IanMcC
Well-known member
Many thanks. As you say, the shading in the UK book makes it mathematically incorrect. Makes perfect sense the way you have written it here.Unfortunately the CONGU manual confuses this calculation massively by means of ill thought out shaded boxes (the shading is different in the USGA manual, so the calculation is much clearer), but CR-Par is added at the end, so...
CH = [ (HI/2) x (9 hole slope/113) ] + (9 hole rating – 9 hole par)
For you, this means: [ (7.8/2) x (125/113) ] + (35.5 – 37) = (3.9 x 1.11) + (-1.5) = 4.3 - 1.5 = 2.8 = 3