Last week, I did a radio hit in Baltimore to talk about the Orioles’ five-year extension for right-handed starter Shane Baz. As you might expect, I got asked for my general impressions of the Orioles’ rotation, and I gave an answer I did not expect to be controversial: I like Baltimore’s rotation, and I’m quite fond of Trevor Rogers and Kyle Bradish, the top two starting pitchers. That said, the Orioles don’t have a clear no. 1-quality starter, which could end up as a weakness in a playoff series.

“Ace” and its synonyms are fuzzy in meaning, so I’ll define my terms as clearly as I can: I meant that the Orioles don’t have a starting pitcher who can be expected to go up against one of the top pitchers in the league and fight him to a draw for six innings. I’ll give an example from last year’s World Series: I think Yoshinobu Yamamoto is a better pitcher than Kevin Gausman — and sure enough, Yamamoto beat Gausman twice in as many attempts — but the difference isn’t so great that you’d be able to tell over one start.

I got some pushback on social media — some of it quite intense — from Orioles fans who like their chances with Rogers against Tarik Skubal. Every sports fan thinks they’re the center of the universe these days, and accordingly that everything about their team is better than the biased national media will give them credit for. (Except White Sox and Twins fans, who think everything about their team is even worse than the biased national media realizes.) Even if that weren’t true, I would ordinarily never admit to treating randos on X, the Everything App, like an assignment editor. That way lies madness. Read the rest of this entry »

Batters swing slower in the cold, but I’m not sure that it matters.

Bat speed goes down when it’s cold, and it goes up when it’s hot. This is something that’s both literally true and curiously linear. We can see in the plot below that bat speed climbs bit by bit as temperature rises from chilly to toasty:

My first thought is this makes sense. It’s reasonable to assume batters don’t swing as fast when their muscles are stiff and their hands are numb. I’ve been cold before, and yeah, it’s difficult to perform tasks requiring fine motor skills.

My second thought is I’m skeptical. Notice the scale of the plot. All that movement amounts to about 0.6 mph from the coldest games to the warmest games. Lots of things other than temperature could be driving this relationship. Bat speed goes down with velocity. Velocity goes up with relievers. Relievers enter games late. Temperature goes down at night. You can see how this could get tricky.

Let’s build a model. Read the rest of this entry »

Mostly, we treat the Los Angeles Angels like the friend whose life is a wreck but there’s nothing you can do about it because they’ll never ask for help and won’t take advice. So you just check in on the AL West standings every so often and feel a combination of pity and helplessness.

Well, you can take your pity and shove it, because as I write this the Angels are in first place in the division. Tied for first place, at one game over .500, but it still counts. Much as Jo Adell’s three-robbery night on Saturday won fawning headlines, and much as Zach Neto’s four home runs are leading the offense, there is one man driving this train: José Soriano. Read the rest of this entry »

This isn’t how they drew it up on the North Side this winter. The Cubs won 92 games in 2025, and then they made some additions in the winter. The Brewers, meanwhile, subtracted. Chicago had the best playoff odds of any team in the NL Central, whether you’re talking about our odds, PECOTA’s odds, or pretty much any projection system you can name. The Cubs had exciting rookies, battle-tested veterans, and fun vibes. Surely, they’d sail through 2026.

Nearly two weeks into the season, it’s fair to say that things haven’t gone according to plan. There’s the standings, for one thing: They’re in last place in the NL Central. But this early in the year, only four games separate first and last in the division, so that’s not the biggest problem in Wrigleyville. A bigger concern is that Cade Horton and Matthew Boyd, two of Chicago’s top starting pitchers, hit the IL on consecutive days. Seiya Suzuki hasn’t appeared yet this year, though he’s expected back on Friday.

Horton’s injury looks to be the worst of the two. He left last Friday’s start after feeling forearm discomfort, and after getting some scans over the weekend, he’s seeking a second opinion from Dr. Keith Meister. That ominous turn of phrase doesn’t guarantee a long-term injury, of course, but it’s definitely not a good sign. Pitchers don’t generally seek second opinions from famous surgeons unless there’s a decent chance of surgery.

Boyd was supposed to be the safe option in the Cubs rotation. We had him down for the most innings and the most WAR, the staff ace. His bicep strain might not be all that bad; he noted that he could have pitched through the injury if it weren’t so early in the year. But that’s not really the nature of pitcher injuries, in my experience. Sure, sometimes they’re short. But a guaranteed minimum stay doesn’t exist. I think it’s reasonable to be worried about Boyd’s prognosis until he’s back on a major league mound, even though he seems likely to return far sooner than Horton. Read the rest of this entry »

Mark Grant is one of the game’s most entertaining color analysts. Teamed with play-by-play announcer Don Orsillo, the man affectionately known as “Mud” is a big part of why the San Diego Padres TV booth polled as baseball’s best in Awful Announcing’s 2025 local broadcaster rankings. Now in his 11th season alongside Orsillo, Grant first began working Padres games in 1996. His previous partners in the booth include the legendary Dick Enberg.

Grant was a pitcher prior to becoming a broadcaster, toeing the rubber for six teams across the 1984-1993 seasons, including the Padres, with whom he made 126 of his 233 appearances. All told, he went 22-32 with eight saves and a 4.31 ERA over 638 2/3 innings.

How well does he remember his matchups against certain batters he faced? As I’ve done previously with David Cone, Mark Gubicza, and Jeff Montgomery — those pieces can be found here, here, and here — I decided to find out by challenging him to a career quiz. Not only did he oblige, he supplied fun anecdotes along the way.

I began by asking the pitcher-turned-broadcaster which batter he faced the most times. Read the rest of this entry »

Last week, Dan Szymborski looked at how much a team’s fortunes can change in the first month of the season. That old truism – you can’t win the World Series in April, but you can lose it – turns out to, in fact, be true. Dan’s research found that even teams we think are good – those projected to win 90 or more games – had meaningfully worse results after a bad April, even if their actual talent remained the same.

In other words, those early losses really do count. But I like to look at things from a glass-half-full perspective, so my takeaway was that there’s still plenty of time to fix a bad start, because it’s still early in the season. But how to fix it? That’s a trickier question. Luckily, “that’s a tricky question” is just FanGraphs for “that’s a fun thing to write an article about,” so I’ve got answers for you. Read the rest of this entry »

Jo Adell performed a miracle. Let’s turn it into math.

Adell robbed the Mariners of three home runs on Saturday. He got Cal Raleigh in the first inning, Josh Naylor in the eighth, and J.P. Crawford in the ninth. Sports Info Solutions has tracked home run robberies since 2004 and only twice had an outfielder robbed even two home runs in a game — nobody had ever robbed three.

Each catch was crucial. The Angels wound up winning 1-0, with Zach Neto’s leadoff solo shot in the first inning being the only run of the game. That means Adell was thrice the difference in the Angels’ narrow victory.

Win Probability Added doesn’t agree. It suggests Adell overall hurt the Angels’ chances of winning by about 3%. Position players only gain WPA on offense — Adell went 1-for-3 with an irrelevant single — so he didn’t get credit for any of these catches. WPA instead gives all the glory to the pitcher, with the assumption that an out is an out on defense, and the only thing that can be known about an out is who threw the ball (in this case, Jack Kochanowicz, Sam Bachman, and Jordan Romano).

While this assumption makes sense for nearly all plays and scenarios, home run robberies are a bit different. They’re definitive. We know what the outcome was, and we know what the outcome would have been had Adell not intervened.

How much was each catch worth? And how much credit does Adell deserve? Let’s take a look. Read the rest of this entry »

Going into yesterday, Mason Miller had thrown 37 pitches on the season, 19 of them fastballs averaging 101 mph, while another 17 were sliders that elicited a 60.0% whiff rate. There was also one changeup. Delivered to Luis Arraez on a 1-1 count, the ninth-inning offering was wide outside and taken for a ball.

Why did the San Diego Padres closer throw his seldom-used changeup to the three-time batting champ on Wednesday night? Low leverage was certainly a factor; the Friars had scored four times in the bottom of the eighth to turn a 3-1 lead into a far safer 7-1 advantage. It nonetheless represented an outlier for the 27-year-old flamethrower. Over the previous two seasons, only 2.3% of his pitches were changeups.

I asked him about it when the Padres visited Fenway Park on Friday,

“A changeup is a good pitch, but I’m not going to feel comfortable with it if I’m not throwing it,” Miller told me. “I’m picking my spots. There are certain guys it matches up well against. [Arraez] is a guy who isn’t going to swing and miss, so I’m not going to be hunting a strikeout. If I can get softer contact on it… any time you have a guy who isn’t fast and he puts it on the ground, that’s an opportunity for an out.”

Arraez didn’t kill any worms in his matchup with Miller, instead lining a 2-1 fastball to right field for a single. Not that it mattered. The righty proceeded to fan the next three batters, one on a 101.5-mph heater, and two on nasty sliders. While those pitches were pristine, the execution on his lone changeup was another story. Read the rest of this entry »

It took all of a week for the Pirates to call up shortstop Konnor Griffin, the top prospect in all of baseball, to make his debut in their home opener Friday afternoon. Batting seventh, Griffin went 1-for-3 with a walk in Pittsburgh’s 5-4 win over the Orioles, with the highlight coming in the second inning. He stepped in with a runner on second and one out against Baltimore right-hander Kyle Bradish. The first pitch was a slider well off the plate that Griffin chased and missed. He took the next pitch, a slider even farther away, for a ball, whiffed at yet another slider low and away for strike two, and barely got a piece of a fourth-straight slider outside the zone to stay alive. Then, finally, he got a pitch to hit, a curveball on the black away. He scorched it into the left-center gap for a double to drive in the first Pirates run of the game. Two pitches later, he showed off his 70-grade speed, blazing around third to score on a single to shallow right field.

If you’re reading this Members only mailbag, you almost certainly know all about Griffin and his tantalizing, franchise-altering potential. Our prospect team described him as a “freaky five-tool player” when they ranked him no. 1 on our preseason Top 100 list and assigned him a 70 FV. He doesn’t turn 20 until the end of this month and immediately raises the floor of this Pirates team significantly, even if he struggles some out of the gate. Michael Baumann wrote about Griffin on Thursday afternoon, and I’d encourage you to read it if you want to learn more about what Griffin brings to the Pirates and why, after just five games at Triple-A, they decided it was the right time for his big league career to begin.

That’s the last you’ll read about Griffin’s debut in this week’s mailbag. Instead, we’ll answer yours questions on the World Series teams with the most and least WAR on their rosters at the time of their Fall Classic, the dropped third strike rule, and players with the same name. But first, I’d like to remind you 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 »

When looking at most April stats, especially the basic ones, I spend a lot of time issuing disclaimers about small sample sizes. After all, any player can do just about anything in 25 or 50 or 100 plate appearances. I’m pretty confident that Joey Wiemer is not going to end the season as the NL MVP, and that Hunter Barco won’t finish the season with the worst WAR in major league history. But conversely, when we’re talking about standings, even if bad/good starts shouldn’t necessarily overconcern us about a player’s future, when it comes to teams, playoffs are determined by wins, which are cumulative numbers with razor-sharp margins. It’s not the end of the world if Cal Raleigh, because of his slow start, finishes with 38 homers instead of his projected 41 (ZiPS DC), but it may doom the Mariners if they underperform their projections by three wins.

The season is just a week old, but there are already sizable impacts in playoff probabilities around the league. To demonstrate this, I ran ZiPS overnight to get the updated playoff odds, so I could compare them to the preseason projections. Six teams have seen their playoff odds change by at least five percentage points. Here’s the full table, as things stand on Friday morning.

Read the rest of this entry »