An "Index" by definition means you are using the USGA formula to calculate handicaps. HS follows the exact USGA formula to calculate indexes. If you select to calculate a custom handicap, indexes will not be shown.
A "Factor" by definition means you are using the RCGA formula to calculate handicaps. HS follows the exact RCGA formula to calculate factors. If you select to calculate a custom handicap, factors will not be shown.
If you are calculating a custom handicap, the handicap is calculated according to the custom parameters you have set up. If you are using the USGA calculation mode, a course handicap is the conversion of a golfer's index to a course handicap and uses the following formula.
Course Handicap = Index X (Slope of Tee / 113)
A handicap may appear with a letter proceeding it. The following nomenclature is used:
* A handicap was not calculated. If you manually entered a handicap it remains stagnant. Note: HS looks at score dates when calculating a handicap. Thus if all your scores have the date 05/01/2006 or after and you specify a date of 04/01/2006 for the revision date, no handicaps will be calculated.
L Used for USGA or RCGA 18 hole handicaps only. This indicates a "LOCAL" 18 hole handicap. The 18 hole handicap exceeds the USGA handicap ceiling. See USGA/RCGA Mode.
R For USGA or RCGA handicaps: Indicates that the handicap was reduced by the USGA "REDUCTION OF HANDICAP INDEX FOR EXCEPTIONAL TOURNAMENT PERFORMANCE". For detailed information see section 5-2 of the USGA HANDICAP SYSTEM manual. For custom handicaps: Indicates that you have marked to use only tournament scores to calculate a handicap.
N Indicates a nine hole handicap.
J Used for USGA or RCGA 9 hole handicaps only. This indicates a "LOCAL" 9 hole handicap. The 9 hole handicap exceeds the USGA handicap ceiling. See USGA/RCGA Mode.