Richmond Bridge - Game Results
22 June 2013
- For this game, we played a 3-table Mitchell movement for six pairs over nine boards.
Summary
N-S Pairs
|
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Rank | Match Points | Pct | Pair
|
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1 | 11.5 | 63.9 | 3:David/Deborah
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2 | 10.5 | 58.3 | 1:Janet/Richard
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3 | 5.0 | 27.8 | 2:Chad/Laura
|
E-W Pairs
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Rank | Match Points | Pct | Pair
|
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1 | 12.5 | 69.4 | 1:Georgia/Norm
|
2 | 9.0 | 50.0 | 3:Kathy/Sheri
|
3 | 5.5 | 30.6 | 2:Ellis/Philip
|
Matchpoints
| N-S Pairs
|
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Board | 1 | 2 | 3
|
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1 | 0.0 | 1.0 | 2.0
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2 | 0.0 | 1.0 | 2.0
|
3 | 1.5 | 0.0 | 1.5
|
4 | 1.0 | 0.0 | 2.0
|
5 | 1.0 | 2.0 | 0.0
|
6 | 2.0 | 0.0 | 1.0
|
7 | 2.0 | 1.0 | 0.0
|
8 | 1.0 | 0.0 | 2.0
|
9 | 2.0 | 0.0 | 1.0
|
Total: | 10.5 | 5.0 | 11.5
|
| E-W Pairs
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Board | 1 | 2 | 3
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1 | 2.0 | 0.0 | 1.0
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2 | 2.0 | 0.0 | 1.0
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3 | 0.5 | 0.5 | 2.0
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4 | 0.0 | 2.0 | 1.0
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5 | 2.0 | 0.0 | 1.0
|
6 | 1.0 | 2.0 | 0.0
|
7 | 1.0 | 0.0 | 2.0
|
8 | 2.0 | 1.0 | 0.0
|
9 | 2.0 | 0.0 | 1.0
|
Total: | 12.5 | 5.5 | 9.0
|
Board 1
Dealer: N, Vuln: None
Contract | By | Made | Down | North South | Matchpoints | Pairs
|
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| | | | Net plus | Net minus | N-S | E-W | N-S | E-W
|
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4♥ | E | 5 | | | 450 | 0.0 | 2.0 | 1:Janet/Richard | 1:Georgia/Norm
|
2NT | E | 3 | | | 150 | 1.0 | 1.0 | 2:Chad/Laura | 3:Kathy/Sheri
|
2NT | E | | 2 | 100 | | 2.0 | 0.0 | 3:David/Deborah | 2:Ellis/Philip
|
Board 2
Dealer: E, Vuln: N-S
Contract | By | Made | Down | North South | Matchpoints | Pairs
|
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| | | | Net plus | Net minus | N-S | E-W | N-S | E-W
|
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4♠ | W | 4 | | | 420 | 0.0 | 2.0 | 1:Janet/Richard | 1:Georgia/Norm
|
2♠ | W | 4 | | | 170 | 1.0 | 1.0 | 2:Chad/Laura | 3:Kathy/Sheri
|
1♥ | S | 2 | | 110 | | 2.0 | 0.0 | 3:David/Deborah | 2:Ellis/Philip
|
Board 3
Dealer: S, Vuln: E-W
Contract | By | Made | Down | North South | Matchpoints | Pairs
|
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| | | | Net plus | Net minus | N-S | E-W | N-S | E-W
|
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5♣ | S | 5 | | 400 | | 1.5 | 0.5 | 1:Janet/Richard | 1:Georgia/Norm
|
2♥ | W | 1 | | 100 | | 0.0 | 2.0 | 2:Chad/Laura | 3:Kathy/Sheri
|
4♥x | W | | 2 | 400 | | 1.5 | 0.5 | 3:David/Deborah | 2:Ellis/Philip
|
Board 4
Dealer: W, Vuln: Both
Contract | By | Made | Down | North South | Matchpoints | Pairs
|
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| | | | Net plus | Net minus | N-S | E-W | N-S | E-W
|
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3♠ | W | | 1 | 100 | | 1.0 | 1.0 | 1:Janet/Richard | 3:Kathy/Sheri
|
2♠ | W | 2 | | | 110 | 0.0 | 2.0 | 2:Chad/Laura | 2:Ellis/Philip
|
3♠ | W | | 2 | 200 | | 2.0 | 0.0 | 3:David/Deborah | 1:Georgia/Norm
|
Board 5
Dealer: N, Vuln: N-S
Contract | By | Made | Down | North South | Matchpoints | Pairs
|
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| | | | Net plus | Net minus | N-S | E-W | N-S | E-W
|
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1NT | S | 3 | | 150 | | 1.0 | 1.0 | 1:Janet/Richard | 3:Kathy/Sheri
|
3NT | N | 4 | | 630 | | 2.0 | 0.0 | 2:Chad/Laura | 2:Ellis/Philip
|
1NT | N | | 1 | | 100 | 0.0 | 2.0 | 3:David/Deborah | 1:Georgia/Norm
|
Board 6
Dealer: E, Vuln: E-W
Contract | By | Made | Down | North South | Matchpoints | Pairs
|
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| | | | Net plus | Net minus | N-S | E-W | N-S | E-W
|
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3♦ | E | 3 | | | 110 | 2.0 | 0.0 | 1:Janet/Richard | 3:Kathy/Sheri
|
2♥x | S | | 2 | | 300 | 0.0 | 2.0 | 2:Chad/Laura | 2:Ellis/Philip
|
2NT | W | 2 | | | 120 | 1.0 | 1.0 | 3:David/Deborah | 1:Georgia/Norm
|
Board 7
Dealer: S, Vuln: Both
Contract | By | Made | Down | North South | Matchpoints | Pairs
|
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| | | | Net plus | Net minus | N-S | E-W | N-S | E-W
|
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4♠ | N | 5 | | 650 | | 2.0 | 0.0 | 1:Janet/Richard | 2:Ellis/Philip
|
2♠ | N | 7 | | 260 | | 1.0 | 1.0 | 2:Chad/Laura | 1:Georgia/Norm
|
2♠ | N | 5 | | 200 | | 0.0 | 2.0 | 3:David/Deborah | 3:Kathy/Sheri
|
Board 8
Dealer: W, Vuln: None
Contract | By | Made | Down | North South | Matchpoints | Pairs
|
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| | | | Net plus | Net minus | N-S | E-W | N-S | E-W
|
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4♥ | S | | 3 | | 150 | 1.0 | 1.0 | 1:Janet/Richard | 2:Ellis/Philip
|
3♠xx | E | 3 | | | 760 | 0.0 | 2.0 | 2:Chad/Laura | 1:Georgia/Norm
|
2♠ | E | 3 | | | 140 | 2.0 | 0.0 | 3:David/Deborah | 3:Kathy/Sheri
|
Board 9
Dealer: N, Vuln: E-W
Contract | By | Made | Down | North South | Matchpoints | Pairs
|
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| | | | Net plus | Net minus | N-S | E-W | N-S | E-W
|
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6♠ | W | | 2 | 200 | | 2.0 | 0.0 | 1:Janet/Richard | 2:Ellis/Philip
|
5♦ | E | 5 | | | 400 | 0.0 | 2.0 | 2:Chad/Laura | 1:Georgia/Norm
|
2NT | W | 2 | | | 120 | 1.0 | 1.0 | 3:David/Deborah | 3:Kathy/Sheri
|
Matchpoint scoring for Mitchell Pairs
At this game we used Mitchell movement: The North-South pairs remained stationary
and, after each round, the East-West pairs moved to the next higher-numbered table
and the boards moved to the next lower-numbered table. We played nine boards in
three rounds and each East-West pair had an opportunity to play against each
North-South pair.
When Mitchell movement is used, there are two winning pairs: one from the North-South
group and one from the East-West group. Because the boards may be unbalanced, the
North-South scores are only compared with each other, not against East-West.
In matchpoint scoring, on each board, a pair gets one matchpoint for each other pair
that scored fewer points with the same cards and ½ matchpoint for each other pair that
scored the same number of points.
At this game, each board was played at three tables. If, on a given board,
there are different scores at each table, the N-S pair with the highest score
receives two matchpoints, the N-S pair with the lowest score receives zero
matchpoints, and the N-S pair with the middle score receives one.
The matchpoints for E-W pairs are calculated in the same way: the highest-scoring
E-W pair receives two matchpoints, the lowest-scoring E-W pair receives zero
matchpoints, and the middle-scoring E-W pair receives one.
If there is a tie, the matchpoints are split. For example, on Board 3, the same
score was obtained at two tables. The two N-S pairs, who tied for the high score,
each received 1.5 matchpoints. The two E-W pairs, who tied for the low score
(among E-W pairs) each received 0.5 matchpoints.
If there had been a board on which the same score was obtained at all three
tables, each pair (both N-S and E-W) would have received 1 matchpoint.
The percentage score is calculated by dividing the total number of matchpoints
that each pair received by the maximum number of matchpoints that they could
have received. In this case, everyone played 9 boards. The maximum number
of matchpoints that any pair could get on each board is 2, so the number of
matchpoints available is 18. If there had been a pair that played eight
boards--as almost happened--their matchpoints would have been divided by 16
to get a percentage score.
In a sanctioned game where masterpoints are awarded, the percentage scores
would be used to determine the ranking and the highest-ranked pairs from
each group would receive masterpoints.