Freddy Peralta looks like he’s back to his old self. Over his last five starts with the Rays, he has a 2.73 ERA and 3.80 FIP while cutting his walk rate from 9.4% with the Mets to 4.5% with the Rays. Kyle Snyder and his team helped Peralta clean up some mechanical things to help him get lower down the mound, but those were relatively minor tweaks compared to how Peralta has changed the way he uses his arsenal.
We know the Rays pitching team preaches two main things: winning the race to two strikes and expanding the zone with two strikes. It’s easy to tell a pitcher, “Okay, get to two strikes and then make them chase.” But what does that actually look like in practice?
It starts with how Peralta is attacking the zone. He’s actually finding the zone less with the Rays compared to his time with the Mets (40.5% vs 43.2%), but his strike rate is up (64.1% vs 60.5%). In other words, he’s throwing fewer pitches in the zone but getting more strikes overall. That’s the result of changing how and where he uses each pitch.
| Zone% with Mets | Zone% with Rays | |
| Four-seam | 50.0% | 47.7% |
| Changeup | 34.9% | 23.2% |
| Curveball | 34.8% | 61.9% |
| Slider | 30.5% | — |
| Sweeper | 47.4% | 27.0% |
Aside from Peralta’s fastball, all of his secondary shapes are being used differently. The changes are dramatic. Peralta has taken his changeup and sweeper out of the zone more often while dramatically increasing the rate at which he lands his curveball in the zone. Each pitch now has a more defined job.
Two important pieces of a fastball-offspeed relationship are velocity separation and vertical approach angle (VAA) separation. His offspeed pitch doesn’t have much velocity separation from his fastball which makes it harder to generate in-zone whiffs, so the Rays are having Peralta lean into its vertical separation from his fastball and use it primarily as a chase pitch. His overall usage of it has increased – especially against righties – which makes sense because it’s his best pitch. But the bigger change is where he’s using it: out of the zone rather than trying to steal strikes with it. His sweeper is being used in a similar way, but mostly for chases against righties.
Peralta’s curveball usage is most interesting. It’s a relatively platoon-neutral shape, but it lacks the velocity and depth to suppress contact. The Rays have helped him shift his usage of the pitch to being more of a taste-breaker to earn called strikes in counts where batters don’t typically swing at breaking balls. Peralta is throwing curveballs nearly a quarter of the time on the first pitch of an at-bat and getting just a 20% swing rate against it compared to his called strike rate of 54.3%. Peralta is taking advantage of that tendency by using his curveball to steal called strikes before hitters are ready to react to it.
Once Peralta gets to strike one, the rest of his arsenal can do what the Rays want it to do: attack the edges of the zone and force swings outside it. He’s throwing 45% fastballs and just under 40% offspeed pitches when he’s ahead or even in the count. The tunnel between those two pitches is excellent, allowing him to attack the zone without giving hitters an easy pitch to sit on. He’ll occasionally sprinkle in a breaking ball to keep hitters off balance.
Eventually, hitters will start to adjust and they might be looking to do damage on a first pitch curve in the zone. Peralta and the Rays might already be preparing for his next adjustment – a cutter.
It appears Peralta introduced a cutter in his most recent start against the Braves:
I circled two pitches that Hawkeye tagged as four-seamers, but their movement profile looks much more like a cutter. Peralta is clearly still developing the shape, so it will likely vary as he continues to refine it. The two pitches sat in the upper 80s with less vertical movement than his four-seamer and similar glove-side movement to his breaking balls.
That combination could make the cutter a useful “bridge” pitch to his sweeper against righties. It’s relatively easy for hitters to distinguish Peralta’s four-seam fastball from his sweeper out of the hand, but a cutter occupying the space between them gives hitters another shape to account for. Both cutters appeared to be intended down and just off the plate glove-side. That’s where Peralta’s breaking-ball shapes are most effective, so the cutter could add another layer of deception to the way his arsenal interacts.
Cutter shapes also tend to play platoon-neutral, so this is something he can deploy against lefties but with a different purpose than being a bridge to a breaking ball. It’s not a perfect tunnel because of the difference in vertical movement, but the difference in velocity between his cutter and offspeed is essentially nonexistent. The cutter and offspeed pitch sit in the same velocity band, but have nearly two feet of difference in horizontal movement. That could create a difficult decision for hitters looking to protect with two strikes; if Peralta can maintain those shapes, the two pitches could be difficult to distinguish out of the hand.
It will take some time for Peralta to land on a consistent shape, but I’m looking forward to seeing him increase its usage into October. The curveball has already given Peralta a new way to steal strikes early in the count; the potential cutter could make those strikes harder to predict while giving his sweeper and changeup more room to work once he’s ahead. That makes it an especially natural fit for the Rays’ philosophy.
Cody Bellinger
Jake Burger
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