PokerTracker

How can create this stat in PT4?

According to sthief09's series on DeucesCracked "Search and Destroy," here is the formula:

(WWSF - (WtSD * WSD)) / (1 - WtSD)

WWSF, WtSD and WSD are all entered as decimals.

This can be done via the Configure --> Statistics window. You'll want to create a new stat in the Player section.

We already have WWSF, WTSD and WSD as stats. You can see their definitions on the Definition page - the key bit is in Value Expression. Duplicate and copy each one out, then create a new stat and do the math you need with each piece and it should work just fine.