Sonny Gray Is Almost Unarmed

Yesterday’s big news was that the Nationals agreed to a long-term extension with Stephen Strasburg. So that’s exciting for him, and for them, but you always have to think about the side-effects of these things. Several people pointed out that, without Strasburg, the upcoming pitching market sucks. And several people also pointed out that, with Strasburg locked up, this puts Billy Beane in a better position with regard to Sonny Gray. There’s just the one problem right now: Sonny Gray hasn’t been very good.

He’s far from the only ace who’s had his struggles. If you look at all the qualified starters and sort by ERA, you see David Price at an unbelievable 6.75. There’s Adam Wainwright, with an uncharacteristic 6.30. Gray is hanging out at an even 6.00, after getting tattooed by the Red Sox. Every slump is accompanied by a search for explanations. Seems to me the explanation for Gray is that he’s been pitching without his best weapon.

Over and over, Gray has insisted he feels great. It’s what’s made this all the more perplexing — we can’t chalk anything up to illness or discomfort. Not that Gray couldn’t be lying, I guess, or not that there couldn’t be something subtle underneath, but he feels good, and his velocities are good. His arm slot is normal. The worry is always injury. I get it, but injury isn’t always the root cause for something. More common, I believe, is a mechanical slump. That’s my guess on this one.

And whatever it is, it’s costing Gray his breaking ball. The breaking ball is what made Gray an elite-level prospect. The breaking ball is what allowed Gray to become staff ace at a young age. He’s still using it, because he still needs to use it, but Gray has been missing his usual feel, and that’s something he needs to straighten out.

Gray told Eno a while ago that he sort of has one breaking ball and two breaking balls. He has one grip, but he’s had a tighter breaking ball and a slower breaking ball. One that looks more like a slider, and one that looks more like a curveball. Consider now the following plots, showing Gray’s breaking-ball velocities and spin axes over the past three years. Something should jump out to you.

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It used to be easy to identify two groups. There was the harder, slider-y one, and the slower, curvier one. Last year, the groups came together a little, but this year the situation is different. This year the slider-y cluster has mostly gone away. When Gray has gone to his breaking ball, he’s mostly thrown the curveball version, and since the slider version has been good for him before, that doesn’t seem like it should be something planned. It seems like Gray hasn’t been comfortable mixing up his arm actions.

And the breaking ball that Gray has thrown hasn’t behaved like he’d like. These are some heat maps from Baseball Savant. Gray’s struggles have been ugliest against right-handed hitters, and these plots show something dramatic. Here are Gray’s breaking-ball locations against righties, since 2014:

This year has been a mess. It’s one thing to throw breaking balls just off the plate, or just barely out of the zone, but Gray’s location has been way off. It seems like he’s been holding the ball too long, resulting in a bunch of pitches so low they can be mentally eliminated. Now, breaking balls below the zone are better than breaking balls left hanging, but if as a hitter you see that Gray isn’t controlling his breaking ball well, you can hunt for that fastball. And, mostly, the fastball has gotten hit. Last year, by our run values, Gray’s fastball was worth 16 runs better than the average. This year he’s already almost at -5.

And the breaking ball is worse, of course; it’s gone from +14 runs to zilch. The breaking ball hasn’t been directly punished, but because Gray hasn’t thrown it for strikes, it’s allowed the rest of the repertoire to get punished. This is a great example of the cascading effect of one pitch going from a zone rate of 41% to a zone rate of 28%. Everything works together, and if you take away a key component, the whole structure can collapse.

In Gray’s defense, he’s probably been a little better than a 6-flat ERA. The A’s haven’t given him too much defensive support. And against the Red Sox on Monday, Gray got his breaking ball up a little more, but his control was still off, and lifting his breaking ball caused him to also lift his fastball. It was an attempt, but it wasn’t a solution. Gray’s still searching for his solution, which is probably a minor tweak or two away.

I don’t know what those tweaks are. And I can’t promise that this isn’t because of some physical malady. I just don’t want to assume injury without any other signs. When it’s not injury, the explanation is usually that the mechanics are off, somewhere, somehow. Gray’s mechanics have cost him the breaking ball that for the most part put him on the major-league map. Pitchers tend not to suddenly lose their best weapons for good, but when they go into hiding, there’s not much left for a pitcher to work with.





Jeff made Lookout Landing a thing, but he does not still write there about the Mariners. He does write here, sometimes about the Mariners, but usually not.

21 Comments
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mattMember since 2023
10 years ago

I remember when Sonny Gray couldn’t strike anyone out in the Texas league, now this is 99.99% chance not related but just shocked at how much early success he had. Gray will most likely be fine but not great timing for the A’s

rfs1962
10 years ago

So he needs to straighten out his breaking ball.

Forrest Gumption
10 years ago

As someone who never misses his starts, it’s 100% mechanical flaw. Happens to everyone, he just needs to watch some video and find out what he’s doing now vs. last season. He still looks fine otherwise, until his breaking ball hangs up in the zone, then its homer time.

Definitely helps the A’s in terms of teams wanting to trade for him – you would think. But this is the same Beane who actually wanted Graveman and Nolin instead of Stroman for a trade for one of the most elite players in the game. So if anyone is capable of making a horrible trade, it’s him. He does make good ones, but not getting Stroman, Lawrie & Barreto for Donaldson is his worst.

BipMember since 2016
10 years ago

Four players is more than three dude, check the math

Johnston
10 years ago

Then there’s the Addison Russell trade, which infuriates me every time I think about it.

free-range turducken
10 years ago

Wow. Pete Gray was only 50% unarmed!

Sleepy
10 years ago

There’s a Dave Dravecky joke in here somewhere, too…

TheGoodDoctor81
10 years ago
Reply to  Sleepy

Aw, snap!

steex
10 years ago

I think Jim Abbott would give you a hand for that comment. Not two, though.

'Tungsten Arm" O'Doyle
10 years ago
Reply to  steex

On a scale of 1 to 10, these deserve a 12 for tastelessness.

Johnston
10 years ago
Reply to  steex

Abbott is too busy trying to find a second hand store.

Dick Monfort
10 years ago
Reply to  steex

I think I heard that one before. Can’t put a finger on who said it though.

JBurgers
10 years ago

How did Strasburg signing an extension help Billy Beane’s situation with Sonny Gray?

TheGrandslamwichMember since 2026
10 years ago
Reply to  JBurgers

Basic supply and demand. Fewer pitchers on the trade block.

vonstott
10 years ago

<> Having Strasburg off the market helps Gray, not Beane.

What potentially helps Beane is that he has a reasonable contract for a better pitcher to point to as a comparison. OTOH, Gray’s agent should just shrug and say, “So?”

Charlie HustleMember since 2016
10 years ago
Reply to  vonstott

Gray becomes eligible for arbitration next year. He will get 3 bites of the apple (I think). Strasburg’s signing has essentially no impact on Gray, who is several years away from free agency. The As are a bad team. They are the type of team that would rather trade a player like Gray than pay an arbitrated salary or try to negotiate a long-term contract with 3 years of control remaining…and that is what they have done in the past. Trade for prospects.

Strasburg’s signing mostly affects next year’s free agent market, which only affects the buyers during that period. Bean, as a seller, has a stronger negotiating position with fewer remaining options available to the buyers. Strasburg’s signing will not impact what Gray makes through arbitration. The only way that it might help Gray is if he could persuade the team that controls him (probably not the As) to negotiate a long term extension while he is under team control and while the market is still barren.

JBurgers
10 years ago

Gotcha – I originally understood the context to be that the Strasburg signing “puts Billy Beane in a better position with regard to Sonny Gray [signing an extension]” instead of “puts Billy Beane in a better position with regard to [trading] Sonny Gray.”

In the context of supply and demand, the former interpretation does not make sense, but he latter does.

Johnston
10 years ago
Reply to  JBurgers

Next year’s free agent pitchers are…well, let’s just say that it’s a small and shoddy list compared to previous years.

tfranco
10 years ago

I wouldn’t say his velocities are okay. I recall an interview with Curt Schilling where he said one thing he likes looking at is a pitcher’s peak velocity. With that in mind I look at Sonny Gray’s starts in 2015 and 2016.

From May-July, Gray average around 25 pitches of 95MPH or faster.
From August onward he averaged less than 5 with never throwing more than 2 in any of his last 4 starts.
In 2016 he has only thrown 5 pitches that hard.

Travis LMember since 2016
10 years ago
Reply to  tfranco

Based on pitcher aging curves [0] [1], velocity does not seem to be the issue in the general case.

[0] http://www.beyondtheboxscore.com/2014/2/25/5437902/pitching-aging-curves
[1] http://cdn.fangraphs.com/blogs/wp-content/uploads/2012/04/Pitcher_Curves_All1.png

Walter
10 years ago

“It seems like he’s been holding the ball too long, resulting in a bunch of pitches so low they can be mentally eliminated. ”

He is doing that or at least sort of. His release point has been dropping a long with his velocity the last calendar year:

http://www.brooksbaseball.net/velo.php?player=543243&b_hand=-1&gFilt=&pFilt=FA|SI|FC|SL|CU|CS|KN|CH|FS|SB&time=month&minmax=ci&var=z0&s_type=2&startDate=03/30/2007&endDate=05/11/2016