Score Differential
The Score Differential is a value calculated after every qualifying round within the World Handicap System (WHS) to update a player's Handicap Index. It's calculated using the formula (113 / Slope Rating) × (Adjusted Gross Score − Course Rating − PCC), where the Adjusted Gross Score is a player's gross score capped per hole at net double bogey. This capping of hole scores for handicap purposes is in line with WHS Rule 3.1b.
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