Marshall Effect

Marshall’s original theory that seam orientation—not just spin axis—alters pitch movement in ways not explained by the Magnus effect. A precursor to today’s seam-shift wake analysis.

Instructional Videos

May 23, 2025

Dr. Mike Marshall Baseball Mechanics Instructional Pitching Videos Dr. Mike Marshall, a baseball pitcher known for his groundbreaking approach to pitching mechanics, first released his instructional videos in 2004, later making his 2006 collection freely accessible on his website. As a former MLB pitcher and kinesiologist, Dr. Marshall dedicated his career to researching pitching biomechanics […]

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