Slowey is Slower

Kevin Slowey shows us that it’s not enough to just not walk guys. If your stuff is hittable, batters will earn their bases on the field.

That said, Slowey had a very nice year last year, and with a K/9 right around the league average (6.90 K/9), there was some hope that he would build on the campaign and take another step forward this year.

So far, fans and fantasy managers are still waiting for that step forward. Instead, Slowey’s strikeout rate has fallen almost a full run (6.02), and his 1.54 WHIP is full of dinks, dunks and blasts. It’s certainly not walks, as Slowey still sports an elite walk rate (0.89 BB/9). The question lingers: how much of this poor start is lousy luck and how much is due to mediocre stuff?

Luck has surely played a big part. His BABIP is .370 and his FIP is 4.44, so his ERA is a little bloated by the luck of the bounce. But even the secondary statistics can’t agree about his luck. He’s sporting a 35.4% infield fly ball rate, which is unsustainably lucky (it’s 15% for his career). Also, he’s stranding 76.6% of his baserunners, which is slightly lucky. And for a guy with a career home run rate over 1 per game, his 10.8% home run per fly ball rate is very neutral.

He’s also giving up a career high 24.1% line drive rate, which is a good spot to start talking about his stuff. With an 89 MPH fastball, an 84 MPH slider, a 74 MPH curveball and an 83 MPH changeup, there’s just not enough differentiation in speed between his pitches to really keep the hitters off balance. He’s usually in the zone (see his walk rate), and his 91.3% contact rate in the zone puts him at 24th worst in the league in that category. (Teammate Glen Perkins ‘leads’ the league with batters making contact on 98% of pitches inside the zone, and Nick Blackburn is 23rd, so there’s something in the water in Minnesota, it seems.)

A quick look at some pitch F/X samples doesn’t provide too many clues. Slowey’s slider is actually breaking a couple inches more this year, and the rest of his stuff seems intact, with one major caveat. Slowey has lost almost a mile per hour on his fastball (89.9 to 89.2). His slider has lost one and a half miles per hour (85.7 to 84.1). Since he wasn’t much of a strikeout pitcher to begin with, and his stuff isn’t very fierce either, this slight velocity loss may be some of the reason for his poor start this year. Without more velocity history, it’s hard to tell if this is a temporary blip or not, but a peek at his next pitch f/x data would be a good idea for those thinking of acquiring him. A few ‘90’s on the gun would serve him well.

Another interesting question that arises when looking at Slowey’s numbers is if he should pitch outside the zone a little more. Batters are reaching on 26.2% of his offerings outside the strike zone, a number in line with his past (25.9% career). That number also puts him right next to such strikeout luminaries as Felix Hernandez and Jake Peavy. Since batters make contact on 72.9% on those pitches, it may be possible that Slowey could expand his zone a little for better results.