Golf pairing algorithm

[Goat14]

Hey Guys,

I am organizing this years golf trip and it has grown from 6 to 12 players.  In an effort to make to trip more enjoyable I am attempting to arrange it so that everyone gets to play with each other.

I have 12 guys playing four rounds.

Can any help me out.

[saevel25]

A

B

C

D

E

F

ABC

DEF

ABD

CEF

ABE

CDF

ABF

CED

There, everyone plays everyone, need 4 rounds of golf, or two rounds switching after each 9

[Goat14]

I have 12 guys, so I don't think that will work.  Thanks for the effort.

[irishmike27]

http://www.mathpages.com/home/kmath388.htm

Check out the bottom of this link. It gets everyone to play together at least once.

**************.com has a perfect parings tool that you may be able to test drive for free, otherwise you have to pay the fee.

I've stressed about this in the past, and last year when I had two last minute back-outs, we just randomly drew groups before each round, and although not everyone played together, it worked out fine.  This year I have 16 over the first 5 rounds (which you'll read about on ************** as the perfect paring-everyone plays with everyone else once with no repeats) and the sixth and final round is set up by gross scores throughout the trip.

Enjoy

[SCfanatic35]

I don't think it is possible to do the scenario you are asking.  I think you need 5 rounds or more to guarantee everyone playing everyone else at least once.

[chilepepper]

keep it simple......just pull numbers out of a hat each morning

[saevel25]

My mind farted on that one, wow, big mistake :p