There are a few things that you need to know in order to answer this question. First, roulette is a random number game that is played with a wheel of 36 slots. Second, there are six different numbers that can be drawn from the wheel – 1, 2, 3, 4, 5, and 6. Third, each time the wheel is spun, it will either yield a red or black number.
Fourth, the probability of any given number appearing on the wheel is not exactly known, but it is thought to be about 1 in 36. Fifth, whatever number is drawn becomes the new “dealer’s up” number and all bets are reset. Sixth, if the player’s number matches the dealer’s up number, then they win the game. With all of this information in mind, let’s take a look at some odds for seven reds in a row.
Assuming that you are playing at a reputable casino where fair play is practiced and all dice are certified fair by an independent lab (which is not always the case), there is about a 1 in 36 chance of rolling seven reds in a row on any given spin of the roulette wheel. This means that if you were to bet $100 on each individual red roll and then bet $700 on the outcome of the entire game (seven rolls), your theoretical return would be $3700 if you were to win and nothing if you lost. Of course, this assumes that you don’t get any other numbers while rolling seven reds in a row – which is unlikely given that there are 26 other possible outcomes on each spin of the wheel!.
