Roulette is one of the most iconic and visually thrilling games available on any casino floor.

The variation you decide to play has a massive impact on your mathematical chances of walking away a winner.

Understanding the Wheel Layouts

The European roulette wheel features 37 slots in total: numbers 1 through 36, plus a single green zero.

The American wheel, however, features 38 slots: numbers 1 through 36, a single zero, AND a double zero (00).

• The single zero is the only reason the casino makes a profit on Red/Black or Odd/Even wagers
• Adding a second zero effectively doubles the speed at which you will statistically lose your bankroll
• The visual layout of the numbers on the wheel itself is also completely different between the two versions

The 'En Prison' and 'La Partage' Rules

In addition to the better wheel layout, some European (often called French) tables offer incredibly favorable special rules.

The 'En Prison' rule allows your even-money bet to remain 'in prison' for the next spin if a zero hits, giving you a second chance.

By simply choosing the European wheel, you instantly double your expected mathematical longevity at the casino.