Nothing is decided by chance alone. Rules, statistics, emotional states. Any number of invisible factors can combine to produce an unpredictable but inevitable result. So the victor is decided before the game even begins. Luck isn't a thing. For example, what's the probability of drawing the Ace of Spades from a deck with no Jokers? (It's 1 in 52, isn't it?) Normally yes. But what if its a brand new deck? The position of the cards in a new deck are typically identical, so that means if you take out the Jokers, and draw the card at the very bottom, it's the Ace of Spades almost 100% of the time. (Uh, hold on!) Oh, that's right, I didn't say a word about it being a new deck, did I? Rather, you didn't ask.
You see, being in the know gives you the power to turn the probability of winning from 1.92% to 100%. The more knowledgeable party will be the inevitable victor.