Golf pairings software
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I have made parings for groups of 8, 12, and 16 over 6 rounds. I have also used the the golf trip genius perfect paring software when it was offered for a free trial a couple of years ago. Originally I agreed, that the cost was a bit steep for me to upgrade to the full version-but now they offer a basic version that includes basically just the parings creator for $50-might be worth it.