Split bet — payout, odds and the ride
The Split bet covers 2 numbers (two adjacent numbers) and pays 17:1. It wins 1 in 18.5 spins (5.41%) on a European wheel, where it costs the standard 2.70% of everything you wager — 5.26% on American. Placement: chip on the line between two numbers.⚙ computed
The numbers, all three wheels
| Wheel | Win probability | Hits | House edge | Std deviation / $1 |
|---|---|---|---|---|
| European | 5.41% | 1 in 18.5 | 2.70% | 4.07 |
| American | 5.26% | 1 in 19.0 | 5.26% | 4.02 |
| French | 5.41% | 1 in 18.5 | 2.70% | 4.07 |
Same edge, different ride
On a European wheel every bet costs the same 2.70% — what changes is volatility. The Split bet’s standard deviation is 4.07 per $1: a rollercoaster — long droughts, big spikes. At $10 a spin over 100 spins you should expect to pay about $27 in edge, with session swings of roughly ±$407 one standard deviation around it.
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Frequently asked
What does the split bet pay in roulette?
17:1 — a winning $10 bet returns $170 profit plus your stake, on every wheel type. What differs between wheels is how often it wins, not the payout.
What are the odds of winning a split bet?
5.41% on a European wheel (1 in 18.5 spins) and 5.26% on American, because of the extra 00 pocket.
Is split a good bet?
It costs exactly the same edge as every other bet on the same wheel — 2.70% European. Choose it for the volatility profile (SD 4.07), not the price. The only real “good bet” decision is the wheel: French even-money at 2.70% is the cheapest game in the house.