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How to Keep Score

Duplicate | Teams | Rubber | Chicago

Teams

Team play has become popular in clubs and tournaments. Two members of your team, playing as a partnership, sit North-South at one table. Two other members of your team, also playing as a partnership, sit East-West at a different table. The two pairs from the opposing team fill the empty spots at the two tables. During the course of the match, exactly the same boards are played at both tables.

Each player should have a score card to record the score on each board. The card has a row for each board. The beginning of North’s card from table 1, when completed, might look like this:

Board
Final
Score
IMPs
Deal #
Vul
Contract
By
Plus
Minus
Plus
Minus
N 1
-
4S
S
420
E 2
NS
5D*
W
500
S 3
EW
3NT
W
690
W 4
All
2H
N
140

 

Note that the scoring for actual contract is the same as in duplicate scoring. What will change is how the scores at both tables are compared.

In the contract column 5D* (diamonds) means 5D doubled. The “By” column shows who was declarer. The score is recorded from North’s point of view, so when West goes down in 5D, it is positive. The IMPs can be filled in only when this card is compared with one from the other room. Suppose that our teammate East at the other table has a card like this:

Board
Final
Score
IMPs
Deal #
Vul
Contract
By
Plus
Minus
Plus
Minus
N 1
-
4S
S
450
E 2
NS
4H
N
620
S 3
EW
6NT
W
1440
W 4
All
4H
N
100

 

Now the differences can be converted to IMPs for the team. The following standard table is used:

Point difference IMPs
0 - 10 0
20 - 40 1
50 - 80 2
90 - 120 3
130 - 160 4
170 - 210 5
220 - 260 6
270 - 310 7
320 - 360 8
370 - 420 9
430 - 490 10
500 - 590 11
600 - 740 12
750 - 890 13
900 - 1090 14
1100 - 1290 15
1300 - 1490 16
1500 - 1740 17
1750 - 1990 18
2000 - 2240 19
2250 - 2490 20
2500 - 2990 21
3000 - 3490 22
3500 - 3990 23
4000 or more 24

 

So in the example, on the first board the difference between the two tables was 30 against us, and we lose 1 IMP. On the second board we lose 3 IMPs. Although our North-South pair defeated West’s 5, with the same cards our East-West pair allowed North to play and make 4. On board 3, where we bid the small slam while they stopped in game, we gain 13 IMPs for a 750-point difference. On board 4 both Norths made nine tricks in hearts, but we gain 6 IMPs because our North-South pair just bid 2 rather than 4. Overall we are 15 IMPs ahead on those four boards.

At the end of the match, the result is the difference in IMPs between the teams. Sometimes there is then a further conversion of this margin into a match result, in which some fixed number of victory points is apportioned between the teams. There is no standard conversion table, but here is an example table for a 24-board match:

IMP difference Victory Points
0 - 2 10 - 10
3 - 6 11 - 9
7 - 11 12 - 8
12 - 16 13 - 7
17 - 21 14 - 6
22 - 27 15 - 5
28 - 33 16 - 4
34 - 39 17 - 3
40 - 46 18 - 2
47 - 54 19 - 1
55 or more 20 - 0

 

In the example, if we were still 13 IMPs ahead having played 24 boards, using this table we would win the match 13-7. If the match was part of some larger competition, such as a league, then we would score 13 victory points and our opponents would score 7.