2-7 Lowball is a game which is generally won by the player with the worst traditional poker hand. Because of this, traditionally strong hands such as a straight or a flush are poor hands in 2-7 Lowball. Rules are the same as for A-5 Lowball, apart from the exceptions detailed below:

21.1 The ace is a high card only.

21.2 The best possible hand in a game of 2-7 Lowball is 7-5-4-3-2 with two or more suits.

21.3 5-4-3-2-A is not a straight in 2-7 Lowball, but an Ace, 5 high. This means that it would beat pairs and other Ace high hands, but would be inferior to a King high.

21.4 AA is the highest pair in 2-7 Lowball, so is beaten by any other pair.

21.5 Straights and flushes count against a hand.

21.6 Check-raising is allowed after the draw.

21.7 Prior to the draw, a player who has a 7, 5, 4, 3, or 2 card which is exposed must retain it. A player with any other exposed card must have that card replaced.

21.8 It is not necessary for a player to have a seven or better in order to bet.