Four-seamers
The surprise in the research was that velocity was the second-most important facet of a fastball, second to vertical movement. So this isn’t a list of the hardest-thrown fastballs in the league.
Best Four-seamers of the Year. Sorry it didn't copy well. the numbers are # of pitches and the QOS_PLUS
Taijuan Walker
315
117
Walker Buehler
282
117
Taylor Widener
222
114
Patrick Sandoval
229
112
Kyle Hendricks
215
112
Minimum 200 thrown
t might be weird to see Taijuan Walker at the top of this list, but he gets a lot of movement on the pitch, and he’s got decent velocity, and the results kind of agree — it’s his best pitch relative to other pitches of the class. Yeah, his slider gets a few more whiffs, but it gets below-average whiffs for a slider, and his four-seam gets nearly twice the whiffs of an average four-seamer.