Golf · Rules of Golf
Rule 23: Four-Ball
1 parts · 5 tests · 50 facts · updated 12 October 2026 · markdown
Two partners each playing their own ball: the side's score, scorecard, round, representation, partners' actions and penalties.
23.231Four-Ball
Scoring, the side's scorecard, representing the side, partners' actions and when a penalty reaches both.
Test 1Four-Ball scoringTake a test
Each partner plays their own ball and the better score counts for the side.
Source: Rules of Golf (2023), Rule 23.2a · recall
When only one partner completes the hole, that partner's score is the side's.
Source: Rules of Golf (2023), Rule 23.2a · applied
With no score for the hole, the side loses it in match play.
Source: Rules of Golf (2023), Rule 23.2a · applied
A stroke-play side with no score for a hole is disqualified unless it corrects in time.
Source: Rules of Golf (2023), Rule 23.2a; Rule 3.3c · applied
Best-Ball is a variation of Four-Ball in which an individual plays a side.
Source: Rules of Golf (2023), Rule 23.1 · recall
Rule 11.2 does not apply here, and the player's ball does not count for the side.
Source: Rules of Golf (2023), Rule 23.2c · applied
The ordinary Rules for match and stroke play apply, with Rule 23's changes.
Source: Rules of Golf (2023), Rule 23.1 · recall
A side needs at least one completed score.
Source: Rules of Golf (2023), Rule 23.2a · applied
The other partner does not need to hole out.
Source: Rules of Golf (2023), Rule 23.2a · applied
On D only partner 2 finished, with 6. A counts 4, B counts 5 and C counts 3.
Source: Rules of Golf (2023), Rule 23.2a · applied
Test 2The side's scorecard in stroke playTake a test
The side's gross scores go on a single scorecard.
Source: Rules of Golf (2023), Rule 23.2b(1) · recall
At least one gross score per hole, and entering both is allowed.
Source: Rules of Golf (2023), Rule 23.2b(1) · recall
There is no penalty for entering more than one partner's score.
Source: Rules of Golf (2023), Rule 23.2b(1) · applied
Each score must be identified as the score of the partner who made it.
Source: Rules of Golf (2023), Rule 23.2b · applied
The Committee decides which score counts, including any handicaps.
Source: Rules of Golf (2023), Rule 23.2b(2) · recall
With equal scores the Committee may use either, and switches if one proves wrong.
Source: Rules of Golf (2023), Rule 23.2b(2) · applied
Only one partner needs to certify under Rule 3.3b(2).
Source: Rules of Golf (2023), Rule 23.2b(1) · applied
The side enters and certifies, the Committee decides what counts.
Source: Rules of Golf (2023), Rule 23.2b · applied
The lowest gross or net score counts.
Source: Rules of Golf (2023), Rule 23.2b(2) · applied
D carries no partner's mark. A and B name one partner each, and C names both.
Source: Rules of Golf (2023), Rule 23.2b · applied
Test 3The round, the hole and representing the sideTake a test
One partner's stroke to start the first hole starts the side's round.
Source: Rules of Golf (2023), Rule 23.3a · recall
The other partner must hole out, choose not to, or be disqualified for the hole.
Source: Rules of Golf (2023), Rule 23.3c(2) · applied
It is not necessary for both partners to be present or to play every hole.
Source: Rules of Golf (2023), Rule 23.4 · applied
An arriving partner starts only between holes, before the other partner starts one.
Source: Rules of Golf (2023), Rule 23.4 · applied
They may still advise and help, and take actions for the other partner.
Source: Rules of Golf (2023), Rule 23.4 · applied
A breach of Rule 23.4 carries the general penalty.
Source: Rules of Golf (2023), Rule 23.4 · recall
A hole is completed once its result is decided.
Source: Rules of Golf (2023), Rule 23.3c(1) · applied
The arriving partner joins between holes.
Source: Rules of Golf (2023), Rule 23.4 · applied
The round ends when the side completes the final hole.
Source: Rules of Golf (2023), Rule 23.3b · applied
A is before anyone has started the 6th. At B an opponent has already teed off, and C and D are later still.
Source: Rules of Golf (2023), Rule 23.4 · applied
Test 4Partners helping each otherTake a test
A player may take any action concerning the partner's ball the partner could take.
Source: Rules of Golf (2023), Rule 23.5a · applied
An action concerning the partner's ball is treated as the partner's own.
Source: Rules of Golf (2023), Rule 23.5b · applied
Partners must not agree to leave a ball in place to help anyone.
Source: Rules of Golf (2023), Rule 23.5a; Rule 15.3a · applied
When it is the side's turn, either partner may play next.
Source: Rules of Golf (2023), Rule 23.6 · applied
Continuing after a concession to help the partner wipes out the partner's score for the hole.
Source: Rules of Golf (2023), Rule 23.6 · applied
A player and their caddie may help the partner in any way the partner's own caddie may.
Source: Rules of Golf (2023), Rule 23.5a · applied
Rule 23.8 is about the player's own next stroke.
Source: Rules of Golf (2023), Rule 23.8 · applied
Yellow handles Blue's ball just as Blue could.
Source: Rules of Golf (2023), Rule 23.5a · applied
Rules 23.5, 23.6, 23.7 and 23.8.
Source: Rules of Golf (2023), Rule 23.5-23.8 · recall
When it is the side's turn, the partners choose who plays.
Source: Rules of Golf (2023), Rule 23.6 · applied
Test 5When a penalty hits one partner or bothTake a test
Penalties other than disqualification normally apply only to the player.
Source: Rules of Golf (2023), Rule 23.9a(1) · applied
The player has no score for the side, but the partner continues.
Source: Rules of Golf (2023), Rule 23.9a(1) · applied
A breach that helps the partner's play applies to the partner too.
Source: Rules of Golf (2023), Rule 23.9a(2) · applied
A wrong ball is never treated as helping the partner or hurting an opponent.
Source: Rules of Golf (2023), Rule 23.9a(2) · applied
Rule 1.2 is on the list where one partner's disqualification takes the side with it.
Source: Rules of Golf (2023), Rule 23.9b(1) · applied
This group of breaches disqualifies the side only if both partners breach at the same hole.
Source: Rules of Golf (2023), Rule 23.9b(2) · applied
In all other cases the player stays in, but that hole's score is lost for the side.
Source: Rules of Golf (2023), Rule 23.9b(3) · applied
Most penalties stay with the player; some reach the side.
Source: Rules of Golf (2023), Rule 23.9 · applied
In stroke play a 14-club breach also penalises the partner.
Source: Rules of Golf (2023), Rule 23.9a(2); Rule 4.1b · applied
A is the 14-club breach, which reaches the partner. B is a wrong ball, and C and D touch only the player's own ball.
Source: Rules of Golf (2023), Rule 23.9a(2) · applied
Sources
Rules of Golf, effective January 2023 (The R&A and USGA), Rule 23 (paraphrased in original wording; original questions authored from the Rules, not reproduced)
- Rules of Golf (2023), Rule 23.2a6
- Rules of Golf (2023), Rule 23.46
- Rules of Golf (2023), Rule 23.2b(1)4
- Rules of Golf (2023), Rule 23.2b3
- Rules of Golf (2023), Rule 23.2b(2)3
- Rules of Golf (2023), Rule 23.5a3
- Rules of Golf (2023), Rule 23.63
- Rules of Golf (2023), Rule 23.9a(2)3
- Rules of Golf (2023), Rule 23.12
- Rules of Golf (2023), Rule 23.9a(1)2
- Rules of Golf (2023), Rule 23.2a; Rule 3.3c1
- Rules of Golf (2023), Rule 23.2c1
- Rules of Golf (2023), Rule 23.3a1
- Rules of Golf (2023), Rule 23.3c(2)1
- Rules of Golf (2023), Rule 23.3c(1)1
- Rules of Golf (2023), Rule 23.3b1
- Rules of Golf (2023), Rule 23.5b1
- Rules of Golf (2023), Rule 23.5a; Rule 15.3a1
- Rules of Golf (2023), Rule 23.81
- Rules of Golf (2023), Rule 23.5-23.81
- Rules of Golf (2023), Rule 23.9b(1)1
- Rules of Golf (2023), Rule 23.9b(2)1
- Rules of Golf (2023), Rule 23.9b(3)1
- Rules of Golf (2023), Rule 23.91
- Rules of Golf (2023), Rule 23.9a(2); Rule 4.1b1