Calculate a five-number wager from its own payout

A broader group of winning numbers can still have a worse expected return if the payout is reduced.

The distinction that matters

Assume 38 equally likely pockets and a bet covering five outcomes that pays six units of profit on a win. There are five winning and 33 losing outcomes. Expected net result is (5 × 6 − 33) / 38 = −3/38, approximately −7.8947% of the stake.

A worked example

For hypothetical C$380 turnover under these rules, expected cost is C$30. Borrowing the −2/38 expectation from a 35-to-1 single-number bet would be wrong because the payout and coverage differ. The correct calculation starts again from the stated outcomes.

Your next steps

  • Count the covered outcomes exactly.
  • Read the profit payout for that particular bet.
  • Include uncovered outcomes as losses.
  • Compare net expectation rather than the apparent size of the covered area.

Where this answer stops

This is a derivation for a specified model, not a catalogue of available bets. A bet with more winning outcomes does not automatically have a lower expected cost or a better chance of session profit.

Sources & reading

Primary references support the factual context below. Explanations, worked examples and calculations are original Northline analysis. Read how we handle evidence.

  1. OLG PlaySmart — roulette rules brochure

    Primary educational description of 38 pockets and the five-number top-line bet. Used for the stated rules context, not a claim that an online operator offers it. Accessed .

  2. BCLC — double-zero roulette payout schedule

    Primary British Columbia rules document: section 1.0, payout schedule. Cited only as a documented mathematical rules example, not as Ontario law, operator terms or evidence of availability in Ontario. Accessed .

An editorial review date is not a new policy effective date. Always check the current source for operator-specific conditions.

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