Double Ball Roulette (Evolution)

Double Ball Roulette was released in 2016 by Evolution and, in fact, became the first roulette with two balls. Structurally, it is a classicEuropean versionIn real-money play, with a single zero, but with a number of unique features and payouts. The game presents two betting grids: the classic layout in the center of the screen marked from 0 to 36, and on the left, and an additional field highlighted in gold. Since the game has two balls, let us first examine how bets work on these fields.

Standard betting grid. Outside betshere are highlighted in gold. To win with these bets, both balls must land in the same sector. Accordingly, their payouts are increased (see the paytable below). also, there is a red-black bet. When one ball lands on red and the other on black, the payout is 1:1. Forinside betsFor most readers, it is enough for one ball to land in the chosen pocket. However, unlike outside bets, their payouts are reduced (see the paytable below). In addition, there is a special bet with the “35 to 1” icon. If you place this bet and, consequently of the spin, both balls land in the same pocket, the payout will be 35:1.

Golden betting grid. On the left side of the screen, there is an additional field where you may place astraight-upbet for both balls. If both land in the same pocket, the player receives a payout of 1300:1. Unlike the bet with the “35 to 1” icon, the 1300:1 payout is possible only on the specific number selected by the player.

Based on this, the actual game flow is as follows:

1. Players are given 18 seconds to place their bets.
2. After that, the dealer places two balls into a special device that launches them simultaneously using compressed air.
3. To win inside bets (Straight, Split, etc.), it is enough for one ball to land in the chosen pocket.
4. To win outside bets (red/black, even/odd, dozens, columns), both balls must fall into the corresponding category.
5. If both balls stop in the same chosen pocket from the golden betting grid, the player receives a 1300x payout.
6. The process then repeats.

Since multipliers apply to Straight Up bets, and Straight Ups without multipliers have reduced payouts (29:1 instead of 35:1), it is logical that this affects the RTPof the game. The provider itself states that the RTP for Straight Ups is 97.10%. However, according to the RTP calculation formula, this is not entirely accurate. Let us calculate:

$\mathrm{RTP}=100\%-\left(\right|\frac{(-\mathrm{bet\; amount}\times \mathrm{odds\; of\; loss})+(\mathrm{bet\; payout}\times \mathrm{bet\; amount}\times \mathrm{odds\; of\; win})}{\mathrm{Bet\; Amount}}|\times 100\%)$

Now, let us substitute the values of the variables. The bet amount is $10, and we already know the payout is 17:1. The chance of winning is 1/37, and the chance of losing is 36/37. As we can see, the result differs greatly from the stated one. However, this is a result of the modified game mechanics and the possibility of winning 1,300 times the stake.

$\mathrm{RTP}=100\%-\left(\right|\frac{(-10\times 36/37)+(17\times 10\times 1/37)}{10}|\times 100\%)=\mathrm{48,64}\%$

Double Ball Roulette is one of the most unusual games from Evolutionand perhaps the entire live roulette industry. At first, two balls and an additional betting field may seem confusing. However, after playing for some time, everything becomes clear. The game is an excellent choice for players who prefer outside bets. Here, they have a higher payout than in standard European roulette. This means that if you favor progressive approaches that are based, for instance, on even-money bets, Double Ball Roulette will be a great option. After playing for some time, several tips can be highlighted:

• From our testing, do not rely on bets on the golden betting grid. Even though the 1300x win sounds tempting, in practice, even if you cover the entire field with bets, there is no guarantee that both balls will land in the same pocket.
• Use the bet on any number (“35 to 1”). In my opinion, this is among the most convenient side bets in live roulette. The idea is that you may place 1 unit on this bet, and if both balls land in any pocket, you will receive apayoutFor most readers, of 35:1. Yes, it is not x1300, but this bet will be an excellent addition to your usual approach. For example, while making any bet, place 1 unit on this option as well.