Course Rating represents the difficulty of a golf course for a Scratch Golfer (0.0 Handicap Index) and is calculated to the nearest 0.1.

Slope Rating represents the relative difficulty of a course for a Bogey Golfer (20 to 24 Handicap) compared to a Scratch Golfer.

• A course with long carries, narrow fairways, lots of hazards and thick rough will have a high Slope Rating because these features are more of a challenge to bogey golfers.
• Slope Rating can be anywhere between 55 and 155.
• 113 is the neutral Slope Rating that indicates a course of equal difficulty for Scratch and Bogey players.
• The GB&I average Slope Rating is 125.