Abstract: A method of mapping the going conditions for a racecourse comprises surveying the racecourse soil conductivity over the course using soil conductivity measuring means and mapping the conductivity data produced by the conductivity measuring means according to the locations at which the conductivity data were obtained, so as to produce a map of the racecourse showing variations in soil conductivity. The racecourse is then sectioned along its length so as to produce a series of zones, wherein the variations shown in the soil conductivity map are utilized in choosing the sizes of the zones, the going condition in each zone is determined and a map of the racecourse displaying the going conditions along the racecourse is produced.