[Gullanian]

A good way of explaining running it x times is:

The river card is the last card to come. Player 1 is 80% favorite, player 2 is 20% favorite.

1 card comes: 80% player 1
run it 47 times: 80% player 1


running it 47 times will give each player their % odds of the pot exactly. So just running it less than that is increasing variance