Nanook,

Maximum Drawdown of a betting bank is basically the biggest DIP from a bank's peak point (in the period in question) to its lowest point (in that same period). It is not necessarily the difference between the highest point EVER and the lowest point EVER but it could be. The low has to come AFTER the high and the maximum Drawdown is the largest recorded DROP or descent (hopefully before the bank recovers and surpasses its former glory!).

More than likely, there would be a number of collects and small upward movements in the bank balance within the maximum drawdown period unless, of course, the poor old bank goes into extreme (vertical) freefall and you begin to ponder on the sanity of betting at all.

I've got no idea about "chi-squared" or "win drawdown". Sounds like they could damage the brain, though!

Cheers,
QFB