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10-Ball Rules Explained

Updated Oct 15, 2026 · The LeaguePool Team

10-ball is 9-ball with one more ball, a triangle rack and one big change: every shot after the break is called. You still hit the lowest-numbered ball first, but a ball only counts if it goes in the pocket you named. Slop doesn't count. Under the WPA world rules (effective September 15, 2025) you also can't win early: the 10 has to be the last ball on the table.

This guide follows those WPA rules and flags where CSI (BCAPL) leagues play it differently, since that's where most arguments start. If you already know 9-ball rules, the differences below are all you need.

10-ball rules at a glance

How to play 10-ball, step by step

1. Lag. The player whose ball stops closer to the head cushion picks who breaks the first rack.
2. Rack ten balls in a triangle: the 1 on the foot spot, the 10 in the middle of the row of three, the rest placed with no pattern.
3. Break from behind the head string. If a ball goes in and there's no foul, the breaker keeps shooting. If nothing goes in, at least four object balls must reach a rail.
4. The next shooter may play a push out.
5. From then on, call each shot. Hit the lowest ball first and make the ball you called, in the pocket you called, to stay at the table.
6. Miss and your opponent plays from where the cue ball stopped. Pocket the wrong ball (or the right ball in the wrong pocket) and your opponent decides who shoots next.
7. Foul and your opponent gets ball in hand anywhere on the table.
8. Clear the table and make the called 10 last to win. Matches are a race to a set number of racks, with the break alternating.

Racking for 10-ball

The WPA rack is simple: the 1 at the apex on the foot spot, the 10 in the middle, and the other eight balls placed "without purposeful or intentional pattern." CSI adds one fixed placement: the 2 and 3 go on the two ends of the back row, either way around. Some events follow that CSI-style rack, so check the event's rules sheet.

Templates are legal for 10-ball under WPA rules, with the apex hole on the foot spot. Our template racks guide covers sizes and how to line one up, and how to rack pool balls has the diagram and the technique for freezing a wood-rack triangle. One trap with templates: if the sheet is left lying on the rail and a ball touches it, that's a foul under WPA rule 3.15.

Break rules

The breaker starts with the cue ball in hand behind the head string. The break is never a called shot, so anything that drops on a legal break counts and the breaker stays at the table. If nothing drops, at least four object balls have to reach a rail; otherwise it's a foul and the incoming player gets ball in hand anywhere. There's no re-rack option for a weak break under either rule book.

So no, you can't win 10-ball on the break. That's one of the two rule choices that make the game harder than 9-ball (the other is calling shots).

As for how to break: a common approach with a tight rack is to hit the 1 squarely from slightly off center and play for the two second-row balls to go to the side pockets, with the back corner balls running toward the corners. Some tournaments make you break from a marked box to stop that. Technique for both is in our 9-ball break guide. WPA rules let you switch to a break cue for the break and back again.

Calling your shots

Calling is what makes 10-ball a different game. The WPA rule is short: name the ball and the pocket if they aren't obvious. You only ever call one ball. Kisses, cushions and which ball you hit first in a combination don't need calling; only the ball and the pocket matter. If your opponent isn't sure what you're shooting, they may ask.

• A straight-in shot into the obvious pocket doesn't need to be said out loud.
• Banks, kicks, combinations and caroms should be called every time. CSI makes this mandatory for any shot it defines as not obvious.
• Calling two balls or adding "just in case" doesn't work. Under CSI it ends your inning and anything that dropped counts as illegally pocketed.
• There's no safety call in 10-ball under either rule book. If you don't want to pocket anything, you just play the shot; if a ball drops anyway, the wrongly pocketed rule below applies.

What if you make your called ball and something else drops too? Under WPA rule 6.7 the extra ball stays down and you keep shooting. The one exception is the 10, which is spotted unless it was the last ball.

Wrongly pocketed balls and the shoot-or-pass option

Say you call the 4 in the corner and it goes in the side. Or you miss the 4 and the 7 drops instead. That isn't a foul. Under WPA rule 6.6 your opponent simply chooses who shoots next: they take the table as it lies, or they hand it back and make you shoot again. CSI does the same (Rule 4-8, the opponent's option).

The pocketed balls stay down, except the 10, which is spotted. That option is why slop is worthless here. If you smash into a cluster and something falls in the wrong pocket, your opponent looks at the table and gives it to whichever player it hurts more. A good habit when you're the one choosing: if the cue ball is safe, pass it back.

Fouls, ball in hand and the three-foul rule

Every standard foul gives the incoming player ball in hand anywhere on the table. The WPA 10-ball fouls are the same core list as 9-ball:

• Scratching or sending the cue ball off the table.
• Hitting anything other than the lowest-numbered ball first.
• No ball pocketed and no ball reaching a rail after contact.
• No foot on the floor, double hits and push shots.
• Touching a ball, shooting while balls are moving, and bad cue-ball placement.
• Driving an object ball off the table (only the 10 is spotted).
• Playing out of turn, slow play under a shot clock, and a ball touching a template left on the rail.

Three fouls in a row without a legal shot in between lose the rack. Under WPA rules the fouls must be in the same rack and the referee has to warn you when you come to the table on two; without the warning a third foul counts as a second. CSI's rule is the same idea: three successive fouls in one game lose the game. Full definitions, with the rulings people argue about, are in common pool fouls.

The push out

On the shot right after a legal break with no foul, the shooter may announce a push out. The lowest-ball-first and rail rules are switched off for that one shot, so you can roll the cue ball to an awkward spot. Your opponent then decides who shoots next. Every other foul still counts, so scratching on a push out is ball in hand. Under CSI, balls made on a push out stay down except the 10, which is spotted. Our 9-ball strategy guide covers where to push; it works the same way here.

Winning the rack: WPA vs CSI

This is the rule most players get wrong, because the two big rule books disagree.

So under WPA rules, 10-ball is a true run-out game: the money ball only counts when it's the last ball. If your league or room plays CSI, a called combination on the 10 ends the rack. Settle which book you're using before the first break.

If neither player can make progress, the WPA stalemate rule applies: the referee announces it, each player gets three more turns, and if nothing changes the original breaker breaks again.

10-ball vs 9-ball

The extra ball and the triangle make the break spread less predictably, and calling takes away lucky outs. Billiards Digest framed the rise of 10-ball as a response to 9-ball's soft-break and racking controversies, and that's the practical difference you feel at the table: the better player wins more racks. Strategy otherwise carries straight over from 9-ball.

Sources

• WPA Rules of Play, effective September 15, 2025 (Section 6, 10-ball; 1.7, standard call shot; Section 3, fouls)
• WPA Rule Regulations, effective September 15, 2025 (Regulation 4, ball rack templates)
• CSI (BCAPL) Official Rules, August 2025 (Section 4, 10-ball; Rule 1-16, calling ball and pocket)

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Frequently asked questions

What are the basic rules of 10-ball?

Rack balls 1 through 10 in a triangle with the 10 in the middle. Hit the lowest ball first on every shot and call every shot except the break. Make your called ball to keep shooting. A foul gives your opponent ball in hand anywhere, and legally making the called 10 as the last ball wins under WPA rules.

Can you win 10-ball on the break?

No. Under both WPA and CSI rules a 10 made on the break is spotted, and the breaker keeps shooting if there was no foul.

Do you have to call every shot in 10-ball?

Every shot except the break. Obvious shots don't need to be said out loud, but banks, kicks and combinations should always be called, and you can only call one ball per shot.

What happens if you pocket a ball you didn't call?

It isn't a foul. The ball stays down (unless it's the 10, which is spotted) and your opponent chooses whether to shoot from that position or make you shoot again.

Can you make the 10 early on a combination?

Under the WPA rules effective September 2025, no: the 10 is spotted unless it's the last object ball. Under CSI (BCAPL) rules, yes, a called 10 legally pocketed on any shot after the break wins.

Can you call safe in 10-ball?

No. WPA rules say there is no safety call in 10-ball, and CSI's safety-call rule only covers 8-ball and straight pool. If a ball drops on a shot you meant as a safety, your opponent gets the shoot-or-pass choice.

Is there a three-foul rule in 10-ball?

Yes. Three fouls in a row in the same rack lose it. Under WPA rules you must be warned when you come to the table on two fouls, or the third counts as a second.

Where does the 10-ball go in the rack?

In the middle of the triangle, which is the center of the row of three. The 1 goes at the apex on the foot spot. CSI rules also put the 2 and 3 on the two back corners.

Can you use a template rack in 10-ball?

Yes under WPA rules, with the apex hole on the foot spot. Remove it from the rail before play, because a ball touching a template left on the rail is a foul.

Is 10-ball harder than 9-ball?

Yes for most players. The triangle rack spreads less predictably, the extra ball adds traffic, and called shots take away the lucky outs that count in 9-ball.

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• How to Break in Pool: Best Way, Rules and Scratch Fixes
• Rotation Pool Rules: How 61 Is Played and Scored

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