As a ballpark guess of the probability of this:
House edge (assuming banker bet every time) = 1.06%
=> assume probability of winning = 0.4947
7.3m @ 150k / bet = 48.7 bets profit
Assume 30s / hand over 7 hrs = 840 hands
=> need probability of winning at least 444 (losing 396)
Using a
binomial calculator with p = 0.4947, n = 840, x = 444, the probability of winning at least this much is
2.7%.
I guess the chance of doing this without going busto first is a bit lower, but who can say if he would have rebought.