These bets are not based on how the table is laid out but on the wheel’s layout. The announced or call bets are only available on European and French roulette. Because there is a single zero in European roulette, the house edge is lower than American roulette. These pockets are numbered from 1 to 36 with only one green zero. With the addition of the second zero the pockets on the wheel increase to 38. So, the double zero increases the house edge.
The house edge is higher because the American roulette wheel has an extra zero. More Online Casinos American Roulette Wheel SequenceĪmerican roulette has a house edge of 5.25%, which is higher than the other online roulette variations.