What is the chance of 10 games losing streak?

bigday, on Jul 07 2014 - 12:01, said: I think most people in this forum have experienced losing streaks. However, if a chance to win a game is roughly 50% (for average player like me) then the chance for something like a 10 games losing streak is about  0.5 ^ 10 = 0.0009765625 = 0.09765625 (%) this even smaller than 0.1% or one thousandth. This method of calculate while is very crude and unsophisticated, do make me very uncomfortable. If the odd of the 10 games losing streak is such a small number, then why does it happen so frequently     You can call it a tin foil hat theory if you want, but please show me a better way to calculate the right number.