But the payout for this type of bet is only 35 to 1, so the house has an edge of 2/37 (or 2/38). For example, the true odds of hitting a single number are 1 in 37 (or 1 in 38 on an American roulette wheel). The house edge in roulette comes from the fact that the payout for most bets is less than the true odds of winning those bets. These bets all have payouts of 17 to 1.īets can also be made on columns or dozens (betting on 12 numbers at once), as well as betting on red or black, or even or odd numbers. Other common bets include splits, which are bets made on two adjacent numbers streets, which are bets made on three numbers in a row and corners, which are bets made on four numbers that form a square.
