La Partage Rule

La partage is a French roulette rule that returns half of any even-money bet (red/black, odd/even, high/low) when the ball lands on zero. Unlike the en prison rule, where your bet is held for the next spin, la partage immediately gives you half your money back. The effect on the house edge is identical: it drops from 2.70% to 1.35%.

The mechanics are simple. You bet $20 on red. The ball lands on zero. With la partage, you receive $10 back immediately. Without the rule, you would lose the full $20. Over thousands of spins, this protection on zero results halves the expected loss on even-money wagers.

La partage and en prison produce the same mathematical house edge (1.35%) but differ in how they handle the zero outcome. La partage is simpler because you receive half your bet back immediately. En prison is slightly more favorable in terms of variance because you have a chance to recover your full bet on the next spin, but the expected value is identical.

At 1.35% house edge, even-money bets on French roulette with la partage offer better odds than almost any other casino game except blackjack with perfect basic strategy and craps with full odds. This makes French roulette a surprisingly good option for informed players who seek the best possible mathematical value.