However, American-style tables add a second green square (the double zero), and that bumps the house edge up to 5.26%. It’s the presence of the green square that gives the casino its in-built advantage – in this case, 2.7%. These will have one green zero square alongside the 36 red/black squares. By far the biggest advantage you can give yourself is to opt for a European- or French-style table.
Unlike a highly skilled game like blackjack, there’s not that much you can really do to change the odds in roulette.
