Calculate the score differential for one round (an input to your WHS Handicap Index).
Score Differential = (Adjusted Gross Score − Course Rating) × 113 ÷ Slope Rating. Under the World Handicap System your Handicap Index is the average of the lowest 8 of your most recent 20 Score Differentials (USGA Rules of Handicapping), so one round alone cannot give an official Index. Daily conditions adjustment (PCC) is not included. This is for 18-hole rounds, rounded to the nearest tenth (.5 up) as in
USGA Rule 5.1a; enter your Adjusted Gross Score (hole scores capped at net double bogey), and a posted score may differ once PCC is applied.