Kirby Lee and David Frerker-Imagn Pictures
Earlier this week, I used to be writing about Reds rookie Chase Burnsthe hard-throwing former Tennessee and Wake Forest ace who was about to make his first main league begin. Burns throws actually onerous — 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 properly, it seems.)
Anyway, the Angels have a pair guys who’re fairly excessive on that record. 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 scenes. Pull Skubal? Jacob deGrom? Dylan Stop? These guys can go take a hike.
Soriano’s teammate, Jack Kochanowiczis not any. 16 on the starter velocity leaderboard. I’ll endlessly affiliate Kochanowicz with a sport I caught close to the tip of final 12 months when the White Sox had 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 look at a meaningless September sport between two really dreadful groups, nevertheless it ended up being a reasonably good sporta pitchers duel between two huge, hard-throwing rookie starters: the 6-foot-7 Kochanowicz and the 6-foot-6 White Sox righty Jonathan Cannon.
Yusei Kikuchi throws onerous for a lefty; so does Reid Detmerswho 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 crew 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’ll be able to even see the Angels’ affinity for velocity of their current prospect acquisitions. Forward of final season’s deadline they traded for hard-throwing righty George class. They drafted Chris Cortez final 12 months, and Ben Joyce — Burns’ one-time teammate and the hardest-throwing faculty reliever of all time — again in 2022.
Which jogs my memory: Joyce may have the ability 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 total 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 pace is to their detriment.
Nicely, let’s discover out. This season, almost 300 pitchers have thrown not less than 30 innings within the majors; I plotted the typical velocity of their hardest fastballs (four-seamer, sinker, no matter it might be) towards their strikeout charges.
No, seems that as velocity goes up, strikeouts go up. The alternative is true for contact fee, which is what a pitcher desires; increased strikeout fee is sweet, increased contact fee is dangerous.
To date this season, the Angels have 10 pitchers who’ve thrown not less than one inning and registered an above-average imply fastball velocity.
The Arduous-Throwing Angels
Identify
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 damage earlier than they may put up significant numbers, however each different hard-throwing Angels pitcher has a higher-than-average stroll fee, accompanied typically by an unremarkable strikeout fee. Actually 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 large 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 12 months, 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 put up 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 mushy 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 purple dots off to the left are Hendricks and Tyler Andersonand 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 purple 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 Kind 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 95.6 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 87.4.4 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 comparable 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 instances this 12 months, together with Kochanowicz and Soriano.
I moved on to sinkers, 94 mph or tougher, 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’ll be able to train 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 school junior, and goals to hit 102 or 103 sooner or later. It’s potential.
But it surely’s onerous. Guys who can throw as onerous as Soriano and Kochanowicz with any form of management on a starter’s workload are fairly uncommon. They simply haven’t found out 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 downside is systemic.
