Mike_nyc wrote:this has been great info thanks alot. after calculating all the xH's, he calculates the SD of these values as part of his formula, correct?

Correct. Once you calculate xH, you have a counting stat that works just like SB or HR. So you calculate the z-score just like you would for those categories:

AVG value = player_xH / stdev(xH)

SB value = player_SB / stdev(SB)

etc.