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The best word to describe how teams are approaching the 2021 draft might be “uneasy.” Teams lean hard on things like the Cape Cod League and summer high school showcases, which the industry lost in 2020 due to the pandemic. Track records of performance are hard to come by because of it (as well as other factors), and teams are desperate for anything resembling a sure thing.

Entering the season, Vanderbilt right-hander Kumar Rocker looked like one of these few sure things. A highly regarded prep arm out of Georgia in 2018, he might have slipped into the first round that year had he not made it abundantly clear that without an elite bonus offer, he had every intention of honoring his college commitment. He’s succeeded since arriving in Nashville, stepping right into the weekend rotation and throwing a no-hitter in Super Regional Play as a freshman. With athletic bloodlines and the much-desired combination of above-average stuff and command, Rocker entered the season as a strong candidate to be selected by the Pirates with the No. 1 pick come July.

He’s certainly held up his end on a performance level. Through 13 starts for the Commodores, he’s struck out 118 over 81 innings and allowed just 47 hits and 25 walks. But on a stuff level, it’s been a different story, as the average firmness of Rocker’s fastball has ranged by as much as six miles per hour on average from one start to the next. He is still expected to be a top-five pick at minimum, and that 1–1 slot is in play for him as well, but for teams looking for consistency, the varying fastball is a bit troubling. For teams looking for answer as to his ability to handle a pro workload, it’s even more so.

Read the rest of this entry »

If you are a regular FanGraphs reader, chances are that you’re aware of the rise in strikeouts across the majors. At this point, bemoaning the rise in strikeouts is an essential component of the baseball media apparatus. Every season is accompanied by pieces on the subject. I found this type of article going as far back as 2013, and they have been especially prevalent in recent seasons. It seems to be a rite of passage to put out a piece on the increasing strikeout rate, so as a newly minted member of the baseball writing community, here is my entry in the genre.

For context, the league-wide strikeout rate has increased every season since 2005, when it sat at 16.4%. In 2021, that figure has risen to 24.1%. That is a 47% increase in 16 seasons. Not only has the strikeout percentage monotonically increased, but the rate at which it is increasing is growing. From 2005-09, the rate increased by 9.7%; from 2010-14, 10.3%. In the most recent five seasons, the strikeout rate increased by 11.6%.

The question is always who and what is driving this phenomenon, and the answer is almost always “well, there are a few factors at play.” One angle that I thought has been under-researched is hitter behavior with two strikes. You may have heard your favorite local newspaper columnist bemoan the idea that hitters do not have a two-strike approach anymore, that all they try to do is hit home runs, which has led to all the strikeouts. Of course, this type of thinking is reductive, mostly because it does not even consider the role of the pitcher. Nevertheless, many have discussed two-strike results, though more anecdotally than quantitatively. So let’s investigate this aspect of the strikeout rate problem first. The following is the strikeout rate and wOBA in plate appearances that reach two-strike counts in the Statcast era:

Like the overall strikeout rate, the strikeout rate in these plate appearances is monotonically increasing but much more slowly. Year-over-year, the increase never exceeds 2% besides this season and 2020 (about 3%). I will note we are only about a month and a half into the season and given the weather, league offense is at its nadir, so I would expect this to regress some. wOBA with two strikes has jumped in the Statcast era and this season so far has stuck out like a sore thumb. The weather caveat applies here also, as does the caveat that we are dealing with only a fraction of the plate appearances in 2021 versus all other seasons besides 2020 (for obvious reasons). This information seemingly debunks the awful two strike approach theory, at least within the defined time frame. Hitters are barely striking out more when they get to two strikes and their overall performance has not changed much season-over-season, 2021 notwithstanding. If we dig further into two strike behavior, the idea that hitters have drastically changed when they are confronted with two strikes does not track:

I will note that the chase rate calculation is based on my own filtering of the Statcast data from Baseball Savant. The swinging strike rate has increased every season and the rate at which balls are put in play with two strikes has decreased every year, which gives some credence to the complaint about hitter behavior. I would argue the changes are so small, however, that drastic claims about today’s players are not warranted. We are talking about 1.3 percentage points in terms of swinging strike rate, and 2.2 percentage points in balls in play rate from 2015-21. I do not think anyone without access to this kind of statistical information can really tell the difference between those figures when watching the game. The swing rate with two strikes has been very stable in this era. In terms of chase rate, batters have become more discerning, which can only be construed as a positive development, assuming we believe it’s better to have fewer strikeouts.

Interestingly, the rate of called strikes as a percentage of total two-strike pitches has seen a noticeable jump in 2021. Devan Fink wrote about how pitchers have become more aggressive throwing the ball in the zone this season with the advent of the new ball. I would imagine this is the impetus for the growth in the percentage of strikeouts via the called strike.

Overall, the differences in two-strike performances between seasons do not seem substantial enough to explain the acceleration of the strikeout rate growth. Maybe it is not batter performance in two strike counts, but instead a notably higher percentage of total pitches being thrown with two strikes?

There is basically no difference between 2021 and the preceding five seasons combined. The count-based run values are more of a mixed bag with no discernible trend.

Two strike performance changes does not seem notable in recent vintage. In fact, the swinging strike rates in all counts have effectively increased at the same rate across all counts.

The last thing I investigated was looking at pitch types and seeing if any groups of pitches are more responsible for the rate of whiffs than the others. Here there are more interesting trends.

Neither breaking pitches nor offspeed pitches have seen much of an influx in swinging strikes. Hitters have struggled more with fastballs, on the other hand, in all situations. (Another hat tip to Devan Fink, who wrote about the unusually large increase in fastball velocity in the month of April this season.) Pitchers’ fastballs are becoming tougher to time-up and now that they are becoming more aggressive throwing the ball in the zone, they are inducing more swinging strikes with those pitches.

The league’s two-strike approach does not seem to be having an outsized effect on the rise in strikeouts, at least in this most recent era of baseball. There are small upticks in a few relevant metrics, but more of the increase has to do with swings and misses in all counts, especially on fastballs. This count-based analysis yielded similar results to an excellent piece from Chet Gutwein here at FanGraphs. He found that not only has the league’s swinging strike rate on fastballs increased more relative to other pitch types, but fastballs high in the zone were mostly to blame due to the continuing growth of velocity and, as a consequence, spin rate.

As the league tries to address the issue of fewer balls in play now and in the future, finding a way to combat the rise in pitcher velocity should be one of the first items on the docket. The fact that pitches are moving more than ever does not appear to be as large a factor, given the changes in whiff rates on breaking and offspeed pitches. Moving the mound back, which will be implemented in the Atlantic League this season, and giving hitters more time to react seems like a good start. After parsing through the two strike data, it seems like rectifying the lack of formidable two strike approaches across the majors is not the silver bullet many believe. Digging further into the data by pitch type in all counts, the main issue is rising whiff rates on fastballs, which Chet Gutwein opined on in his own piece I referenced above. So maybe combating velocity is the elusive silver bullet? Without a relatively controlled experiment we cannot say for certain. But we can say that hitters being criticized for forgoing any semblance of a two strike approach and placing the blame on them for the rise in strikeouts is most likely a futile exercise.

As the 2021 season nears its Memorial Day checkpoint, feast your eyes upon some stars who are off to the best starts of their career, a couple of wily veterans still learning (and if they know what’s good for them, eventually unlearning) some new tricks, and two-up-and down hurlers on a quest for consistency.

Tuesday, May 18, 6:40 PM ET: Trevor Rogers vs. Zack Wheeler

Two of the National League’s best pitchers through the season’s first month are on a collision course at Citizens Bank Park. One is an NL East mainstay who generated considerable prospect hype; the other is making a name for himself after a relatively anonymous minor league career. While Rogers was a first-round pick and a top-six prospect in the Marlins’ system heading into the season, he certainly was not on many fans’ radars outside of South Florida; our own Eric Longenhagen viewed him as a “stable 2-WAR starter prospect.”

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Below is an analysis of the prospects in the farm system of the Seattle Mariners. Scouting reports were compiled with information provided by industry sources as well as my own observations. As there was no minor league season in 2020, there are some instances where no new information was gleaned about a player. Players whose write-ups have not been meaningfully altered begin by telling you so. Each blurb ends with an indication of where the player played in 2020, which in turn likely informed the changes to their report if there were any. As always, I’ve leaned more heavily on sources from outside of a given org than those within for reasons of objectivity. Because outside scouts were not allowed at the alternate sites, I’ve primarily focused on data from there, and the context of that data, in my opinion, reduces how meaningful it is. Lastly, in an effort to more clearly indicate relievers’ anticipated roles, you’ll see two reliever designations, both on my lists and on The Board: MIRP, or multi-inning relief pitcher, and SIRP, or single-inning relief pitcher.

For more information on the 20-80 scouting scale by which all of our prospect content is governed, you can click here. For further explanation of Future Value’s merits and drawbacks, read Future Value.

All of the numbered prospects here also appear on The Board, a resource the site offers featuring sortable scouting information for every organization. It can be found here.

David Bednar has been a find for the Pirates. Picked up from the Padres over the offseason as part of the seven-player Joe Musgrove deal, Bednar has emerged as one of the most-reliable arms in the Pittsburgh pen. In 17 outings comprising 15-and-a-third innings, the 26-year-old right-hander has 19 strikeouts to go with a 2.35 ERA and a 2.91 FIP.

Expectations weren’t nearly that high. San Diego’s 35th-round pick in the 2016 draft, the former Lafayette College Leopard came into the current campaign with a gnarly 6.75 ERA in 17-and-a-third big-league innings. Moreover, while his velocity has always been intriguing — ditto his splitter — Bednar’s name had never been spotted near the top of a prospect list. By and large, the 6-foot-1, 245-pound hurler came to his new club unheralded, unpolished, and in need of a fresh start.

I asked Ben Cherington if the decision to acquire the Pittsburgh-born-and-bred Bednar was driven more by the team’s analytics department, or by its scouting department.

“It was both,” said the Pirates GM. “From the scouting end, I believe Andrew Lorraine was one of the pro scouts who had seen him. Joe Douglas from our professional acquisitions group is someone who dug into him from a data perspective. Plus, he’s from here, so we had some personal background as well.” Read the rest of this entry »

Ben Lindbergh and Meg Rowley banter about the same-day debuts of Jarred Kelenic and Logan Gilbert, the future of the Mariners, and whether Mariners fans have actually had it so bad, another distinction between framing and flopping, the retirement of Tyler Flowers and the impact he had on catching technique, the resurgence of Rich Hill, the state of the AL Central and whether it’s too soon to stick a fork in the unfortunate Twins, how the controversy surrounding the NBA play-in tournament mirrors the reaction to MLB’s wild card games, and the bogus revenue numbers attached to the All-Star Game, then end with a Meet a Major Leaguer segment on the Mets’ Patrick Mazeika and the Marlins’ Cody Poteet.

Audio intro: Cat Stevens, "Where Do the Children Play?"
Audio outro: Death Cab for Cutie, "Your New Twin Sized Bed"

Link to Brendan Gawlowski on Kelenic/Gilbert
Link to Baseball Prospectus on Kelenic/Gilbert
Link to Gilbert headshot
Link to MLB.com on prospect debut duos
Link to Facebook group thread on prospect debut duos
Link to Ben on Flowers’ framing improvement
Link to Ben on Flowers and league-wide framing
Link to Ben’s podcast interview with Flowers
Link to Ryan Lavarnway on Flowers’ influence
Link to 2015-19 framing leaders
Link to Ben on Molina in 2012
Link to Ben on framing and the Hall
Link to called-strike-rate data by year
Link to WaPo on the NBA play-in game
Link to NBA play-in tournament explainer
Link to HUAL episode on the play-in tournament
Link to research on NBA luck vs. MLB luck
Link to EW Multisport Sabermetrics Exchange
Link to story on Denver ASG revenue
Link to Baseball Almanac ASG revenue claims
Link to AJC on ASG revenue
Link to Gainesville Times on ASG revenue
Link to Georgia Recorder on ASG revenue
Link to study on ASG revenue
Link to Mazeika’s Twitter account
Link to story about Mazeika
Link to Sam on walk-off celebrations
Link to Mazeika walk-off videos

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These are notes on prospects from Eric Longenhagen and Tess Taruskin. Read previous installments here.

Eric’s Notes (Games from May 12)

Cody Poteet, RHP, Miami Marlins
Level & Affiliate: MLB   Age: 26   Org Rank: 24   FV: 40 Line: 5 IP, 4 H, 2 R, 0 BB, 6 K

Notes
Poteet was a prospect several years ago, last on the Marlins list in 2017 (it was just 13 names long) as a potential backend starter. He had a two-tick velo bump during quarantine, and after sitting 89-93 and topping out at 95 in 2019, he’s sitting 92-95 and touching 96 now. He had a 10-strikeout start in his first 2021 minor league outing then was immediately promoted to the big league team for Wednesday’s start. It’s surprising that Poteet had such a late bump in velocity. His era of UCLA pitcher had already adopted Driveline principals, and I would have guessed he was already maxed out. Of his three secondaries, Poteet most-often deploys his changeup, a heavy, sinking offering in the 85-88 mph range. His slider has more linear movement than two-planed sweeping shape, but it can still miss bats if it’s located away from righty batters. His curveball has plus-plus spin rates but is easy to identify out of his hand since he has a sink/tail-oriented fastball, and Poteet hung a couple of them Wednesday, one of which got put into the seats. The limited utility of his breaking balls and his fastball being more of a grounder-getter than a bat-misser holds Poteet in the low-variance backend starter bucket for me. Read the rest of this entry »

2:02

Jay Jaffe: Good afternoon, folks! Welcome to another edition of my Friday chat. It’s a gorgeous day here in Brooklyn, and I’ve already treated myself to tacos al fresco so my mood is more chipper than Larry Jones. Today I’ve got a piece on the very different COVID-19 outbreaks of the Padres and Yankees, https://blogs.fangraphs.com/even-amid-vaccinations-outbreaks-on-padres…

2:03

Jay Jaffe: Earlier this week, I wrote about Max Scherzer’s pursuit of 3,000 strikeouts, and who might be next https://blogs.fangraphs.com/max-scherzer-and-the-coming-wave-of-3000-s… The scourge of the runner-on-second extra innings rule https://blogs.fangraphs.com/the-runner-on-second-in-extras-rule-has-wo… And yet another Byron Buxton injury https://blogs.fangraphs.com/the-twins-lose-byron-buxton-again-but-thei…

2:03	Jay Jaffe: Anywho, let’s get the show on the road…

2:05

Jay Jaffe: The difference, as I noted in today’s piece, is that the vast majority of the Padres (and also the Yankees) are vaccinated and thus there’s far less fear of a team-wide outbreak, whereas that wasn’t the case even for the Nationals in April. It’s actually a bit messed up when you think about the possibility of *dis*incentivizing vaccinations, but that’s not to say that the league wouldn’t have nudged the Padres to play if they were really lagging behind

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It’s April 27. The Blue Jays may not be dominant — their roster has been decimated by injuries — but they are getting by, at least so far. They have just taken a rare series from the Rays in St. Petersburg; after a lengthy road trip, they now return to their home away from home in Dunedin, with Max Scherzer awaiting them on the mound.

On a bullpen day, the Nationals quickly take a 3-0 lead: two home runs from Trea Turner, another from Yadiel Hernandez. Scherzer erases singles in the first and second on double plays. But in the third, things start to happen: back-to-back singles from Alejandro Kirk and Cavan Biggio. A Bo Bichette walk loads the bases for Vladimir Guerrero Jr. 

Guerrero hit into the double play that ended the first inning — just the second time he’s grounded into a double play this season, a ball he scorched into the dirt at 109 mph. He’s 1-for-11 over the past few games. He fouls off Scherzer’s first pitch, a slider in the zone; he watches two that miss. The fourth slider stays up. A grand slam, and the Jays lead. Read the rest of this entry »