What is a slope rating?
A slope rating is the USGA’s mark that indicates the measurement of the relative difficulty of a course for players who are not scratch golfers compared to the USGA course rating (e.g., compared to the difficulty of a course for scratch golfers). A slope rating is computed from the difference between the bogey rating and the USGA course rating. The lowest slope rating is 55 and the highest is 155. A golf course of standard playing difficulty has a slope rating of 113.
