It is very difficult to release the ball with the same speed, but some dealers can do this. It is called a dealer signature. As long as there is little or no deflection from the metal stops on the roulette wheel it is possible to predict where the ball will drop. If a number repeats often within 100 spins you may have found a biased wheel that can turn the house advantage around to your favor. The biased wheel gives you an opportunity to overcome the house’s advantage. There are special chips for playing the game of Roulette. The chips have to be bought before playing the game. Don’t forget to exchange you Roulette chips for regular casino chips before you leave the Roulette table. Try to avoid 5 number bets, as it has the least profitable payback of all the bets. The house advantage on a 5 number bet is a whopping 7.89 percent. If you choose between European and American Roulette, then play European Roulette as here you have more chances of winning. When playing European Roulette don’t forget about the Surrender option. And always try to manage your money.
One of the strategy for roulette is boldness. This is a strategy where your goal is to double your money. In a negative expectation game, your best chance of doubling your money is to bet it all once on red or black, or even or odd, and cross your fingers. You'll have a 47% or so chance of doubling your money.]
Remember that there is no any roulette strategy. So don't pay money for it. Set a goal before you start gambling. Stop gambling if your goal is reached.

Roulette is a wheel game. The wheel placed in a bowl spins on an axis. The wheel is divided into slots: American roulette wheel into 38, European - into 37.The numbers are either red or black. The 0 or 00 are green.8 players can participate the game at the same time.Accordind to the rules the croupier spins the wheel of roulette in one direction and then rolls the ball around the edge of the wheel in the opposite direction.After the ball had fallen at one of the slots and stopped, the croupier announces the winners.You are to guess the number of the slot in which the ball will stop and to make the right bet. When you start the the game at the roulette table, you have to buy chips from the croupier which differ from all other chips in the casino. Each player has chips of his own color that's why the croupier knows who to pay off at the end of each spin. When the croupier announced "No more bets", hlayers cannot make bets.After the result of the spin is determined, the croupier puts a marker on top of the winning number on the table.The marker is placed on top of the chips, if there are bets on that number. The croupier sweeps off the table all losing bets and after that the winning bets are paid off.
In some casinos there exist some special rules.

In Prison/En prison
When the ball falls on zero, red/black, odd/even and first half/last half bets will not be collected by the croupier - instead they will have to stay on the table - in other words they are in prison. In the next spin the players have a chance of winning their original bet back - if their bet wins they will get their original bet back but with no additional win. If it's zero again the bets remain in prison one more time and so on. In prison rule is a considerable advantage for players because the house edge is reduced to 1.35%.

La Partage
In case the ball stops at zero slot, the croupier will not fully collect red/black, odd/even and first half/last half bets. The croupier will collect only a half of player's bets and will return the rest to the players. As well as the In Prison rule, the La Partage rule also reduces the casinos edge to only 1.35%.

The wheel is unbalanced.
Since Jaggers discovered the unbalanced wheel many casino patrons today are on the look out for the unbalanced wheel in order to make some fast cash. The truth is the unbalanced roulette wheel no longer exists. The story of Jaggers is well-known among casinos, that’s why they examine the wheels all the time. The wheel is checked several times before it is open to public. In the case of an unbalanced wheel they recalibrate it at once.
2. Most gamblers believe that with every new spin the chances of the ball landing in the number that has not been hit yet become much higher.
This is absolutely false. Every number has the same chance of hitting-38:1. If the ball hasn’t landed in this very number for a long period of time it doesn’t mean that it is more likely to do it in a short while. Roulette is a pure game of chance. With every spin the chances of hitting any number are 38:1.

The Martingale is the best-known roulette betting system. It varies greatly. You should follow such principle: if you win, then pocket your bet. If you lose, you should double your previous bet.By doing this in case you win, you get back your previous loss and one more unit.And so on.
The Martingale System works great only in case you have an infinite bankroll and no betting limits.
Another popular roulette system is the d'Alembert system. This system assumes that after a win, a player is less likely to win again.So after a win, you subtract a chip from your bet. The d'Alembert system also assumes that you are less likely to lose after a losing spin, so in that case, you add a chip to your bet. The fact that the roulette wheel has no memory and each spin is an independent trial with exactly the same odds of a win or loss is the previous spin is a weak point of the system.