The random element in backgammon is inconsequential: a good player will always beat inferior players over several games. What makes good players good is not that they know how to win when they have a good roll but the fact that with regular throws, each of their move is optimal, which guarantees a win over the duration of the entire game.

The same could be said of poker, where the element of chance appears to be huge but which doesn't matter over many games.