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The two-seam fastball is the most undervalued pitch in baseball. And the Royals know it

For nearly every pitcher in baseball, establishing a quality fastball is one of the most essential steps for someone to find success. Fastball pitches (4-seam, 2-seam, sinker, cutter) make up just shy ...
New Scientist

Seams on a baseball shift its trajectory by unexpectedly large amount

Seams on a baseball shift its trajectory by unexpectedly large amount When a baseball is tilted and spinning just right, its raised, hand-stitched seams skew the process by which its wake is created ...