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Mar 2023

Ladder for 1 Mar 2023 to 31 Mar 2023

Online statistics for 1 Mar 2023 to 31 Mar 2023

We have calculated various ladders for online play on RealBridge sessions hosted by the Auckland Bridge Club for the period 1 Mar 2023 to 31 Mar 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
RankNameNumberClubPlayedAverage1
1A♠Ian Clayton4161Hamilton1362.93%
2A♥Patrick Carter3775Auckland561.98%
3A♦Cynthia Clayton13263Hamilton861.33%
4A♣Bruce Marr921743Australia560.39%
5K♠Richard Stuart38456Auckland657.87%
6K♥John Buckleton25761Auckland2257.80%
7K♦Janet Barnard1997Auckland757.36%
8K♣Mark Robertson35545Auckland1357.04%
9Q♠Douglas Russell15492Auckland1756.73%
10Q♥Robyn Freeman-Greene6603Victoria1256.28%
10Q♥Dale Lacey16928Wellington1256.28%
12Q♣Joy Watkinson5143Auckland956.23%
13J♠John Driscoll33587Taupo1455.91%
13J♠Rona Driscoll19976Taupo1555.91%
15J♦Nicky Bowers25766Auckland1355.43%
16J♣Russell Watt17820Auckland1355.40%
17Trudy Lange10107Auckland1055.21%
18Sylvester Riddell14427Auckland955.12%
19Pamela Marsland26367Akarana854.84%
20Ella Gray30450Hamilton554.73%
21Anne Gelb7057Auckland1054.73%
22Noel Woodhall46040Havelock North854.59%
23Jane Stearns22036Kerikeri554.56%
24Pauline Andrews1608Auckland954.46%
25Fiona Moon30514Auckland2354.37%
26Chris Fleming30408Auckland2254.29%
27Jillian Ramsey10632Havelock North954.23%
28Ian Beattie32124Christchurch954.20%
29Peter Ramsey43711Napier954.14%
30Gay Bradbury2863Auckland1753.72%
31Terry Cain19882Christchurch753.69%
32Mike Dunn5733Auckland853.59%
33Penny McRobie11898Auckland853.49%
34Christine Wilson31091North Shore653.38%
35Bev Penny33324Hastings853.26%
36Dennis Apperley52671Havelock North753.11%
37Claire Woodhall49178Havelock North653.10%
38Elaine Rayner34178Hamilton1052.96%
39Kevin Birch33810Franklin852.81%
39Premkumar Soundranayagam43882Howick852.81%
41Dianne Evans74554Winton852.70%
42Takayo Yanagisawa36064Auckland1252.67%
43Susan Steedman41147Mt Albert952.67%
43Dave Almond45127Mt Albert952.67%
45Marie Ewbank6081Auckland952.63%
46Les Gould7227Wanganui552.51%
47Rosa Mishkin9309Kairangi652.48%
48Jennifer Perkins13615Auckland752.37%
49Cathy Carroll31068Waiheke1452.27%
50Md Faisal Alam26807Howick552.04%
51Sara Worth3548None2251.89%
52Heather Robertson42382Auckland1251.71%
53Leslie Watt56607Auckland651.69%
54Alan Dormer1610Auckland551.62%
55Thomas Freeman-Greene51590Auckland1151.48%
56Graham Potter43094Havelock North551.39%
57Susan Wedde20104Auckland551.34%
58Thelma Burd32380Hamilton1051.26%
58Duncan White18466Hamilton1051.26%
60Pam Bannatyne25503Masterton551.15%
61Maree Cudby40303Levin650.96%
62Carol Minchin12176Nelson750.79%
63Margaret Harkness7844Auckland650.74%
64Dianne Benvie23123Auckland750.54%
 
Intermediate/Junior Ladder
RankNameNumberClubPlayedAverage1
1A♠Fiona Moon30514Auckland2354.37%
2A♥Chris Fleming30408Auckland2254.29%
3A♦Jillian Ramsey10632Havelock North954.23%
4A♣Ian Beattie32124Christchurch954.20%
5K♠Terry Cain19882Christchurch753.69%
6K♥Penny McRobie11898Auckland853.49%
7K♦Bev Penny33324Hastings853.26%
8K♣Elaine Rayner34178Hamilton1052.96%
9Q♠Takayo Yanagisawa36064Auckland1252.67%
10Q♥Susan Steedman41147Mt Albert952.67%
10Q♥Dave Almond45127Mt Albert952.67%
12Q♣Marie Ewbank6081Auckland952.63%
13J♠Cathy Carroll31068Waiheke1452.27%
14J♥Sara Worth3548None2251.89%
15J♦Heather Robertson42382Auckland1251.71%
16J♣Thomas Freeman-Greene51590Auckland1151.48%
17Susan Wedde20104Auckland551.34%
18Thelma Burd32380Hamilton1051.26%
18Duncan White18466Hamilton1051.26%
20Margaret Harkness7844Auckland650.74%
21Rae Cameron22165East Coast Bays2450.00%
22Liz Ware20198Auckland1249.98%
23Rex Green25371Christchurch549.87%
24Sybil Cornell4518Auckland1949.82%
25Trish Young37598Auckland849.54%
26Laurie Hinchcliff2064North Shore649.09%
27Richard Brookes70317Nelson748.94%
28Robin Hardley3748Auckland1248.48%
29Trish Murphy52605Hastings848.25%
30Brenda Campbell31209Waiheke1048.08%
31Robyn Chalmers15778Auckland747.93%
32Lee Moselen40370Auckland547.56%
 
Junior Ladder
RankNameNumberClubPlayedAverage1
1A♠Sara Worth3548None2251.89%
2A♥Thomas Freeman-Greene51590Auckland1151.48%
3A♦Brenda Campbell31209Waiheke1048.08%
4A♣Gopi Nayar51596Auckland545.48%
5K♠Georgia Mahoney1282Queenstown545.24%
 
 
Statistics for all boards:
Percentage when declarer: (12182) 50.60%
  ... percentage that made: (8078 of 12182) 66.31%
  ... when Opener holds at least 16 hcp: (2845) 50.22%
  ... when opened but most didn't: (393) 50.29%
  ... when Opener preempted: (1140) 51.23%
  ... was preempted when most didn't: (444) 53.99%
  ... when Declarer is distributional3: (1462 hands) 51.78%
  ... when in a unique contract: (2740) 44.43%
Percentage score when on opening lead: (12227) 49.42%
  ... when leading from a sequence4: (1626) 49.18%
  ... when leading trumps4: (325) 47.01%
  ... when trumps was the only right lead4: (12/181)
  ... when leading a singleton4: (602) 52.25%
  ... when leading a doubleton4: (486) 53.53%
  ... when leading passively4: (3011) 49.65%
  ... when leading actively4: (6131) 48.86%
Highest HCP:♠ AK1065 ♥ A2 ♦ AK10 ♣ AKJ [link] (26 hcp)
Freakiest Hand:♠ Q ♥ - ♦ KQ10843 ♣ AQJ875 [link]
♠ J982 ♥ - ♦ AJ987643 ♣ Q [link]
♠ K109754 ♥ K98743 ♦ - ♣ 8 [link]
♠ A109872 ♥ KJ8763 ♦ 6 ♣ - [link] (5.5)
Beer cards won: (24)
 

Who was dealt the MOST high card points on average?
RankNameHandsAverage HCP
1A♠Rex Green128 10.70
2A♥Robyn Chalmers176 10.61
3A♦Leslie Watt181 10.61
4A♣Mike Dunn219 10.56
5K♠Mary Christensen118 10.55
6K♥Elizabeth Grieve171 10.54
7K♦Wayne McCoy112 10.54
8K♣Janet Barnard241 10.53
9Q♠Bev Henton100 10.51
10Q♥Pam Nunn102 10.51
11Q♦Ian Beattie220 10.50
12Q♣Cynthia Singh109 10.49
13J♠Debbie Cooper170 10.48
14J♥Ian Ormiston105 10.45
15J♦Patrick Carter118 10.43
16J♣John Driscoll356 10.42

 

Who was dealt the LEAST high card points on average?
RankNameHandsAverage HCP
1A♠Sue Jury123 9.05
2A♥Bev Guilford102 9.15
3A♦Caroline Jones102 9.38
4A♣Graham Potter126 9.40
5K♠Anthony Wilson240 9.49
6K♥Bruce Marr120 9.53
7K♦Duncan White252 9.55
8K♣Sharon Mosley112 9.55
9Q♠Leo Sim112 9.55
10Q♥Bryan Travers153 9.58
11Q♦Pam Bannatyne125 9.59
12Q♣Richard Stuart152 9.61
13J♠Chris Turner160 9.61
14J♥Claire Woodhall142 9.61
15J♦Terry Cain166 9.62
16J♣Cathy Carroll356 9.64
 
Who was declares most frequently?
RankNameTotal HandsPercent as Declarer
1A♠Pam Nunn101 36.63%
2A♥William Leach140 32.86%
3A♦Rex Green128 32.81%
4A♣Premkumar Soundranayagam280 32.50%
5K♠Russell Watt328 32.32%
6K♥Jessica Morris164 32.32%
7K♦Valerie Gardiner112 32.14%
8K♣Ian Beattie218 31.65%
9Q♠Cynthia Singh108 31.48%
10Q♥Duncan White252 31.35%
11Q♦Maree Cudby166 31.33%
12Q♣Steve Moore139 30.22%
13J♠Sharon Marryatt209 30.14%
14J♥Takayo Yanagisawa313 30.03%
15J♦Jane Stearns130 30.00%
16J♣Sita Monaghan180 30.00%
 
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.
RankNameMakingTotalPercent
1A♠Patrick Carter313588.57%
2A♥Bruce Marr303488.24%
3A♦Bev Henton263086.67%
4A♣Leo Sim222684.62%
5K♠Mike Dunn465682.14%
6K♥Elizabeth Grieve293680.56%
7K♦Claire Woodhall243080.00%
7K♦Rosa Mishkin283580.00%
9Q♠Nicky Bowers698779.31%
9Q♠Ian Ormiston232979.31%
11Q♦Noel Woodhall415278.85%
12Q♣Pamela Marsland374778.72%
13J♠Cecilia Lim243177.42%
13J♠Susan Wedde243177.42%
15J♦Ian Clayton658477.38%
16J♣Laurie Hinchcliff273577.14%
17Ian Beattie536976.81%
18Trudy Lange557276.39%
19Christine Wilson253375.76%
20Marilyn Jackson283775.68%
21Elaine Ford314175.61%
22John Driscoll7710275.49%
23Dale Lacey587775.32%
24Sylvester Riddell638475.00%
24Lee Moselen212875.00%
26Russell Watt7910674.53%
27Janet Barnard527074.29%
27Nan McKay263574.29%
29Tony Winters202774.07%
29Marie Milsum202774.07%
31Rex Green314273.81%
32Mark Robertson537273.61%
33Douglas Russell9112473.39%
34Raymond Crowe223073.33%
35Jillian Ramsey385273.08%
35Carla Salinger192673.08%
35Anne Sim192673.08%
38Robyn Freeman-Greene658973.03%
39Rona Driscoll679272.83%
40Cynthia Clayton405572.73%
40Bev Penny324472.73%
40Wayne McCoy243372.73%
43Pauline Andrews537372.60%
44Cheryl Winsor456272.58%
45Suzy Hails212972.41%
45Les Gould212972.41%
45Md Faisal Alam212972.41%
48Gina Hsu Hsu263672.22%
49Liz Ware547572.00%
49Ratilal Ranchhod182572.00%
 
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.
PositionNameHandsAverage
1A♠Bev Penny44 +0.30
2A♥Graham Wakefield32 +0.28
3A♦John Khouri27 +0.26
4A♣Carla Salinger26 +0.23
5K♠Cynthia Clayton55 +0.22
6K♥Richard Stuart42 +0.21
7K♦Patrick Carter35 +0.17
8K♣Bruce Marr34 +0.15
9Q♠Duncan White79 +0.14
10Q♥Les Gould29 +0.14
11Q♦Noel Woodhall52 +0.13
12Q♣John Buckleton132 +0.10
13J♠Brenda Campbell72 +0.10
14J♥Anne Sim26 +0.08
15J♦Susan Macken93 +0.08
16J♣Tony Winters27 +0.07
17Cheryl Winsor62 +0.06
18Mike Dunn56 +0.05
19Mark Robertson72 +0.04
20Liz Ware75 +0.04
21Jessica Morris53 +0.04
22Peter Ramsey62 +0.03
23Ian Beattie69 +0.03
24Deirdre Oliver71 +0.03
25Penny McRobie46 +0.02
26Georgia Mahoney29 +0.00
26Ella Gray31 +0.00
26Nan McKay35 +0.00
26Wayne McCoy33 +0.00
26Bev Henton30 +0.00
 
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.
PositionNameHandsAverage
1A♠Michael Neels28 +0.68
2A♥Alex Shan37 +0.62
3A♦Jackie Taylor48 +0.58
4A♣Patrick Carter61 +0.57
5K♠Brenda Mauger25 +0.56
6K♥Ruth Allison28 +0.54
7K♦Julie Atkinson41 +0.51
8K♣Peter Collinge32 +0.50
8K♣Ngaere Webb32 +0.50
8K♣William Liu26 +0.50
11Q♦Ella Gray67 +0.49
12Q♣David Kranz54 +0.48
13J♠Helen Kinsey34 +0.47
13J♠Steve Kinsey34 +0.47
15J♦Monica Cheng30 +0.47
16J♣Caroline Jones54 +0.46
16J♣Bernard Lamusse54 +0.46
18Jennifer Beecroft26 +0.46
18Christina Hyde26 +0.46
20Sophie Kranz62 +0.45
21Gary Swift87 +0.45
22Rosemary Hargest34 +0.44
23Joy Watkinson119 +0.44
24Nola Clark56 +0.43
25Andrew Michl26 +0.42
26Roger Minchin38 +0.42
27Carol Minchin93 +0.41
28Mary Allison57 +0.40
29Ian Ormiston60 +0.40
30Barbara Wilkes49 +0.39
31Leo Sim60 +0.38
31Anne Sim60 +0.38
33Heather Robertson171 +0.38
34Sita Monaghan88 +0.38
35Ian Clayton155 +0.37
36Claire Woodhall75 +0.37
37Lynn Bartram30 +0.37
38Rachael Goffin58 +0.36
39Ray Curnow25 +0.36
40Gillian Corbett39 +0.36
41Noel Woodhall92 +0.35
42Graeme Prentice29 +0.34
42Kinga Hajmasi29 +0.34
42Candice Smith29 +0.34
45Lucian Gabriel32 +0.34
46Derek Bartosh35 +0.34
46Aaron Starr35 +0.34
48Jane Stearns53 +0.34
49Anne Miller27 +0.33
49Kathryn Burgess27 +0.33
 
 
Contract Success
This table shows declarer's success in various contracts.
ContractFrequency% MadeAverage Score
7♦X2 0.00% 72.23%
7♥7 85.71% 68.57%
7N9 66.67% 67.78%
6♣26 73.08% 62.46%
6NX3 66.67% 60.00%
6♥97 70.10% 58.44%
1♥X4 50.00% 56.79%
2♠X22 40.91% 56.24%
6♦49 65.31% 56.20%
1N792 72.98% 54.44%
Pass45 100.00% 54.15%
3♠X35 45.71% 53.93%
2♠868 73.16% 53.93%
3N2116 73.30% 53.85%
2♥693 73.45% 53.56%
6N131 56.49% 53.48%
4♥1363 71.97% 53.00%
1♥56 83.93% 52.97%
1♠104 75.96% 50.71%
4♠1387 68.71% 50.69%
5♥101 60.40% 50.36%
3♥X18 27.78% 49.41%
2♦269 67.66% 48.88%
3♠643 58.63% 48.54%
6♠72 56.94% 48.24%
 
Passed Out45 100.00% 54.15%
Part Score5982 65.58% 49.70%
Game+6200 67.02% 51.46%
Slam396 59.85% 53.05%
Grand Slam30 53.33% 54.70%
Doubled456 23.68% 38.29%
 
 
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.
PositionNameGood leadsTotalPercent
1A♠Joy Watkinson303293.75%
2A♥Liz Ewart323688.89%
3A♦Bev Penny323786.49%
4A♣Graham Wakefield242885.71%
5K♠Cheryl Winsor344085.00%
6K♥Richard Stuart222684.62%
7K♦Dianne Evans394782.98%
8K♣Maree Cudby232882.14%
9Q♠Md Faisal Alam222781.48%
10Q♥Sharon Marryatt263281.25%
11Q♦Brenda Campbell384780.85%
12Q♣Graham Potter212680.77%
13J♠Dong Gao Bi415180.39%
14J♥Kevin Birch405080.00%
15J♦Chris Fleming8710979.82%
16J♣Nan McKay232979.31%
16Robyn Chalmers232979.31%
16Christine Haronga232979.31%
19Penny McRobie344379.07%
20Elizabeth Grieve263378.79%
21Rosa Mishkin334278.57%
22Alan Dormer324178.05%
23Alan France212777.78%
24Heather Robertson516677.27%
25Dave Almond506576.92%
25Mark Robertson506576.92%
25Malcolm Smith506576.92%
25Peter Ramsey303976.92%
25Jill Church405276.92%
30Janet Barnard334376.74%
31Margaret Harkness263476.47%
32Debbie Cooper293876.32%
33Robin Hardley455976.27%
34Jillian Ramsey324276.19%
35Lynda Bateman192576.00%
36Gay Bradbury8210875.93%
37Terry Cain222975.86%
38Elaine Rayner344575.56%
39Robyn Freeman-Greene374975.51%
40Marilyn Jackson243275.00%
41Ian Clayton415574.55%
42Sybil Cornell679074.44%
43Elizabeth Gollan587874.36%
44Carol Minchin233174.19%
45Anthony Wilson405474.07%
45Bev Guilford202774.07%
47Anne Gelb7810673.58%
48Gary Swift253473.53%
49Russell Watt364973.47%
50Duncan White385273.08%
 
 
Opening Bid Success Rates
This table shows the average outcome for each opening bid for the opening side.
OpeningCountFrequencyAverage Result
1♣ 2647 21.73% 49.56%
1♦ 2203 18.09% 49.94%
1♥ 1918 15.75% 50.67%
1♠ 1875 15.39% 50.01%
1N 1914 15.71% 51.93%
2♣ 209 1.72% 52.10%
2♦ 415 3.41% 52.47%
2♥ 274 2.25% 50.92%
2♠ 240 1.97% 51.50%
2N 180 1.48% 50.19%
3♣ 82 0.67% 50.16%
3♦ 86 0.71% 51.44%
3♥ 54 0.44% 48.13%
3♠ 27 0.22% 51.37%
3N 2 0.02% 65.00%
4♣ 3 0.02% 23.33%
4♦ 5 0.04% 47.71%
4♥ 27 0.22% 48.86%
4♠ 14 0.11% 55.20%
5♣ 2 0.02% 20.83%
5♦ 4 0.03% 39.93%
 

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

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