Ian Happ is Commanding the Zone, Creating His Own Batted-Ball Luck

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Image courtesy of © Matt Marton-Imagn Images

It turns out that when a hitter creates high-quality contact, good things tend to happen. Ian Happ is learning as much here in the month of September. 

Obviously, Happ was trying to do that all along, even during a sleepy first half. It just wasn't happening for him. Compound some brutal luck with questions around the quality of his baserunning, and it would have been entirely reasonable to suggest one of the Chicago Cubs' top outfield prospects start to eat into his playing time (and hey: we did). It's funny how quickly those questions and their accompanying suggestions begin to fade, though, when the chips start falling in your favor a little more frequently. 

There wasn't a lot to love in Happ's line through the end of August. Despite a characteristically high walk rate (13.2%), he spent the majority of the year turning in just-okay production everywhere else. His line read .234/.335/.402, with a 109 wRC+ that scratched just a bit above that average threshold. Even his .168 ISO feels a little weird to invest in, given that it was propped up by a torrid .274 mark in June (which was also, ironically, a month in which he checked in with a lower-than-average walk rate and an on-base percentage under .300). Ultimately, it's all fine. Happ's 2025 has been acceptably above-average, even with some of the shortcomings that have manifested throughout. 

When we look at the negative perception that developed around Happ's production, much it likely stems from a slog of a stretch between June and July. Despite the power output in the former that allowed his ISO across the two months to sit over .200, Happ's line included an average of just .198 and an OBP of only .300. He had a pedestrian (literally, since he hit for such a low average that he badly needed his walks) 102 wRC+. It was a struggle that led to the noted questions about playing time, especially with Owen Caissie demonstrating proficiency upon his arrival at the big-league level. Working against Happ in all of that (beyond the narrative, of course) was his batting average on balls in play.

His BABIP in June checked in at just .200; the July figure was .196. There isn't necessarily an evident reason for those struggles, either. Sure, Happ's ground-ball rate in those two months was higher than in any other month this year (37.8% in June, 40.7% in July), and yes, his BABIP on ground balls was just .192. But the rate in each month was at or below his career average, and his BABIP was only .083 on fly balls across the two. Those are two of the first areas we look when looking at BABIP issues, but they reveal almost nothing. 

There were also some mechanical issues that we noted back in July that could point to the source, but much of that came from Happ's hitting right-handed and none of it was sustained to the point where we could draw any firm conclusions. That's to say nothing of an oblique injury he sustained in early May that could have had a bearing on the subsequent two months. It seems as though the struggles were multifactorial; there's no one culprit here.

Regardless of the reasons, however, it's clear that Happ now has his BABIP woes behind him. As the Cubs' offense has ascended in September, Happ has been a driver of the improvement we're starting to see from a group that was anemic for roughly two months. Through the 15 games in which he's played, Happ's wRC+ (193) trails only Nico Hoerner among Cubs regulars. He's bringing a .321/.443/.625 line to the table. Most notable for our purposes, however, is the fact that Happ's BABIP sits at a robust .342. 

He actually had an even higher BABIP (.349) in May. The difference lies is the fact that while Happ is finding success everywhere else on the stat sheet this month, he hit just .243 in May (99 wRC+) and struck out nearly 30 percent of the time (29.3% strikeout rate), while bookending the month around that oblique issue. Happ struggled to make contact within the zone in May as well, with an in-zone whiff rate of nearly 21%. So there was some good fortune, but not a whole lot else to lean on. 

It's a stark contrast to what we're seeing in September. Happ's overall contact rate remains similar to what he turned in in May and throughout the rest of the year. What he's doing with that contact, however, stands out: 

Happ's 58.1% hard-hit rate sits at least 12 percent above any other output he's posted this year in an individual month. The quality of contact is working in conjunction with an increase in the flyball rate (41.9%) to help Happ overcome the BABIP monster that plagued him so much in the middle months of the year.

There isn't much in the approach that's changed; Happ has been a touch more aggressive but is still demonstrating much of the same contact and whiff tendencies we've seen all year. What is notable, though, is what's happening with Happ's bat within the zone:

Attack direction speaks to the horizontal movement of the sweet spot of the bat as it makes contact with the ball. Happ's attack direction has been getting closer to zero since July, in a pretty steep trend. What this means in his case is more opposite-field contact; his Pull% has dropped by at least 5 percentage points between each month since July. This is indicative of a strong grasp of the zone.

Happ's catching the ball where it's pitched and executing the contact accordingly. His zone profile since the start of August tells us that much. Here's where Happ is getting pitched as a right-handed hitter: 

And here's where he's seeing the ball as a lefty swinger: 

Opposing pitchers are working predominantly outside against Happ, regardless of the side of the plate from which he's working. The decreasing attack direction is illustrating the idea that he's acutely aware of this and acting as such, working to the opposite field at a higher rate than he had been in July, which was the month of his greatest struggle this month. Quality contact in the ideal direction for where the ball is pitched should equate to more batted-ball "luck," which is really just the residue of design.

It's been noted both on social media and from colleagues, but it remains somewhat humorous that at this current pace, Ian Happ is going to give us a nearly identical season to what he's turned in for the last few. But it hasn't been without some extreme month-to-month variance in the production. Some of that is the nature of baseball, which would be an easier solution to accept if it weren't for the absence of a surefire explanation for the low points, particularly in 2025. 

Regardless of the reasons for the mid-year struggle (mechanics, health, bad luck), it's apparent that Happ is now a hitter in control. Always in possession of good discipline, Happ has started to make the zone work for him. Combine the two things, and you have a guy in the process of spinning the entire narrative in his favor at the most crucial time of the year.

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