Red bet — payout, odds and the ride
The numbers, all three wheels
| Wheel | Win probability | Hits | House edge | Std deviation / $1 |
|---|---|---|---|---|
| European | 48.65% | 1 in 2.1 | 2.70% | 1.00 |
| American | 47.37% | 1 in 2.1 | 5.26% | 1.00 |
| French (la partage) | 48.65% | 1 in 2.1 | 1.35% | 0.99 |
Same edge, different ride
On a European wheel every bet costs the same 2.70% — what changes is volatility. The Red bet’s standard deviation is 1.00 per $1: the smoothest ride on the felt — small swings, near-coin-flip rhythm. At $10 a spin over 100 spins you should expect to pay about $27 in edge, with session swings of roughly ±$100 one standard deviation around it.
The eighteen reds
Red covers 1, 3, 5, 7, 9, 12, 14, 16, 18, 19, 21, 23, 25, 27, 30, 32, 34, 36 — note the break in parity around 10/28: color follows tradition, not arithmetic. On the felt the reds form the familiar diagonal lattice; on the rim they strictly alternate with black by design. Streak-minded? A same-color run of 5+ visits 77% of 100-spin sessions — the exact ladder.
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