“I had a good year last year, but this year I wanted to separate myself,” Kevin Kiermaier told me in August before a game with the Athletics. And separate himself he did, since he just won a Gold Glove after leading all defensive players in the SABR Defensive Index rankings, UZR/150, and Defensive Runs Saved. We talked about how he honed his craft on the way to the defensive triple crown, and it’s a little bit instincts, a little bit scouting, and a little bit athleticism.

This year, Kiermaier he’s one of the few outfielders to have had a nearly-perfect route (99% efficiency) according to Statcast. Some of that is just gut. “I just let my instincts take over out there, as well,” the Rays’ center fielder said. “That’s something I’ve always been blessed with, I just feel like I have a really good idea of where the ball’s going to be hit.”

But press him a little on that, and there are a few things he does in order to help get into the right routes. He reads the catcher’s signs, for one, so that he can anticipate better where the ball is going. “I can see them usually from center field, since I have good vision,” he said. “I can see what pitches are going to be thrown, and I feel like I can get a head start on what direction that ball is going to be hit.”

Read the rest of this entry »

Baseball’s hot stove season got off to an uncharacteristically early start this time around, as the Rays and Mariners made a “challenge” type of trade, centering around two young, inexpensive players with plenty of years of control remaining, shortstop Brad Miller and starting pitcher Nate Karns. I agree with most of Dave Cameron’s thoughts in the immediate wake the trade: one’s opinion of this deal largely depends on whether one believes Miller is truly a regular shortstop, and whether ones believe Karns is a long-term rotation fixture.

While there are no absolutes in the projection of either player’s future, and there are other players in the deal who will eventually impact the net result, this trade will likely come down to Miller vs. Karns. What does the weight of the evidence suggest at this point in time regarding those two players?

Read the rest of this entry »

No, we aren’t just going to do a leaderboard sort for best movement in each direction and call it a day. It’s a little bit more complicated to figure out the best changeups by shape and speed, mostly because it’s all relative. The changeup, as the name implies, functions off of the fastball, as a change of pace and movement. So we need to define anything the changeup does relative to the pitcher’s fastball.

Then we can do a sort and call it a day.

In order to define fastball movement, let’s just group together all of the fastballs thrown by a pitcher. It’s probably more nuanced than that; the concept of tunneling or sequencing shows that pitchers can pair their changeup with one fastball or the other for different results. But some of this comes out in the wash: by averaging movement across fastballs, their selection of different fastballs will weight the movement in the direction of the pitcher’s usage.

So then our x and y movement, and velocity, are defined against this average fastball for each pitcher. Using a minimum of 50 changeups thrown, and z-scores to sum up the values, we can get a list of best changeups quickly.

First, the relievers.

Best Reliever Changeups by Movement, Velocity

Pitcher	FB (pfx_x)	FB (pfx_z)	FB (velo)	CH (pfx_x)	CH (pfx_y)	CH (velo)	Sum Z	CH swSTR%
Brad Boxberger	-3.3	10.6	92.6	-7.8	2.0	79.8	6.7	14%
Shawn Tolleson	-2.6	11.0	92.9	-4.8	4.0	79.8	4.9	15%
Josh Fields	0.1	11.5	94.1	-0.6	3.7	81.4	4.5	8%
Roberto Osuna	-4.2	10.7	95.5	-8.0	6.9	82.3	4.0	16%
Josh Smith	-4.1	7.6	89.9	-8.4	1.9	79.4	4.0	8%
Chasen Shreve	7.3	10.6	91.4	6.3	1.5	82.6	3.5	18%
A.J. Ramos	-3.0	8.6	92.4	-7.5	1.0	85.5	3.5	35%
Jeff Ferrell	-4.1	10.2	93.0	-7.4	4.9	82.4	3.5	20%
Danny Farquhar	-5.0	8.5	92.7	-7.5	1.0	84.5	3.2	24%
Fernando Rodney	-6.7	7.1	94.7	-9.6	3.3	82.7	3.1	17%
Andrew Schugel	-7.9	7.8	91.6	-9.6	2.3	80.5	3.1	23%
Joaquin Benoit	-6.5	8.9	94.2	-7.5	1.9	84.1	3.1	24%
Tyler Thornburg	-0.8	11.1	92.2	-5.8	6.3	83.8	3.0	19%
Arnold Leon	-5.1	9.8	91.6	-4.6	2.8	80.2	2.9	22%
Pat Neshek	-8.5	4.9	89.9	-4.6	3.7	68.4	2.9	9%
Tommy Kahnle	-1.9	7.4	94.8	-7.6	2.8	87.2	2.8	23%
Mike Morin	-4.7	8.9	92.3	-0.5	6.8	71.7	2.8	25%
Deolis Guerra	-5.1	10.0	90.8	-6.7	4.0	80.7	2.8	15%
Daniel Hudson	-6.6	8.3	96.0	-9.9	4.9	84.8	2.7	18%
Erik Goeddel	-3.9	9.2	93.0	-4.7	2.0	84.3	2.5	32%

SOURCE: PITCHf/x

pfx_x = horizontal movement
pfx_z = vertical movement
Sum Z = sum of the z-scores for the differentials between fastball and changeups in x, y movement and velocity
swSTR% = swinging strikes over pitches for the changeup
Minumum 50 changeups thrown in 2015

If you listen to The Sleeper and The Bust, you know I talk about this all the time and do the math in my head. Now the math is there for us on the sheet of paper.

Read the rest of this entry »

Four days. It took MLB all of four days to bring us the first transaction of the off-season, as the Mariners and Rays got together on a six player trade that ships some interesting players in both directions. The full trade, as announced on Thursday evening.

Tampa Bay receives:

SS Brad Miller
1B Logan Morrison
RHP Danny Farquhar

Seattle receives:

RHP Nate Karns
OF Boog Powell
LHP C.J. Riefenhauser

While this is a six player deal, for simplicity, we can mostly break this down into three one-for-ones.

Read the rest of this entry »

On Aug. 22, Tampa Bay left-hander Matt Moore reminded everyone of how excellent he can be. Once a consensus top-three prospect (alongside Bryce Harper and Mike Trout), Moore was dominant. In six innings, he recorded 16 strikeouts — 13 of which came in a stretch of just 15 batters. He allowed a single run. But there’s one problem: Moore was pitching for the Durham Bulls, in a game against the Columbus Clippers.

Sad puppies.

At a point earlier in his career, Matt Moore had been an All Star; now he was in Triple-A. Why? Well, since returning from a Tommy John procedure that limited him to just two appearances in 2014, he had been, to put it not nicely but succinctly, putrid. Moore made his season debut in Tampa on July 2. Since (and including) that time, he’d made six major league starts, giving up 26 runs (all earned) in 26.2 innings. Lest you think this was a function merely of batted ball luck, consider: over those 26.2 innings, Moore had struck out 17, walked 13, and gave up four homers as well. The Rays sent him to Durham.

Moore had been an ace starter before having the surgery two starts into the 2014 season, but six starts into his return he hardly looked the part (and two starts following his return from the majors haven’t offered any counterarguments to that point). I’m not sure what Tampa’s expectations were for him, but the often less-grounded expectations of fans and media were that he’d step back into his previous role in front of the Tampa rotation, thereby forming an unbeatable duo of awesomeness (potentially with capes!) with Chris Archer. But so far it hasn’t happened. Can Matt Moore be an ace again? Was Matt Moore ever an ace? Do capes help you pitch? Why questions? How about answers!

Read the rest of this entry »

Talking to Erasmo Ramirez is refreshing. He always has a smile on his face. Life is fun for him — especially now. He’s having the best season of his career in Tampa Bay. It turns out that changing the use of his slider has been a big part of that success. And certain aspects of his slider may provide a roadmap for other pitchers that should make the same move.

His best pitch is his changeup — “it’s the best one to take me out of troubles,” the pitcher admitted to me — but it’s not good enough to throw every single time. “I try to stay away from it, and show the hitters I’m going to throw every pitch I have in my arsenal,” Ramirez said of his pitching mix.

The grip for the change thrown by Erasmo Ramirez, which has the seventh-best swinging strike rate in baseball (min. 400).

The breaking balls haven’t been great. Even as Tony Blengino waxed positively on the pitcher recently, he admitted that “his breaking balls needed reps” coming up. Ramirez this year has been using his curve less (“I’ve been trying to stay away from it, unless I have it rolling.”) but a key change in his slider usage has been huge.

Read the rest of this entry »

Just in case, let’s get this out of the way early: Kevin Kiermaier is the Rays’ center fielder. You probably already knew that, but you can never be too safe. Kiermaier is considered by everyone to be something of a defensive whiz. They say you’re supposed to open with a joke. Here’s a funny picture that proves even a defensive whiz can end up in a humiliating screenshot:

There’s a perfectly good explanation for what happened that relieves Kiermaier of pretty much all blame, but it’s more fun if you don’t know. Look at that guy! What a silly person.

Realistically, for the hitter, it’s probably a good thing that what happened happened. Spoiler alert: By rule, the hitter was awarded a home run. Had a physical structure not interrupted the flight of the baseball, there’s a decent chance Kevin Kiermaier would have, a few seconds later.

Major League Baseball fans were first introduced to Kiermaier late in 2013, when the Rays called him up for tiebreaker game 163, and the AL Wild Card Game. Kiermaier wasn’t promoted to serve as some sort of dangerous slugger off the bench. Nor was he around to be a potential pinch runner. Kiermaier was brought up specifically for his outfield defense. The Rays knew it was a little crazy, but they thought Kiermaier was the best defensive outfielder in the organization, so it wasn’t hard to talk themselves into it. Kiermaier played an inning in the first game. He played two in the second. That was it. Over the winter, Baseball America called Kiermaier the No. 10 prospect in the system.

Some prospects go away. Some hype proves to be unjustified. I don’t think it would’ve been a shock had Kiermaier never shown up again, or had he been limited to a bench role. But he wound up playing 108 games last year as a rookie, and he’s already close to 130 as a sophomore. Kiermaier’s bat has developed enough for him to play nearly every day. And because he’s played so often, we’ve seen ample evidence of his defensive skill. The Rays, back then, were on to something. I’m obligated to share some defensive highlights. The hardest thing is picking.

Read the rest on Just A Bit Outside.

Two seasons ago, I ranked the job security of each general manager and listed GM prospects. I think I did a pretty good job with both lists given what we knew at the time, and may do it again as Opening Day 2016 closes in. We’ve had less executive movement in the last few off-seasons than usual and it looks like the regression is happening this year, with four GM jobs currently open and a likely fifth coming soon. This seemed like a good time to cover each of the situations in flux and target some possible changes in the near future, along with some names to keep in mind as candidates to fill these openings.

The Open GM Spots
We have two teams without a top baseball decision-making executive, in Seattle and Milwaukee:

Mariners
The Mariners moved on from (now former) GM Jack Zduriencik recently, a long-rumored move that club president Kevin Mather admitted he waited too long to execute. Mather has said they’re looking for a replacement sooner than later (likely eliminating execs from playoff teams), with GM experience (eliminating most of the GM prospects you’ll see below), and that the team doesn’t require a rebuild (meaning a shorter leash and higher expectations from day one). This should prove to narrow the pool of candidates a good bit, but this is still seen as the best of the currently open jobs.

Read the rest of this entry »

Amid the ever-increasing dominance of pitching this season, Chris Archer has been a singular figure among the leaderboard of best pitchers during 2015: he’s not only a newcomer to the best handful of starters that populate baseball, but he’s also gotten to where he currently is in a rather unique way. In late April, I noticed that Archer was now throwing his slider almost 40% of the time and getting incredible results from it; in May, Carson noted that Archer was in a select group that blended an elite ground-ball rate with an elite strikeout rate; and, in early June, Dave wrote that Archer’s slider was now being thrown much harder, at upwards of 90 mph, making it an almost totally unfair pitch.

Archer has truly found himself as an ace this season, and last night, he turned in the best performance of his young career.

Unsurprisingly, the Rays’ right-hander pitched his complete game, one hit, one walk, 11 strikeout, 98-pitch performance in the method he has come to rely on this season: an overpowering fastball coupled almost exclusively with an unfair slider. Archer threw a Maddux, and he did so in historic fashion, compiling a Bill James game score of 95 along the way. The only other pitchers to throw a complete game with under 100 pitches and a game score of at least 95? I’ll let our friend Kazuto answer that:

Maddux with a 95+ game score: Koufax no-no vs Philly Cone perfect Bunning perfect Humber perfect (LOL) Rogers perfect Archer tonight

— Kazuto Yamazaki (@Kazuto_Yamazaki) August 21, 2015

That’s a lot of perfect games and one no-hitter on that very short list, which tells us just how good Archer was last night. He was this close, in fact, to a no-no:

Read the rest of this entry »

Every year, a number of starting pitchers seemingly come out of nowhere to become significant contributors at the major-league level. Sometimes, like in the case of Jacob deGrom, the sudden evolution is real and sustainable. In the case of the majority of short-term success stories, the league adjusts, the pitcher can’t respond to those adjustments, and he disappears from the major-league scene or he settles into a lesser role.

Earlier this week, we took a look at one such pitcher who got off to a fabulous start this season before crashing to earth: the Seattle Mariners’ Mike Montgomery. Today, we’ll take a look at the player dealt to the Rays by the Mariners for Montgomery at the end of the past spring training, right-hander Erasmo Ramirez. The 25-year-old was pummeled beyond recognition in his first two outings as a Ray, but has quietly fashioned a very nice season in Tampa, with a 10-4, 3.57, traditional line at present. Have the Rays uncovered a low-cost, high-performance starting pitcher, as they have so many times in the past? Or is it a matter of time until he starts being pounded on pitches in the fat part of the zone, as he did for much of his tenure in Seattle? Let’s take a look at Ramirez’ 2015 batted-ball data and make some observations.

Read the rest of this entry »