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French Roulette and the La Partage / En Prison Rules: The 1.35% Edge You Rarely Find
French roulette's La Partage and En Prison rules cut the house edge on even-money bets from 2.70% to 1.35% — making it the lowest standard edge in the casino. Here is exactly how they work and where to find them.
On a French roulette table with La Partage, even-money bets — red/black, odd/even, high/low — carry a house edge of 1.35%. That is not a typo or a bonus promotion. It is the result of a single rule change that has been part of French casino tradition for well over a century, and it makes these bets among the lowest-edge wagers available anywhere in a standard casino environment.
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The Math: How One Rule Halves the Edge
To understand why this works, start with a standard European roulette wheel — 37 pockets, numbers 1 through 36 plus one green zero. On an even-money bet, the expected loss comes entirely from that zero pocket: 18 outcomes win, 18 lose, and 1 (zero) causes the player to lose the entire bet. The zero is what creates the 2.70% house edge.
La Partage (French: “the sharing”) intercepts that loss. When zero lands, the dealer automatically returns half of each even-money bet to the player. Instead of losing 1 unit on zero, you lose only 0.5 units. The simplified house edge calculation:
- Without La Partage: 1 loss out of 37 spins on even-money bets → edge = 1/37 ≈ 2.70%
- With La Partage: half a loss out of 37 spins → edge = 0.5/37 ≈ 1.35%
En Prison operates differently but achieves the same long-run result. When zero lands, your even-money bet is “imprisoned” — left in place for the next spin. If the next spin wins your original bet type, the stake is returned without profit. If the next spin loses, the casino keeps it. The expected value works out identically to La Partage over many trials, though En Prison adds a layer of uncertainty: you might hit zero twice in a row, leaving the stake imprisoned again (some casinos compound this; others take the bet on a second consecutive zero — check the rules).
Neither rule applies to inside bets (straight ups, splits, streets). Those retain the 2.70% European edge regardless of whether the table has La Partage.
French Roulette vs European vs American: Edge Comparison
| Variant | Zeros | Even-money edge | All other bets |
|---|---|---|---|
| French (La Partage or En Prison) | 1 | 1.35% | 2.70% |
| European (standard) | 1 | 2.70% | 2.70% |
| American (double zero) | 2 | 5.26% | 5.26% |
| American five-number bet | 2 | — | 7.89% |
The gap between French and American roulette on even-money bets is nearly fourfold. Put differently: playing red/black on an American wheel at $10 per spin costs roughly the same in expected losses as playing red/black on a French La Partage table at nearly $40 per spin. The wheel choice matters far more than bankroll management tricks.
For a broader look at how the house edge works across all casino bets, see our house edge guide.
Why French Tables Are Hard to Find
This is the genuine catch. A 1.35% edge benefits the player, which means it reduces casino revenue per spin compared to a standard European table. Many online casinos offer “French roulette” in name only — the table uses the French layout (announced bets in French, racetrack betting panel) but does not apply La Partage or En Prison.
When you find a table labeled French roulette, the verification steps are:
- Open the game’s rules or paytable before placing any bet.
- Look explicitly for the words “La Partage” or “En Prison” under the zero-handling section.
- Place a small even-money bet and note what happens when zero lands — if the full amount disappears, the rule is not active despite the French branding.
This is not a minor distinction. Without the rules, French roulette is just European roulette with a different aesthetic.
Which Crypto Casinos Offer French Roulette with La Partage?
Availability changes as casinos update their software library, so the only reliable method is to check current table offerings directly. Live dealer studios from Evolution Gaming (available at many crypto casinos) offer European Roulette with La Partage. The table is typically labeled “European Roulette Gold” or a similar premium variant in the Evolution lobby.
The casinos in our roster most likely to carry Evolution’s live tables — which include La Partage options — are listed below. Ratings reflect licensing, payout track record, and transparency; not affiliate relationships.
| Casino | Rating | Trust | Notes |
|---|---|---|---|
| Stake | 4.4 | High | Broad live dealer selection; check for Evolution tables |
| BitStarz | 4.2 | High | Hybrid fiat/crypto; typically wide software catalogue |
| Cloudbet | 4.2 | High | Established 2013; solid live table offering |
| BC.GAME | 4.0 | Medium | Good live section; verify La Partage per table |
| Bitcasino | 4.0 | Medium | Live dealer focus; worth checking |
| Shuffle | 3.7 | Medium | Newer platform; smaller live catalogue |
If a casino’s live lobby does not show an Evolution or similar premium studio, assume French rules are unavailable until confirmed. For guidance on evaluating whether a casino is trustworthy before depositing, see how to choose a safe casino.
Practical Implications: Where La Partage Actually Fits
The 1.35% edge matters in proportion to your total action — the amount bet multiplied by the number of spins. At $5 per spin on a live dealer table running roughly 35 spins per hour, you would expect to lose around $2.36 per hour on a French La Partage table, versus $4.73 on a standard European table. These are long-run averages; short sessions will deviate substantially.
This does not make roulette a “good bet” in any absolute sense. It remains a negative-expectation game — the house expects to profit from every session in the long run. What La Partage does is reduce the rate at which that happens on even-money bets. If you are going to play roulette for entertainment, choosing the table with the lowest available edge is the rational move. But the rational move is still a guaranteed statistical loss over time.
Also worth noting: even-money bets are the only place where the La Partage rule applies. If you prefer inside bets — straight ups on specific numbers, for example — you get the same 2.70% edge regardless of whether the table uses French rules. The benefit is specific and targeted.
Our American vs European roulette comparison covers the broader wheel-selection question in detail. If you are interested in how other low-edge bets in the casino compare, the house edge guide is the logical next read.
Bottom Line
French roulette with La Partage or En Prison is, mathematically speaking, the most favorable standard roulette table you can sit at — and one of the lowest-edge bets in the casino overall. The challenge is finding a table that actually applies the rule rather than just adopting the French aesthetic. Verify before you play. And regardless of the edge, treat roulette as a form of entertainment with a known cost, not a path to profit: real money is at risk on every spin. Play only if you are 18 or older and gambling is legal in your country of residence.
FAQ
- What is La Partage and how does it lower the house edge?
- La Partage is a French roulette rule that returns half your stake when the ball lands on zero and you have an even-money bet placed (red/black, odd/even, high/low). Instead of losing the full bet to zero, you lose only half. This cuts the effective house edge on those bets from 2.70% to 1.35%.
- What is the difference between La Partage and En Prison?
- Both rules apply only to even-money bets when the ball lands on zero. La Partage automatically returns half your stake immediately. En Prison leaves your entire bet locked for the next spin — if that spin wins, you get your original stake back (no profit); if it loses, the casino takes it. Mathematically, both reduce the edge to the same 1.35% over time, though En Prison introduces more variance per zero event.
- Do all online French roulette tables use La Partage?
- No. The label 'French roulette' guarantees a single-zero wheel but does not guarantee La Partage or En Prison. Some tables use the French layout and call the game French roulette without applying either rule. Always verify by checking the game's rules screen or paytable before wagering.