If I would do it the way you suggested the result after the following three hands would be:
- Code: Select all
Player Position Stacksize Hand Number Action VPIP% P2 (in BB)
P1 SB 10bb 1 Fold
P2 BB 15bb 1 - =0/1 = 0%
P1 BB 9.5bb 2 Fold
P2 SB 15.5bb 2 - =0/1 = 0%
P1 SB 10bb 3 Raise
P2 BB 15bb 3 Call =1/2 = 50%
So VIPIP for P2 in the BB (for an effective stacksize* between 9 and 12bb) would be 50%, although he only had the chance to vpip one time and it should be 100%!
* effective stacksize defined as min(stack p1, stack p2)