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Applying Statistics to Scouting

August 2, 2009

I’ve always thought it would be interesting to apply statistics to the traditional 20-80 scouting scale. Scouting evaluates a player’s skills both for the present and the future. While statistics cannot project into the future as well as traditional scouting can, it can give just as good, if not a better, overall evaluation of a player’s contributions on the field.

The Scouting Scale (courtesy of Baseball America):

80: Outstanding
70: Well-Above-Average
60: Above-Average
50: Major League Average
40: Below-Average
30: Well-Below-Average
20: Poor

Which categories I will be evaluating, and how (all statistics aside from EqBRR can be found on Fangraphs. EqBRR can be found on Baseball Prospectus’ site):

Contact: Contact %
On-Base and Plate Discipline: O-Swing %, BB%, P/PA
Power: ISO, 2B/PA, HR/PA
Situational: RE24
Baserunning: EqBRR
Defense: UZR

Players are not evaluated on just a single season; they are being evaluated on a weighted 3-year average to identify their “true talent” level.

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