Cool moneyline, you should learn poker, you can get a much bigger edge and they won't kick you out.

When I said 50 losses out of 100 I didn't mean 50 straight losses. Just 13 more losses out of the 100 than expected (I don't think that's unreasonable if you win 63% of the time). Ofcourse like I said it depends on the variance of your trading results.

Another formula I read about today in "New Trading Systems and Methods" is to use the Student t-test (a statistics formula). It's a bit too complicated to explain right now but it might be worth looking up. It also compares your expectation per trade and the variance to give you an idea of how reliable your results are.