La Partage: the rule that halves the house edge
La Partage is a one-line rule with an outsized effect. On a single-zero wheel, when zero comes up, even-money bets lose only half their stake. That is the whole rule. What it does to the price of the game deserves the rest of the page.
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The arithmetic
On a plain European table, a £10 bet on red faces 37 outcomes. Eighteen win £10, eighteen lose £10, and one, the zero, loses £10. Average result per spin: (18 × 10 − 19 × 10) ÷ 37 = −£0.27, which is 2.70% of the stake.
With La Partage, the zero outcome loses £5 instead of £10. Average: (18 × 10 − 18 × 10 − 5) ÷ 37 = −£0.135, which is 1.35%. Half the edge, from one half-refund on one pocket.
Over a session
| Stake on red | Spins | European, 2.70% | French La Partage, 1.35% |
|---|---|---|---|
| £2 | 100 | £5.40 | £2.70 |
| £5 | 100 | £13.50 | £6.75 |
| £5 | 300 | £40.50 | £20.25 |
| £10 | 200 | £54.00 | £27.00 |
Same wheel, same bet, same payouts; the right-hand column is what the rule saves.
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Which bets it covers
The six even-money bets: red, black, odd, even, low (1–18) and high (19–36). Nothing else. A dozen, a column, a six line, a straight-up: all lose in full on zero and all carry the standard 2.70%. If you play a mixed layout, only the even-money part of it benefits.
What it looks like at the table
On an RNG table, a zero spin with £10 on red simply returns £5 to the balance and the game moves on. The help screen states the rule. On a live table with La Partage, the dealer or the interface divides the losing even-money chips and returns half. Either way there is nothing to claim; it happens automatically.
La Partage and betting systems
Every progressive system looks better on a French table for the same reason flat betting does: the bet it is built on costs half as much. A Martingale on red still breaks at the table limit in the same way, and the catastrophic sequence costs the same when it comes. What changes is the steady drain between those events. For a flat bettor there is no reason to be on any other table; for a system player there is still no reason, but it does not rescue the system.
Where it applies online
RNG French roulette tables from the major providers apply La Partage as standard; the help screen will say so, and a few providers' "French" tables do not, which is worth a check. Live tables apply it where the name says La Partage. European tables, with or without French labels, do not apply it unless the rules explicitly say so. The test is simple: find the help screen, find the word, and if it is not there, assume 2.70%.
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Quick answers
What does La Partage mean?
French for "the sharing" or "the split". On a zero, an even-money stake is shared between player and house: half comes back, half is lost.
Does La Partage apply to dozens?
No. Dozens and columns pay 2 to 1 and are not even-money bets. They lose in full on zero. The rule covers red, black, odd, even, 1–18 and 19–36 only.
Can I find La Partage on a live table?
Yes, on a small number of tables, often automated wheels with "La Partage" in the name. They are worth seeking out if you bet outside at live tables.