Yesterday, I unveiled the xK% regression equation 2.0 and used it to discuss pitchers who may enjoy a strikeout rate surge in the near future. Today I am looking into the opposite group — those whose xK% suggest a decline in strikeout rate may be imminent. Similar to the surgers, I am only going to list those pitchers with actual K% marks of at least 20%. If he’s only posting a 15% mark to begin with, but should really be at 10%, do we really care?

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You can look at parts of Martin Perez’ profile and find yourself salivating over the upside. At the same time, there are parts of his profile that can make you question whether he’s a major sell-high candidate. Ranked around the 100-mark entering the season, Perez seems closer to proving doubters wrong but hasn’t yet validated believers.

To wit: Perez isn’t striking many batters out, but he’s not walking many, either; He’s improved his ground ball rate, but he’s also been gifted a 0.0 percent HR/FB mark; and he has a 1.86 ERA, one that’s surely helped owners early, and it’s backed by a healthy 2.42 FIP and 3.20 xFIP, but ZIPS and Steamer don’t like him any better than a 4.38 and 4.68 ERA, respectively, for the rest of the season.

The good-and-bad profile gets even tougher to figure out when you dive in deeper.
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A year ago, I developed a regression equation to estimate what a pitcher’s strikeout rate (K%) should be. That formula used a trio of strike type rates found at Baseball Reference, including a pitcher’s looking, swinging and foul strike percentages. While the original formula was a strong estimator, I have since tweaked it slightly.

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Yesterday we looked at some sell high hitters. At the outset, I noted that selling high is mostly a thing of past – everybody knows it’s good to buy low and sell high. And everyone is a lot smarter about their player evaluation too. These days, the cool kids are buying high. To buy high, one need only identify which top, breakout performers are likely to remain among the top players. Sometimes, owners will sell these players at a relative bargain in their haste to sell high.

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When the Milwaukee Brewers selected Taylor Jungmann with the 12th pick in the 2011 draft, he was seen as a polished prospect with an advanced feel for pitching who would move quickly through the organization. If everything went to plan, Jungmann would be in the major-league rotation by late 2013, with a long career as a mid-to-back of the rotation starter ahead of him.

At the time, I wholeheartedly agreed with these sentiments. I saw Jungmann pitch several times during his college career at the University of Texas, and it was easy to see why he was viewed as such a sure thing. He had a mid-90s heater with a sweeping curve that projected as a plus pitch, and a change-up that seemed plenty good enough to avoid nasty splits.

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I’m not ashamed to admit that I once had a love affair with Edinson Volquez. He was wild, unfaithful at times, but I was younger then. (That’s how time and the aging process work, as I understand them.) The willingness to live on the edge, the danger he brought, it was part of his allure.

We occasionally reconciled through the years, but for only brief periods. As I matured, I grew to know my boundaries, and too often, Volquez crossed them. Eventually, I understood that he was just no good for me. I taught myself not to answer the phone. Eventually, he stopped calling.

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Welcome to your regularly scheduled Carlos Carrasco update. It’s another season, but two starts in, Carrasco has already disappointed his biggest fan. It’s easy to point to his 3.51 SIERA, ridiculous .400 BABIP and 53.8% LOB% and claim he’ll enjoy better luck moving forward. Similarly, it’s also simple to call him a head case, perform no analysis whatsoever, and move on. But of course, I’m not going to do either of these things. With a repertoire that seemingly appears fantastic, why isn’t Carrasco the best pitcher in baseball?

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At least not just deep leagues in the case of the first one. And they’re not just a couple of soft-tossing left-handers whose nicknames are spelled the same way, although that’s basically where the similarities end, besides the fact that both started out in Texas’ organization.

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You want deep? Then let’s drill, baby, drill, as injuries to a couple of established American League stars in Week 2 have opened up spots for some deep league fantasy options to get a chance to shine.
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Swinging strikes are half (more than half?) the battle. But you can use pitches for grounders, too.

Take Marco Estrada, for example. By whiff rates, his change (18.4%) is plus, but his curve (9%) is not. That’s okay! By grounder rate, his curve is plus plus (60.8%). That means he has two great secondary pitches and qualifies to be a Guy I Like.

In order to help you spot good grounder pitches, I’ve run the benchmarks on each pitch type below. Should pair nicely with a Cabernet and this post which shows the benchmarks for whiff rates per pitch type.

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