You can still win, you just did the wrong move of just betting according to your choice.
I know its hard to say that you can still win after all of those losses that you've come with. But that's how gambling works, you can expect the unexpected and not all the time the game is with you. Should I say, gambling isn't for everyone.
There is no doubt he still cannot win, but at the same time, he should also understand that this is gambling and what is being done here is to make a prediction to something that has not happened yet and for heaven sake, it is a prediction and you are just trying to play by luck, which sometimes, you really may not. You may even analyze conditions, see which team it would be favorable for, and then shit happened. It is the nature of gambling and there is nothing anyone can do about it. The only thing is just to not expect so much from it and gamble what you can afford to lose.