitting .284/.393/.689 through Wednesday. He entered Thursday ranked second in the AL in slugging percentage, tied for fifth in homers (eight), sixth in wRC+ (172), and tied for 11th in WAR (1.0). I’ll get to some of the less flashy particulars below, but what drew me in last week was his 62.5% home run-to-fly ball ratio, more than double a 2017-18 rate (28.8%) that ranked fourth in the majors; he’s since dropped to 50.0%, and will continue to fall even if he does remain the highest among qualifiers. What caught my eye in following up was his average exit velocity to date: 99.1 mph, tops in the majors.
2019 Average Exit Velocity Leaders
SOURCE: Baseball Savant
Stats through April 24. Minimum 40 balls in play
Admittedly, exit velocity is not the be-all and end-all of Statcast measures. Launch angle matters, for one thing; 99 mph with a 15 degree launch angle, for example, produces an expected batting average of .726, while 99 mph with a -15 degree launch angle produces an average of .206. A writer-friend who knows much more about Statcast than I do suggested that hard hit rate (balls with an EV of 95 mph or above) might be a more useful gauge of Gallo’s current hot streak, but intuitively, it’s more difficult to grasp what a 50% hard hit rate means, or, in Gallo’s case, a 65.9% rate, without additional context (it’s second in the majors). A 99.1 mph average exit velo? That’s a lot of smoked baseballs. In Gallo’s case, 25 of his 44 balls in play have been hit at 105 mph or higher. Read the rest of this entry »