Apr 2023

Ladder for 1 Apr 2023 to 30 Apr 2023

Online statistics for 1 Apr 2023 to 30 Apr 2023

We have calculated various ladders for online play on RealBridge sessions hosted by the Auckland Bridge Club for the period 1 Apr 2023 to 30 Apr 2023. You needed to have played a certain number of times to be listed in the ladder. There are more details at the end about how the calculation is performed, and what is included. This is still an experimental feature. It will continue to evolve. Please let us know (realbridge@akbc.co.nz) if you spot any problems or have any suggestions.

Open Ladder
Rank		Name	Number	Club	Played	Average¹
1	A♠	Patrick Carter	3775	Auckland	6	58.44%
2	A♥	Pamela Marsland	26367	Akarana	7	58.37%
3	A♦	John Buckleton	25761	Auckland	18	57.90%
4	A♣	Marilyn Jackson	61101	Invercargill	5	57.58%
5	K♠	Jillian Ramsey	10632	Havelock North	9	57.57%
6	K♥	Mike Dunn	5733	Auckland	7	56.76%
7	K♦	Christine Wilson	31091	North Shore	8	56.65%
8	K♣	Cynthia Clayton	13263	Hamilton	8	56.62%
9	Q♠	Robyn Freeman-Greene	6603	Victoria	11	56.61%
9	Q♠	Dale Lacey	16928	Wellington	11	56.61%
11	Q♦	Douglas Russell	15492	Auckland	11	56.18%
12	Q♣	Ian Clayton	4161	Hamilton	7	56.06%
13	J♠	John Driscoll	33587	Taupo	11	55.65%
13	J♠	Rona Driscoll	19976	Taupo	11	55.65%
15	J♦	Cheryl Winsor	10588	Howick	8	55.28%
16	J♣	Md Faisal Alam	26807	Howick	8	55.02%
17		Dianne Evans	74554	Winton	8	54.84%
18		Trudy Lange	10107	Auckland	12	54.58%
19		Nicky Bowers	25766	Auckland	11	54.36%
20		Bev Penny	33324	Hastings	6	54.31%
21		Jo Clark	4097	Auckland	5	54.14%
22		Ian Beattie	32124	Christchurch	11	53.92%
23		Joy Watkinson	5143	Auckland	7	53.75%
24		Janet Barnard	1997	Auckland	5	53.73%
25		Cathy Carroll	31068	Waiheke	22	53.67%
26		Russell Watt	17820	Auckland	11	53.63%
27		Rachael Goffin	20151	Auckland	8	53.52%
28		Terry Cain	19882	Christchurch	7	53.34%
29		Arch Jelley	18787	Mt Albert	7	53.16%
30		Chris Curreen	37962	Waiheke	6	53.09%
31		Leslie Watt	56607	Auckland	10	52.84%
32		Chris Fleming	30408	Auckland	20	52.74%
33		Rosa Mishkin	9309	Kairangi	9	52.68%
34		Anne Gelb	7057	Auckland	11	52.54%
35		Ash Hamilton	84000	Westport	5	52.27%
36		Lorraine Inglis	9054	Kapi Mana	5	52.25%
37		Judith Chandler	9758	Auckland	5	52.21%
38		Elizabeth Grieve	7446	Auckland	7	52.12%
39		Bruce Inglis	5111	Mt Maunganui	5	51.43%
40		Jill Patterson	31186	Waiheke	9	51.35%
41		Fiona Moon	30514	Auckland	16	51.34%
42		Allan Joseph	20589	Kairangi	5	51.30%
43		Trish Young	37598	Auckland	9	51.20%
44		Rhonda Graham	41725	North Shore	9	51.20%
45		Valerie Gardiner	29595	Akarana	9	50.90%
46		Anthony Wilson	31057	Auckland	6	50.79%
47		Daisy Lu	51209	Mt Albert	5	50.75%
48		Carol Minchin	12176	Nelson	6	50.72%
49		Heather Robertson	42382	Auckland	6	50.68%
50		Takayo Yanagisawa	36064	Auckland	12	50.65%
51		Sara Worth	3548	None	10	50.63%
52		Pauline Andrews	1608	Auckland	6	50.63%
53		Thelma Burd	32380	Hamilton	8	50.61%

Intermediate/Junior Ladder
Rank		Name	Number	Club	Played	Average¹
1	A♠	Jillian Ramsey	10632	Havelock North	9	57.57%
2	A♥	Bev Penny	33324	Hastings	6	54.31%
3	A♦	Ian Beattie	32124	Christchurch	11	53.92%
4	A♣	Cathy Carroll	31068	Waiheke	22	53.67%
5	K♠	Terry Cain	19882	Christchurch	7	53.34%
6	K♥	Arch Jelley	18787	Mt Albert	7	53.16%
7	K♦	Chris Curreen	37962	Waiheke	6	53.09%
8	K♣	Chris Fleming	30408	Auckland	20	52.74%
9	Q♠	Ash Hamilton	84000	Westport	5	52.27%
10	Q♥	Jill Patterson	31186	Waiheke	9	51.35%
11	Q♦	Fiona Moon	30514	Auckland	16	51.34%
12	Q♣	Trish Young	37598	Auckland	9	51.20%
13	J♠	Daisy Lu	51209	Mt Albert	5	50.75%
14	J♥	Heather Robertson	42382	Auckland	6	50.68%
15	J♦	Takayo Yanagisawa	36064	Auckland	12	50.65%
16	J♣	Sara Worth	3548	None	10	50.63%
17		Thelma Burd	32380	Hamilton	8	50.61%
18		Paul Trotman	17129	Royle Epsom	5	49.80%
18		Philippa Cunningham	21835	Auckland	5	49.80%
20		Jessica Morris	37607	Auckland	5	49.49%
21		Gayle Cullwick	4885	Victoria	5	49.46%
22		Thomas Freeman-Greene	51590	Auckland	7	48.60%
23		Neil Horsfield	51562	Auckland	5	48.55%
23		Helen Smith	51563	Auckland	5	48.55%
25		Beth Henderson	38982	Hibiscus Coast	6	48.50%
25		Jo McKeown	44104	Auckland	6	48.50%
27		Robyn Chalmers	15778	Auckland	5	48.09%
28		Duncan White	18466	Hamilton	6	48.06%
29		Bronwyn MacKenzie	39080	Auckland	5	47.89%
30		Liz Ware	20198	Auckland	9	47.79%

Junior Ladder
Rank		Name	Number	Club	Played	Average¹
1	A♠	Daisy Lu	51209	Mt Albert	5	50.75%
2	A♥	Sara Worth	3548	None	10	50.63%
3	A♦	Thomas Freeman-Greene	51590	Auckland	7	48.60%
4	A♣	Neil Horsfield	51562	Auckland	5	48.55%
4	A♣	Helen Smith	51563	Auckland	5	48.55%
6	K♥	Beth Henderson	38982	Hibiscus Coast	6	48.50%
6	K♥	Jo McKeown	44104	Auckland	6	48.50%
8	K♣	Bronwyn MacKenzie	39080	Auckland	5	47.89%
9	Q♠	Jennifer Beecroft	50796	Waiheke	5	47.31%
9	Q♠	Christina Hyde	52449	Waiheke	5	47.31%
11	Q♦	Paula McTaggart	52641	Auckland	13	46.11%
12	Q♣	Bryan Travers	46325	Howick	5	45.10%

Statistics for all boards:

Percentage when declarer: (11047)

51.16%

... percentage that made: (7192 of 11047)

65.10%

... when Opener holds at least 16 hcp: (2780)

50.74%

... when opened but most didn't: (362)

51.15%

... when Opener preempted: (1423)

52.32%

... was preempted when most didn't: (534)

54.12%

... when Declarer is distributional³: (1451 hands)

51.99%

... when in a unique contract: (2297)

44.91%

Percentage score when on opening lead: (11082)

48.84%

... when leading from a sequence⁴: (1620)

48.32%

... when leading trumps⁴: (323)

49.94%

... when trumps was the only right lead⁴: (9/96)

... when leading a singleton⁴: (692)

52.08%

... when leading a doubleton⁴: (466)

49.52%

... when leading passively⁴: (2528)

49.84%

... when leading actively⁴: (5415)

47.98%

Highest HCP:	♠ KJ10 ♥ AQ6 ♦ AKQ ♣ AK97 [link] ♠ AKQ1086 ♥ AKQJ ♦ A ♣ QJ [link] (26 hcp)
Freakiest Hand:	♠ - ♥ - ♦ AKJ9852 ♣ J109752 [link] (6.5)

Beer cards won: (31)

Who was dealt the MOST high card points on average?
Rank		Name	Hands	Average HCP
1	A♠	Alan Currie	113	11.16
2	A♥	Bruce Cousins	158	10.78
3	A♦	Ash Hamilton	137	10.74
4	A♣	Patrick Carter	150	10.63
5	K♠	Judith Chandler	134	10.58
6	K♥	Jennifer Perkins	157	10.54
7	K♦	Marie Ewbank	128	10.50
8	K♣	Trish Murphy	155	10.49
9	Q♠	Peter Green	123	10.46
10	Q♥	Sylvester Riddell	131	10.46
11	Q♦	Gwyn Lobb	110	10.43
12	Q♣	Susan Steedman	107	10.42
13	J♠	Les Gould	139	10.41
14	J♥	Takayo Yanagisawa	318	10.38
15	J♦	Anne Gelb	308	10.38
16	J♣	Dianne Benvie	133	10.36

Who was dealt the LEAST high card points on average?
Rank		Name	Hands	Average HCP
1	A♠	Peter Mclean	105	9.44
2	A♥	Philippa Cunningham	125	9.46
3	A♦	Kerri McCrae	137	9.47
4	A♣	Sally Shentova	110	9.51
5	K♠	Cynthia Clayton	192	9.51
6	K♥	Jo Clark	123	9.53
7	K♦	Dianne Evans	244	9.57
8	K♣	Heather Robertson	181	9.57
9	Q♠	Leah Andrews	127	9.57
10	Q♥	Anne Sim	112	9.60
11	Q♦	Neil Horsfield	196	9.60
12	Q♣	Susan Wedde	139	9.60
13	J♠	Carol Minchin	158	9.61
14	J♥	Stuart & Anne Grant	110	9.65
15	J♦	Ian Beattie	281	9.65
16	J♣	Lee Moselen	140	9.66

Who was declares most frequently?
Rank		Name	Total Hands	Percent as Declarer
1	A♠	Duncan White	157	42.68%
2	A♥	William Leach	139	38.13%
3	A♦	Russell Watt	280	34.29%
4	A♣	Brenda Campbell	106	33.96%
5	K♠	Alan Dormer	127	33.86%
6	K♥	Sita Monaghan	111	33.33%
7	K♦	Mike Dunn	189	33.33%
8	K♣	Dave Almond	133	33.08%
9	Q♠	Fiona Moon	478	32.85%
10	Q♥	Judith Chandler	134	32.84%
11	Q♦	Carol Joseph	100	32.00%
12	Q♣	Wayne King	136	31.62%
13	J♠	Sylvester Riddell	131	31.30%
14	J♥	Rachael Goffin	208	31.25%
15	J♦	Alan Currie	113	30.97%
16	J♣	Anita Thirtle	161	30.43%

Frequency Declarer Is Making
This table is not just about play - it also relects bidding. There are two good ways to get on this table: (1) by being a great declarer, (2) by being a sound bidder; there are two bad ways to get on this table: (1) by being a chronic underbidder, and (2) by never sacrificing. Regardless of which category you fall into, it is better to be higher than lower in the ranking.
Rank		Name	Making	Total	Percent
1	A♠	Rhonda Graham	44	49	89.80%
2	A♥	Terry Cain	32	38	84.21%
3	A♦	Ian Clayton	26	31	83.87%
4	A♣	Sylvester Riddell	34	41	82.93%
5	K♠	Mary Allison	24	29	82.76%
6	K♥	Kate McFadyen	23	28	82.14%
7	K♦	John Driscoll	46	57	80.70%
8	K♣	Liz Ware	41	51	80.39%
9	Q♠	John Penny	20	25	80.00%
9	Q♠	Alan Currie	28	35	80.00%
11	Q♦	Ash Hamilton	31	40	77.50%
12	Q♣	Rachael Goffin	50	65	76.92%
13	J♠	Lorraine Inglis	38	50	76.00%
14	J♥	Pam Whitehead	22	29	75.86%
15	J♦	Nicky Bowers	46	61	75.41%
16	J♣	Brenda Campbell	27	36	75.00%
17		Trudy Lange	68	91	74.73%
18		Dong Gao Bi	38	51	74.51%
19		Anna Powell	20	27	74.07%
20		John Buckleton	94	127	74.02%
21		Cynthia Clayton	31	42	73.81%
22		Sharon Marryatt	28	38	73.68%
23		Carol Minchin	22	30	73.33%
24		Tony Winters	19	26	73.08%
24		Bev Guilford	19	26	73.08%
26		Jill Patterson	51	70	72.86%
27		Diane Groom	24	33	72.73%
28		Jillian Ramsey	42	58	72.41%
29		Arch Jelley	34	47	72.34%
30		Rona Driscoll	65	90	72.22%
31		Marilyn Jackson	31	43	72.09%
32		Leo Sim	18	25	72.00%
32		Philippa Cunningham	18	25	72.00%
34		Les Gould	23	32	71.88%
35		Patrick Carter	25	35	71.43%
35		Mike Dunn	45	63	71.43%
35		Wayne Smith	25	35	71.43%
38		Jennifer Perkins	24	34	70.59%
39		Judith Chandler	31	44	70.45%
39		Dave Almond	31	44	70.45%
41		Anne Sim	21	30	70.00%
41		Gayle Cullwick	21	30	70.00%
41		Christine Wilson	42	60	70.00%
44		Douglas Russell	51	73	69.86%
45		Felicity Hannay	67	96	69.79%
46		Chris Turner	18	26	69.23%
46		Rosa Mishkin	54	78	69.23%
48		Jimmy Ching	22	32	68.75%
48		Carol Joseph	22	32	68.75%
50		Pamela Marsland	26	38	68.42%

Position		Name	Hands	Average
Double Dummy Declarer Success
This table shows how many tricks a declarer takes compared to double dummy play, given the actual lead. A figure of +1.0 for example would mean that on average the declarer takes one more trick than the double dummy result.
1	A♠	Ian Clayton	31	+0.26
2	A♥	Pamela Marsland	38	+0.24
3	A♦	Pamela Dravitzki	27	+0.22
4	A♣	Mike Dunn	63	+0.21
5	K♠	Patrick Carter	35	+0.17
6	K♥	Robyn Freeman-Greene	74	+0.14
7	K♦	Les Gould	32	+0.13
8	K♣	Md Faisal Alam	43	+0.12
9	Q♠	Kate McFadyen	28	+0.11
10	Q♥	Dong Gao Bi	51	+0.10
11	Q♦	Sylvester Riddell	41	+0.10
12	Q♣	Liz Ware	51	+0.08
13	J♠	Paula Boughey	28	+0.07
14	J♥	Douglas Russell	73	+0.04
15	J♦	Leo Sim	25	+0.04
16	J♣	Nicky Bowers	61	+0.03
17		John Buckleton	127	+0.03
18		Allan Joseph	32	+0.03
19		Alan Currie	35	+0.03
20		Trudy Lange	91	+0.01
21		Arch Jelley	47	+0.00
21		Carol Minchin	30	+0.00
21		Bev Penny	37	+0.00

Position		Name	Hands	Average
Double Dummy Defender Success
This table shows how many tricks you and your partner take in defence compared to double dummy play, given the actual lead. A figure of +1.0 for example would mean that on average the defender takes one more trick than the double dummy result.
1	A♠	Judy Hedwig	30	+1.07
2	A♥	Lachie Shea	35	+0.74
3	A♦	Barbara Fitzgerald	27	+0.74
4	A♣	Philip Zheng	25	+0.60
5	K♠	Tani Blackburn	27	+0.59
6	K♥	Bev Henton	34	+0.59
6	K♥	Sally Synnott	34	+0.59
8	K♣	Bruce Marr	25	+0.56
9	Q♠	Paula Boughey	28	+0.50
9	Q♠	Richard Stuart	42	+0.50
11	Q♦	Virginia Stuart	37	+0.49
11	Q♦	Carolyn Guthrie	37	+0.49
13	J♠	Elaine Rayner	27	+0.48
14	J♥	Hilary Metzger	40	+0.48
15	J♦	Xiao Liu	31	+0.45
16	J♣	Piotr Ratka	27	+0.44
16	J♣	Richard Williams	27	+0.44
18		Bernard Lamusse	34	+0.44
18		Caroline Jones	34	+0.44
20		Sita Monaghan	54	+0.43
21		Carla Salinger	40	+0.43
21		Jimmy Ching	40	+0.43
21		Barbara Daly	40	+0.43
21		Lucie Armstrong	40	+0.43
25		Debbie Cooper	31	+0.42
26		Ray Kingston	51	+0.41
27		Patrick Carter	71	+0.41
28		Md Faisal Alam	111	+0.40
29		Ronald Evans	43	+0.40
30		William Leach	54	+0.39
31		Marilyn Jackson	90	+0.38
32		David Kranz	32	+0.38
33		Lorraine Inglis	119	+0.36
34		Sue Jury	31	+0.35
35		Graham Wakefield	34	+0.35
36		Kerri McCrae	72	+0.35
37		John Driscoll	160	+0.34
38		Carol Joseph	50	+0.34
39		John Buckleton	232	+0.34
40		Carol Minchin	78	+0.33
40		Anthony Abbott	36	+0.33
40		Neil Williams	36	+0.33
43		Eleanor Morel	25	+0.32
44		Bev Penny	73	+0.32
45		Sharon Marryatt	87	+0.31
46		Daisy Lu	72	+0.31
47		Arch Jelley	102	+0.30
48		Chris Turner	66	+0.30
49		Russell Watt	129	+0.30
50		Douglas Russell	149	+0.30

Contract	Frequency	% Made	Average Score
Contract Success
This table shows declarer's success in various contracts.
6♦	23	82.61%	74.53%
7N	12	75.00%	66.39%
6♠	100	73.00%	66.30%
4♣X	7	57.14%	61.02%
1♠	79	78.48%	59.94%
2♦X	6	33.33%	59.52%
1♥	35	94.29%	57.22%
2♠X	28	42.86%	55.21%
3N	1735	71.82%	55.15%
1N	720	72.36%	54.39%
4♥	1141	67.40%	53.64%
6♠X	4	50.00%	53.13%
2♥	569	71.70%	53.11%
4♣	144	55.56%	53.10%
1♠X	2	50.00%	52.86%
2♠	742	72.37%	52.49%
4♠	1624	67.80%	51.75%
1♦	27	62.96%	51.37%
6♥	77	54.55%	50.76%
1NX	25	32.00%	50.71%
2♦	252	73.81%	50.39%
3♥	545	55.96%	49.51%
3♠	606	59.24%	48.20%
3♣	312	64.42%	47.42%
2N	390	67.44%	47.36%

Passed Out	35	100.00%	46.83%
Part Score	5283	65.68%	50.37%
Game+	5764	64.57%	51.88%
Slam	334	55.99%	51.00%
Grand Slam	16	68.75%	64.17%
Doubled	472	24.36%	40.65%
Redoubled	2	50.00%	62.04%

Position		Name	Good leads	Total	Percent
Double Dummy Opening Lead Success Rate
This table shows how often you make an opening lead that does not cost a trick for the defence, double dummy. Hands where every card leads to the same result are not counted.
1	A♠	Joy Watkinson	30	32	93.75%
2	A♥	John Driscoll	52	57	91.23%
3	A♦	Jennifer Perkins	25	28	89.29%
4	A♣	Carol Minchin	22	25	88.00%
5	K♠	Paul Trotman	27	31	87.10%
6	K♥	Valerie Gardiner	40	46	86.96%
7	K♦	Jo McKeown	24	28	85.71%
8	K♣	Anita Thirtle	29	34	85.29%
9	Q♠	Jacinda Manconi	21	25	84.00%
10	Q♥	Susan Macken	31	37	83.78%
11	Q♦	Rex Green	30	36	83.33%
12	Q♣	Chris Turner	23	28	82.14%
13	J♠	Marilyn Jackson	27	33	81.82%
14	J♥	Susan Wedde	22	27	81.48%
15	J♦	Jo Clark	26	32	81.25%
16	J♣	Sara Worth	36	45	80.00%
16		Lee Moselen	20	25	80.00%
16		Sharon Marryatt	32	40	80.00%
16		Lynda Bateman	24	30	80.00%
16		Jennifer Beecroft	20	25	80.00%
21		Cheryl Winsor	35	44	79.55%
22		Helen Smith	23	29	79.31%
22		Patricia Mahoney	23	29	79.31%
22		Margaret Vodanovich	23	29	79.31%
25		Ian Beattie	48	61	78.69%
26		Jillian Ramsey	33	42	78.57%
26		Daisy Lu	22	28	78.57%
28		Bruce Cousins	28	36	77.78%
29		Maree Cudby	24	31	77.42%
29		Robyn Chalmers	24	31	77.42%
31		Jill Patterson	34	44	77.27%
32		Pam Nunn	20	26	76.92%
33		Mike Dunn	23	30	76.67%
34		Beverley Morris	26	34	76.47%
35		Claire Gunn	29	38	76.32%
36		Rosa Mishkin	48	63	76.19%
37		Gayle Cullwick	19	25	76.00%
37		Bryan Travers	19	25	76.00%
37		Janet Barnard	19	25	76.00%
37		Ash Hamilton	19	25	76.00%
41		Beth Henderson	22	29	75.86%
42		Rachael Goffin	25	33	75.76%
43		Chris Curreen	28	37	75.68%
44		Fiona Moon	52	69	75.36%
45		John Buckleton	63	84	75.00%
45		Liz Ware	36	48	75.00%
45		Cathy Carroll	87	116	75.00%
45		Douglas Russell	39	52	75.00%
49		Ian Clayton	32	43	74.42%
50		Arch Jelley	29	39	74.36%

Opening	Count	Frequency	Average Result
Opening Bid Success Rates
This table shows the average outcome for each opening bid for the opening side.
1♣	2236	20.24%	50.28%
1♦	2017	18.26%	50.20%
1♥	1603	14.51%	49.12%
1♠	1534	13.89%	50.13%
1N	1794	16.24%	52.02%
2♣	228	2.06%	52.00%
2♦	452	4.09%	53.94%
2♥	346	3.13%	50.20%
2♠	307	2.78%	52.14%
2N	140	1.27%	50.90%
3♣	96	0.87%	49.61%
3♦	81	0.73%	52.24%
3♥	49	0.44%	61.57%
3♠	57	0.52%	47.87%
3N	5	0.05%	72.67%
4♣	7	0.06%	67.43%
4♦	5	0.05%	56.14%
4♥	47	0.43%	50.75%
4♠	27	0.24%	58.93%
5♣	4	0.04%	53.94%
5♦	9	0.08%	48.28%
6♥	1	0.01%	80.00%

¹ For the ladder: you need to have played at least 5 times in Open sessions during the period to be listed. For every 2 extra sessions you play above that you get to drop your lowest score, e.g. if you play 9 times your worst 2 scores are discarded and the best 7 are averaged, or if you play 15 times your worst 5 scores are discarded and the best 10 are averaged. Only those sessions where you played with a partner with the same grade or higher are included because we want to encourage players to play with lower graded friends without affecting their average. Only sessions where you played at least 10 boards are included. Some sessions are harder than others but we aren't adjusting for that. Supervised/Beginner/Learner sessions aren't included. For monthly emails we show just the top 50. On the website we show a more complete ladder - those with an average equal to or higher than: 50% (Open), 47.5% (Intermediate), and 45% (Junior). Matches scored in X-IMPS/IMPS are converted to a percentage using the formula used by the EBU National Grading System.

² For multi-session results the position shown is the overall position for all the sessions played up to that point.

³ Distributional means having a 7+ card suit or a void.

⁴ Leads are imperfectly classified into leads of trumps, a sequence (eg QJ10 or QJ9 not Q109), a singleton or low doubleton vs. a suit contract, passive (a suit headed by the 10 or lower), or active (anything else). No account is taken (currently) of the bidding: whether you have led the unbid suit, partner's suit, or obeyed a lead directing double, etc.

⁵ [link] links to the actual hand in RealBridge, [BSOL] links to the hand in BridgeSolverOnline - click the highlighted contract in the makeable contracts table and the lead success will be calculated, your lead shows with an asterisk.

To send feedback email realbridge@akbc.co.nz; to contact the principal director email director@akbc.co.nz

Auckland Bridge Club