Start with the odds
Roulette is a game of chance with a built-in house edge. No bet, grouping or system changes the odds in the player’s favor over time, and most players lose money in the long run. Nobody should gamble money they cannot afford to lose. Neighbor and called bets are a convenience of placing chips, not a different game.
Why wheel order matters
On the betting grid, numbers sit in rows of three. On the wheel they follow a different order, so pockets that are next to each other on the wheel are scattered across the felt. A player who wants to cover a stretch of the wheel would otherwise have to place many separate chips in many places.
Bets based on wheel position solve that problem. They are most associated with single-zero (French-style) tables, which often show a racetrack: an oval strip of numbers printed in wheel order. This is one of the few places where the roulette layout on the table and the order on the wheel are both used.
Neighbor bets
A neighbor bet is a bet on one number plus the numbers beside it on the wheel. A common version is “a number and two neighbors either side,” which covers five adjacent pockets. Using the wheel sequence 0, 32, 15, 19, 4, 21, 2, 25, 17, 34, 6 and so on, the number 4 with two neighbors each side would cover 15, 19, 4, 21 and 2.
The bet is placed with a single call or by placing chips on the racetrack, and the dealer puts the chips on the grid. What is actually placed is one straight-up bet on each of the five numbers, which is 5 chips. Each pays 35 to 1 if it hits, and the other four lose. So a neighbor bet is five straight bets with a shared name.
Called bets in French roulette
Some groupings are so familiar that they have names. Each is a fixed pattern of chips over a section of the wheel.
- Voisins du zéro (“neighbors of zero”) covers 17 numbers: 22, 18, 29, 7, 28, 12, 35, 3, 26, 0, 32, 15, 19, 4, 21, 2 and 25. It takes 9 chips: two on the trio 0-2-3, one each on the splits 4/7, 12/15, 18/21, 19/22 and 32/35, and two on the corner 25/26/28/29.
- Tiers du cylindre (“a third of the wheel”) covers 12 numbers: 27, 13, 36, 11, 30, 8, 23, 10, 5, 24, 16 and 33. It takes 6 chips, one on each of the splits 5/8, 10/11, 13/16, 23/24, 27/30 and 33/36.
- Orphelins (“orphans”) covers the 8 numbers left over: 1, 20, 14, 31, 9, 17, 34 and 6. It takes 5 chips: a straight bet on 1 and splits on 6/9, 14/17, 17/20 and 31/34.
- Jeu zéro (the zero game) covers 7 numbers: 12, 35, 3, 26, 0, 32 and 15. It takes 4 chips: splits on 0/3, 12/15 and 32/35, and a straight bet on 26.
Check the counts: 17 + 12 + 8 = 37, so the first three together cover the whole wheel exactly once. That is why they are described as parts of the wheel.
Terms and chip counts can differ between venues, and the details above describe the usual French conventions, not a rule everywhere.
They are ordinary bets in disguise
Every chip in these bundles is a straight, split, trio or corner bet. Their payouts are the usual ones: 35 to 1 for a straight bet, 17 to 1 for a split, 11 to 1 for a trio and 8 to 1 for a corner, the same pricing used for inside bets.
Since every chip has the same expected loss per unit staked (1/37 on a single-zero wheel), the bundle has the same expected loss per unit staked too. Putting 9 chips on voisins du zéro costs, on average, 9/37 of a chip per spin. That is not a figure for the group as such; it is 9 times 1/37.
A worked hypothetical: if each chip is worth $1, a voisins bet stakes $9. The chips on the cluster of 17 numbers win something on 17 of 37 outcomes, but the amount won differs: a hit on the corner 25/26/28/29 pays 8 to 1 on two chips (a profit of $16 on those chips), minus the other 7 chips lost, so a net of +$9 on that result. A hit on a single split pays 17 to 1 on one chip, minus the 8 other chips lost, so a net of +$9 too. The trio pays 11 to 1 on two chips ($22) minus 7 lost, a net of +$15. That gives:
- Trio numbers (3 of them): +$15 each.
- Split numbers (10 of them): +$9 each.
- Corner numbers (4 of them): +$9 each.
- Everything else (20 of 37 outcomes): −$9.
Expected result: (3 × 15 + 14 × 9 − 20 × 9) / 37 = (45 + 126 − 180) / 37 = −9/37, about −$0.24. This matches nine chips times 1/37, as it should.
What they change and what they do not
Bundling changes how many pockets are covered at once and how the wins are spread across them. A larger number of covered pockets means wins come more often but pay less relative to the amount staked. Fewer pockets means the opposite. Neither changes the long-run cost.
They do not make any part of the wheel “hot” or “due.” The ball’s landing spot is independent of earlier spins, and the idea that a section of the wheel is due is the same error discussed under gamblers fallacy. Likewise, a belief that neighbors of a recent number are more likely is not supported by how a properly built wheel works. The only version of this idea that would matter is a physical imperfection in the wheel, which is the question of wheel bias.
Practical notes
- Called bets are announced to the dealer, who places the chips, so the player does not need to know the pattern. Understanding it still helps you see what you are paying for.
- A bundle uses several chips, so the total stake per spin is larger than a single chip. That raises the amount wagered per round, and with it the expected loss per round.
- The same grouped bets on a double-zero wheel are not standard, as the wheel order differs and the zeros alter the grouping.