Mario Impemba is part of the broadcast team in Boston now. The former TV voice of the Detroit Tigers is scheduled to work 51 regular-season games with Joe Castiglione in the Red Sox radio booth this year. The new job is different in more ways than one.

The last time Impemba did radio on a full-time basis was in 2001 when he called games for the Anaheim Angels. He did do a handful of radio games during the 2016 season — Detroit’s broadcast teams flip-flopped a few times that year — but television has long been his comfort zone. No big deal. While the mediums are different animals, the 56-year-old Detroit-area native is making a smooth segue.

“It’s kind of like riding a bike,” Impemba told me in late April. “It was seven years in Anaheim, and prior to that I did eight years in the minor leagues, so I cut my broadcasting teeth in radio. Transitioning back isn’t a big challenge. At the same time, I’m shifting abruptly after doing one medium for [17] years. It took a few games of telling myself, OK, you can’t just say ‘groundball to short; one out.’ On radio you have to describe the mechanics of the play.”

Much like the athletes making the plays being described, broadcasters have honed their skills through years and years of repetition. Be it a grounder to third or a fly to right, there is no shortage of familiarity with what’s happening between the white lines. Read the rest of this entry »

Generally speaking, doing more of one thing means doing less of another. A positive development can come at the expense of some other attribute and unintended consequences can make that positive thing decidedly less so. It’s one thing to strike out less often. Putting more balls in play provides the potential for positive outcomes. It’s another thing to strike out less often and walk more often. Doing those things in concert can have a great effect on getting on base and not making outs, which is almost always the point of every plate appearance from a hitter’s perspective. Sometimes, doing both doesn’t lead to positive results, and Rafael Devers found that out the first month of the season. Instead of going back, though, he’s moved forward and is hitting better than ever.

The 2018 season wasn’t a great one for Devers statistically. He wasn’t terrible, posting a slightly lower than average 8% walk rate and 24% strikeout rate, as well as better than average power with a .193 ISO, but a .281 BABIP meant a .240 batting average a sub-.300 on-base percentage and a below-average 90 wRC+. In his 2017 debut, Devers’ numbers were mostly the same, but a .342 BABIP meant a 110 wRC+. The Statcast data indicates that the difference between 2017 and 2018 was mostly luck, and Devers’ batted ball profile in terms of ground balls, line drives, and pulled balls were all pretty similar in 2017 and 2018, giving credence to Devers being a bit lucky in 2017, with 2018 his natural level if all else remained the same.

Devers wasn’t content with remaining the same, so he spent the offseason working on his weight and now focuses more on not striking out and incorporating video of pitchers in his preparation. While all those changes are admirable, they failed to make a difference the first month of the season. On April 25, Devers had completed 101 of his 201 plate appearances this season. True to his word, Devers struck out a lot less, lowering his strikeout rate down to 16% on the season and saw his walk rate rise to 12%. Devers also saw his BABIP rise to .338 so the lowered strikeouts and increased walks caused his batting average to stand at a healthy .276 with a very good .370 OBP. Unfortunately, Devers had yet to hit a home run and only had six doubles, leaving his ISO at a meager .069 and his wRC+ right at 90, the same as where it was the previous season. Read the rest of this entry »

At some point during the baseball season, it’s no longer “early.” I think you know exactly what I’m talking about. When an unexpected team starts out hot — a la the Mariners, who started 2019 on a 13-2 tear — the response of most rational baseball fans is that “it’s early.” For Seattle, the idea that it was far too early to evaluate the true talent level of the team was absolutely correct. From April 12 on, the Mariners are 10-26 and have sunk to last place in the AL West. Natural regression happened.

Because of the randomness and variation that often does occur during small samples within the marathon baseball season, it’s an old adage to avoid checking the league standings until Memorial Day. Clearly the idea behind this theory is that around Memorial Day, every team has played at least a quarter of their season. With that in mind, the results we have witnessed thus far become significantly more meaningful, and it’s no longer “early.”

I decided to set out and check this theory. Just how accurate are the standings on Memorial Day? Is there hope for a team like the Nationals, who have struggled thus far but still remain a talented squad on paper, to come back? Let’s break down the general trend while also talking about some of the biggest outliers (in both directions) in recent memory.

My process for this study was fairly simple. I collected every team’s record on Memorial Day from 2010 to 2018 and compared it to their record at the end of the season. This gave me a sample size of 270 baseball seasons, all of which occurred in relatively recent memory. I plotted the results in a scatterplot, and here it is:

There’s a pretty strong linear correlation here, evidenced by our r-value of 0.756. The r-squared value tells us that the regression equation for Memorial Day winning percentage accounts for 57.1% of the variability in the end-of-season winning percentage. This means that 42.9% of the variability is still unaccounted for, so while Memorial Day certainly tells us something about a team’s end-of-season record, there’s still so much that can change between now and October. This conclusion is what I’d expect. Read the rest of this entry »

The list of players who have struck out 15 batters without allowing a walk in a shutout is a small one. So small that I can list them here in chronological order: Van Mungo, Luis Tiant, Dwight Gooden, Roger Clemens (twice), Kerry Wood, Randy Johnson, Pedro Martinez (twice), Erik Bedard, Clayton Kershaw, Max Scherzer, Vince Velasquez, Jon Gray, and Shane Bieber. The Cleveland right-hander became the first pitcher since 2016 to accomplish the feat when he struck out 15 Orioles over the weekend. Perhaps the effort comes with a caveat because it was Baltimore, although the club’s 24% strikeout rate is middle of the pack and there are five teams with a wRC+ lower than the 83 currently sported by the Orioles. Bieber surprised with a strong performance last season and he looks even better this year thanks to some changes he’s made to miss more bats.

Bieber came into the league as a command artist. He doesn’t have a great fastball, but he locates it well and has a very good slider. This is what Eric Longenhagen had to say about Bieber heading into last year:

Bieber works away from righties, using his fastball and slider in sequence very effectively. He locates his slider in a spot that is equal parts enticing and unhittable, and this trait runs through a lot of the pitchers who exceed scouting expectations and make a big-league impact with just solid stuff. It’s an above-average pitch on its own but garnered an elite swinging-strike rate last year. The stuff, alone, projects to the back of a rotation, but Bieber’s ability to locate gives him a chance to be a mid-rotation arm. It’s possible he has elite command and becomes something more.

Last season, after walking seven batters in 13 minor league starts, Bieber came to the majors and continued his stingy ways by walking only 23 batters in 114.2 innings. His 3.23 FIP was great, but a .356 BABIP meant his ERA was considerably higher at 4.55 and probably raised concerns that his fastball was a bit too hittable despite good command. Nine of his 13 homers came against the fastball, and batters had a 146 wRC+ against the pitch a season ago while he threw it nearly 60% of the time. Bieber paired that fastball with a nasty slider and solid curve. He threw an occasional changeup, but it wasn’t a very good pitch. Read the rest of this entry »

The book on Luke Weaver was written before he had played a game of professional baseball. Great changeup, good fastball, no third pitch. I mean “the book” metaphorically here, but I also mean it literally. Here’s Eric Longenhagen on Weaver before the 2017 season:

“Those who have questioned Weaver’s upside (myself included) did so because, in college, he lacked a good breaking ball. Weaver’s fringey curveball remains so today, but he’s a good athlete who has developed plus command and added an average cutter to his repertoire in pro ball.”

Cardinals fans got two years of data to back up that assessment — a scintillating 2017 (3.17 FIP, 28.6% K-rate) and a frustrating 2018 (4.45 FIP, fewer strikeouts and more walks) were worth a combined 2.7 WAR, but between underperforming his FIP and losing his rotation spot in the second half of 2018, Weaver felt like a surplus arm. The changeup and sneaky good fastball were as good as advertised, but batters consistently teed off on his curve. When Weaver and top catching prospect Carson Kelly were sent to the Diamondbacks in exchange for Paul Goldschmidt, it felt like a needed change of scenery for both of them.

If the book on Weaver was written while he was still in college, it’s a safe bet that he’s had time to read that book. He has worked towards developing a better breaking ball more or less every offseason of his pro career, and 2019 was no exception. This time, though, he had technological help. He bought a Rapsodo, a portable pitch-tracking camera, and used it to work on his curve. He took his cutter (or is it a slider?) out of mothballs, telling David Laurila he was picking up the hybrid pitch after years of being mainly fastball/change/curve.
Read the rest of this entry »

Michael Pineda has always had a bit of a weak spot in his pitching profile. From his debut in 2011 until his 2017 ended with Tommy John surgery, he threw 680 innings while allowing 91 total home runs. That translated to a 1.20 HR/9, putting Pineda in the bottom 20th percentile in the league among pitchers with at least 650 innings pitched.

Despite the eye-catching rate, the home runs were a manageable issue; Pineda’s FIP in those years was a fine 3.60. More than avoiding home runs, Pineda needed the health he enjoyed between 2015-16 to be an average starter. Even setting aside the Tommy John, his time in the majors is riddled with stints on the disabled list for a variety of maladies. Now in 2019, with the health of his arm finally restored, the home run issues looms larger.

After his first nine starts of the year, Pineda is leading the majors in home run rate among qualified pitchers with a 2.49 HR/9. Following his last start, he became the first Minnesota Twins pitcher to allow at least three home runs in consecutive outings since Bartolo Colon in 2017.

This is still a small sample, and Pineda’s home run rate will probably go down as he keeps pitching. However, given his previous home run issues, the recent spike merits a closer look.

First, let’s examine his fastball. Of the 13 home runs he has allowed this year, six have been against fastballs in the middle or upper part of the zone. Pineda has always liked to throw his fastball in the zone, challenging hitters with good gas, and he has been doing exactly that this year. Read the rest of this entry »

When the Red Sox called up Michael Chavis on April 19, they were 6-13 and had no shortage of troubles. Every member of their rotation save for David Price was regularly being lit up like a pinball machine, and their no-name bullpen was shaky as well. Reigning AL MVP Mookie Betts was hardly himself offensively, and both Jackie Bradley Jr. and Steve Pearce were impossibly cold. Amidst all of that, the team’s hole at second base was just one more problem, albeit similar to last year, when even replacement-level play in the absence of the injured Dustin Pedroia did little to prevent them from winning a franchise-record 108 games as well as the World Series.

Just over one month since Chavis’ arrival, the Red Sox are now over .500 (25-22). Their pitching has come around, as has Betts, and their leading hitter in terms of both slugging percentage (.592) and wRC+ (156) is Chavis, a 23-year-old righty-swinging rookie with “a bit of a beer-keg physique” (h/t Baseball Prospectus), one who had never played second base before this season. His nine homers (in 113 PA) is tied with J.D. Martinez for second on the team behind Mitch Moreland’s 12. He homered in Boston’s wins both Sunday against the Astros and Monday against the Blue Jays. Here’s the former, in which he drove a Wade Miley cut fastball 420 feet, a towering shot over the Green Monster:

Long blasts are hardly a rarity for Chavis. Despite his late arrival, he’s tied for fourth in the majors with six homers of at least 420 feet, and he had another estimated at 419 feet. His average home run distance of 426 feet ranks seventh among players with at least 50 batted ball events (he has 68). Monday’s 389-footer off of the Blue Jays’ Edwin Jackson was just his second homer shorter than 400 feet.

Two months ago, Chavis barely registered as a player likely to make an impact on the 2019 Red Sox, in part because he had just eight games of Triple-A experience to that point along with 100 games at Double-A. Our preseason forecasts estimated he’d get just 14 big league plate appearances. Now he’s one of the players who has helped to salvage their season. So what gives? Read the rest of this entry »

It was rainy, it was short, and yet, it was the first time in 382 games that a Chicago White Sox pitcher had recorded a complete game.

On Saturday, in an effort that required just 78 pitches, Lucas Giolito became the first White Sox pitcher to throw a complete game since Chris Sale on September 16, 2016. He allowed just one run on three hits and struck out four.

The catch? Let Giolito explain it himself. As he told NBC Sports Chicago after the game, “I don’t consider it a complete game until I get nine.” Indeed, Giolito’s effort to snap a long stretch of bullpen usage was only five innings long. The game only lasted an hour and 31 minutes, if you choose to exclude the three-hour delay. A rain-soaked Chicago took care of the rest.

What’s lost in this whole story is that Giolito was solid on Saturday yet again. He’s had an up-and-down career so far, from being the Nationals’ prized pitching prospect to struggling in his first taste of the majors in 2016 to being the centerpiece in the Adam Eaton trade to posting the worst K-BB% among starters last year. But in Saturday’s start, never mind its length, Giolito lowered his ERA to 3.35. His 3.00 FIP is sterling. His 1.3 WAR in just 43 innings represents a 1.7-win improvement over his career total entering this season.

In sum, Giolito went from being league-worst to pretty, pretty good. The next step — the excellence — still comes in flashes, as it often has over his young career. Since the start of May, Giolito has posted a 1.85 ERA with 27 strikeouts to just eight walks over 24.1 innings. By WAR, he’s been the eighth-best starter this month. Read the rest of this entry »

The Mets were one of the more active clubs this offseason, pulling off a big trade for Robinson Cano and Edwin Diaz while signing Wilson Ramos, Jeurys Familia, and Jed Lowrie to free agent contracts. Through 46 games, the team is just 21-25, and multiple reports calling manager Mickey Callaway’s job “safe” have been issued, including a team meeting with GM Brodie Van Wagenen, which is never a good sign. The team had lost five straight games before their win last night, including a three-game sweep to the lowly Marlins despite both Jacob deGrom and Noah Syndergaard pitching in the series. The final two games saw the team shut out offensively. There’s something wrong with the Mets, and a lot of people are at fault.

During the course of a 162-game season, there are going to be stretches where teams don’t play well. The Mets getting swept by the Marlins looks pretty bad because it just happened, but bad teams sweep good teams a fair amount during the season because three games represents less than two percent of the season. The Mets are at 21-25 — fewer wins than they would like — but keep in mind, what the Mets are doing now isn’t a massive departure from the team’s projections at the beginning of the season. This is what our playoff odds projections looked like before the season started.

Read the rest of this entry »

Things didn’t exactly go his way on Saturday, but Ryan Feierabend’s start for the Blue Jays against the White Sox — a four-inning stint that resulted in defeat — was noteworthy, not just the kind of thing you don’t see every day, but the kind of thing you don’t see every decade. Not only had Feierabend, who began throwing the knuckleball during a four-year stint in the Korea Baseball Organization, not started in the majors since September 23, 2008 (when he faced the Angels’ Vladimir Guerrero, ahem), or appeared in a major league game since July 27, 2014, but it had been nearly 19 years since a left-handed knuckleballer pitched in the majors, and more than 20 since the last one made a start.

As I noted in February, when the 33-year-old Feierabend, who found little success in parts of four major league seasons before going to Korea, signed with Toronto, the practice of throwing the knuckleball has fallen upon hard times during the pitch-tracking era:

Last year, Boston’s Steven Wright was the only pitcher (as opposed to the occasionally dabbling position player) to throw a knuckleball, but between complications stemming from left knee surgery and a 15-game suspension for violating the league’s domestic violence policy, he threw just 53.2 innings. As he’s currently serving an 80-game suspension for a PED violation — making him the first major leaguer to attain that dubious dual distinction — the pitch needs a new champion. Enter Feierabend, who by virtue of even one appearance resurrected a long-dormant line. Read the rest of this entry »