Gambling terms, explained straight

Casino & Table Games

0 on roulette wheel payout

The payout when the ball lands on 0 in roulette. A straight-up bet on 0 pays 35 to 1, while even-money bets may lose, lose half, or be held depending on the house rules.

Straight-up payout
35 to 1
Probability on single-zero wheel
1 in 37
La partage rule
Even-money bet loses half the stake on 0

Key points

  • A straight-up bet on 0 pays 35 to 1, the same as any single number.1
  • On a single-zero wheel, the chance of hitting 0 is 1 in 37.3
  • Under la partage, an even-money bet loses half its stake when 0 hits; under en prison, the stake is frozen for the next spin.2

Where this term is used

Not the same as

Sources

  1. Roulette - Wikipedia en.wikipedia.org Provides the standard 35-to-1 payout for a straight-up bet on 0.
  2. En prison - Wikipedia en.wikipedia.org Explains la partage and en prison rules for even-money bets on zero.
  3. Roulette - FAQ wizardofodds.com Gives the probability of 0 on a single-zero wheel as 1 in 37.

Sources are drawn from regulators, universities and published research, and each one is labelled with what it actually is — a preprint is not called a paper. Bookmaker and affiliate pages are never cited here, because a page that sells betting is not a neutral authority on it.