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Exceptional Score Reduction

Applied automatically after an exceptional score is posted

What Is an Exceptional Score Reduction?

An Exceptional Score Reduction (ESR) is an automatic downward adjustment applied to a player's USGA/GHIN Handicap Index when a single score differential falls 7.0 or more strokes below their Handicap Index at the time the round was played. The reduction ranges from -1.0 to -2.0 strokes and is applied across the player's most recent 20 score differentials.

When Does an Exceptional Score Reduction Apply?

An Exceptional Score Reduction is applied when a score differential is 7.0 or more strokes below a player's USGA/GHIN Handicap Index at the time the round was played.

  • The size of the reduction depends on how far the score differential falls below the Handicap Index:

    If the score differential is between 7.0 and 9.9 strokes below their Handicap Index, a -1.0 reduction will be applied to the player’s most recent 20 score differentials.
  • If the score differential is 10.0 strokes or more below their Handicap Index, a -2.0 reduction will be applied to their most recent 20 score differentials.

Which Scores Does This Rule Cover?

This rule applies to all scores — not just tournament scores — and replaces Section 10-3 of the USGA/GHIN Handicap System.

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