3-Way Craps and Over/Under 7 Bets

Sam Originally published Updated

Rare one-roll bets · Reviewed August 24, 2026

Three-Way Craps splits a wager among 2, 3, and 12. Over 7 and Under 7 cover totals above or below seven. At common payouts, all are high-cost one-roll propositions.

Three-Way Craps rules

A proper $3 wager becomes $1 on 2, $1 on 3, and $1 on 12. Eleven is not part of Three-Way Craps; an older version mistakenly mentioned it in the payout description.

Three-Way Craps rules: Next roll; Winning component; Net package result on $3.
Next rollWinning componentNet package result on $3
2 or 12$1 wins 30 to 1+$28 after two $1 losses
3$1 wins 15 to 1+$13 after two $1 losses
Anything elseNone−$3

Across 36 rolls: two combinations produce +$28, two combinations of 3 produce +$13, and 32 combinations lose $3. Expected result is (56 + 26 − 96) ÷ 36 = −$0.3889 per $3 wager, a 12.96% house edge.

How larger Three-Way wagers scale

Keep the total in multiples of three so every component is equal. A $6 Three-Way Craps call means $2 each on 2, 3, and 12. If 2 or 12 rolls, the winning $2 component earns $60 while the other $4 loses, for a $56 net profit. If 3 rolls, the $2 component earns $30 and the other $4 loses, for a $26 net profit. Every other total loses the full $6.

Those larger wins do not improve the percentage: doubling every component also doubles the expected loss, from about 39 cents on $3 to about 78 cents on $6.

Three-Way versus Any Craps

Three-Way versus Any Craps: Bet; Minimum mathematical unit; Common edge; Difference.
BetMinimum mathematical unitCommon edgeDifference
Three-Way Craps$312.96%Separate 2, 3, 12 payouts
Any Craps$111.11%One 7-to-1 payout for any craps number

Under these standard prices, Any Craps has the lower edge and can use less money. Neither becomes favorable.

Over 7 and Under 7

  • Under 7 wins on 2, 3, 4, 5, or 6.
  • Over 7 wins on 8, 9, 10, 11, or 12.
  • Seven loses both bets.

Either side has 15 winning combinations and 21 losing combinations. At even money, expected result across 36 $1 bets is $15 − $21 = −$6, for a 16.67% edge.

Over 7 and Under 7: Bet; Winning totals; Winning combinations; Chance to win.
BetWinning totalsWinning combinationsChance to winCommon payout
Under 72–615 of 3641.67%1 to 1
Over 78–1215 of 3641.67%1 to 1
Seven76 of 3616.67%Both lose

The fair net price on either side would be 7 to 5 because 21 combinations lose for every 15 that win. An even-money payout returns only $5 profit on a winning $5 bet, while a 7 or any total on the other side loses the $5.

Do not confuse similarly named variants

Some approved layouts use different rules. Nevada’s published game list separately identifies Over and Under 7 and a variation called 7 & Everybody Wins, which includes 7 on both sides. Treat it as a separate game: use only the payoff and settlement language displayed for that installation. The even-money calculations on this page apply to the conventional Over 7 and Under 7 wagers where 7 loses both.

Availability and procedure

Three-Way Craps may be accepted as a center call even when not printed. A clear call is “Three-Way Craps, six dollars,” which tells the dealer to place $2 on each component. Over/Under 7 is much rarer. Ask whether the bet exists, what it pays, what happens on 7, and whether the quoted return is “to 1” or “for 1” before sending chips.

Betting both sides of seven still leaves seven uncovered

Suppose a player wagers $5 on Over 7 and $5 on Under 7 at even money. A total from 2 through 6 wins $5 on Under and loses $5 on Over, for a $0 combined result. A total from 8 through 12 does the reverse, also producing $0. When 7 rolls, both $5 wagers lose and the package drops $10.

Thirty of 36 combinations break even and six lose $10. Expected loss is therefore (30 × $0 + 6 × −$10) ÷ 36, or about −$1.67 per $10 roll. Dividing by the $10 total action gives the same 16.67% edge as either side alone.

The large number of no-loss outcomes can make the pair look protective, but there is no winning outcome under these stated rules. Repeating the package waits for the six-way 7 to collect both sides. If a layout advertises a different rule on 7, recalculate from that printed payoff rather than transferring this result to a similarly named wager.

Sam’s verdict: These bets are useful examples of why counting printed totals is not enough. The dice combinations and payout—not the size of the covered area—determine the cost.

Calculation source

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