Largest 4-seam spin rate differences, 2021 vs. 2015
— Codify (@CodifyBaseball) June 4, 2021
(velocity difference in parentheses)
+610 Bauer (+0.3)
+397 Cole (+0.9)
+357 Nelson (-0.3)
+332 Kershaw (-3.6)
+314 Lyles (-0.4)
+231 Hendriks (+1.5)
+218 Boxberger (0.3)
+206 Duffey (+1.5)
+198 Givens (-0.8)
+179 MadBum (-1.6)