No one can predict this, it's all about luck and how much risk you wanna take. Although betting on football and cricket matches you can use statistics to reduce the risk and watch out for highest probabilities and that's pretty much it. I would advice that if you are gambling then just play for fun and don't addicted towards gambling otherwise it will wreck your life.
If you are just newbie gambler, or you gamble for fun without really learning the math behind it, then you are right there is no way to tell if you win o lose. But if you are on a higher level and you actually know what is going on behind the scenes of game then you CAN predict your outcome.
Not accurately but close enough and of course we are no talking here about pure LUCK based games like Slots, Roulette or Dice.