Editing Duplicate bridge (section)

===Teams game===
In a teams tournament, two pairs normally constitute a team. (Teams of five or six members are often permitted, but each set of boards will only be played by two pairs in the team, i.e. four members of the team.) If there are just two teams, they compete using two tables and having one pair from each team seated at each table, in opposite directions. (For example, Team A may sit North-South at table 1 and East-West at table 2; then Team B would sit East-West at table 1 and North-South at table 2.) Similar arrangements apply if there are more than two teams in the competition. Depending on the number of teams competing and the structure of the tournament, a relatively larger number of boards may be played in each round of the movement (usually six to eight for "[[Swiss system tournament|Swiss]] teams", usually 12, 24, or more for [[single-elimination tournament|knockout]] events). The boards are moved (sometimes by a [[caddy (bridge)|caddy]]) so that they are all eventually played at both tables (or more if there are four teams or more).

Suppose Team A plays Team B. The first time a hand is played, one partnership from Team A (say) takes the North-South cards and one partnership from Team B takes the East-West cards; when the hand is played again, it is played by the other two partnerships, but this time with Team A holding the East-West cards and Team B holding the North-South cards. Of course the teams may not discuss the deals between the two plays. Normally, each of the two tables deals and plays half of the scheduled boards at the beginning of the match, and they are exchanged halfway through the match. (If there are more than two teams, the movement is more complicated.) After each deal has been played twice, the scores for each deal are compared, and a net score is given depending on the net total score from the two times the deal was played. For example, if one pair scores +620 on a deal, and their teammates score -600, then the team's net score on that deal is +20.

Several forms of scoring are then used to calculate the overall winner of the match with [[#IMP scoring|IMP scoring]] and Board-a-match (resembling [[#Matchpoint scoring|matchpoint scoring]]) being the most common.
* At '''IMP scoring''', the net score is converted using an IMPs table that "compresses" big differences in score. For instance if the net score was 20, as in the above example, this would be converted to a score of 1 IMP, while a net score of say 450 (e.g. +620 versus +170) is worth 10 IMPs. If the match between the two teams is part of a larger competition, then usually the total difference in IMPs in a single match is again converted into so-called [[Bridge scoring#Victory Point scoring|Victory Points]] or VPs. The VPs awarded to each team in their matches are summed up to determine the overall team ranking.
* At '''Board-a-match''' (BAM), each hand has equal weight; each hand is won, lost, or tied.

Also used are:
* '''Total point score''', known as aggregate scoring in England, uses no conversion whatsoever; total-point scoring was more popular in the past, and is rarely used today. Only one event in England, the Hubert Phillips Bowl for Mixed Pivot teams, uses this form of scoring.<ref>{{cite web |url=http://www.ebu.co.uk/competitions/hubert-phillips-bowl |title = Hubert Phillips Bowl {{!}} English Bridge Union}}</ref> Similarly, there is one event in Wales, the Cambria Cup for Mixed Pivot Teams. 
* '''Patton scoring''' combines the methods of Board-a-match and Total point scoring. <ref>{{cite web |url=https://www.ebu.co.uk/newsletters/?id=1&page=8 |title = EBU Magazine {{!}} Tournament Focus Winter 2009}}</ref>