Stats 9Y37   Main

Contract Stats

by Richard Pavlicek

The following tables show a breakdown of contracts and related information from vugraph archives of the Vanderbilt, Spingold, U.S. Bridge Championship and World Team Championship from 1996 to present. Source data consists of 80,138 results (40,069 deals) from 72 events.

Contract	Times	Percent	Cumulative
1	45	0.06	45	0.06
1	72	0.09	117	0.15
1	230	0.29	347	0.43
1	504	0.63	851	1.06
1 NT	4935	6.16	5786	7.22
2	847	1.06	6633	8.28
2	1385	1.73	8018	10.01
2	3297	4.11	11315	14.12
2	4785	5.97	16100	20.09
2 NT	1457	1.82	17557	21.91
3	2303	2.87	19860	24.78
3	2563	3.20	22423	27.98
3	2704	3.37	25127	31.35
3	2889	3.61	28016	34.96
3 NT	15385	19.20	43401	54.16
4	782	0.98	44183	55.13
4	702	0.88	44885	56.01
4	10406	12.99	55291	68.99
4	12086	15.08	67377	84.08
4 NT	336	0.42	67713	84.50
5	2110	2.63	69823	87.13
5	2124	2.65	71947	89.78
5	1183	1.48	73130	91.26
5	848	1.06	73978	92.31
5 NT	17	0.02	73995	92.33
6	956	1.19	74951	93.53
6	944	1.18	75895	94.71
6	1371	1.71	77266	96.42
6	1419	1.77	78685	98.19
6 NT	462	0.58	79147	98.76
7	125	0.16	79272	98.92
7	165	0.21	79437	99.13
7	210	0.26	79647	99.39
7	198	0.25	79845	99.63
7 NT	97	0.12	79942	99.76
Passout	196	0.24	80138	100.00

Level	Times	Percent	Cumulative
One	5786	7.22	5786	7.22
Two	11771	14.69	17557	21.91
Three	25844	32.25	43401	54.16
Four	24312	30.34	67713	84.50
Five	6282	7.84	73995	92.33
Six	5152	6.43	79147	98.76
Seven	795	0.99	79942	99.76

Strain	Times	Percent	Cumulative
Clubs	7168	8.94	7168	8.94
Diamonds	7955	9.93	15123	18.87
Hearts	19401	24.21	34524	43.08
Spades	22729	28.36	57253	71.44
Notrump	22689	28.31	79942	99.76

Genre	Times	Percent	Cumulative
Partscore	29500	36.81	29500	36.81
Game not slam	44495	55.52	73995	92.33
Small slam	5152	6.43	79147	98.76
Grand slam	795	0.99	79942	99.76

Jeopardy	Times	Percent	Cumulative
Plain	73919	92.24	73919	92.24
Doubled	5938	7.41	79857	99.65
Redoubled	85	0.11	79942	99.76

Result	Times	Percent	Cumulative
Made plain	50173	62.61	50173	62.61
Made doubled	1238	1.54	51411	64.15
Made redoubled	38	0.05	51449	64.20
Down plain	23746	29.63	75195	93.83
Down doubled	4700	5.86	79895	99.70
Down redoubled	47	0.06	79942	99.76

Net Result	Times	Percent	Cumulative
Down 9	3	0.00	3	0.00
Down 8	5	0.01	8	0.01
Down 7	16	0.02	24	0.03
Down 6	53	0.07	77	0.10
Down 5	218	0.27	295	0.37
Down 4	758	0.95	1053	1.31
Down 3	2854	3.56	3907	4.88
Down 2	8256	10.30	12163	15.18
Down 1	16330	20.38	28493	35.55
Made exact	26276	32.79	54769	68.34
Plus 1	16368	20.42	71137	88.77
Plus 2	6850	8.55	77987	97.32
Plus 3	1728	2.16	79715	99.47
Plus 4	222	0.28	79937	99.75
Plus 5	4	0.00	79941	99.75
Plus 6	1	0.00	79942	99.76

Tricks Won	Times	Percent	Cumulative
0	2	0.00	2	0.00
1	4	0.00	6	0.01
2	14	0.02	20	0.02
3	121	0.15	141	0.18
4	412	0.51	553	0.69
5	1289	1.61	1842	2.30
6	3427	4.28	5269	6.57
7	7394	9.23	12663	15.80
8	12736	15.89	25399	31.69
9	17268	21.55	42667	53.24
10	16698	20.84	59365	74.08
11	12030	15.01	71395	89.09
12	6739	8.41	78134	97.50
13	1808	2.26	79942	99.76

Declarer	Times	Percent	Cumulative
North	20332	25.37	20332	25.37
East	20019	24.98	40351	50.35
South	19814	24.72	60165	75.08
West	19777	24.68	79942	99.76

Dealer	Times	Percent	Cumulative
North	20106	25.09	20106	25.09
East	20098	25.08	40204	50.17
South	19984	24.94	60188	75.11
West	19950	24.89	80138	100.00

Vulnerability	Times	Percent	Cumulative
None	19992	24.95	19992	24.95
N-S	19972	24.92	39964	49.87
E-W	20046	25.01	60010	74.88
Both	20128	25.12	80138	100.00

Relative Vul	Times	Percent	Cumulative
None	19992	24.95	19992	24.95
Non-dealer*	20514	25.60	40506	50.55
Dealer*	19504	24.34	60010	74.88
Both	20128	25.12	80138	100.00

*Significant imbalance is caused by unfair conditions in the U.S. Bridge Championship,
where 15-board segments corrupt the normal cycle.

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© 2014 Richard Pavlicek