Part III: Business & Regulation · Gambling Mathematics & Probability

72. Heat

Advantage Play

“Heat” is casino industry slang for the scrutiny and surveillance attention directed at a player suspected of advantage play. Signs that a player is receiving heat include: pit bosses watching the game closely, increased surveillance camera focus, phone calls from the pit to surveillance, dealers making unnecessary conversation to disrupt concentration, reduction in comps or rated play value, and ultimately being asked to leave or being barred from blackjack play. Professional advantage players employ “camouflage” techniques — deliberately deviating from optimal play in low-stakes situations, tipping dealers generously, engaging in casual conversation, and varying their appearance — to reduce heat. Surveillance personnel coordinate with pit bosses to manage heat levels and determine when to back off or bar a player.

In practice

A ” backoff” is a polite request to stop playing a specific game; a “bar” is a formal trespass notice prohibiting entry to the casino. “Flat betting” (betting the same amount regardless of count) is the most effective camouflage but eliminates the counter’s edge. Some counters alternate between counting and non-counting sessions to appear as regular gamblers. Heat management is a critical skill for professional advantage players.

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.