Calculating the net score for an 18-hole round requires the stroke indexes from 1 to 18 assigned to each hole. If the round is played on a 9-hole course, an amended stroke index allocation is needed.
The calculator below converts the stroke indexes of a 9-hole course to an 18-hole round. This is useful when the scorecard does not provide stroke indexes for an 18-hole golf round.
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update: April 2025
