Sunday Notes: Jack Dreyer Is a Dodger With a Sneaky Heater and a “Bad Slider”

Jack Dreyer has been one of the top performers on a Los Angeles Dodgers pitching staff that includes no shortage of better-known hurlers. Amid relative obscurity, the 26-year-old rookie left-hander has logged a a 2.98 ERA and a 2.95 FIP over 46 appearances comprising 57-and-a-third innings. Moreover, only Yoshinobu Yamamoto has been worth more WAR (3.5) than has the 2021 non-drafted free agent out of the University of Iowa (1.3).

Our lead prospect analyst was early to the bandwagon. When our 2025 Dodgers Top Prospects list was published in late April, Eric Longenhagen described Dreyer as “incredibly deceptive,” adding that his whippy arm action delivers a fastball that has “20 inches of due north vertical break as it explodes toward the plate.”

The southpaw’s signature pitch wasn’t seen as plus during his injury-marred Iowa Hawkeyes days.

“In college, I was always told that I have average spin rate, so I can’t really throw my fastball at the top of the zone,” recalled Dreyer, who missed much of the 2019 season with a shoulder injury, then all of 2021 after undergoing Tommy John surgery. “I was told that I had a very average fastball. I kind of believed that, but then I got to the Dodgers and they were like, ‘No, actually, your stuff is really, really good. You can live at the top of the zone because of how your pitch moves.’ So, that’s kind of how I’ve adapted my pitching, using heaters at the top, which opens up my other pitches.”

Dreyer’s secondaries comprise a curveball that he’s thrown at a 10.8% clip this season, and a “bad slider” that he’s thrown far more frequently at 45.2%. More on the latter in a moment. Read the rest of this entry »


FanGraphs Weekly Mailbag: August 9, 2025

Charles LeClaire-Imagn Images

My favorite baseball questions are the ones that require both quantitative data and subjective analysis to answer. Who is the greatest baseball player of all time? Well, I could pull up the career WAR leaderboards, say Babe Ruth, and call it a day, but that wouldn’t a satisfying way to reach a conclusion. All of us know that the essence of Ruth — his vast accomplishments and legend — cannot be encapsulated by how many Wins Above Replacement he was worth.

What about Barry Bonds? He ranks second with 164.4 WAR, less than three wins behind Ruth (167.0), while playing against better competition; after all, Bonds wouldn’t have been allowed to play during Ruth’s career. Good point, but there’s the whole steroids thing clouding his legacy. For a while, Mike Trout looked like a worthy answer because of how much better he was than everybody else at a time when sabermetrics were becoming more mainstream. We would use the data to quantify his excellence and then, whenever the numbers alone weren’t convincing, we would say something about the superior talent level in the game today. Now, of course, the overwhelming majority of us would probably answer Shohei Ohtani because of his two-way exploits. We could cite his statistics, but we’d have to include so many qualifications, most of which would relate to the fact that he’s pitching and hitting.

I am not going to reveal my answer in this week’s mailbag because none of you asked for it. Instead, I bring this up because it relates to a different question that a reader named Derek submitted, which we’ll get to in a moment. But before we do, I’d like to remind all of you that while anyone can submit a question, this mailbag is exclusive to FanGraphs Members. If you aren’t yet a Member and would like to keep reading, you can sign up for a Membership here. It’s the best way to both experience the site and support our staff, and it comes with a bunch of other great benefits. Also, if you’d like to ask a question for an upcoming mailbag, send me an email at mailbag@fangraphs.com. Read the rest of this entry »


Effectively Wild Episode 2359: I Am Familiar With Winning

EWFI
Ben Lindbergh and Meg Rowley banter about whether Mike Trout has become a boring baseball player, Paul Skenes almost perfectly replicating his sensational rookie season, and recent trends in pre-arb extensions, answer a listener email (57:39) about becoming a fan of the whole league instead of (or in addition to) one team, and (1:14:49) meet major leaguers Josh Simpson and Dugan Darnell.

Audio intro: Xavier LeBlanc, “Effectively Wild Theme
Audio outro: Justin Peters, “Effectively Wild Theme

Link to Trout hypotheticals
Link to 2025 TTO% leaders
Link to Trout TTO% by year
Link to leaguewide TTO%
Link to older hitters wRC+
Link to Trout’s Savant page
Link to Trout’s $ value
Link to Dalton photo
Link to pitcher WAR since 2024
Link to Skenes pitch-type splits
Link to Paine on extensions
Link to listener emails
Link to new debuts
Link to Simpson wiki
Link to Simpson interview
Link to phantom ballplayer wiki
Link to 2024 Simpson article
Link to 2025 Simpson article
Link to ERA-xERA leaders
Link to Dartmouth draftees
Link to Princeton draftees
Link to Yale draftees
Link to UPenn draftees
Link to Harvard draftees
Link to Brown draftees
Link to Columbia draftees
Link to Cornell draftees
Link to Ivy draftees ranking
Link to Darnell wiki
Link to Darnell article 1
Link to Darnell article 2
Link to Darnell article 3
Link to Darnell article 4
Link to Darnell article 5
Link to team RP WAR

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Groundball Rates Are Dropping — And Hitters Aren’t the Only Ones To Blame

Geoff Burke-Imagn Images

We’re 10 years or so into the launch angle revolution, and the reasoning behind it hasn’t changed much. Groundballs have a .228 wOBA this season, while all other balls in play are at .462. Hit the ball on the ground, and you’re Christian Vázquez. Hit it in the air, and you’re Aaron Judge. Players are gearing their swings for damage in the air. They’re optimizing their bat path for an upward trajectory. They’re meeting the ball farther out in front. They’re looking to hit the bottom third of the ball. Knowing all this, I doubt you’d be surprised to learn that 2025 is shaping up to set the record for lowest groundball rate since 2002, when Sports Info Solutions first started tracking such things. But you might be surprised to learn just how extreme the shift has been.

So far, I’ve talked about all the reasons that batters have tried to put the ball in the air more, but that’s only half the story. Five years ago, Ben Clemens wrote a great article in which he tried to determine whether batters or pitchers exert more control over groundball rates. After separating the batters from the pitchers, he split each group into quartiles based on their 2018 groundball rates and then looked at the results when each group faced off in 2019. He found that the effect was nearly identical. When you moved the batter up one quadrant, the groundball rate of the new pairing went up by an average of 5.2 percentage points. When the pairing moved up a quadrant in the pitcher pool, the groundball rate went up by 4.8 percentage points. Knowing that, let’s not blame this all on the batters. Are pitchers as responsible as batters for the shrinking groundball rate across the majors? Let’s start by updating my 2023 league-wide update on pitch mix.

Read the rest of this entry »


FanGraphs Member Saberseminar Ticket Giveaway!

Erik Williams-USA TODAY Sports

Are you a FanGraphs Member? Are you going to be in the Chicagoland area August 23-24? Would you like to attend Sabermetrics, Scouting, and the Science of Baseball, also known as Saberseminar? Well great news! FanGraphs is doing a Saberseminar ticket giveaway for our Members.

Hosted by Illinois Tech at their Chicago campus, Saberseminar is a charity conference that brings together baseball fans, sabermetricians, data scientists, and front office personnel for a two-day showcase of the latest developments in baseball analytics. Researchers, students, and industry folks spend the weekend presenting their latest work. Last year’s conference featured talks from Reds senior director of analytics Nick Wan and Chicago White Sox senior advisor to pitching Brian Bannister, among many others, and this year’s lineup is similarly impressive. It’s also a place to network and build community across the industry, whether it’s with fans, reporters covering the game, scientists studying it, or front office personnel. Several FanGraphs writers past and present will be in attendance, including me! And all of the conference’s proceeds go to charity causes like the Alliance to Cure Cavernous Malformation.

FanGraphs has been a supporter of Saberseminar for over 10 years. This year, we’re giving away six tickets to the conference to our Members. To enter, simply fill out this Google form with your name and the email address associated with your Membership. This is important, as it is how we will verify your Membership status. You’re limited to one entry per email address. We’ll do a random drawing next Thursday, August 14, to determine who gets the tickets.

Conference Details
August 23-24
Hermann Hall Conference Center at Illinois Tech
3241 S Federal St, Chicago, IL 60616
Full Schedule

Saberseminar Meetup (21-plus)
August 23 at 5:30 PM
Maria’s Community Bar Back Patio
960 W 31st St, Chicago, IL 60608


Five Things I Liked (Or Didn’t Like) This Week, August 8

Chadd Cady-Imagn Images

Welcome to another edition of Five Things I Liked (Or Didn’t Like) This Week. Between a vacation, the All-Star break, the Trade Value Series, and the trade deadline, Five Things has been on a bit of a summer hiatus. Baseball itself doesn’t stop, of course; weird and delightful things happen whether I’m documenting them or not. But I still couldn’t shake the feeling that this week had an extra helping of whimsy. Balls took funny hops. Good pitchers got shelled in unexpected ways. Balks took center stage. Leads changed hands late, defenders kicked things into high gear – there was so much delightful baseball this week that I struggled to narrow it down to five things. Seven things just doesn’t have the same ring to it, though, so let’s quickly nod to Zach Lowe of The Ringer for the column inspiration and get going.

1. The True King of Contact
Writing about Luis Arraez can be a bummer sometimes. Not because he’s bad – he’s emphatically not – but because merely mentioning his name reinvigorates the age-old argument between those who say there are too many strikeouts and those who insist that slug is in the air. Should everyone be doing what Arraez is doing? Is he an anachronism? Is he underrated? Overrated? He’s so good at what he does – and what he does is so different from what most good baseball players do – that these questions are frustratingly omnipresent in any discussion about Arraez.

That said, I think I found an Arraez play that won’t divide the audience. The key is for it not to involve a ball in play, a walk, or a strikeout. Take a look at this beauty:

Read the rest of this entry »


An Investigation Into the Dinger-Filled Rampage of a Reborn Andrew Vaughn

Michael McLoone-Imagn Images

Since July 1, three major league offenses have been head and shoulders above the rest of the field. First, the Toronto Blue Jays, who have benefited not only from a white-hot Bo Bichette, but from having the opportunity to slather a hapless Rockies pitching staff in runs this week. Third in wRC+ but second on this list for editorial purposes: The Athletics, whose offensive run is mostly Nick Kurtz. That’s an exaggeration, but not by much; Kurtz alone is responsible for 2.6 of the vagabonds’ 6.7 position player WAR since July 1, and 39 of their 165 weighted runs created.

The other member of this trio is the Milwaukee Brewers, a team with limited name recognition, whose offense has been propped up by (among other things) a 28-year-old rookie who got cut loose from the Rockies’ minor league system in 2022.

Here’s one of those other things propping up Milwaukee’s offense: Andrew Vaughn, one of the greatest college hitters of the 2010s and a former top-three pick, but also a legendary draft bust as of eight weeks ago. Read the rest of this entry »


Effectively Wild Episode 2358: Is That a Pancake in Your Pocket, or Are You Just Happy to See Me?

EWFI
Ben Lindbergh and Meg Rowley banter about the Marlins’ winning record against the Yankees, Ty Cobb and Kyle Stowers, the Blue Jays’ demolition of the Rockies, pocket pancakes, and more. Then (38:19) they answer listener emails about a CBT exemption for World Series winners, celebrations in the pitch clock era, nonpartisan bullpens, a humorous shirsey, batter no-outers, and September roster expansion, plus Stat Blasts (1:26:50) about extreme ball/strike throwers, road-only HR hitters, no-walkoff teams, unusual scoring, and old pitcher/catcher + pitcher/batter combos.

Audio intro: Kite Person, “Effectively Wild Theme
Audio outro: Tom Rhoads, “Effectively Wild Theme

Link to Marlins vs. Yankees
Link to wins since 1993
Link to Leerhsen’s Cobb book
Link to Ringer MLB Show
Link to HoF site on Cobb
Link to Wright on Cobb 1
Link to Wright on Cobb 2
Link to Wright on Cobb 3
Link to Wright on Cobb 4
Link to Wright on Cobb 5
Link to Wright on Cobb 6
Link to Wright on Cobb 7
Link to Wright on Cobb 8
Link to Wright on Cobb 9
Link to Ben on Ichiro power
Link to E. coli outbreak
Link to dysentery report
Link to Oregon Trail meme
Link to Jays fun facts
Link to run differential data
Link to FG’s The Board
Link to Buxton cycle
Link to Buxton images
Link to Twins summer sausage
Link to pocket pancake video
Link to Bellinger violation
Link to pitch clock extension
Link to strike% data
Link to ball% data
Link to road homers sheet
Link to runs matching innings sheet
Link to 2007 Sox-Yanks game
Link to 2013 Sox-M’s game
Link to 1979 Phils-Cubs game
Link to 2008 Marlins Rockies game
Link to 1925 Sox-Tigers game
Link to Quinn-Schang game
Link to Clemens-Franco game
Link to listener emails database
Link to all-triples games

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Red Sox, Roman Anthony Agree To Eight-Year Contract Extension

Joe Nicholson-Imagn Images

Friends, Red Sox fans, FanGraphs readers, lend me your ears,
I come to analyze the contract extension, not to bemoan it.
The free agency status that teams despise lives after them,
The good is oft interred with their luxury tax penalties.

So let it be with Anthony. The noble Red Sox
Hath told you that Rafael Devers was ambitious;
If it were so, it was a grievous fault,
And grievously hath the lineup answer’d it.

Here, under leave of Meg and the rest,
For they are honorable editors,
Come ZiPS to speak at Anthony’s signing,
It is my computer, faithful and just to me.

While the Red Sox have quite the mixed record of letting players leave in free agency or trading them before they can sign elsewhere, the organization has been fairly aggressive at signing players with limited service time in order to buy out free agent years in advance. Brayan Bello is signed through 2030, at least if a club option is picked up, and both Kristian Campbell and Ceddanne Rafaela, well short of arbitration status, are under club control into the 2030s. When the Red Sox acquired Garrett Crochet, they didn’t muck around either, making sure he’d be kept in town on a six-year, $170 million contract extension that he signed a few months after the trade.

Now it’s Roman Anthony’s turn. The guaranteed portion of the contract calls for $130 million over eight years, beginning next season, with $125 million total in salary through the 2023 campaign and a $5 million buyout on a $30 million club option for 2034. If the Red Sox pick up the option, the total value of the deal would be nine years and $155 million. There is also a Halloween bucket full of various incentives that could net Anthony a maximum $230 million over the next nine years. However, that high-end figure will be quite hard to meet. As MassLive’s Chris Cotillo points out, for Anthony to earn that $230 million maximum, he would have to finish top two in the Rookie of the Year voting this season, make the All-Star team in all eight seasons of the extension and also in the option year, and win the next nine MVP awards — one for every year of the extension, plus the option season. Nobody has ever won nine MVPs; Barry Bonds has the most, with seven. So, in order to hit every incentive in his new contract, Anthony would have to become, without exaggeration, the best baseball player ever. If, in the pretty-much-impossible event that this happens, the Red Sox would be getting literally the greatest of all time for less money than the Angels are paying Anthony Rendon. Read the rest of this entry »


RosterResource Chat – 8/7/25

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