Opening Lead Double Dummy Accuracy Rate (DDOLAR)

Opening lead double dummy accuracy rate (DDOLAR) statistics

This is the double dummy opening lead accuracy rate (DDOLAR) for players from different types of events. The data was generated by Bridgescore+.

ACBL tournaments (speedballs/regionals). Mid March-mid December, 2020.

2,000 total boards played by partnerships as cut off. Note this is not the number of leads.

Approximately 2,300 pairs, 4,600 players. Top 50 pairs for the Double Dummy Opening Lead Accuracy Rate (DDOLAR).

BBO names are case-insensitive and may contain spaces. For presentation purposes, names have been capitalized and all spaces replaced with an underscore.

Rank	Names	Number of leads	DDOLAR
1	ALLANBW - ZINGERZ19	1,046	88.91%
2	Names removed	1,346	88.11%
3	Names removed	1,233	88.08%
4	Names removed	1,033	87.90%
5	Names removed	1,294	87.48%
6	Names removed	2,146	87.33%
7	Names removed	2,630	87.03%
8	Names removed	1,597	87.04%
9	Names removed	2,370	86.84%
10	Names removed	1,267	86.82%
11	Names removed	1,696	86.73%
12	Names removed	1,077	86.63%
13	Names removed	1,301	86.55%
14	Names removed	1,281	86.49%
15	Names removed	2,049	86.38%
16	Names removed	1,182	86.13%
17	Names removed	2,520	86.11%
18	Names removed	3,030	86.11%
19	Names removed	1,231	86.11%
20	Names removed	2,186	86.09%
21	Names removed	1,174	86.03%
22	LN - RKK	1,113	85.89%
23	Names removed	1,406	85.78%
24	Names removed	3,784	85.76%
25	Names removed	2,379	85.71%
26	MAXTALENT1 - NONS56	1,371	85.70%
27	Names removed	1,704	85.68%
28	Names removed	6,619	85.65%
29	Names removed	2,923	85.63%
30	Names removed	1,035	85.60%
31	Names removed	1,103	85.49%
32	Names removed	1,539	85.38%
33	Names removed	2,471	85.35%
34	Names removed	4,239	85.33%
35	Names removed	2,083	85.26%
36	Names removed	1,038	85.26%
37	Names removed	1,045	85.26%
38	Names removed	3,302	85.16%
39	Names removed	1,220	85.16%
40	Names removed	1,212	85.15%
41	SAMZEINE - ZAK10	1,307	85.08%
42	Names removed	1,531	85.04%
43	Names removed	1,890	85.03%
44	Names removed	1,340	85.00%
45	Names removed	1,204	84.97%
46	Names removed	1,255	84.94%
47	Names removed	1,130	84.87%
48	Names removed>	1,369	84.81%
49	Names removed	1,914	84.80%
50	Names removed	2,032	84.74%

Pairs in red have one or more players that have been suspended by ACBL.

Virtual ACBL clubs. Mid March-mid December, 2020.

2,000 total boards played by partnerships as cut off. Note this is not the number of leads.

Approximately 550 pairs, 1,110 players. Top 10 pairs for the Double Dummy Opening Lead Accuracy Rate (DDOLAR).

BBO names are case-insensitive and may contain spaces. For presentation purposes, names have been capitalized and all spaces replaced with an underscore.

Rank	Names	Number of leads	DDOLAR
1	DGORDON123 - ROZGORDON	1,195	86.11%
2	HERSHEY5 - TBABBITT	922	85.79%
3	BCEXPLORER - TTIVAL	955	85.55%
4	DONNAPAR - GCARAVELLI	1,261	85.09%
5	CDRIELY - TRIELY	1,115	85.02%
6	ALJOS1 - BLJ41	1,350	84.81%
7	BILLJENSEN - DONNA1710	777	84.81%
8	ADWILLIAMS - SPWILLIAMS	782	84.78%
9	GULLI1958 - IMAREADER	1,008	84.33%
10	JANHENRY72 - RJWHENRY	854	84.07%

Top level face-to-face (FTF) tournaments, 1955-2020.

1,000 total boards played by partnerships as cut off. Note this is not the number of leads.

Approximately 33 pairs, 66 players for Double Dummy Opening Lead Accuracy Rate (DDOLAR).

Rank	Names	Number of leads	DDOLAR
1	Jean-Christophe Quantin - Marc Bompis	564	85.82%
2	Jacek Pzszcola - Michal Kwiecien	546	84.43%
3	Alexander Smirnov - Josef Piekarek	1,282	84.01%
4	Boguslaw Gierulski - Jerzy Skrzypczak	634	83.91%
5	Chip Martel - Marty Fleisher	960	83.65%
6	Boye Brogeland - Erik Saelensminde	636	83.65%
7	Hemant Lall - Reese Milner	585	83.42%
8	Geir Helgemo - Tor Helness	3,087	82.83%
9	Agustin Madala - Norberto Bocchi	1,660	82.83%
10	Giorgio Duboin - Norberto Bocchi	2,004	82.78%
11	Entscho Wladow - Michael Elinescu	780	82.56%
12	Michal Klukowski - Piotr Gawrys	1,432	82.54%
13	Cedric Lorenzini - Jean-Christophe Quantin	615	82.44%
14	Bobby Wolff - Bob Hamman	544	82.35%
15	Lotan Fisher - Ron Schwartz	683	82.14%
16	Frank Multon - Pierre Zimmermann	1,416	82.06%
17	Eddy Manoppo - Henky Lasut	642	81.93%
18	Gavin Wolpert - John Kranyak	526	81.94%
19	Joel Wooldridge - John Hurd	1,479	81.74%
20	Heather Dhondy - Nevena Senior	732	81.69%
21	Alon Birman - Dror Padon	761	81.60%
22	Howie Weinstein - Steve Garner	912	81.58%
23	Marc Jacobus - Mike Passell	648	81.48%
24	Tarek Sadek - Waleed El-Ahmady	567	81.48%
25	Alexander Dubinin - Andrey Gromov	1,508	81.43%
26	Justin Lall - Kevin Bathurst	969	81.42%
27	Andrew Robson - Tony Forrester	718	81.34%
28	Eric Rodwell - Jeff Meckstroth	4,726	81.32%
29	Chris Willenken - Eldad Ginossar	535	81.31%
30	Bas Drijver - Sjoert Brink	2,580	81.28%
31	Diyan Danailov - Jerry Stamatov	710	81.27%
32	Bart Nab - Bob Drijver	667	81.26%
33	Alexander Allfrey - Andrew Robson	436	81.19%
34	Chip Martel - Lew Stansby	1,290	81.16%
35	Alan Sontag - David Berkowitz	987	81.16%
36	Jon Baldursson - Thorlakur Jonsson	504	81.15%
37	Claudio Nunes - Fulvio Fantoni	3,194	81.09%
38	Huub Bertens - Ton Bakkeren	698	81.09%
39	David Berkowitz - Larry Cohen	776	81.06%
40	Fredrik Nystrom - Johan Upmark	1,572	81.04%
41	Benedicte Cronier - Sylvie Willard	955	81.05%
42	Alfredo Versace - Lorenzo Lauria	4,105	81.02%
43	Grzegorz Narkiewicz - Krzysztof Buras	1,189	80.99%
44	John Schermer - Neil Chambers	1,317	80.94%
45	Peter Boyd - Steve Robinson	1,084	80.90%
46	Bobby Levin - Steve Weinstein	2,848	80.90%
47	Adam Zmudzinski - Cezary Balicki	2,035	80.84%
48	Marty Fleisher - Mike Kamil	672	80.80%
49	Louk Verhees - Ricco Van Prooijen	1,558	80.68%
50	Dick Freeman - Nick Nickell	999	80.68%
51	Bauke Muller - Simon De Wijs	2,443	80.56%
52	Bart Bramley - Lew Stansby	555	80.54%
53	Bob Hamman - Zia Mahmood	860	80.47%
54	Roy Welland - Sabine Auken	969	80.39%
55	Antonio Sementa - Giorgio Duboin	1,639	80.35%
56	Beth Palmer - Lynn Deas	569	80.32%
57	Bob Hamman - Paul Soloway	810	80.12%
58	Boye Brogeland - Espen Lindqvist	1,400	80.00%
59	Michael Rosenberg - Zia Mahmood	1,129	79.98%
60	Brian Platnick - John Diamond	1,708	79.92%
61	Chris Willenken - Michael Rosenberg	712	79.92%
62	Nick Nickell - Ralph Katz	1,433	79.83%
63	Jouri Khiouppenen - Vadim Kholomeev	580	79.83%
64	Apolinary Kowalski - Jacek Romanski	579	79.79%
65	Eric Greco - Geoff Hampson	2,456	79.72%
66	Dennis Bilde - Giorgio Duboin	666	79.73%
67	Brad Moss - Fred Gitelman	1,143	79.70%
68	Sabine Auken - Daniela Von Arnim	531	79.66%
69	David Bakhshi - David Gold	741	79.62%
70	Antonio Sementa - Norberto Bocchi	775	79.61%
71	Bjorn Fallenius - Peter Fredin	662	79.61%
72	Jacek Kalita - Michal Nowosadzki	1,488	79.50%
73	Fredrik Nystrom - Peter Bertheau	756	79.50%
74	Frederic Volcker - Thomas Bessis	814	79.48%
75	Michel Bessis - Thomas Bessis	463	79.48%
76	Alain Levy - Herve Mouiel	548	79.38%
77	Magnus Lindkvist - Peter Fredin	464	79.31%
78	Fred Stewart - Kit Woolsey	998	79.26%
79	Brad Moss - Joe Grue	1,175	79.23%
80	John Carroll - Tommy Garvey	778	79.18%
81	Frederic Wrang - Johan Sylvan	706	79.18%
82	Jason Hackett - Justin Hackett	838	78.88%
83	David Gold - Tom Townsend	652	78.83%
84	Nicola Smith - Sally Brock	569	78.73%
85	John Kranyak - Vince Demuy	899	78.64%
86	Hugh Mcgann - Tom Hanlon	902	78.16%
87	Agustin Madala - Alejandro Bianchedi	516	77.91%
88	Ilan Herbst - Ophir Herbst	507	77.51%

BBO ACBL Games - partnerships - 4,000+ leads - through December 31, 2020

The cut-off is 4,000 leads. There are 41 pairs. There are 7 pairs above 82%.

BBO ACBL Games - partnerships - 5,000 total boards cut off through November 30, 2020

The cut-off is 5,000 total boards played (i.e. about 2,500 on lead). There are 178 pairs. There are 21 pairs above 82%. 8 of the top 21 pairs were in the Bridgewinners anonymized data experiment and BW volunteers determined they were cheating. Two of the 21 pairs are known to be married couples.

The following data is up through September 2020. The cut-off is 1,000 total boards played (i.e. about 500 on lead). Data is shown for partnerships, and for individual players.