150 Roulette Strategy
The $150 roulette strategy covers 34 European pockets, but only ten produce a positive result; two dozen outcomes merely break even.
It puts $50 on each of two dozens and $5 on ten straight-ups in the remaining dozen. Its expected lossmathExpected lossExpected value times total amount wagered; the average amount lost over a session or a period.Read full → is $150/37 per European spin.
Rule as described
The $150 layoutequipmentLayoutThe printed betting grid on the table. Also: table, felt, cloth.Read full → places $50 on two dozensbetDozen1–12, 13–24 or 25–36, pays 2:1.Read full → and $5 on ten selected straight-up numbers in the remaining dozen. The exact ten numbers are a player choice, leaving two numbers in that dozen plus zerowheelZeroThe single green pocket that no even-money, dozen or column bet covers; the source of the house edge. Also: single zero, 0.Read full → uncovered.
Payout table
Coverage and a profitable result differ because each dozen win pays just enough to offset the other bets.
Worked example
Put $50 on dozens 1–12 and 13–24, then $5 each on ten numbers from 25–36. A 17 returns $150 including stake from its dozen, exactly matching the total $150 placed: net $0. A chosen 28 returns $180 against that same total, leaving +$30. Its losing components are the two $50 dozens plus nine $5 straights, or $145. An omitted 36 loses every bet.
Cost and risk
The layout covers 34/37 = 91.892% of pocketsequipmentPocketOne of the 37 numbered compartments on the rotor. Also: slot, cup.Read full →, but the chance of a positive result is only 10/37 = 27.027%. Its expectation is (24 × 0 + 10 × 30 − 3 × 150) / 37 = −$150/37, about −$4.05. Calling a break-evenmathBreak-evenThe point where a bet’s expected value is exactly zero, so neither side has an edge. Usually a payout or a jackpot size.Read full → dozen result a win would hide the actual trade-off: frequent non-losses paid for by occasional $150 losses and a continual house edgemathHouse edgeThe share of each stake the casino keeps on average: 2.70% in European roulette.Read full →.
Questions
Twenty-four covered pockets pay exactly $0 after the entire $150 layout is accounted for.
Independent roulette spins do not make a previously frequent number more likely next spin; the arithmetic is unchanged.
Sources
- RouletteDoc, “$150 strategy” — named layout
- Roulette77. Strategy description and examples.
- Wizard of Odds, Roulette Basics — dozen and straight-up payouts
- Wizard of Odds, The Truth about Betting Systems