What is Slope Rating?
Slope rating (a term trademarked by the USGA) is a measurement of the difficulty of a course for bogey golfers relative to the course rating. Course rating tells scratch golfers how difficult the course will be; slope rating tells bogey golfers how difficult it will be. The minimum slope is 55 and the maximum is 155 (slope does not relate specifically to strokes played as course rating does). The slope rating for a course of average difficulty is 113. Like course rating, slope rating is done for each set of tees on a course, and a course may have a separate slope rating for certain tees for women. Slope rating is a factor in the calculation of handicap index, and is also used to determine course handicap.