Every 9-ball argument at a club table is about the same three things: a scratch, a foul, or the push out.
The potting rules everyone knows. The penalty rules are where games are won, lost, and argued about. Here they are, settled, under standard rules.
Ball in hand: the punishment that decides everything
First, understand the penalty, because every foul below leads to it.
When you foul in 9-ball, your opponent gets ball in hand anywhere on the table. Not behind the line, not from where it lies. Anywhere. They pick the cue ball up and place it wherever gives them the best shot.
Against a decent player, ball in hand usually means losing the rack. They place it for a perfect angle on the lowest ball with position on the next, and run out. That's why 9-ball punishes carelessness more than any other pool game, and why safety play is half the sport.
What counts as a foul
The three fouls behind nearly every 9-ball dispute are scratching, hitting the wrong ball first, and no rail after contact.
Scratching. Cue ball in a pocket, or off the table. Ball in hand.
Wrong ball first. The cue ball must contact the lowest-numbered ball on the table before anything else. Clip a higher ball first, even on the way to a legal combination, and it's a foul. Ball in hand.
No rail after contact. After the cue ball hits the lowest ball, at least one ball, any ball, must reach a cushion or be pocketed. A soft roll-up that freezes everything with no cushion contact is a foul. This is the one most casual players don't know, and it exists so you can't just nudge balls around forever.
Touching balls, double hits, feet off the floor and the rest of the standard pool fouls apply too, but the three above cover nearly every real dispute.
Scratching when the 9 goes in
If you scratch while potting the 9, you don't lose: it's a foul, the 9 is spotted and your opponent gets ball in hand.
The one that ends friendships. You pot the 9-ball, game-winning shot, and the cue ball follows it into a pocket.
You do not lose the game. Under standard rules: the 9 is spotted back on the foot spot, your opponent takes ball in hand, and the rack continues. You've turned a won game into a probably-lost one, but it's a foul like any other, not a loss of game.
Same applies any time the 9 is pocketed on a foul stroke: it comes back up, opponent gets ball in hand.
The three-foul rule
Foul three times in a row, three consecutive innings without a legal shot in between, and you lose the rack outright. One condition: you must be warned once you're on two fouls, by the referee or, under CSI rules, by your opponent. No warning, no loss on the third.
This rule exists to stop a player who's snookered from just fouling forever. Under WPA rules and CSI rules (used by BCA leagues) it's standard. APA leagues don't use it. In casual play, agree before you start whether you're using it, and save the argument.
The push out
Straight after the break, and only then, the shooter can call a push out. They then shoot the cue ball anywhere: no lowest-ball requirement, no rail requirement. It is not a foul.
The catch that balances it: the opponent chooses whether to accept the new position and shoot, or pass it straight back to the pusher.
The push out exists because breaks often leave the incoming player hooked with no legal shot. Rather than forcing a foul-lottery, the rule creates a chess move: push to a position that's awkward for your opponent but playable for you. If they can't punish it, they hand it back and you're the one with the manageable shot.
Knowing the push out, and using it well, is the clearest tell of a player who's actually learned 9-ball rather than absorbed it at the bar.
The pattern behind all of it
Notice what every one of these rules rewards: cue ball control. Not scratching is cue ball control. Reaching a rail is cue ball control. Making the most of ball in hand is position play. The rules are a scoring system for whoever controls the white ball better, which is why the players who win at 9-ball are rarely the flashiest potters. They're the ones whose cue ball never surprises them, and that's a trainable skill, not a gift.
Common questions
What happens if you scratch on the 9 ball?
The 9 is spotted back on the foot spot and your opponent gets ball in hand anywhere on the table. WPA rules, CSI rules (used by BCA leagues) and APA rules all handle it this way.
If you scratch on the 9 ball, do you lose?
No. In 9-ball, scratching while you pocket the 9 is an ordinary foul, not loss of game. The rule people half-remember comes from 8-ball: in APA 8-ball, for example, scratching on the 8 does lose the game.
What happens if you scratch on the break in 9-ball?
Under WPA and CSI rules it's a foul, so your opponent gets ball in hand anywhere on the table, and any balls you made stay down except the 9, which is spotted. In the APA the same applies after a legal break, but if the break was illegal and you scratched, the balls are re-racked and your opponent breaks.
What is the one scratch rule?
There is no one scratch rule in the WPA, CSI or APA 9-ball rules. A single scratch is a standard foul: ball in hand to your opponent, and the rack goes on. The rule that ends a rack for fouling is the three-foul rule, which WPA and CSI rules use and the APA does not.
Ball in hand vs scratch: what's the difference?
A scratch is the foul: the cue ball going into a pocket. Ball in hand is the penalty: your opponent places the cue ball anywhere on the table. In 9-ball every foul gives ball in hand, not just a scratch.
Is it a foul if you don't hit the lowest ball first?
Yes. On every shot the cue ball must hit the lowest-numbered ball on the table first, or it's a foul and your opponent gets ball in hand. The exceptions are a declared push out under WPA and CSI rules, and the break in APA play, where missing the 1 first is not a foul.
More on 9-ball
- The 9-ball push out rule: when you can push and how to answer one
- The three-foul rule in 9-ball: how fouls are counted and who uses the rule
- 9-ball break rules: fouls, scratches and the 9 on the break
- How to play 9-ball: the full game, start to finish
Knowing the rules wins arguments. Knowing your own game wins racks. Find out what's costing you racks.
Sources
- WPA Rules of Play, effective 15 September 2025: rules 2.17, 3.1, 3.2, 3.3, 3.13, 5.3, 5.4, 5.6 and 5.7.
- Official Rules of CueSports International, used by the BCAPL, effective 1 June 2023: rules 1-22, 3-3, 3-4, 3-5 and 3-6.
- APA Official Team Manual, Game Rules: Breaking, After the Break, Balls on the Floor, Fouls, How to Win a Game.
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