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Casino Terms Glossary
Odd — is an even‑money outside bet in roulette that covers all odd numbers (1, 3, 5 … 35), excluding zero pockets. It pays 1:1 when an odd number hits and loses on even numbers and on 0/00. Players use it to cover roughly half the wheel and smooth variance in casino play.

Understanding Odd
In gambling, Odd meaning refers to the roulette wager on all odd outcomes; the official Odd definition is an even‑money bet that wins on odd numbers and loses on even and green zeros. The house edge exists because of zero: 2.70% on European, 5.26% on American wheels. Understanding this casino term helps a player plan bankroll, session length, and risk. At 101RTP, you’ll find trusted casino reviews and our Slot Simulator and Bonus Value Score calculator to model bankroll swings and compare bonus wagering value.
Examples of Odd
Here are common examples showing how the Odd bet behaves:
- European roulette: you wager $10 on Odd. If 17 hits, you get $10 profit plus your $10 stake back. If 8 hits, you lose $10. If 0 hits, you also lose $10.
- American roulette (0 and 00): the extra 00 reduces the hit rate for Odd, increasing the house edge to 5.26%.
- Streaks: several odd results in a row do not change the next spin’s probability; each spin is independent.
- Bankroll management: flat‑betting Odd limits swings compared to chasing losses with Martingale, which can escalate risk quickly.
FAQs
What is Odd in a casino roulette game?
Odd is an even‑money outside bet that wins on any odd number (1–35) and loses on even numbers and on 0/00. The Odd definition in roulette is simple: cover half the numbers (minus the green pockets) for a 1:1 payout. It’s popular with players seeking steadier gambling sessions.
How does the Odd bet pay and what is the house edge?
Odd pays even money (1:1) when an odd number lands. It loses on even numbers and on the green zero pockets. Because zero isn’t odd or even, the casino edge remains: about 2.70% on European roulette (single zero) and 5.26% on American roulette (zero and double zero).
Can betting Odd improve my long‑term returns?
No. Choosing Odd, Even, Red, or Black does not change the house edge. These even‑money bets can smooth volatility for a player compared to single numbers, but they cannot overcome the casino advantage created by the zero pockets. Sensible bankroll limits and session goals remain essential.
Is Odd the same as odds in gambling?
No. Odd is a roulette bet on odd numbers; odds is a probability expression (like 5:1) used across gambling. If you’re searching for Odd meaning or an Odd definition, you’re looking for the roulette term. If you’re asking about odds, you mean price or probability, not this bet.
Do different roulette wheels change returns on Odd?
Yes. European wheels (single zero) offer a lower house edge than American wheels with 0 and 00. The payout is still 1:1, but the extra green pocket reduces the hit rate. To compare casinos and game types, use independent reviews and tools available on 101RTP before you play.
Why does Odd lose when zero appears?
Zero (and double zero) are neither odd nor even, so Odd loses on those results. Those green pockets are how the casino maintains its mathematical edge on even‑money bets. Over time, the occasional zero offsets the frequent even‑money wins a player sees on odd numbers.
How can I plan a bankroll around the Odd bet?
Estimate average spin pace and variance, then set a fixed stake and hard loss limit. Even‑money bets like Odd offer frequent but small wins, so avoid chasing losses with progressions. For planning help, 101RTP provides reviews and tools like the Slot Simulator and the Bonus Value Score calculator.