What are the basic rules of American pool?

American pool covers several games (most common: 8-ball and 9-ball). In 8-ball, players split into solids (1-7) and stripes (9-15), pot all balls in their group, then pot the 8 to win. In 9-ball, players must hit the lowest-numbered ball first each shot, and whoever pots the 9 (legally) wins the rack. Both games use the same table, balls, and basic shot mechanics — only the objective differs.

What size is an American pool table?

Tournament American pool tables are 9 ft × 4.5 ft (2.74 m × 1.37 m). Bar-box / coin-operated tables are smaller at 7 ft × 3.5 ft. Home recreational tables are usually 8 ft. Balls are 2¼ inches (57.2 mm) diameter regardless of table size.

How do you break in American pool?

Place the cue ball anywhere behind the head string (the imaginary line through the head spot). For 8-ball, rack 15 balls in a triangle with the 8 in the centre. For 9-ball, rack only balls 1-9 in a diamond with the 1 at the front and 9 in the middle. Strike the cue ball firmly; the rules require either a ball to be pocketed or at least 4 balls to reach a cushion (in WPA rules).

Can the 8-ball be sunk on the break in American pool?

It depends on the rule set. In WPA / BCA rules, potting the 8 on the break is legal (you can choose to re-rack or keep it sunk and continue). In APA rules, sinking the 8 on the break is a win. In bar / house rules, it's often a loss. Always confirm the local rule before the first frame.

What's the difference between 8-ball and 9-ball?

8-ball uses 15 object balls split into two groups (solids and stripes), with players claiming a group after the break. 9-ball uses only 9 numbered balls and requires hitting the lowest-numbered ball first on every shot. 8-ball rewards strategic group management; 9-ball rewards run-out potting and tactical safety play. 9-ball is the dominant pro format; 8-ball is the dominant amateur and league format.

What is a scratch in pool?

A scratch is when the cue ball goes into a pocket. It's a foul — the opponent gets ball-in-hand (places the cue ball anywhere on the table) on their next shot. Common in beginners due to too much power or wrong cue-ball position planning.

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Pool Basics · 10 min read

How to Play American Pool: Complete Beginner's Guide

Updated May 26, 2026 · Zero to first competitive game · Covers 8-ball + 9-ball

You've walked into a bar or pool hall, you see the green table with the coloured balls, and you want to know how to play. This is the guide. By the end you'll understand the equipment, how to set up, the rules of the two main games (8-ball and 9-ball), the most common variations you'll encounter, and the five mistakes every beginner makes so you can skip them.

If you've played English pool (the UK pub game) before, see English Pool vs American Pool for the differences. If you're brand new to the game entirely, start here.

The Equipment

Part 1

The Table

American pool tables come in three sizes:

9-foot (tournament): 9 ft × 4.5 ft. The "real" size used in professional play.
8-foot (home): 8 ft × 4 ft. Most common in homes and casual pool halls.
7-foot (bar / coin-op): 7 ft × 3.5 ft. The standard bar-box size. Shots are tighter and easier than on bigger tables.

The table has 6 pockets (4 corners + 2 sides), a green felt (cloth) surface, and rubber cushions around the playing area. The head string is an imaginary line across the table where you place the cue ball to break.

Part 2

The Balls

American pool uses 16 balls total — all 2¼ inches (57.2 mm) in diameter:

1 white cue ball: the one you strike with the cue.
7 solid-colour balls (numbered 1-7): yellow, blue, red, purple, orange, green, brown.
7 striped balls (9-15): same colours but with a white stripe through the middle.
1 black 8-ball: the most important ball in the most popular game.

In 9-ball, only balls 1 through 9 are used (the 9 is the winning ball). In 8-ball, all 16 are used.

Part 3

The Cue

A pool cue is typically 58 inches long and weighs 18-21 oz. The tip (small leather pad at the end) is the only part that touches the cue ball. Tips are typically 12-13 mm diameter. House cues at bars are usually low-quality but functional; serious players buy their own (£/$80-300 entry-level).

Before any spin shot (especially low / draw shots), chalk the tip — the small cube of blue chalk on the table. Without chalk, the tip slides off the cue ball and you miscue.

Setting Up: The Rack

The "rack" is the triangle (8-ball) or diamond (9-ball) shaped frame used to position the balls at the start of each rack. Place the rack at the foot of the table with the front ball on the foot spot (a small marker on the table).

8-Ball Rack

15 balls in a triangle:

The 1-ball at the front apex (closest to the cue ball).
The 8-ball in the centre of the triangle (third row, middle position).
The back two corners: one solid and one stripe.
The other 12 balls fill the remaining spaces — they should alternate solids/stripes roughly evenly but not in any rigid pattern.

9-Ball Rack

9 balls in a diamond shape (the smaller, dedicated 9-ball rack):

The 1-ball at the front.
The 9-ball in the centre.
Balls 2-8 fill the remaining spaces in any order.

The Break

The "break" is the opening shot that scatters the rack. The breaker:

Places the cue ball anywhere behind the head string.
Strikes the cue ball with a powerful, controlled shot aimed at the front ball of the rack.
Watches the result — if a ball is pocketed, the breaker continues their turn. If no ball is pocketed but at least 4 balls reach a cushion, it's a legal break and play passes to the opponent.

Three things make a good break:

Cue ball position: slightly off-centre (close to a side rail) often produces a better spread than dead-centre.
Power: 75-85% of your maximum — not all-out. Too much power makes the cue ball fly out of control.
Aim: square hit on the front ball of the rack to maximise energy transfer to the cluster.

The Rules of 8-Ball

8-ball is the most-played American pool game globally. Rules summary:

Choose groups after the break. The first player to legally pocket a ball after the break "claims" that group — solids or stripes. Some rules require explicit declaration ("I'm playing solids"); others assign by first-potted.
Pot all 7 of your group, then pot the 8-ball to win. You must pot balls only from your group; pocketing an opponent's ball is a foul.
Call your pocket on the 8-ball. You must declare which pocket the 8 will go into. Putting it in the wrong pocket loses the game.
Fouls give opponent ball-in-hand. They place the cue ball anywhere on the table for their next shot.

Common 8-ball Fouls

Scratch: cue ball pocketed.
Wrong-ball-first contact: cue ball hits opponent's ball before yours.
No cushion contact: after impact, no ball touches a cushion (and nothing pocketed).
Cue ball off table: drives off the playing surface.
8-ball pocketed early: pocketing the 8 before clearing your group loses the game.

The Rules of 9-Ball

9-ball is the dominant professional format. Rules summary:

Always hit the lowest-numbered ball first. On every shot, the cue ball must contact the lowest-numbered ball still on the table (1 first, then 2, then 3, etc.).
Balls can be pocketed in any order after the first contact. Hit the 1 first, then if the 9 falls in too, you win.
The 9-ball wins. Whoever pockets the 9-ball legally — even on the first stroke — wins the rack.
Failure to hit the lowest ball first is a foul → opponent gets ball-in-hand.

The Push-Out (9-ball special rule)

After the break, the incoming player can choose to "push out" — make any shot they want without needing to hit any ball or any cushion. The opponent then accepts the new position or returns the shot to you. See The 9-Ball Push-Out Rule for full strategic explanation.

Learn the geometry before the game

Once you know the rules, the next layer is aiming and cue-ball control. AimGeometry's free interactive trainer covers ghost-ball aiming, the 30° rule, position play, and more — all in browser, no signup. Pair with this guide for a fast learning curve.

Open the aim-methods lesson →

Common Variations You'll Encounter

Rule Set	Used Where	Key Differences
WPA (World Pool Association)	International tournaments	The "official" rules. Closest to what pros play.
BCA (Billiard Congress of America)	US tournaments	Very similar to WPA. Standard for serious US players.
APA (American Poolplayers Association)	US league play	More forgiving — different rules for ball-in-hand, push-out, fouls. Optimised for handicap-based amateur play.
House rules / Bar rules	Casual bars	Highly variable. Always ask before the first frame: "What are your house rules?"

If you're walking into a strange bar, ask three specific questions:

"Do you call your pocket on the 8-ball?"
"Is sinking the 8 on the break a win, loss, or re-rack?"
"Is it ball-in-hand on a scratch, or just where it lays?"

Those three answers cover 90% of the variations you'll encounter.

The 5 Mistakes Every Beginner Makes

1. Hitting Too Hard

Beginners think pool is about power. It isn't. Most pots use medium-soft pace; hard shots make the cue ball uncontrollable and the object ball less likely to drop. Soft beats hard for accuracy.

2. Not Chalking the Tip

Without chalk, the cue tip slides off the cue ball on any off-centre strike, producing a miscue. Chalk before every shot, especially shots with spin (low, high, or side).

3. Standing Up Mid-Shot

Beginners lift their head during the stroke to "see" the result. This breaks your aim. Stay down on the shot until the cue ball stops moving, then stand up.

4. Aiming at the Object Ball Centre

On any cut shot (object ball not on a straight line to the pocket), aiming at the object ball's centre will hit it too thick and miss the pot. Use the ghost-ball method — aim where an imaginary cue ball would need to touch the object ball, not at the object ball itself.

5. Ignoring the Cue Ball's Next Position

Pool isn't about potting balls — it's about continuing to pot them. Every shot should plan where the cue ball will end up for the next pot. Beginners pot one ball spectacularly and then realise the cue ball is in a position with no follow-up. Learn the 30° rule early.

Your First 10 Games (Practical Suggestions)

Game 1-2: Just learn the rules. Don't worry about winning. Have someone walk you through what's legal/illegal.
Game 3-5: Focus on cue ball control. Pot what you can, but observe where the cue ball lands.
Game 6-8: Start planning two shots ahead. Where does the cue ball need to be for my next ball?
Game 9-10: Try a safety. When you don't have a clear pot, deliberately leave the cue ball where the opponent can't pot easily.

After 10 games you'll have a base understanding. After 50 games you'll be a competent recreational player. After 500 hours of practice you might enter your first tournament.

One-Sentence Summary

American pool = potting all your group balls then the 8 (8-ball), or hitting the lowest ball first and aiming to drop the 9 (9-ball) — on a green 9-foot table with 16 balls, with chalk on your cue and a soft touch when in doubt.