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Oct 2023

Ladder for 1 Oct 2023 to 31 Oct 2023

Online statistics for 1 Oct 2023 to 31 Oct 2023
We have calculated a ladder for online play on RealBridge sessions hosted by the Auckland Bridge Club for the period 1 Oct 2023 to 31 Oct 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 will continue to evolve. Please let us know (realbridge@akbc.co.nz) if you spot any problems or have any suggestions. There are more ladders on the club website.
 
Open Ladder
Rank Name Number Club Played Average1
1 A♠ Patrick Carter 3775 Auckland 6 58.78%
2 A♥ Mark Robertson 35545 Auckland 11 58.24%
3 A♦ Ian Clayton 4161 Hamilton 6 57.68%
4 A♣ Kevin Hu 46340 Akarana 5 57.22%
5 K♠ Ray Crowe 4850 Winton 7 57.20%
6 K♥ John Buckleton 25761 Auckland 21 56.87%
7 K♦ Robyn Freeman-Greene 6603 Victoria 7 56.68%
7 K♦ Dale Lacey 16928 Wellington 7 56.68%
9 Q♠ Dianne Evans 74554 Winton 9 56.58%
10 Q♥ Daisy Lu 51209 Mt Albert 6 56.35%
11 Q♦ Carol Minchin 12176 Nelson 5 56.18%
12 Q♣ Leah Andrews 21534 Auckland 5 55.64%
13 J♠ Sylvester Riddell 14427 Auckland 5 55.51%
14 J♥ Douglas Russell 15492 Auckland 11 55.37%
15 J♦ Ray Kingston 9878 Auckland 18 55.27%
16 J♣ Michael Johnstone 9407 Timaru 10 55.21%
16 J♣ Paula Gregory 56372 Timaru 10 55.21%
18 Trish Murphy 52605 Hastings 7 54.98%
19 Graham Wakefield 17525 Auckland 5 54.64%
20 Md Faisal Alam 26807 Howick 9 54.62%
21 Joy Watkinson 5143 Auckland 7 54.60%
22 Jeremy Fraser-Hoskin 39794 Akarana 5 54.46%
23 Cheryl Winsor 10588 Howick 10 54.14%
24 Pauline Andrews 1608 Auckland 10 54.10%
25 Trudy Lange 10107 Auckland 19 53.81%
26 Julia Thomas 27847 Christchurch 5 53.54%
27 Rachael Goffin 20151 Auckland 6 53.47%
28 Pamela Marsland 26367 Akarana 10 53.47%
29 Anne Gelb 7057 Auckland 18 53.26%
30 Peter Ramsey 43711 Napier 5 53.09%
31 Pam Nunn 151904 🦘 Australia 5 53.00%
32 Nicky Bowers 25766 Auckland 14 52.93%
33 Marilyn Jackson 61101 Invercargill 5 52.54%
34 Heather Robertson 42382 Auckland 10 52.54%
35 Lorraine Inglis 9054 Kapi Mana 5 52.53%
36 Leslie Watt 56607 Auckland 6 52.48%
37 Judith Chandler 9758 Auckland 14 52.48%
38 Russell Watt 17820 Auckland 7 52.27%
39 Cathy Carroll 31068 Waiheke 8 51.95%
40 Rona Driscoll 19976 Taupo 14 51.76%
41 Thomas Freeman-Greene 51590 Auckland 9 51.67%
42 Sara Worth 3548 Akarana 16 51.47%
43 Jo Clark 4097 Auckland 5 51.20%
44 Chris Fleming 30408 Auckland 16 51.11%
45 Takayo Yanagisawa 36064 Auckland 12 50.90%
46 Gay Bradbury 2863 Auckland 10 50.84%
47 Beverley Morris 24081 Auckland 8 50.84%
48 Bev Guilford 26527 Auckland 9 50.83%
49 Diana Easson 36412 Invercargill 8 50.82%
50 Helene Labreche 28151 East Coast Bays 5 50.75%
51 Ian Beattie 32124 Christchurch 8 50.71%
52 Carol Joseph 32272 Auckland 11 50.66%
53 Carla Salinger 42862 Auckland 6 50.62%
54 Kevin Birch 33810 Franklin 7 50.59%
55 John Driscoll 33587 Taupo 10 50.49%
 
Intermediate/Junior Ladder
Rank Name Number Club Played Average1
1 A♠ Daisy Lu 51209 Mt Albert 6 56.35%
2 A♥ Leah Andrews 21534 Auckland 5 55.64%
3 A♦ Trish Murphy 52605 Hastings 7 54.98%
4 A♣ Julia Thomas 27847 Christchurch 5 53.54%
5 K♠ Heather Robertson 42382 Auckland 10 52.54%
6 K♥ Cathy Carroll 31068 Waiheke 8 51.95%
7 K♦ Thomas Freeman-Greene 51590 Auckland 9 51.67%
8 K♣ Sara Worth 3548 Akarana 16 51.47%
9 Q♠ Chris Fleming 30408 Auckland 16 51.11%
10 Q♥ Takayo Yanagisawa 36064 Auckland 12 50.90%
11 Q♦ Diana Easson 36412 Invercargill 8 50.82%
12 Q♣ Helene Labreche 28151 East Coast Bays 5 50.75%
13 J♠ Ian Beattie 32124 Christchurch 8 50.71%
14 J♥ Carla Salinger 42862 Auckland 6 50.62%
15 J♦ Ben Wang 54552 Auckland 9 49.98%
16 J♣ Terry Cain 19882 Christchurch 5 49.81%
17 Anna Powell 1514 Auckland 6 49.64%
18 Kate Ramsay 15423 Invercargill 5 49.31%
19 Brenda Campbell 31209 Waiheke 6 49.07%
20 Trish Young 37598 Auckland 6 48.99%
21 Marie Ewbank 6081 Auckland 8 48.47%
22 Fiona Moon 30514 Auckland 16 48.43%
23 Rex Green 25371 Christchurch 5 48.36%
24 Thelma Burd 32380 Hamilton 5 48.30%
25 Paula McTaggart 52641 Auckland 15 48.16%
26 Jo McKeown 44104 Auckland 7 48.01%
26 Beth Henderson 38982 Hibiscus Coast 7 48.01%
 
Junior Ladder
Rank Name Number Club Played Average1
1 A♠ Daisy Lu 51209 Mt Albert 6 56.35%
2 A♥ Thomas Freeman-Greene 51590 Auckland 9 51.67%
3 A♦ Sara Worth 3548 Akarana 16 51.47%
4 A♣ Ben Wang 54552 Auckland 9 49.98%
5 K♠ Brenda Campbell 31209 Waiheke 6 49.07%
6 K♥ Paula McTaggart 52641 Auckland 15 48.16%
7 K♦ Jo McKeown 44104 Auckland 7 48.01%
7 K♦ Beth Henderson 38982 Hibiscus Coast 7 48.01%
9 Q♠ John Lory 16275 Christchurch 5 45.26%
10 Q♥ David Kranz 52775 Auckland 9 45.04%
 
 
Statistics for all boards:
Percentage when declarer: (11930) 51.00%
  ... percentage that made: (7857 of 11930) 65.86%
  ... when Opener holds at least 16 hcp: (3111) 50.35%
  ... when opened but most didn't: (381) 53.46%
  ... when Opener preempted: (1299) 50.84%
  ... was preempted when most didn't: (420) 52.64%
  ... when Declarer is distributional3: (1587 hands) 52.10%
  ... when in a unique contract: (2736) 44.88%
Percentage score when on opening lead: (11970) 49.02%
  ... when leading from a sequence4: (1656) 49.27%
  ... when leading trumps4: (409) 45.76%
  ... when trumps was the only right lead4: (7/182)
  ... when leading a singleton4: (667) 51.21%
  ... when leading a doubleton4: (424) 52.67%
  ... when leading passively4: (2963) 49.42%
  ... when leading actively4: (5811) 48.42%
Highest HCP: ♠ AK42 ♥ AKJ84 ♦ A ♣ AK5 Board 12, AKBC - Open - Thu 26 Oct - 1pm
♠ A5 ♥ AKQ ♦ A10865 ♣ AKQ Board 24, AKBC - Open - Wed 4 Oct - 7pm (26 hcp)
Freakiest Hand: ♠ - ♥ - ♦ AKQJ9742 ♣ KQ1086 Board 18, AKBC - Open IMP Pairs - Mon 2 Oct - 7pm (6.5)
Beer cards won: (18)
 
Who was dealt the MOST high card points on average?
Rank Name Hands Average HCP
1 A♠ Candice Smith 108 10.87
2 A♥ Karen Palmer 124 10.81
3 A♦ Barbara Wilkes 132 10.70
4 A♣ Carol Minchin 191 10.67
5 K♠ Valerie Gardiner 273 10.66
6 K♥ Sylvester Riddell 130 10.61
7 K♦ Christine Wilson 121 10.59
8 K♣ Joanna Silk 149 10.54
9 Q♠ Jillian Ramsey 106 10.53
10 Q♥ Jimmy Ching 225 10.52
11 Q♦ Sandra Prichard 108 10.51
12 Q♣ Bryan Travers 132 10.50
13 J♠ Rachael Goffin 156 10.44
14 J♥ Leah Andrews 129 10.44
15 J♦ Thelma Burd 157 10.38
16 J♣ Carol Joseph 315 10.37

 

Who was dealt the LEAST high card points on average?
Rank Name Hands Average HCP
1 A♠ Robyn Chalmers 109 9.24
2 A♥ Joy Watkinson 181 9.36
3 A♦ Patrick Carter 151 9.37
4 A♣ Anita Thirtle 112 9.41
5 K♠ Lynn Hall 222 9.43
6 K♥ Tim Pan 112 9.50
7 K♦ William Leach 168 9.53
8 K♣ Carla Salinger 150 9.57
9 Q♠ Suzy Hails 164 9.57
10 Q♥ Ruth Allison 140 9.60
11 Q♦ Paula McTaggart 493 9.61
12 Q♣ Cynthia Clayton 150 9.61
13 J♠ Jude Wood 112 9.62
14 J♥ Mike Dunn 146 9.62
15 J♦ Tony Winters 204 9.63
16 J♣ Malcolm Smith 102 9.63
 
Who declares most frequently?
Rank Name Total Hands Percent as Declarer
1 A♠ Candice Smith 107 37.38%
2 A♥ Jill Church 178 35.96%
3 A♦ Jeremy Fraser-Hoskin 136 34.56%
4 A♣ William Leach 168 34.52%
5 K♠ Ben Wang 260 32.69%
6 K♥ Hafizur Khan 124 32.26%
7 K♦ Cheryl Winsor 330 32.12%
8 K♣ Sara Worth 406 32.02%
9 Q♠ Allan Morris 150 32.00%
10 Q♥ Pamela Dravitzki 100 32.00%
11 Q♦ Bruce Marr 127 31.50%
12 Q♣ Lysandra Zheng 112 31.25%
13 J♠ Monique Shephard 108 30.56%
14 J♥ Helen Smith 182 30.22%
15 J♦ Thomas Freeman-Greene 242 30.17%
16 J♣ Pauline Andrews 262 30.15%
 
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♠ Rebecca Osborne 23 26 88.46%
2 A♥ Kevin Hu 36 41 87.80%
3 A♦ Nola Clark 22 26 84.62%
4 A♣ Barbara Daly 21 25 84.00%
5 K♠ Sue Spencer 28 34 82.35%
6 K♥ Paul Buck 23 28 82.14%
7 K♦ Jennifer Perkins 28 35 80.00%
8 K♣ Paula Boughey 27 34 79.41%
9 Q♠ Marilyn Jackson 30 38 78.95%
10 Q♥ Julie Atkinson 21 27 77.78%
11 Q♦ Carla Salinger 30 39 76.92%
12 Q♣ Trish Murphy 33 43 76.74%
13 J♠ Mark Robertson 69 90 76.67%
13 J♠ John Khouri 23 30 76.67%
15 J♦ Trish Young 31 41 75.61%
16 J♣ Rona Driscoll 65 86 75.58%
17 Rachael Goffin 34 45 75.56%
18 Diana Easson 37 49 75.51%
19 Graham Potter 21 28 75.00%
19 Barbara Wilkes 21 28 75.00%
19 Pamela Dravitzki 24 32 75.00%
22 Jessica Morris 26 35 74.29%
22 Gary Chen 26 35 74.29%
24 Katherine Griffith 23 31 74.19%
25 Ruth Allison 28 38 73.68%
26 Robyn Freeman-Greene 39 53 73.58%
27 Ginny Stuart 22 30 73.33%
28 George Kaul 19 26 73.08%
28 Cynthia Clayton 19 26 73.08%
28 Graham Wakefield 38 52 73.08%
31 Jo Clark 24 33 72.73%
32 Candice Smith 29 40 72.50%
33 John Lory 18 25 72.00%
34 Lorraine Inglis 23 32 71.88%
34 Lynda Bateman 23 32 71.88%
36 Dianne Evans 53 74 71.62%
37 Barbie Cook 20 28 71.43%
37 Terry Cain 25 35 71.43%
37 Zachary Yan 35 49 71.43%
37 Lucie Armstrong 25 35 71.43%
37 Lysandra Zheng 25 35 71.43%
42 Sylvester Riddell 27 38 71.05%
43 Pauline Andrews 56 79 70.89%
44 Pamela Marsland 41 58 70.69%
45 Suzy Hails 24 34 70.59%
46 Rex Green 26 37 70.27%
47 Bruce Marr 28 40 70.00%
47 Daisy Lu 28 40 70.00%
47 Maureen Piper 21 30 70.00%
50 Anthony Wilson 65 93 69.89%
 
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
1 A♠ Kevin Hu 41 +0.44
2 A♥ Pamela Dravitzki 32 +0.31
3 A♦ Allan Morris 48 +0.19
4 A♣ Barbara Daly 25 +0.16
5 K♠ Cynthia Clayton 26 +0.15
6 K♥ Julie Atkinson 27 +0.15
7 K♦ Lysandra Zheng 35 +0.14
8 K♣ Alan Dormer 36 +0.14
9 Q♠ John Lory 25 +0.12
10 Q♥ Carol Minchin 53 +0.11
11 Q♦ Anna Powell 45 +0.11
12 Q♣ Cheryl Winsor 106 +0.09
13 J♠ Jeremy Fraser-Hoskin 47 +0.09
14 J♥ Sylvester Riddell 38 +0.08
15 J♦ George Kaul 26 +0.08
16 J♣ Katherine Griffith 31 +0.06
17 Nicky Bowers 79 +0.06
18 Graham Dale 33 +0.06
19 Dale Lacey 44 +0.05
20 Cathy Carroll 56 +0.04
21 Ben Wang 85 +0.04
22 Hafizur Khan 40 +0.03
23 Douglas Russell 96 +0.02
24 Leslie Watt 40 +0.00
24 Michael Johnstone 74 +0.00
24 Allan Joseph 30 +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
1 A♠ Sharon Kopschaninow 32 +0.69
2 A♥ Jackie Humphrey 30 +0.60
3 A♦ Cecilia Lim 36 +0.58
4 A♣ Sophie Kranz 51 +0.53
4 A♣ Mark Bendall 34 +0.53
4 A♣ Leonie Pritchard 34 +0.53
7 K♦ Carolyn Guthrie 33 +0.52
8 K♣ Maureen Piper 48 +0.50
8 K♣ Jack James 42 +0.50
10 Q♥ Anna Kalma 31 +0.48
11 Q♦ Tom Mulvey 27 +0.48
12 Q♣ Andrew Michl 45 +0.47
12 Q♣ Candice Smith 45 +0.47
14 J♥ Lachie Shea 26 +0.46
15 J♦ Mary Dravitzki 35 +0.46
16 J♣ Bruce Marr 66 +0.45
17 Elizabeth Gollan 42 +0.45
18 Lynn Bartram 40 +0.45
19 Joanna Silk 69 +0.45
20 Alan Dormer 58 +0.45
21 Jan Bennett 36 +0.44
22 Ben Zhong 25 +0.44
22 Yvonne Zhang 25 +0.44
22 Pamela Dravitzki 50 +0.44
25 Paula Boughey 64 +0.44
26 Ginny Stuart 39 +0.44
27 Ian Brash 37 +0.43
28 Bernard Lamusse 35 +0.43
29 Rhonda Graham 33 +0.42
30 Ian Clayton 104 +0.42
30 Richard Stuart 26 +0.42
32 Zachary Yan 95 +0.42
33 Pauline Andrews 117 +0.42
34 Glennis Christie 58 +0.41
35 Mike Dunn 72 +0.40
36 Paul Buck 69 +0.39
36 Pam Nunn 69 +0.39
38 Kevin Hu 98 +0.39
39 Bev Henton 57 +0.39
40 Patrick Carter 78 +0.38
41 Dennise Biddick 32 +0.38
42 Ray Crowe 94 +0.37
43 Sarah Green 35 +0.37
44 Douglas Russell 197 +0.36
45 Martin Oyston 25 +0.36
45 Pat Oyston 25 +0.36
47 Malcolm Smith 53 +0.36
48 Janet Barnard 28 +0.36
49 Thelma Burd 60 +0.35
50 Julie Atkinson 52 +0.35
 
 
Contract Success
This table shows declarer's success in various contracts.
ContractFrequency% MadeAverage Score
7N 11 81.82% 73.94%
1♠X 5 80.00% 69.34%
7♥ 3 66.67% 68.79%
6♥ 89 80.90% 67.19%
7♣ 2 100.00% 58.33%
Pass 40 100.00% 56.22%
6N 58 68.97% 54.95%
1N 676 69.67% 54.82%
2♥ 623 74.64% 54.04%
6♠ 87 58.62% 53.80%
2♠ 845 75.98% 53.63%
3N 2059 72.61% 53.52%
6♦ 26 53.85% 53.47%
1♥ 49 93.88% 53.45%
4♠ 1560 69.55% 53.40%
5N 17 64.71% 53.35%
6♣ 32 43.75% 53.01%
2♦ 248 75.81% 52.82%
3♣X 18 33.33% 51.74%
1♦ 28 89.29% 51.50%
4♥ 1396 68.19% 51.49%
1♠ 106 83.96% 51.15%
3NX 6 50.00% 50.35%
1♣ 18 72.22% 50.32%
3♦ 377 69.76% 50.06%
 
Passed Out 40 100.00% 56.22%
Part Score 5570 65.58% 50.40%
Game+ 6360 66.10% 51.52%
Slam 321 61.37% 56.21%
Grand Slam 21 66.67% 61.08%
Doubled 610 28.20% 40.69%
Redoubled 3 33.33% 45.45%
 
 
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
1 A♠ Lynn Hall 27 31 87.10%
2 A♥ Dale Lacey 23 27 85.19%
3 A♦ Barbie Cook 26 31 83.87%
4 A♣ Heather Robertson 41 49 83.67%
5 K♠ Anne Gelb 72 87 82.76%
5 K♠ Katherine Griffith 24 29 82.76%
7 K♦ Carol Minchin 22 27 81.48%
8 K♣ Carol Joseph 42 52 80.77%
9 Q♠ Ray Kingston 69 86 80.23%
10 Q♥ Ruth Allison 24 30 80.00%
10 Q♥ Daisy Lu 20 25 80.00%
12 Q♣ Judith Chandler 51 64 79.69%
13 J♠ Pauline Andrews 35 44 79.55%
14 J♥ Trish Murphy 26 33 78.79%
14 J♥ Cynthia Clayton 26 33 78.79%
16 J♣ Arch Jelley 22 28 78.57%
16 Jeremy Fraser-Hoskin 22 28 78.57%
18 Chris Turner 40 51 78.43%
19 Takayo Yanagisawa 53 68 77.94%
20 Anthony Wilson 70 90 77.78%
20 Gopi Nayar 35 45 77.78%
20 Bryan Travers 21 27 77.78%
23 Graham Wakefield 24 31 77.42%
23 Nicky Bowers 48 62 77.42%
25 Marie Ewbank 27 35 77.14%
26 Mark Robertson 40 52 76.92%
26 Neil Horsfield 20 26 76.92%
26 Bev Henton 20 26 76.92%
29 Gay Bradbury 59 77 76.62%
30 Lorraine Inglis 19 25 76.00%
31 Ian Clayton 25 33 75.76%
32 Helen Smith 28 37 75.68%
32 Sybil Cornell 28 37 75.68%
34 Beverley Morris 34 45 75.56%
34 Marilyn Jackson 34 45 75.56%
36 Allan Morris 24 32 75.00%
36 Peter Mclean 21 28 75.00%
38 Chris Fleming 61 82 74.39%
39 Rosa Mishkin 20 27 74.07%
39 Kate Ramsay 20 27 74.07%
41 Rona Driscoll 71 96 73.96%
42 Paul Buck 22 30 73.33%
43 Peter Ramsey 19 26 73.08%
43 Thelma Burd 19 26 73.08%
43 Mike Dunn 19 26 73.08%
43 Pam Nunn 19 26 73.08%
47 Felicity Hannay 46 63 73.02%
48 Jimmy Ching 35 48 72.92%
49 Jo McKeown 29 40 72.50%
50 Dianne Benvie 50 69 72.46%
 

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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