The story need not be repeated. You are already familiar with the tale of Alec Bohm’s irritated mutterings, and the camera that caught them, the ensuing apology and appreciative ovation that followed.
This article is not going to be about that. It’s not going to be about the psychology of being an athlete in the spotlight or the sociology of fandom. It’s going to be about meteorology, and why it might give Bohm good reason to dislike playing at Citizens Bank Park.
Backing up for a moment: earlier this week, wanting to take a walk but not being able to stroll through the streets of beautiful Philadelphia on account of the snow, ice, and my own general clumsiness, I was instead taking a stroll through Baseball Savant. This sort of wandering does not offer the charm of birdsong, old buildings, or conversations with strangers that more traditional flâneuring does, but it does offer the opportunity to notice something odd or eye-catching on the page of one Phillie or another. On this occasion, I noticed that Alec Bohm’s performance at the plate on the road had been better than his performance at Citizens Bank Park for each of the past three seasons.
Those differences aren’t huge. And it’s worth noting that he was better at home than on the road in 2021 and 2022. Nevertheless, I was stuck at home, and, in truth, in need of something to write about. So I decided to poke around a little more, just in case those small differences were hiding something interesting.
There isn’t an immediately obvious reason to suspect that calling CBP home may be a negative for Bohm. It is a better park for lefties than for righties, but that has more to do with dimensions that are exceptionally conducive for lefties to hit home runs than any sort of hostility to the non-sinisters. Per Statcast’s park factors, the Bank plays as neutral for right-handed hitters. That being said, there is something unusual about CBP.
Over at MLB.com, Mike Petriello recently wrote an interesting article about how Kyle Tucker’s performance as a Cub had been dramatically better when outside the (apparently not-so-) Friendly Confines of Wrigley. This was, in part, due to the brutal breezes of the Windy City. That got me wondering if, perhaps, Bohm’s superior performance on the road over the past three seasons might be influenced by the winds. Though Citizens Bank Park doesn’t have Wrigley’s reputation for weather-related chaos, it is a sufficiently breezy place. The wind at CBP tends to rob players of homers, to a greater degree than most stadiums league-wide. That may come as a bit of a surprise, given that (again per Statcast) CBP has been more homer-happy than all but a trio of other stadiums (Dodger Stadium, Great American Ballpark, Yankee Stadium and her horizontally-challenged right field porch) over the past three years. But these facts can coexist happily; it simply means that CBP would be even more conducive to round-trippers were it not for the wind.
So I decided to look at how Alec Bohm performs against the wind, with his fellow righties added in for comparison.
Here’s how all the Phillies righties (min 250 PA) did, 2021-2025, when the wind was blowing in vs. when the wind was blowing out, since 2021 (appearances as a Phillie only). For the moment, we’re looking at overall performance, without home/road splits.
Bohm does better when the wind is blowing out versus when it’s blowing in, and that makes sense: wind blows out, ball travels farther, batter does better (Oddly, J.T. Realmuto does significantly worse when the wind is blowing out— but that’s a question for another time). What’s unusual here is how much better Bohm does when the wind is blowing out. wRC+ is standardized so that 100 is average, and each point above or below 100 indicates being one percent better or worse than average. When the wind is blowing in, Bohm is a significantly below-average hitter. When it’s blowing out, he’s above-average. He’s 53% better when the wind is in his favor. That’s enormous. I won’t bore you with the full chart, but suffice it to say Bohm’s gap between wind-out and wind-in performance is by far the largest of any current Phillie.
Now let’s look at the combination of wind splits and home/road splits.
Here’s the same chart, but only for plate appearances at CBP:
And here’s only plate appearances away from CBP:
Bohm performs better with the wind blowing out than with the wind blowing in at home and on the road, but the gap at CBP is 4.6 times as big as the gap on the road. When the wind is blowing in at CBP, Bohm’s wRC+ is a truly dismal 37. For what it’s worth, that puts Bohm at 397th of 407 players (min 7o PA) for performance at home with the wind blowing in. I have a feeling that statistic is a little too finely sliced to be all that meaningful, but it does illustrate just how rough Bohm’s performance under those conditions has been.
So we know that Bohm struggles, and struggles severely, when the wind is blowing towards him at home. Much more so than his teammates. As further evidence of this, take a look at his Batting Average on Balls in Play (2021-Present) broken out by wind in/out and home/road. The gap between his performance with the wind out and the wind in is twice as big at home than it is on the road.
But why? Is there something about Bohm’s performance at the plate that sets him apart from his teammates, and makes his batted balls particularly vulnerable to the impact of wind blowing in at home?
My first thought is that it might have something to do with the direction Bohm hits the ball. Bohm is disproportionately likely to hit the ball straight. Last season, 47.4 % of his batted balls went right back up the middle, putting him at #1 league-wide; the MLB average was 36.4% . It would stand to reason that a player who is especially likely to hit the ball up the middle would be especially vulnerable to the impact of wind blowing right back down the middle. But upon further investigation, I don’t think that explanation holds up. That 47.4% figure combines all types of batted balls. If we look only at batted balls in the air, Bohm is slightly more likely than average to hit them straight, but not to a huge degree. And he’s also less likely than average to hit the ball in the air at all. His exceedingly high percentage of batted balls up the middle is mostly the result of him hitting a lot of grounders straight, and I don’t see much reason to believe that the wind would have a large impact on those. On top of that, Bohm was more likely than average to hit the ball straight in the 2021 and 2022 seasons where his performance at home outstripped his performance on the road.
At this point, I have to consider the possibility that this may all be illusion. When you’re slicing up statistics with by using multiple splits, you’re looking at relatively small sample sizes. And small sample sizes produce odd results that often turn out to be nothing more than chance. There’s a statistical concept called p-hacking, which means looking at comparisons until you find one that, by pure chance, happens to seem significant, then reporting it as if it really means something. The fact is that Bohm’s superior performance on the road has only been the case for three seasons, and he produced the opposite splits in the two seasons to that. This could be nothing more than small sample size, and I might be putting a Phillies P in p-hacking.
But there is one more thing I want to look at before I wrap up. There’s another way that Bohm differs from all of his teammates— from nearly all of MLB. His swing. His attack angle (per Statcast, the “vertical angle at which sweet spot is traveling at the point of impact”) is 5°, which is exceedingly low. The average across MLB is 10°, and only 12 qualified batters had a lower attack angle than Bohm in 2025. On top of that, Bohm’s attack angle seems to have dropped over the past few seasons, going from 7° in 2023, to 6° in 2024, to the aforementioned 5°. Unfortunately, Statcast only started recording bat tracking data in 2023, so we can’t confirm that the pattern stretches back to 2021. Is it possible that the angle at which Bohm swings makes his batted balls particularly vulnerable to the winds at CBP? And is it possible that the change in Home/Road splits he experienced was the result of his attack angle declining?
I don’t quite have the data or expertise needed to check on that. And even if I did, there’s a good chance that I’m entirely off-base there. We’ll learn more as time passes. Perhaps Bohm’s performance with the wind at home will stay on the current trajectory. Or perhaps he’ll start hitting better at home, buffeted by the winds of change.
