



 
Hi Richard, Here's a method that would even run to a fifth round. Set your players up in a 4x5 grid with 3 "blanks" representing round 1
Now slide the rows up 0,1,2,3 places.
And do it again:
And again:
(And once more:
With a fifth round this would guarantee that everybody played the same number of threeball and fourball rounds, too. This idea will work any time the number of groups is a prime number and no bigger than the number of players per group. So you could use it for 23 players in 3 fiveball and two fourball groups, or eight players in two threesomes and a pair. (If you didn't mind odd group sizes you could "play the columns" for a sixth round with no repetitions.) Good Hunting!
 


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