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Statistics of 130000 bridge boards

Contracts by score

In table 1 and image 1 you can see an overview of contracts by score.

table 1TotalPerc
Pas3910.30%
Partscores4865437.12%
Manches7236755.21%
Small slam84546.45%
Grand slam12160.93%
Total131082100.01%
Doubled97247.42%
Redoubled1220.09%

Graphical display contract type by numbers



Contracts by type

Table 2 is an overview of contracts by type, image 2 shows the frequency by suit in percentage, image 3 shows the frequency of all contracts.

table 21234567Total
Clubs720.05%15031.15%37142.83%12400.95%32832.50%16511.26%2330.18%116968.92%
Diamonds1410.11%24371.86%41513.17%11120.85%35362.70%15821.21%2100.16%1316910.05%
Hearts3770.29%55634.24%45213.45%1692612.91%17811.36%21591.65%3300.25%3165724.15%
Spades8060.61%79346.05%47113.59%1960814.96%13151.00%22471.71%2600.20%3688128.14%
Notrump80046.11%23681.81%2537719.36%5020.38%390.03%8150.62%1830.14%3728828.45%
Pass3910.30%
Total94007.17%1980515.11%4247432.40%3938830.05%99547.59%84546.45%12160.93% 131082100.01%

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Contracts results

Table 3 shows the results of all contracts, table 4 shows the results per contract.

Results all deals 1TotalPerc.
Overtricks4101331.53%
Exact4171532.07%
Down4735636.40%
Total130084100.00%

ContractMade 1PercDownPerc
1NT527666.16%269933.84%
2NT134556.99%101543.01%
3NT1755469.50%770430.50%
4H1137367.53%546932.47%
4S1277265.47%673634.53%
5c148662.44%89437.56%
5d157161.10%157138.90%
6x All small slam550265.38%291334.62%
7x All grand slam80566.26%41033.74%
1. the result ( = number of tricks made) was not always recorded hence the difference with the first 2 tables

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2NT results

As 2NT contracts went down 7% more than was expected I tried to investigate.
Table 5 shows the difference between 2NT arrived after several bids and a 2NT opening that was passed out.
Image 4 shows the average number of tricks.

table 5TricksFrequencyAverage tricks
2NT opening bid11861697.02
2NT bid not opened with 2NT1649021787.57
All 2NT1767623477.50
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Table 6 shows the results for the 2NT bids
Image 5 shows the results of 2NT compared with all contracts.

Table 6perc. madeperc. down
2NT opening bid40.2459.76
2NT bid not opened with 2NT56.8843.12


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Image 6 shows how 1NT contract are made more often

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Results for suit partscores

Image 7 shows details on suit partscores

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Results for all contracts.

Image 8 shows details on all contracts. For partscores you can see the percentage missed manches, for manches the percentage missed small slems, and for small slem the percentage missed grand slems

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Tricks made

Image 9 shows number of tricks in percentages (all deals).

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Conclusions


Pages served 9091183
Last update database: Saturday 23rd of July 2016 at 10:13:24
216,226 deals in the database