Key Takeaways
- The 23 Rule applies to all APA formats except Masters. The combined skill levels of all five players fielded in a team match cannot exceed 23.
- A violation is triggered the moment the rack is struck in the individual match that pushes the team total over the cap. It cannot be undone after that break shot.
- The penalty is zero points for the entire team match night, not just from the point of violation.
- The Senior Rule (max two SL6+ players per match) operates independently of the 23 Rule. A lineup can be legal under the cap and still violate the Senior Rule.
- If a team can never comply with the cap, defined fallback rules allow fielding fewer players while forfeiting the remaining matches.
What Is the APA 23 Rule?
The APA 23 Rule, officially titled the Team Skill Level Limit, states that the combined skill levels of the five players your team fields in a single team match cannot exceed 23. It applies to all APA formats except Masters.
A team playing fewer than five individual matches must still demonstrate that it would not have exceeded 23 if all five matches had been played. Playing fewer matches does not exempt a team from demonstrating compliance with the cap across all five match positions.
★ SL6 and SL7 are Senior Skill Level players. No more than two may appear in a single match. Full skill level breakdown →
Penalty The Penalty: What Actually Happens
The non-offending team keeps all points they earned up to the point the violation occurred, plus receives additional forfeit points for the match in which the rule was broken and any subsequent matches:
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By Format Skill Level Caps by Format
In 9-ball, the skill level number that counts against your 23-point cap is the same number that determines how many points that player must earn to win their individual match. An SL9 costs 9 points toward your team total and must reach 75 points to win. That relationship makes understanding these numbers directly useful for both cap compliance and match strategy.
Balls 1–8: 1 point each when pocketed
9-ball: 2 points when pocketed
Maximum points per rack: 10
Balls pocketed on a scratch or foul are dead; they count for neither player. The match ends the moment either player reaches their required total.
★ SL6 and above are Senior Skill Level players in 9-ball.
Full APA skill level breakdown including 8-ball Games Must Win charts →
Captains 5 Important Points
Once both teams have declared a player for an individual match, the players cannot be changed, unless a change is necessary to avoid a Team Skill Level Limit violation or Limited Senior Skill Level violation.
It is permissible to count the skill level of an eligible rostered player who is not present at the match site toward your team total. This lets you legally field higher-skill players by showing you could have stayed under the cap, but you must forfeit that player's individual match.
During Playoffs, Tri-Annuals, World Qualifiers, and the World Pool Championships, an ineligible player's skill level cannot be used toward the Team Skill Level Limit. Only eligible rostered players (even if absent) may be counted.
Teams are not required to warn their opponent before declaring a player who would push them over the cap. However, the APA manual specifically calls it good sportsmanship to notify the opposing captain so they have the chance to declare a different player first.
If your opponent violates the Team Skill Level Limit, notify the opposing Team Captain immediately. The violation is officially locked in the moment the rack is struck, so catching it before that break shot is the only way the lineup can still be corrected.
Fallback What If Your Team Can't Comply With the Skill Level Limit?
The APA has defined fallback structures for each format when a team cannot comply with the skill level cap:
Field five players whose combined skill levels do not exceed 23.
Play four players whose combined skill levels do not exceed 19 and forfeit the fifth match.
Play three players whose combined skill levels do not exceed 15 and forfeit both the fourth and fifth matches.
Field three players whose combined skill levels do not exceed 13.
Play two players whose combined skill levels do not exceed 10 and forfeit the third match.
Field three players whose combined skill levels do not exceed 14.
Play two players whose combined skill levels do not exceed 11 and forfeit the third match.
Senior Rule The Senior Skill Level Limit Runs Alongside the 23 Rule
Running alongside the 23 Rule is a separate limit: teams may not field more than two Senior Skill Level players in a single match. A Senior Skill Level player is anyone rated SL6 or higher.
Officially when the rack is struck in the individual match involving a third Senior Skill Level player. Points earned in all previous individual matches stand. The ineligible player forfeits their match and the non-offending team receives forfeit points for it.
Once both teams have declared a player, the declared players cannot be changed unless doing so is necessary to avoid a Senior Skill Level violation (or a Team Skill Level Limit violation).
FAQ Frequently Asked Questions
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Does the 23 Rule apply during APA playoffs and national tournaments?
Yes. The rule is in force at all levels. However, at the tournament level, an ineligible player's skill level cannot be used toward the limit. An eligible player who is simply absent can still be counted.
My opponent just broke the 23 Rule - what do I do?
The violation officially occurs when the rack is struck in the violating match. If caught before the break, the lineup can be corrected. After the break, it results in zero points for the offending team.
Can I field the same player in two matches if a teammate doesn't show?
No. Each player plays only one individual match per team match night. If short on players, use the fallback rules and forfeit the remaining matches. Check your local league by-laws for substitute or ghost player rules.
What is the difference between the 23 Rule and the Senior Skill Level Rule?
The 23 Rule limits the combined skill levels of all five players fielded in a team match. The Senior Rule limits how many individual high-skill players (SL6+) can appear in a single match, capped at two. A team can comply with the 23 Rule and still violate the Senior Rule if they field three SL6+ players whose combined total still lands under 23.
Does the 23 Rule apply in Masters division?
No. The Team Skill Level Limit does not apply to Masters division play. Masters is an advanced division with separate eligibility and format rules. Captains playing in Masters should consult their Local League Management for the specific rules in effect.
Does TAP use the same 23 Rule?
TAP uses a similar skill cap structure but with a 25-point team limit instead of 23. The underlying mechanics are the same: the combined skill levels of the players you field cannot exceed the cap for your format. Lineup Magic supports both APA and TAP, with the cap value adjustable for your format.
Keeping track of all valid 5-player combinations that stay under the 23 cap, while also respecting the Senior Rule and accounting for who's available on a given night, is the core problem Lineup Magic solves. The free demo at lineupmagic.com/demo.html shows every legal combination for your roster in seconds with no account required.
Tool What LineupMagic Does for Captains
LineupMagic provides at-a-glance status throughout match night: it shows you only players that you can put up and stay under the cap, who has already played that night, who is absent, whether a given player would trigger a Senior Rule violation, how many match slots have been filled, and the running team total. All of it updates in real time, for every team, in every format.
APA® is a registered trademark of the American Poolplayers Association, Inc. Use of the APA name on this page is descriptive only — to identify the league format this tool is designed to support — and does not imply affiliation, sponsorship, or endorsement by the APA or any other league organization. Lineup Magic is an independent tool developed by Matthew Landry and has no official relationship with the American Poolplayers Association.
Disclaimer: Lineup Magic is an independent tool and is not affiliated with, authorized by, or endorsed by the American Poolplayers Association (APA), TAP, or any pool league organization. Rule information is based on the APA Official Team Manual and is provided for reference only. Always verify compliance with your league operator before match night.
