How to Play the In-Off in English Pool
What Is the In-Off in English Pool?
The in-off is one of the most misunderstood shots in English pool. Ask ten pub players when it’s legal and you’ll likely get ten different answers. The shot itself is straightforward: you pot the cue ball by cannoning it off another ball into a pocket. But whether that earns you points, hands your opponent a free shot, or simply ends your visit to the table depends entirely on the context, and on which set of rules you’re playing under.
English pool is played under several rule sets, most notably the EPA (English Pool Association) rules and the various pub league variants that have evolved across the country. The core principles around in-offs are consistent enough to address together, but where differences exist, they matter. This article covers the shot in full: what it is, when it’s a scoring shot, when it’s a foul, how to play it deliberately, and the common mistakes that give opponents free tables.
The Basic Definition and How It Differs from a Pot
A standard pot in English pool means you strike the cue ball, it contacts one of your object balls, and that object ball drops into a pocket. An in-off is different: the cue ball itself goes into the pocket, either directly or after contacting one or more object balls. In some rule sets this is also called potting the white or losing hazard, older terminology borrowed from billiards that you might still hear from experienced players.
The distinction matters because the cue ball entering a pocket is not automatically a foul in English pool. Unlike in snooker, where potting the cue ball is always a foul, English pool has specific circumstances where the in-off is a legal and even strategically valuable shot. Understanding those circumstances is what separates players who treat every in-off as a disaster from those who use the shot as a weapon.
When the In-Off Is Legal
Potting the Black on the Final Shot
The most commonly known legal in-off in English pool occurs when you pot the black (the 8-ball) to win the frame. Under standard EPA rules, if you pot the black legally and the cue ball also enters a pocket on the same shot, you still win, the in-off does not turn your winning pot into a foul. This only applies if the black was potted correctly: in the right pocket if a nominated pocket is required by the rules being used, and only after you’ve already cleared all your own balls.
This is the shot that catches most players off guard. You’ve potted the black, you’re celebrating, and your opponent points at the cue ball sitting in a pocket. Under pub rules in many areas, this would be called a foul. Under EPA rules, it’s a win. Always clarify the rule set before you play, particularly in pub league environments where house rules frequently override the official framework.
Deliberate In-Offs as Part of Combination Play
In some older and more relaxed rule sets, an in-off that simultaneously pots one of your own object balls is treated as a legal shot, you pot the ball, the white follows it in, and both are retrieved. This is rarely seen in formal competition and is more of a pub rule curiosity, but it’s worth knowing exists. In serious play under EPA or WPA framework rules, this would be a foul regardless of whether your ball was also potted.
When the In-Off Is a Foul
Potting the White Without Potting the Black
In the vast majority of situations during a frame, if the cue ball enters a pocket it’s a foul. Whether you’ve hit your own ball first, your opponent’s ball, or missed everything entirely, if the white goes in during normal play, you’ve committed a standard foul. Your opponent gets ball in hand, or in many pub rule sets, they get to play from where the cue ball is placed (usually the baulk area or the brown spot, depending on local practice).
The penalty for a foul in English pool is typically that your opponent gets two visits to the table, that is, they get an extra shot. If they pot on their first visit, they play again in addition to that extra shot, effectively getting three consecutive shots in the best case. This is a meaningful punishment that can swing frames entirely, which is why avoiding in-offs during open play is essential.
Potting the Black Illegally via In-Off
Here’s where it gets serious. If you pot the black and the cue ball follows it into the pocket, and you’ve done so with an illegal pot, for example, you nominated the wrong pocket, or you still had other balls on the table, the in-off on the black is typically a loss of frame, not just a foul. Under most formal rule sets, incorrectly potting the black (by any means) loses you the game on the spot. The in-off element doesn’t change that outcome; it just adds insult to injury.
Similarly, if you’re playing under rules that require you to call your pocket for the black, and the black goes in the right pocket but the cue ball also goes in, the rules around whether that’s a win or a loss vary. Know your specific rule set cold before you play for anything that matters.
Touching the Cue Ball Into a Pocket
Any action that results in the cue ball entering a pocket other than a legal stroke is a foul. Miscues that send the white in, accidental nudges, double contacts where the cue strikes the white twice on the same shot, all fouls, all result in the opponent’s benefit. This isn’t specific to in-offs but worth flagging because players sometimes argue about the in-off rules when the real issue is a different type of foul entirely.
Playing the Deliberate In-Off: Technique and Application
When to Use It
The deliberate in-off is a niche shot, but it has genuine applications. The most common scenario is using an in-off as a safety shot. Instead of leaving the cue ball in open play after a safety, you intentionally pot the white so your opponent has to play from baulk (or wherever the rules place the ball after a foul). This is a defensive tactic, you’re accepting the foul to gain a positional advantage. It only makes sense if the position you’d otherwise leave is worse than baulk, and if the rules give your opponent ball in hand to baulk rather than anywhere on the table.
In pub-rule environments where the opponent gets ball in hand from baulk after a foul, an in-off can be used to break up a snooker or avoid leaving a sitter for your opponent. It’s a calculated sacrifice. If the rules give full ball-in-hand anywhere on the table, as some more modern rule sets do, this tactic loses much of its value.
Angle and Contact Point
To play an in-off deliberately, you need to visualise two things simultaneously: where you want the object ball to go (or at least, what angle you need from it), and where the cue ball will travel after contact. The angle of deflection off the object ball is determined by the cut angle, a thicker contact sends the cue ball more forward, a thinner contact sends it more across the table.
For an in-off into a corner pocket, you typically want a relatively thin contact on the object ball so the cue ball angles sharply toward the pocket. If the object ball is near the cushion and the pocket is nearby, even a glancing blow can be enough to direct the white in. Practice this by setting up an object ball about two feet from a corner pocket at a 45-degree angle and experimenting with different contact thicknesses to see how the cue ball’s path changes.
Using Pace and Spin
Pace control is critical with in-offs. Hit it too hard and the cue ball can bounce off the cushion before the pocket and miss. Hit it too soft and it may not reach the pocket at all. The ideal pace is firm but controlled, enough to ensure the white travels the full distance but not so much that it becomes unpredictable. On a tight pub table, you often have less room for error than on a full-size frame.
Side spin (running side in particular) can be used to widen or tighten the angle the cue ball takes after contacting the object ball. Running side applied to the cue ball will cause it to run off at a more pronounced angle after contact, which can be useful when the natural angle from the shot doesn’t quite line up with the pocket. However, be cautious with side spin on in-offs, it adds complexity and the margins are already tight. Unless you’re very comfortable with side, stick to a plain ball strike or slight top/bottom to control the cue ball’s speed.
Drills to Understand and Control the In-Off
The Angle Mapping Drill
Place a single red (or one of your object balls) in the centre of the table. Place the cue ball about two feet away at different angles and try to pot the white in each of the four corner pockets via the red. Don’t worry about where the red goes, focus entirely on sending the white in. This teaches you to read the cue ball’s deflection angle off an object ball, which is a skill that transfers directly to positional play and safety shots even when you’re not trying to pot the white.
The Safety In-Off Drill
Set up a cluster of your object balls in a difficult area, behind the black, for example, or tight against a cushion. Now play a shot where your aim is to use an in-off to leave the opponent in baulk with no clear shot. Evaluate the position after each attempt: would you want to be playing from where the cue ball ends up (baulk), or would you have preferred the natural safety position? This drill builds tactical awareness around when the in-off is actually worth the foul penalty.
Common Mistakes and Misconceptions
Assuming All In-Offs Are Fouls
Pub pool culture has drilled into many players the idea that the white going in a pocket is always bad. As covered above, that’s not universally true. The result depends on the specific shot, the specific rule set, and the context within the frame. If you’re playing in a league or competition, take ten minutes to read the rules beforehand. It can genuinely change the outcome of a tight frame.
Misidentifying the Contact
Players often disagree about whether the cue ball hit an object ball before going in, or whether it went directly into the pocket. A direct in-off (white goes straight into the pocket with no other contact) is always a foul. If there’s a dispute about contact, the standard approach is to replay the shot, though in casual play this usually just leads to an argument. Playing at pace and on thin cushion-to-pocket paths makes contact ambiguous, cleaner contact positions eliminate this problem entirely.
Forgetting the Penalty Value
New players often commit an in-off without thinking about the consequence. Two visits for your opponent when they have three balls left and you have none is almost certainly a lost frame. The instinct to always attempt a pot, even a risky one that might send the white in, needs to be tempered with an awareness of what a foul costs you at that stage of the frame. Sometimes the right shot is a deliberate safety that keeps the white on the table, even if the position is less comfortable.
Equipment Notes
On the subject of equipment, the type of balls you use affects how the cue ball behaves after contact. Worn or mismatched balls in pub environments can produce unpredictable deflections, which makes in-offs harder to judge accurately. If you’re serious about improving, practicing on good quality equipment makes a genuine difference. Take a look at our guide to English pool balls if you’re looking to understand what specifications matter for consistent play. Likewise, the cue you use affects touch and feel on these precision shots, our English pool cues buyer guide covers what to look for if you’re in the market for an upgrade.
Frequently Asked Questions
If I pot the black and the white follows it in, do I win or lose?
Under EPA rules, if you’ve correctly potted the black, in the right pocket, with no other balls left on the table, and the cue ball also enters a pocket on the same shot, you win the frame. The in-off does not negate a legal pot of the black. However, many pub leagues use house rules where this would be called a loss, so always confirm which rules are in play before the match starts.
Can I use an in-off deliberately as a safety shot?
Yes, in certain situations it makes tactical sense. If your opponent will get ball-in-hand only in baulk after a foul (not anywhere on the table), and the position you’d otherwise leave from a conventional safety is worse than baulk, an intentional in-off can be a valid strategy. You’re accepting the foul penalty to control where your opponent plays from. It’s not a shot for beginners, but experienced players use it as a calculated defensive option.
Is the in-off the same as a cannon?
No. A cannon is when the cue ball contacts two object balls in succession, neither ball needs to enter a pocket for a cannon to occur. An in-off specifically involves the cue ball entering a pocket, usually after contacting an object ball first. In some shots you can combine both: the cue ball contacts an object ball (cannon), then drops into a pocket (in-off), but the two terms describe different elements of what happened, not the same thing.
