Scottish Golf have applied a playing conditions calculation (PCC) of 3 shots to yesterday’s scores. When abnormal course or weather conditions cause scores to be unusually high or low on a given day, a “Playing Conditions Calculation” will adjust Score Differentials to better reflect a player’s actual performance.
The score from Longniddry will have a lower differential than you would expect. You can see the details if you log in to your account on the Scottish Golf website.