This
bet is made prior to a comeout roll, and to make
this wager, the player must put chips in the area
designated as pass line. In order to win this bet,
one of the following must occur:
 On the comeout roll a 7 or 11 is rolled. This
is an immediate winner on the pass line, and the bets
are paid off at even money.
 If a 4, 5, 6, 8, 9, or 10 is thrown on the comeout
roll, then that number is designated as the point,
and it must be repeated before a 7 is thrown for the
pass line bettor to win.
For instance, if the number rolled on the comeout
is a 5, that is the point. If, after rolling the 5,
the shooter rolled 2, 3, 6, 10, 12, 8, 11, and then
5, the passline bettors would win their bets. This
is so because the 5 was repeated before a 7 was thrown.
All numbers other than the point number 5 and 7 were
immaterial and didn't affect the passline bettor's
decision.
Passline
bettors lose their wagers if the following occurs:
 On the comeout roll, a 2, 3, or 12 (all called
"craps") is rolled. The shooter is said
to crap out, and this roll is an immediate loser for
the passline bettors.
 If a point number (4, 5, 6, 8, 9, or 10) has been
established on the comeout roll, and a 7 is rolled
before the point was repeated.
A losing sequence of numbers might look like this:
6 (the point), 8, 9, 4, 11, 3, 7. Since the 7 came
up before the 6 was repeated, it's a losing roll for
passline players. All the other numbers would have
no bearing in determining a win or loss on this passline
bet.
A passline bettor is called a right bettor. This
term has nothing to do with morality, but is the expression
used for a player wagering with the dice. Most players,
approximately 90 percent of the gamblers at a craps
table, are right bettors, for reasons we'll go into
later.
To summarize the passline bet:
 On the comeout roll, a 7 or 11 is an immediate
winner.
 A 2, 3, or 12 is an immediate loser on the comeout
roll.
 If a point number is rolled on the comeout, that
number (4, 5, 6, 8, 9, or 10) must be repeated before
a 7 is rolled for the passline player to win. If
a 7 comes up before the point is repeated, the passline
bettor loses.
A passline bet, once made, cannot be removed or reduced. 
On
the low side, though, it's fairly common, especially
in highlow games where players see many cards, to
get ties on low hands. Someone who owns a wheel can
face a difficult decision. He can't be beaten low,
but he certainly can be tied for low, and if he swings
(declares both ways) when someone else also has a
wheel, all kinds of unusual situations can arise.
Suppose that the rule is if you go both ways, you
must win both ways; a tie is considered a loss. With
two players in at the end, each with a wheel, if one
swings and the other doesn't, the non swinger gets
the whole pot (if they both swing, they split). If
the rule is that you can tie, the swinger would get
three quarters if his opponent declares lowonly or
highonly, or half if his opponent swings.
