Archive for SP

Which Pitchers to Start Today 9/29/15

Yesterday, Mike Podhorzer gave you 10 pitchers to start for yesterday (and yesterday only). Indeed, the well of relevant advice has run dry save a few drops here and there, yet it’s too early to look forward to offseason chatter.

You all liked Pod’s idea, though; you just needed the advice in advance. Still, continuing this pattern leaves us without any names for today. Perhaps you’re in a league where you can make moves prior to the day’s first game. If that’s the case, then I hope this helps! You have about 45 minutes until day games start.

Games are ordered by start time per ESPN. And, for your convenience, here’s some color-coded goodness: No-Brainer, Maybe, Sit (or a desperate deep-league play)

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Z-Contact% as a Function of Strictly a Pitcher’s Fastball

A couple of weeks ago, I investigated Justin Verlander’s resurgence. I found reasons to validate his hot streak but turned up additional question marks along the way.

One of them was his zone contact rate (Z-Contact%). At 79.7 percent, it would have been the second-lowest of his career by several percentage points (despite not performing “at peak”). However, I realize now, unfortunately, that I must have encountered a glitch in the leaderboards — his Z-Contact% as of August 21 (because the post, despite running the same day as his Aug. 26 start, was published prior to it) was 85.7 percent.

Regardless, it got me thinking what affects a pitcher’s zone contact rate because it correlates very strongly with strikeout rate (R-squared = .594). User DoubleJ speculated about the metric via comment on one of last week’s posts:

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Three Unowned Starters for the Home Stretch

(Dave Andersen published a similar post for hitters in our Community section last week. Check it out here.)

I want to say something inspiring such as “it’s never too late to make a move,” but that’s patently untrue. In two of my leagues, it’s too late. Very, very too late. That kind of statement only applies to contenders.

Interpret it in a different context, however, and it carries some weight. If you play in a dynasty league, you can, and should, always make moves.

Major League Baseball has a bounty of young, electric pitching talent. A lot of that talent remains largely unowned, too, while other pitchers retain lofty ownership numbers because of their name recognition.

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Is Justin Verlander Back?

A month ago, I ridiculed Justin Verlander. He had just come off a start during which he allowed seven earned runs and couldn’t escape the fourth inning. Through his first six 2015 starts, he posted a 6.62 ERA with only 5.82 strikeouts per nine innings (K/9).

Like clockwork, he showed up to his next start in Boston and twirled a gem, throwing eight strong innings but failing to factor into the decision, as the game went into extra innings.

Then he went to Tampa Bay (well, St. Petersburg, but who’s keeping track) and cranked out another eight innings with a whopping 10 strikeouts. The last time he strung together two straight eight-inning starts was almost exactly three years ago — July 15 and 20, 2012. Last time he struck out 10-plus batters? His final start of 2013.

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Michael Wacha Has Four Above-Average Pitches

Maybe it’s just me, but it seems Michael Wacha’s solid season has largely gone unnoticed among a sea of excellent pitching performances this year. His value is largely buoyed by the win column (12) because of a relatively modest 7.61 strikeouts per nine innings (K/9), but his 3.09 ERA and 1.09 WHIP are nothing to sneeze at — they rank 21st and 18th, respectively, among all qualified starters.

Wacha has largely taken teammate Adam Wainwright’s path to success this year: walk very few batters, induce a lot of ground balls and limit hard contact. Wainright has historically been more effective in limiting baserunners — only recently did his strikeout rate fall below 8.0 K/9 — but Waino has also been around a while. He really didn’t hit his stride until his age-27 season.

Technicalities aside, Wacha and Wainwright don’t have a lot in common. Waino throws sinkers, cutters and curves; Wacha lives primarily off a four-seamer while peppering in the occasional cutter, curve and change-up. However, Wacha improved one of his secondary pitches this year, and it helped him join an elite, albeit somewhat contrived, group of pitchers.

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Three (or Four) Undervalued Starters for Your Consideration

If you sort Yahoo!’s player page descending by ownership, Justin Verlander shows up on the second page. That means, at 70-percent ownership, he ranks in the top 50. Julio Teheran shows up there, too, at 73 percent. What the two have in common: more than 1,000 other players have been more valuable than them.

Verlander deserves an ounce of clemency: his 31 innings haven’t allowed him ample time to generate value. His 6.62 ERA, sixth-worst among all pitchers who have thrown at least 30 innings, really damages his stock.

Then again, so would his 5.01 xFIP, good for ninth-worst. Or his 6.06 FIP, good for fifth-worst. He has simply done nothing to inspire confidence in anyone, yet because of name recognition alone he’s owned in far more Yahoo! leagues than the pitchers I’ll present now.

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Seven Consistent xFIP Improvers

It took a dominant 11-strikeout, zero-walk performance from Taijuan Walker for the fantasy world to finally take notice of him. I don’t have ownership trend data to exemplify this, but I do have an anecdote: he was available in every league I’m in before the start, and he was owned in every league I’m in shortly after it.

The truth is Walker had demonstrated progress, described here by Eno Sarris, in his prior four starts, notching 27 strikeouts to three walks in 29 innings. Someone who hadn’t been paying attention to Walker probably wouldn’t have noticed: his ERA prior to the recent five-game surge stood at 7.33, and he had completed the sixth inning only twice in nine games. Once a hyped prospect, he looked like a 22-year-old who still needed seasoning to reach his potential.

No longer, as you will probably have to give up an asset of value to acquire Walker from a fellow owner now. The price may not be too steep given his poor ratios (4.94 ERA, 1.39 WHIP), but this is likely the highest they’ll be for the rest of the season.

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Pitch Sequencing and Pitcher xBB%: We’re Getting There

I expected to follow up my xK% differential post from last week with a complementary xBB% differential post. For those who don’t enjoy surprises, I’ll let you know now that that didn’t happen. In its stead, I bring what I hope is good news — news that will not only influence a future xBB% differential post but also may impact general pitcher analysis henceforth and possibly international diplomacy.

The title of this post, however, is a tad misleading. I think I can say, with some degree of certainty — and I hope to demonstrate, with some degree of competency — that pitch sequencing indeed plays a role in a pitcher’s walk rate, as the devilishly handsome Mike Podhorzer has postulated. What I can’t describe, with any degree of certainty, is the magnitude of the role it plays. In truth, I desperately want to prove Mike wrong: there must be other factors, outside of pitch sequencing (and pitch framing, perhaps), that help explain a pitcher’s walk rate. For example, I have tried incorporating O-Swing% and Zone%, two PITCHf/x metrics provided by FanGraphs that I swore would fill in the cracks, but they offer little in the way of additional explanatory power.

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