[jay_shark]

Fyi , I think having a s.d of 150 ptbb/100 to be much higher than the norm .

In any case , I computed the ror of a player with a win-rate of 8ptbb/100 hands and a s.d of 150 ptbb/100 hands to be 5.81% .

The probability of losing 20 buy-ins in a month must be lower than this number .