There is no direct equivalent. There has been talk about introducing something similar to the US system - don't know how far down the line they are. SSS - Standard Scratch Score is the score a scratch golfer would score and is a general starting number for calculating handicap deductions/increases in non-comp rounds that count for handicap (supplementary rounds) - this is the number that is on the scorecard, it may vary depending on the tees. CSS - Competition Scratch Score is calculated based on the scores recorded in a competition and the handicaps of the players involved. This is used for cutting/increasing handicaps in that comp. There is a calculation for this on CONGUs website - if you have a maths degree you may understand it. You may well see Slope & Course ratings on some courses that get a lot of US tourist traffic - I was playing around Irvine this week and certainly Glasgow Gailes were displaying a certificate of slope & course ratings.