Earlier this week, I used to be writing about Reds rookie Chase Burns, the hard-throwing former Tennessee and Wake Forest ace who was about to make his first main league begin. Burns throws actually exhausting — at all times has — so I dialed up the fastball velocity leaderboard to see how he stacked up towards starters on the main league stage. (Fairly nicely, it seems.)
Anyway, the Angels have a pair guys who’re fairly excessive on that checklist. José Soriano’s four-seamer averages 97.7 mph, which is one-tenth of a mile in need of what Burns managed in two Triple-A begins, however up right here within the real-world majors, that makes him the hardest-throwing certified starter other than Paul Skenes. Tarik Skubal? Jacob deGrom? Dylan Stop? These guys can go take a hike.
Soriano’s teammate, Jack Kochanowicz, isn’t any. 16 on the starter velocity leaderboard. I’ll eternally affiliate Kochanowicz with a recreation I caught close to the top of final yr when the White Sox have been bumping up towards their one hundred and twentieth loss. I went into it questioning why I’d chosen a career that obligated me to observe a meaningless September recreation between two really dreadful groups, but it surely ended up being a reasonably good recreation, a pitchers duel between two monumental, hard-throwing rookie starters: the 6-foot-7 Kochanowicz and the 6-foot-6 White Sox righty Jonathan Cannon.
Yusei Kikuchi throws exhausting for a lefty; so does Reid Detmers, who isn’t within the rotation anymore, however he’s been slinging it at 95-plus out of the pen. The Angels don’t solely chase four-seamer velo when buying pitchers — that is, in spite of everything, a workforce that simply signed Kenley Jansen and Kyle Hendricks this previous offseason — however they do like a hard-thrower. Robert Stephenson managed to throw simply two four-seamers this season earlier than he was stricken with biceps irritation, however these two pitches got here in at 97.9 mph and 98.5 mph.
You possibly can even see the Angels’ affinity for velocity of their latest prospect acquisitions. Forward of final season’s deadline they traded for hard-throwing righty George Klassen. They drafted Chris Cortez final yr, and Ben Joyce — Burns’ one-time teammate and the hardest-throwing school reliever of all time — again in 2022.
Which jogs my memory: Joyce may be capable to throw 105, however his strikeout fee and whiff fee traditionally have been puzzlingly gentle for a man with such a potent arm. The identical is true of Soriano, and Kochanowicz, and to a sure extent Kikuchi.
Regardless of all that velo, the Angels, as a employees, are simply twenty fourth in strikeout fee and fifteenth in general whiff fee, whereas main the league in stroll fee. Am I overrating the correlation between velocity and strikeouts? Maybe. Some folks (sarcastically, often individuals who soil their unmentionables on the mere considered Nolan Ryan) say velocity is overrated, and younger pitchers’ obsession with velocity is to their detriment.
Properly, let’s discover out. This season, practically 300 pitchers have thrown no less than 30 innings within the majors; I plotted the typical velocity of their hardest fastballs (four-seamer, sinker, no matter it could be) towards their strikeout charges.
No, seems that as velocity goes up, strikeouts go up. The other is true for contact fee, which is what a pitcher desires; larger strikeout fee is sweet, larger contact fee is dangerous.
To date this season, the Angels have 10 pitchers who’ve thrown no less than one inning and registered an above-average imply fastball velocity.
The Laborious-Throwing Angels
| Title | Velo | G | IP | ERA | FIP | Ok% | BB% | Contact% |
|---|---|---|---|---|---|---|---|---|
| Ben Joyce | 101.1 | 5 | 4 1/3 | 6.23 | 6.31 | 5.0% | 5.0% | 75.6% |
| Robert Stephenson | 98.2 | 2 | 1 | 0.00 | -0.93 | 66.7% | 0.0% | 25.0% |
| José Soriano | 97.7 | 16 | 93 | 3.39 | 3.23 | 20.3% | 10.9% | 74.4% |
| Ryan Zeferjahn | 97.4 | 33 | 28 1/3 | 4.76 | 4.98 | 29.0% | 11.3% | 71.7% |
| José Fermin | 97.1 | 10 | 9 1/3 | 4.82 | 4.57 | 33.3% | 11.1% | 68.8% |
| Jack Kochanowicz | 95.7 | 16 | 82 | 5.49 | 5.62 | 16.5% | 10.6% | 80.4% |
| Brock Burke | 95.6 | 36 | 30 2/3 | 4.11 | 4.74 | 18.6% | 10.7% | 79.4% |
| Connor Brogdon | 95.3 | 17 | 17 2/3 | 5.60 | 5.62 | 18.9% | 9.5% | 73.2% |
| Reid Detmers | 95.3 | 30 | 33 | 4.64 | 2.80 | 30.1% | 11.9% | 70.1% |
| Yusei Kikuchi | 94.7 | 16 | 89 2/3 | 3.01 | 4.20 | 22.6% | 11.2% | 78.5% |
| League Common | 94.3 | — | — | 4.06 | 4.06 | 21.9% | 8.5% | 77.1% |
Joyce and Stephenson obtained harm earlier than they might put up significant numbers, however each different hard-throwing Angels pitcher has a higher-than-average stroll fee, accompanied normally by an unremarkable strikeout fee. Definitely none of those guys, with their 97-mph fastballs and double-digit stroll charges, are placing up prime Edwin Díaz strikeout numbers or something.
Least of all Kochanowicz. The massive right-hander had a reasonably good rookie season by anybody’s requirements: 11 begins, 65 1/3 innings, a 3.99 ERA. However he struck out solely 25 batters, which is a Ok/9 of three.44 and a Ok% of 9.5%. That wasn’t simply the bottom strikeout fee within the league final yr, it’s the bottom strikeout fee in a season of 60 or extra innings since 2017. I actually didn’t understand it was potential to submit a strikeout fee that low within the 2020s.
It’s gotten higher in 2025, however not by a lot. Kochanowicz is hanging out simply 16.5% of opponents — a bottom-10 determine amongst certified starters — with a stroll fee of 10.6%. That provides him the fourth-lowest Ok-BB% within the league. And I’m not a FIP absolutist or something, however Kochanowicz isn’t producing outlier-level smooth contact; opponents are hitting .283 towards him, with a .308 BABIP and a 4.96 xERA.
Let’s return to that velocity-versus-Ok% graph, besides this time let’s limit the pattern to certified starters.
The 2 pink dots off to the left are Hendricks and Tyler Anderson, and sure, I’m conscious that whereas I’ve been writing about their organizational fixation on fastball velocity, the Halos have employed the 2 soft-tossing-est starters within the league.
Kikuchi is the pink dot nearly on the development line, whereas Kochanowicz and Soriano are high-velo/low-strikeout outliers. Are they simply throwing the identical stuff?
Kochanowicz and Soriano, by the Numbers
| 4-Seamer | Pitch Sort | Pitch % | Velo | Spin (RPM) | H-Mov | IVB | Whiff% |
|---|---|---|---|---|---|---|---|
| Jack Kochanowicz | FF | 18.2 | 95.7 | 2,254 | 7.5 ARM | 14.1 | 23.3 |
| José Soriano | FF | 7.4 | 97.7 | 2,192 | 8.3 ARM | 13.5 | 20.5 |
| Jack Kochanowicz | SI | 48.3 | 95.6 | 2,137 | 14.5 ARM | 2.9 | 16.4 |
| José Soriano | SI | 50.8 | 97.1 | 1,910 | 13.0 ARM | 3.1 | 18.3 |
| Jack Kochanowicz | CH | 12.1 | 89.7 | 2,107 | 8.1 ARM | 3.3 | 30.9 |
| José Soriano | FS | 7.6 | 91.8 | 1,441 | 10.1 ARM | -0.4 | 36.0 |
| Jack Kochanowicz | SL | 15.4 | 87.4 | 2,727 | 3.1 GLV | 0.0 | 28.4 |
| José Soriano | SL | 7.7 | 89.0 | 2,396 | 1.9 GLV | -0.5 | 46.9 |
| Jack Kochanowicz | ST | 6.0 | 82.5 | 2,828 | 13.6 GLV | -2.3 | 32.3 |
| José Soriano | KC | 26.5 | 85.2 | 2,502 | 12.0 GLV | -9.9 | 41.3 |
SOURCE: Baseball Savant
The secondary pitches are totally different, however each pitchers throw extra sinkers than four-seamers, and with related motion profiles. And these fastballs are simply not getting swings and misses. Soriano can get whiffs with all three of his secondaries, however not Kochanowicz.
I ended by making an attempt to determine if there was one thing about these two fastball motion profiles that generated sure outcomes. So I went into Baseball Savant and looked for all four-seamers that averaged between 94 and 98 mph, with between 13 and 15 inches of induced vertical break and between seven and 9 inches of horizontal break. Solely 4 pitchers have thrown such a pitch 100 or extra occasions this yr, together with Kochanowicz and Soriano.
I moved on to sinkers, 94 mph or more durable, with between zero and 4 inches of IVB and between 12 and 16 inches of arm-side motion. Three pitchers: Soriano, Kochanowicz, and Noah Murdock of the Port Ruppert Athletics. Murdock doesn’t throw a four-seamer in any respect.
You possibly can educate velo these days. On the draft mix, I talked to a pitcher who was throwing mid-80s early in highschool, topped out at 101 as a university junior, and goals to hit 102 or 103 sooner or later. It’s potential.
However it’s exhausting. Guys who can throw as exhausting as Soriano and Kochanowicz with any type of management on a starter’s workload are fairly uncommon. They only haven’t found out how you can miss bats. Given the identical factor occurred to Joyce, it’s price monitoring Cortez and Klassen as they transfer up the ladder, as a result of it’s potential this drawback is systemic.