Happy first Saturday of the offseason, everyone. To celebrate the occasion, you get two mailbag columns this week! The first ran on Monday and wrapped up a thrilling World Series. In today’s edition, we’ll move on from the Fall Classic and answer your questions about several teams that finished in last place this season. We’ll also cover small-market teams and some of the structures that are in place to encourage them to spend more on their rosters.

The first question we’ll answer today is about a player we’ve featured before in this column. In fact, some are calling him the Patron Saint of the Mailbag, an honor second only to his status as the worst major league player ever.

But before we continue, I’d like to remind you all that 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 »

Hagen Smith has a promising future on the South Side. Drafted fifth overall in 2024 out of the University of Arkansas, the 22-year-old left-hander in the Chicago White Sox system is No. 81 on The Board with a 50 FV. Currently making up lost innings in the Arizona Fall League — he missed six weeks this summer due to elbow soreness — Smith has been described by Eric Longenhagen as possessing “a killer fastball/slider combo.”

The erstwhile Razorback’s go-to breaker — a pitch our lead prospect analyst has assigned a 70 on the scouting scale — isn’t notable solely for its bat-missing attributes.

“No, not at all,” Smith replied when asked if his slider grip is fairly standard. “I actually don’t hold any laces on the ball. My first year of college — it was a start in Omaha — I was warming up in the outfield and just kind of tweaked the grip. That’s what it’s been since then. I really don’t know why it works as well as it does. I mean, it’s a good pitch metrically, but outside of that I guess it just plays well off of my heater. It comes out of the same tunnel, and it also helps that I can throw it slower or harder when I want to.”

How has Smith’s slider looked in the AFL? Read the rest of this entry »

Senior Quantitative Analyst

Position Overview 
The Chicago White Sox is seeking a Senior Quantitative Analyst with exceptional statistical expertise to enhance model development for our growing Research & Development team. You’ll design and deploy sophisticated models that inform critical decisions across player evaluation, development, and strategy—while mentoring other analysts in advanced statistical methods and best practices.

Job Responsibilities 

• Design, build, and deploy production-grade statistical models for player forecasting, evaluation, and strategic decision-making
• Own modeling projects end-to-end: research question formulation, statistical design, implementation, validation, and deployment
• Adhere to statistical best practices, coding standards, and reusable modeling infrastructure for the team
• Mentor junior analysts in advanced statistical techniques, experimental design, and model development workflows through code reviews and technical workshops
• Translate complex statistical findings into actionable insights for coaches, scouts, and front office executives

Required Qualifications

Education & Experience

• Bachelor’s degree in Statistics, Mathematics, Computer Science, or related quantitative field
• 3-5 years building and deploying predictive models in industry or advanced graduate training

Technical Skills

• High proficiency in R or Python and SQL
• Deep expertise in Bayesian statistics with hands-on experience building custom Bayesian models
• Strong experience with probabilistic programming languages (Stan, PyMC, JAGS, or similar)
• Familiarity with machine learning methods (regression, classification, ensemble methods, neural networks), causal inference approaches, and core algorithms for optimization and model fitting
• Experience with version control (Git) and building production model pipelines

Professional Attributes

• Strong analytical and problem-solving skills with attention to statistical rigor
• Excellent communication skills for both technical and non-technical audiences
• Ability to work independently on long-term projects and manage multiple priorities
• Passion for mentoring and elevating team capabilities

Preferred Qualifications

• Graduate degree (M.S. or Ph.D.) in Statistics or related quantitative field
• 5+ years of experience building models in industry or relevant field
• Knowledge of current baseball research and sabermetrics

About Our Culture
We are building a growing analytics team where every member has the opportunity to make meaningful contributions. Our team is guided by three core values:

• Process Driven: We strive to establish robust analytical frameworks, document thoroughly, and build sustainable systems that scale
• Communication: We translate complex findings into actionable insights for diverse audiences
• Impact: We measure success by how our models influence real decisions and outcomes

Working Conditions

• Flexible hours including evenings, weekends, and holidays as dictated by the baseball calendar
• Ability to handle confidential information with discretion
• Occasional travel

Compensation:

• $90,000 – $100,000

Benefits include:

• Health
• Dental
• Life
• AD&D
• LTD
• Defined Benefit Plan (Major League Baseball Pension for Non-Uniformed Personnel)
• Voluntary Supplemental Life
• Voluntary Supplemental AD&D
• Voluntary Vision
• Voluntary Pet Insurance
• Voluntary 401(k)
• Voluntary Flex Benefits (FSA, Transportation, Dependent Care)
• Complimentary White Sox Tickets
• Complimentary Lunch
• Holiday Break
• Promotional Items

Chicago White Sox is an Equal Opportunity employer committed to a diverse workforce. We do not discriminate based on race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, disability, or any other status or characteristic protected by applicable federal, state, or local law.

Please include a resume and cover letter.

To Apply
To apply, please follow this link.

The content in this posting was created and provided solely by the Chicago White Sox.

Cade Horton hasn’t simply been one of the best rookie pitchers in MLB this year, he has been one of the better starters in the senior circuit. The 24-year-old Chicago Cubs right-hander has a record of 11-4 to go with a 2.66 ERA and a 3.53 FIP over 115 frames. Moreover, he boasts a 0.93 ERA over his last 11 starts. In Triple-A to begin the season — his Cubs’ debut came on May 10th — Horton is now poised to start for Craig Counsell’s club in October,

My colleague Michael Baumann wrote about the 2022 first-rounder just over a month ago, but given his continued success, and with the postseason looming, another article seemed in order. Already well-informed on his background and arsenal, I asked Horton about the approach he takes with him to the mound.

“I’m a guy that is going to go out there and fill up the zone,” the erstwhile Oklahoma Sooner told me prior to a recent game at Wrigley Field. “I really just try to get outs and put my team in a good position to win. I’m a competitor, so I’m attacking the strike zone.”

Attacking the strike zone is, in many ways, akin to pitching to contact — more of an old-school approach to pitching — whereas in today’s game, chasing swing-and-miss is most often the goal. Given his high-octane heater and overall plus stuff, is he not looking to miss bats? Read the rest of this entry »

I was starting to get worried that Griffin Jax was going to be left behind in the Twins’ wholesale liquidation of their bullpen. Fear not; the hardest thrower in the Air Force Reserve is headed out after all. The Rays currently sit two games under .500 and 3 1/2 games out of a Wild Card spot, with a 9.9% chance of making the playoffs. That long-shot contender status did not dampen their enthusiasm for Jax in the slightest. Tampa Bay sent the talented but inconsistent starter Taj Bradley to Minnesota in exchange for Jax, who is under team control through 2027.

The Rays also sent infielder Curtis Mead and prospects Duncan Davitt and Ben Peoples to the White Sox in exchange for Adrian Houser, who will presumably take the rotation spot Bradley vacated. Read the rest of this entry »

Not every deadline trade is a dramatic one, but that’s OK — teams need to make low-key moves, too. Do you think James Bond saved the world every day? No! Some days, he had to do paperwork. Some days, he had to go to the dentist, or take the car to the gas station to vacuum up the leftover Cool Ranch Doritos crumbs on the floor after they spilled out on his drive from Baltim… I mean Bristol. So let’s catch up on some of Wednesday’s smaller moves.

The Seattle Mariners acquired left-handed reliever Caleb Ferguson from the Pittsburgh Pirates for right-handed starter Jeter Martinez

The Mariners have been operating with a shortage of southpaws this season, with Gabe Speier mostly being the only lefty on the active roster. Speier’s been good, holding lefties to a .609 OPS this season, but he can’t pitch in every playoff game, and Andrés Muñoz, who handles lefties quite well, generally doesn’t make his entrance before the ninth inning, so a depth-targeted upgrade to give the team another option down the stretch and during October makes a lot of sense. Caleb Ferguson has shed some strikeouts this year as he’s more heavily integrated his sinker into his repertoire, but he’s compensated for that loss by shedding a walk per nine from last season and becoming one of the hardest pitchers in baseball to make good contact against. Of all the pitchers with at least 30 innings this season, only Adrian Morejon has allowed a lower hard-hit percentage. Ferguson gives the Mariners a second lefty in the ‘pen they can count on, something they couldn’t really say about Joe Jacques or Tayler Saucedo. Read the rest of this entry »

Last week, I began a series of pieces about team win-loss totals as estimated by BaseRuns, first by taking a broad look at the methodology and its limitations, then by zooming in on the offenses that deviate most notably from their BaseRuns assessment in the run scoring department. Let’s wrap up with a look at the defenses that sit furthest from their runs allowed approximation.

In the offense edition, I used a game show format to evaluate whether the perspective offered by BaseRuns has a point, or if there’s something its methodology is overlooking. We’ll keep that framework going for the defenses as well. Here’s a reminder of how it works:

To determine whether or not BaseRuns knows what it’s talking about with respect to each team, imagine yourself sitting in the audience on a game show set. The person on your left is dressed as Little Bo Peep, while the person on your right has gone to great lengths to look like Beetlejuice. That or Michael Keaton is really hard up for money. On stage there are a series of doors, each labeled with a team name. Behind each door is a flashing neon sign that reads either “Skill Issue!” or “Built Different!” Both can be either complimentary or derogatory depending on whether BaseRuns is more or less optimistic about a team relative to its actual record. For teams that BaseRuns suggests are better than the numbers indicate, the skill issue identified is a good thing — a latent ability not yet apparent in the on-field results. But if BaseRuns thinks a team is worse than the numbers currently imply, then skill issue is used more colloquially to suggest a lack thereof. The teams that are built different buck the norms laid out by BaseRuns and find a way that BaseRuns doesn’t consider to either excel or struggle.

Read the rest of this entry »

When I volunteered to write about the Aaron Civale-for-Andrew Vaughn swap, I thought I was going to be covering the most interesting trade of the month. At the very least, I thought I’d be putting out the most interesting trade write-up of the day. It’s not that Civale and Vaughn are huge household names, but you don’t often see notable major leaguers traded for one another in June. Trade season isn’t supposed to have started yet! I looked back through the FanGraphs archives to find pieces with the “trade” tag that dealt with June transactions. I found six others:

1. The Phillies acquired Jay Bruce from the Mariners for Jake Scheiner (2019).

2. The Yankees acquired Edwin Encarnación from the Mariners for Juan Then (2019).

3. The Blue Jays acquired Adam Cimber and Corey Dickerson from the Marlins for Joe Panik and Andrew McInvale (2021).

4. The Mariners acquired Carlos Santana for Wyatt Mills and William Fleming (2022).

5. The Rangers acquired Aroldis Chapman for Cole Ragans and Roni Cabrera (2023).

6. The Giants acquired Rafael Devers for Kyle Harrison and Jordan Hicks (2025).

Then, of course, there’s one you’re reading right now. Of those seven June trades we’ve covered, four took place before the last week of the month: the two from 2019 and the two from the past 72 hours.

Do I feel slighted that mine is no longer the biggest trade story of the month, the week, or even the day? That through no fault of my own and no fault of my editors’, my story has been relegated to a secondary position? No, not really. But if I did, I’d be able to relate quite well to Civale. Last week, the Brewers informed the right-hander he’d be moving to the bullpen. Civale was understandably upset. He’s in his free agent walk year, and moving to a long relief role could diminish his earning potential in the offseason. What’s more, aside from one postseason appearance last fall, he has never worked out of the bullpen in his professional career. Above all else, he remains a perfectly capable back-end starting pitcher. He didn’t cost himself a rotation spot with his poor performance; the Brewers simply had five superior options. Read the rest of this entry »

Just over a year ago, the Brewers made the best kind of baseball history: weird baseball history. On May 31, 2024, they hosted the White Sox in Milwaukee, shellacking them 12-5. That part wasn’t weird. It’s hard to imagine anything less weird than the 2024 White Sox losing a baseball game (unless it’s the 2025 Rockies losing a baseball game). The weird part was how the Brewers beat the White Sox. They put up 23 hits, and 16 of those hits came on groundballs. That’s the most groundball base hits ever recorded since the pitch tracking era began in 2008. Would you like to see them all? Of course you would.

That’s what a record looks like. Groundball after groundball finding the various nooks and crannies that made the 2024 White Sox defense so similar to an English muffin. We’ve been waiting until this game’s anniversary to write about it. According to Baseball Savant, since 2008, only one other team has surpassed 12 groundball base hits in a single game. The White Sox tallied 15 against the Tigers on September 14, 2017. And that’s it. That’s the only team that came within three groundball hits of Milwaukee. First, let’s talk about how the Brewers pulled off this feat of worm-burning ingenuity.

As with any record, a fair bit of luck was involved. Balls took crazy hops off the mound and the first base bag. The Brewers hit a perfectly placed chopper and sent a ball hugging the third base line on a check swing. They wouldn’t have broken the record if any one of those balls had bounced another way. But as the saying goes, luck is the residue of design, and there was plenty of design involved here too. Read the rest of this entry »

A papal conclave is the ultimate news story. It’s an event shrouded in ceremony and secrecy, which takes place incredibly rarely; only three times in the past 40 years, in fact. Even in this era when seeing everything has made the mysterious mundane, the world is left waiting in total ignorance for news of white smoke. Billions of observers, Catholic or not, look on in rapt fascination. And when the conclave produced the first American-born pope, Leo XIV, things only got more fascinating.

I come from a Catholic extended family, but for the most part, I was a devoted low-church protestant in my youth and am largely irreligious now. Nevertheless, I’ve always held the Vatican in a certain esteem. Its grandeur, its rituals, its dense and ancient jargon — all of that looks mystical and romantic from a distance. Is it the sole conduit to Almighty God? Perhaps not, from where I sit. But it’s a fascinating institution nonetheless.

That cloud of fairy tale wonder evaporated in an instant on Thursday, when the cardinal electors chose Cardinal Robert Prevost of Chicago to inherit St. Peter’s throne. Read the rest of this entry »