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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

  1. Each partner plays their own ball and the better score counts for the side.

    Source: Rules of Golf (2023), Rule 23.2a · recall

  2. When only one partner completes the hole, that partner's score is the side's.

    Source: Rules of Golf (2023), Rule 23.2a · applied

  3. With no score for the hole, the side loses it in match play.

    Source: Rules of Golf (2023), Rule 23.2a · applied

  4. 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

  5. Best-Ball is a variation of Four-Ball in which an individual plays a side.

    Source: Rules of Golf (2023), Rule 23.1 · recall

  6. 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

  7. The ordinary Rules for match and stroke play apply, with Rule 23's changes.

    Source: Rules of Golf (2023), Rule 23.1 · recall

  8. A side needs at least one completed score.

    Source: Rules of Golf (2023), Rule 23.2a · applied

  9. The other partner does not need to hole out.

    Source: Rules of Golf (2023), Rule 23.2a · applied

  10. 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

  1. The side's gross scores go on a single scorecard.

    Source: Rules of Golf (2023), Rule 23.2b(1) · recall

  2. At least one gross score per hole, and entering both is allowed.

    Source: Rules of Golf (2023), Rule 23.2b(1) · recall

  3. There is no penalty for entering more than one partner's score.

    Source: Rules of Golf (2023), Rule 23.2b(1) · applied

  4. Each score must be identified as the score of the partner who made it.

    Source: Rules of Golf (2023), Rule 23.2b · applied

  5. The Committee decides which score counts, including any handicaps.

    Source: Rules of Golf (2023), Rule 23.2b(2) · recall

  6. With equal scores the Committee may use either, and switches if one proves wrong.

    Source: Rules of Golf (2023), Rule 23.2b(2) · applied

  7. Only one partner needs to certify under Rule 3.3b(2).

    Source: Rules of Golf (2023), Rule 23.2b(1) · applied

  8. The side enters and certifies, the Committee decides what counts.

    Source: Rules of Golf (2023), Rule 23.2b · applied

  9. The lowest gross or net score counts.

    Source: Rules of Golf (2023), Rule 23.2b(2) · applied

  10. 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

  1. One partner's stroke to start the first hole starts the side's round.

    Source: Rules of Golf (2023), Rule 23.3a · recall

  2. 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

  3. It is not necessary for both partners to be present or to play every hole.

    Source: Rules of Golf (2023), Rule 23.4 · applied

  4. An arriving partner starts only between holes, before the other partner starts one.

    Source: Rules of Golf (2023), Rule 23.4 · applied

  5. They may still advise and help, and take actions for the other partner.

    Source: Rules of Golf (2023), Rule 23.4 · applied

  6. A breach of Rule 23.4 carries the general penalty.

    Source: Rules of Golf (2023), Rule 23.4 · recall

  7. A hole is completed once its result is decided.

    Source: Rules of Golf (2023), Rule 23.3c(1) · applied

  8. The arriving partner joins between holes.

    Source: Rules of Golf (2023), Rule 23.4 · applied

  9. The round ends when the side completes the final hole.

    Source: Rules of Golf (2023), Rule 23.3b · applied

  10. 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

  1. A player may take any action concerning the partner's ball the partner could take.

    Source: Rules of Golf (2023), Rule 23.5a · applied

  2. An action concerning the partner's ball is treated as the partner's own.

    Source: Rules of Golf (2023), Rule 23.5b · applied

  3. 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

  4. When it is the side's turn, either partner may play next.

    Source: Rules of Golf (2023), Rule 23.6 · applied

  5. 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

  6. 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

  7. Rule 23.8 is about the player's own next stroke.

    Source: Rules of Golf (2023), Rule 23.8 · applied

  8. Yellow handles Blue's ball just as Blue could.

    Source: Rules of Golf (2023), Rule 23.5a · applied

  9. Rules 23.5, 23.6, 23.7 and 23.8.

    Source: Rules of Golf (2023), Rule 23.5-23.8 · recall

  10. 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

  1. Penalties other than disqualification normally apply only to the player.

    Source: Rules of Golf (2023), Rule 23.9a(1) · applied

  2. The player has no score for the side, but the partner continues.

    Source: Rules of Golf (2023), Rule 23.9a(1) · applied

  3. A breach that helps the partner's play applies to the partner too.

    Source: Rules of Golf (2023), Rule 23.9a(2) · applied

  4. A wrong ball is never treated as helping the partner or hurting an opponent.

    Source: Rules of Golf (2023), Rule 23.9a(2) · applied

  5. 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

  6. 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

  7. 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

  8. Most penalties stay with the player; some reach the side.

    Source: Rules of Golf (2023), Rule 23.9 · applied

  9. In stroke play a 14-club breach also penalises the partner.

    Source: Rules of Golf (2023), Rule 23.9a(2); Rule 4.1b · applied

  10. 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