WINTD-Pairing Teammates

[Terry_Winchester]

I’ve got a tournament set to not pair teammates. The options are: Yes, No, Only if Necessary. I’ve selected NO, but the final round pairs teammates anyway on top board.

My only question is why does it do this when the option isn’t set to “Only if Necessary.”

I understand, and agree, that in the final round, the rule should be set to override, but in this particular case it isn’t, but pairs them anyway.

Here’s the Pairing Logic:

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Pairing Section k12, Round 5, on Thu Sep 15 16:48:18 2016

Options Used:
High (Equalize) Limit=200
Low (Alternate) Limit=80
Teammates Not Paired

**********Natural Pairings

Score Group 4.0
0 AL OK Rodriguez, Emilio(1:2270,b,a) vs Sitiriche, Jaime(3:2029,b,a)
Teammate
0 AL OK Freyre, Jorge F(2:2198,w,a) vs Gambrel, P A(4:1683,w,a)
Teammate
Score Group 3.0
0 AL OK Flynn, Collin Patr(5:235,b,c) vs Dibble, Stephen M(6:1585,b,b)
Drop 1.0 Points
Score Group 2.0
0 OK OK Jones, Greg(7:1494,b,c) vs Inactive Id(9:nnnn,w,d)
0 OK OK Varallo, Charity(8:657,w,c) vs Excell, Braxton M(10:nnnn,b,d)
Duplicate
0 AL OK Burk, Michael Dway(11:nnnn,w,d) vs Chambliss, Corey(12:923,w,c)
Drop 0.5 Points Drop/Raise Unrated
Score Group 1.5
0 OK OK Negroni, Pedro(13:nnnn,b,e) vs Winchester, Terry(14:1677,w,b)
Drop 0.5 Points Drop/Raise Unrated
Score Group 1.0
0 AL OK Grolemund, William(15:1626,b,b) vs Landrum, Tommy(17:nnnn,b,e)
0 AL OK Salinger, Steven D(16:1571,w,b) vs Hebert, Andre(18:nnnn,w,d)
0 OK OK Rodriguez, J Bienv(19:nnnn,w,e) vs Misner, J Philip(20:nnnn,b,e)
Drop 1.0 Points Teammate Drop/Raise Unrated

Total value 42482.254630
0001 Duplicate
0003 Teammate
0003 Drop/Raise Unrated
0006 Wrong Alternate
0004 Drops for 3.000000

**********Final Pairings

Score Group 4.0
169I OK LO Rodriguez, Emilio(1:2270,b,a) vs Freyre, Jorge F(2:2198,w,a)
Teammate
346 AL HI Sitiriche, Jaime(3:2029,b,a) vs Dibble, Stephen M(6:1585,b,b)
Drop 2.0 Points
0I OK OK Gambrel, P A(4:1683,w,a) vs Flynn, Collin Patr(5:235,b,c)
Drop 1.0 Points
Score Group 2.0
0 OK OK Jones, Greg(7:1494,b,c) vs Burk, Michael Dway(11:nnnn,w,d)
0 AL OK Varallo, Charity(8:657,w,c) vs Inactive Id(9:nnnn,w,d)
80I AL LO Excell, Braxton M(10:nnnn,b,d) vs Negroni, Pedro(13:nnnn,b,e)
Drop 0.5 Points Drop/Raise Unrated
Score Group 1.5
51I OK OK Chambliss, Corey(12:923,w,c) vs Grolemund, William(15:1626,b,b)
Drop 0.5 Points
Score Group 1.0
0 OK OK Winchester, Terry(14:1677,w,b) vs Landrum, Tommy(17:nnnn,b,e)
0 AL OK Salinger, Steven D(16:1571,w,b) vs Rodriguez, J Bienv(19:nnnn,w,e)
40 OK OK Hebert, Andre(18:nnnn,w,d) vs Misner, J Philip(20:nnnn,b,e)
Drop 1.0 Points Drop/Raise Unrated

Total value 11924.409936
0001 Teammate
0002 Drop/Raise Unrated
0004 Interchange
0004 Wrong Alternate
0001 Over High Limit
0002 Over Low Limit
0005 Drops for 5.000000

[wintdoan]

It probably has to really dip down into the low score groups to find opponents for all those 4.0’s. Did you put a limit on the drop size? If you did, then it probably can’t pair the section without violating that and the drop size limit takes precedence. If you didn’t limit the drop size you probably need a much higher effort level.

[Allen]

IT was too large of a rating difference so the teammates remain paired. You would have to change the limit setting to avoid that - or let it pair and then change the pairing manually if you really wanted to avoid the teammate pairing.

[wintdoan]

@Allen

IT was too large of a rating difference so the teammates remain paired. You would have to change the limit setting to avoid that - or let it pair and then change the pairing manually if you really wanted to avoid the teammate pairing.

Actually, that’s not correct. The teammate restriction (if it’s set to “No”, not “Only if Necessary”) in theory overrides everything else except not repeating pairings. In this case, it’s obviously quite difficult to come up with a pairing that avoids teammates at some level. The top score group is all from one team, and the bottom ones are mainly just from a couple so even in the bottom scoregroups, many players will have largely run out of opponents in nearby scoregroups. If getting pairings for the 4.0’s produces a teammate pairing at the bottom, it will prefer making the teammate pairing at the top instead.

(This is probably an ideal situation for “Pair Teammates at or Above…”).

[scottrparker]

@wintdoan

@Allen

IT was too large of a rating difference so the teammates remain paired. You would have to change the limit setting to avoid that - or let it pair and then change the pairing manually if you really wanted to avoid the teammate pairing.

Actually, that’s not correct. The teammate restriction (if it’s set to “No”, not “Only if Necessary”) in theory overrides everything else except not repeating pairings. In this case, it’s obviously quite difficult to come up with a pairing that avoids teammates at some level. The top score group is all from one team, and the bottom ones are mainly just from a couple so even in the bottom scoregroups, many players will have largely run out of opponents in nearby scoregroups. If getting pairings for the 4.0’s produces a teammate pairing at the bottom, it will prefer making the teammate pairing at the top instead.

(This is probably an ideal situation for “Pair Teammates at or Above…”).

Or for getting more players from more teams. When you have too many players representing too few teams you’re apt to run into situations like this.

[Allen]

@wintdoan

@Allen

IT was too large of a rating difference so the teammates remain paired. You would have to change the limit setting to avoid that - or let it pair and then change the pairing manually if you really wanted to avoid the teammate pairing.

Actually, that’s not correct. The teammate restriction (if it’s set to “No”, not “Only if Necessary”) in theory overrides everything else except not repeating pairings. In this case, it’s obviously quite difficult to come up with a pairing that avoids teammates at some level. The top score group is all from one team, and the bottom ones are mainly just from a couple so even in the bottom scoregroups, many players will have largely run out of opponents in nearby scoregroups. If getting pairings for the 4.0’s produces a teammate pairing at the bottom, it will prefer making the teammate pairing at the top instead.

(This is probably an ideal situation for “Pair Teammates at or Above…”).

Well you would certainly know how your program works!!