Craps Probability – Don’t Pass

Another type of bet in craps is a ‘don’t pass bet’. Here, the winning opportunities are the opposite of what we have seen before. Well, not really; had that been the case, the player would have got an exactly opposite, +1.41% advantage, which is absurd. A player never holds winning odds in gambling! The rules are almost the opposite, but getting 12 in the first throw makes a pass (no win. no loss). Let’s list down all the possible outcomes and the payoff table.

  1. The player throws the dice and wins at once if the total for the first throw is 2 or 3.
  2. The player loses if the outcome is 7 or 11.
  3. It’s a pass if the outcome is 12.
  4. The throws 4, 5, 6, 8, 9 or 10 are called points.
  5. If the first throw is a point, it is repeated until the same number (the point) comes back (player loses) or 7 (player wins).

The probability of winning a point 4 is the joint probability of winning 4 in the first roll and the probability of getting 7 (and not 4) in the second.

Dice
Roll
PayoffProbabilityReturn
7 or 11
(come-out loss)
-116.67 + 5.56
= 22.23
-22.23
2, 3
(come-out win)
12.78 + 5.56
= 8.34
8.34
12
(come-out push)
02.780
Point 4 loss-18.33*8.33/(8.33+16.67)
= 2.78
-2.78
Point 5 loss-111.11*11.11/(11.11+16.67)
= 4.44
-4.44
Point 6 loss-113.89*13.89/(13.89+16.67)
= 6.31
-6.31
Point 8 loss-113.89*13.89/(13.89+16.67)
= 6.31
-6.31
Point 9 loss-111.11*11.11/(11.11+16.67)
= 4.44
-4.44
Point 10 loss-18.33*8.33/(8.33+16.67)
= 2.78
-2.78
Point 4 win18.33*16.67/(8.33+16.67)
= 5.55
5.55
Point 5 win111.11*16.67/(11.11+16.67)
= 6.67
6.67
Point 6 win113.89*16.67/(13.89+16.67)
= 7.58
7.58
Point 8 win113.89*16.67/(13.89+16.67)
= 7.58
7.58
Point 9 win111.11*16.67/(11.11+16.67)
= 6.67
6.67
Point 10 win18.33*16.67/(8.33+16.67)
= 5.55
5.55
Overall100-1.35

So, as usual, the house wins.