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Originally posted by: doubledown78
Single zero roulette -- I would place $2,000 bets on 5 six-number bets, leaving 0, 1, 2, 3, 34, 35, and 36 uncovered.
81.1% chance I leave with $12,000; 18.9% chance I lose it all.
That's outside the parameters of the question, which specifies "one bet". Otherwise I would just put $5K on Banker and $5k on Player and be guaranteed a win of at least $4750.