The five frames of reference refers to how Major League scouts grade a players ability. The five frames are Running, Throwing, Fielding, Hitting and Hitting with Power. Each are then graded on what is referred to as the 80-20 scale. 80 being the Major League best and 20 the Major League worst. For example, you may hear scouts grade a pitcher with a 88-90 MPH fastball as a 50, or Major League average. There are just a few pitchers with an 80 fastball...Randy Johnson and Aroldis Chapman come to mind.
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