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May 3, 2013 9:00 am

Raising Aces: Time to Unwind


Doug Thorburn

Why historical changes in pitching mechanics haven't always led to improvement.

The pitching delivery has evolved throughout the history of Major League Baseball. There are elements of old-school pitching mechanics that are now artifacts of a bygone era, and though one would expect the modern iteration of pitching instruction to have greatly progressed over time, there are some ways in which the pitchers of today have regressed compared to their predecessors. A few of these topics have been covered in previous editions of Raising Aces, such as the modern-day emphasis on angles and deception that has resulted in over-the-top arm slots and closed stride patterns.

The windup is a fundamental component of the pitching delivery, one so basic that its utility in the game is never questioned, yet it serves as a classic example of the ever-changing practices of the pitching-industrial complex. Pitcher windups have morphed over the past 70 years, and what was once a series of movements has been simplified to the current model, which basically involves a side-step and pivot, essentially putting the pitcher in the stretch position at the time that he initiates the lift phase of his motion.

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