Reply to "Velocity"

2017LHPscrewball5,000+ posts

Saw a note earlier in this thread about LHP speeds - specifically "less 3". I have always wondered what the differential between RHP and LHP was in terms of FB speed. Does anyone have any comments about the 3 mph difference as about right or should it be more or less?

Also, has RPM gotten any recent traction? Have read that a high RPM FB can look 2-3+ mph compared to a low RPM. Is anyone, including MLB folks, working with that measurement?

9/1/151:50 PM

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