Part I: Games & Gaming · Wheel Games — Roulette

Deflectors (Diamonds)

Roulette

Small, diamond-shaped obstacles embedded in the lower ball track of the roulette wheel bowl. Their purpose is to disrupt and randomize the ball’s trajectory as it descends from the ball track toward the rotor and pockets, ensuring unpredictable outcomes. Deflectors are strategically placed at various angles around the wheel circumference. High-quality wheels feature precision-manufactured deflectors made of metal or hardened materials that resist wear. If deflectors become damaged, loose, or worn, the wheel’s randomness may be compromised, potentially creating exploitable biases that advantage players or teams could detect.

In practice

Premium wheel manufacturers like TCS John Huxley use Starburst separator rings and randomized deflector configurations. Maintenance schedules should include regular inspection of deflectors for wear or damage.

One entry from the Casino Industry Glossary — 1,157 terms written for surveillance, compliance and operations professionals rather than for players. Definitions describe industry usage; where a term carries a regulatory meaning, verify against the instrument that governs your jurisdiction.