text: Some handicapping systems provide for an adjustment to the course rating to account for variations in playing conditions on any given day, e.g. course setup and weather, and it is against this adjusted rating that handicaps are assessed and maintained. Examples of adjusted ratings are Playing Conditions Calculation (World Handicap System), Competition Scratch Score (CONGU Unified Handicapping System), Daily Scratch Rating (Golf Australia Handicap System), and Calculated Rating (South African Handicap System).
  Analogous to course rating is the bogey rating, which is a measure of the playing difficulty of a course for a bogey golfer.
  Slope Rating
  Devised by the USGA, the Slope Rating of a golf course describes the relative difficulty of a course for a bogey golfer compared to a scratch golfer. Slope Ratings are in the range 55 to 155, with a course of standard relative difficulty having a rating of 113; the higher the number, the more relatively difficult the course is.
  Playing or course handicap
  In most major handicapping systems, a golfer does not use their exact handicap (or handicap index) directly, but use it to produce their playing or course handicap. For some systems, this means simply rounding the exact handicap to the nearest whole number; however, systems that use slope ratings require a more complex calculation to produce a course handicap with some also factoring in the course rating: