Craps Dice Probability Glossary

Understanding Craps Terminology

Craps is one of the most exciting and mathematically complex games in a casino. Understanding the terminology is crucial for both learning the game mechanics and appreciating the underlying probability. This glossary breaks down the essential terms used in craps, including dice outcomes, betting options, and proper table conduct.

The game revolves around predicting dice outcomes and understanding how probability affects different betting positions. By mastering these terms, players can make more informed decisions and appreciate why certain bets have better odds than others. The mathematics of craps is grounded in basic probability theory combined with the specific rules of the game.

Key Craps Terminology

Natural

A roll of 7 or 11 on the come-out roll. If rolled on the first throw, a Natural wins pass line bets immediately, demonstrating one of the highest probability winning outcomes on the opening throw with a 8 in 36 probability.

Craps

A roll of 2, 3, or 12 on the come-out roll. These rolls lose pass line bets and win don't pass bets. Understanding the probability of rolling craps (4 in 36) helps players evaluate risk on opening throws.

Point

The number established after the come-out roll if it's 4, 5, 6, 8, 9, or 10. Once a point is set, the shooter continues rolling until either the point is rolled again (pass line wins) or a 7 is rolled (pass line loses).

Seven-Out

Rolling a 7 after a point has been established. This ends the shooter's turn and causes pass line bets to lose. The probability of rolling a 7 is 6 in 36, making it the most frequent outcome in craps.

Pass Line Bet

The most fundamental bet in craps. On the come-out roll, pass line bets win on Natural (7 or 11) and lose on Craps (2, 3, or 12). After a point is established, pass line wins if the point is rolled before a 7.

Don't Pass Bet

The opposite of pass line. Don't pass bets win on Craps (2 or 3) on the come-out roll and lose on Natural (7 or 11). After the point is established, don't pass wins if 7 is rolled before the point repeats.

House Edge

The mathematical advantage the casino maintains on each bet. Pass line and don't pass bets offer a house edge of approximately 1.4%, making them among the best odds in casino gaming compared to other games.

Come Bet

Similar to pass line but made after the point is already established. A come bet follows the same winning conditions as pass line, treating the next roll as a new come-out roll for that specific wager.

Don't Come Bet

The opposite of come bet. Don't come bets win on 2 or 3 after the come-out roll and lose on 7 or 11. These bets benefit from the probability of rolling a 7 to resolve the wager favorably.

Odds Bet

An additional bet made after pass, don't pass, come, or don't come bets. Odds bets are among the best bets in craps because they feature a zero house edge, paying based on true probability of outcomes.

Shooter

The player throwing the dice. In craps, anyone at the table can be the shooter. The role rotates around the table, and being the shooter involves specific etiquette rules and throwing techniques expected by casino staff.

Table Etiquette

Proper conduct at a craps table includes never touching the dice with two hands, throwing dice that hit the back wall, and respecting other players' bets. Understanding etiquette ensures a positive experience and shows respect for the game.

Dice Probability Fundamentals

Understanding Probability in Craps

Two standard six-sided dice create 36 possible outcomes. Each combination appears with equal probability over the long run. The most frequent outcome is a 7, which can be rolled in six different ways: 1-6, 2-5, 3-4, 4-3, 5-2, and 6-1. This gives 7 a probability of 6 in 36, or approximately 16.67%.

The second most common outcomes are 6 and 8, each appearing in five combinations. Numbers like 2 or 12 are relatively rare, appearing only once each. Understanding