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Dec-Jan 2023
Ladder for 1 Dec 2022 to 31 Jan 2023

Online statistics for 1 Dec 2022 to 31 Jan 2023
We have calculated various ladders for online play on RealBridge sessions hosted by the Auckland Bridge Club for the two-month period 1 Dec 2022 to 31 Jan 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.

There is a new table this month: Double Dummy Defender Success.
 
Open Ladder
Rank Name Number Club Played Average1
1 A♠ Sylvester Riddell 14427 Auckland 13 59.39%
2 A♥ Mark Robertson 35545 Auckland 6 59.13%
3 A♦ Douglas Russell 15492 Auckland 17 58.99%
4 A♣ John Khouri 9809 Auckland 9 58.90%
5 K♠ Cynthia Clayton 13263 Hamilton 20 58.85%
6 K♥ Ian Clayton 4161 Hamilton 21 58.44%
7 K♦ John Buckleton 25761 Auckland 26 58.29%
8 K♣ Derek Bartosh 3467 Auckland 15 58.05%
9 Q♠ Pamela Marsland 26367 Akarana 9 57.82%
10 Q♥ Trudy Lange 10107 Auckland 13 57.64%
11 Q♦ Rachael Goffin 20151 Auckland 19 57.53%
12 Q♣ Jan Bennett 36764 Auckland 12 57.38%
13 J♠ Lachie Shea 15371 Auckland 7 57.29%
14 J♥ Carol Minchin 12176 Nelson 10 57.20%
15 J♦ Mike Dunn 5733 Auckland 18 56.95%
16 J♣ Christine Wilson 31091 North Shore 21 56.65%
17 Peter Ramsey 43711 Napier 16 56.57%
18 Liz Ware 20198 Auckland 19 56.49%
19 Patrick Carter 3775 Auckland 12 56.42%
20 Bruce Marr 921743 Australia 5 56.17%
21 Paula Boughey 70022 Akarana 10 56.15%
22 Rebecca Osborne 11784 Tauranga 7 56.00%
23 Gay Bradbury 2863 Auckland 14 55.84%
24 Jerry Chen 33838 Akarana 5 55.76%
25 Peter Goffin 7115 Auckland 9 55.65%
26 Sita Monaghan 54890 Nelson 7 55.65%
27 Heather Robertson 42382 Auckland 18 55.64%
28 Rona Driscoll 19976 Taupo 19 55.52%
29 Rineke Mansell 4269 Auckland 6 55.45%
30 Jillian Ramsey 10632 Havelock North 18 55.35%
31 John Driscoll 33587 Taupo 18 55.31%
32 Sharon Mosley 64879 Akarana 7 55.24%
33 Ray Kingston 9878 Auckland 9 55.09%
34 Cheryl Winsor 10588 Howick 11 54.74%
35 Elizabeth Grieve 7446 Auckland 8 54.35%
36 Roger Minchin 12174 Nelson 5 54.33%
37 John Cullen - Unknown 6 54.30%
38 Allan Morris 24080 Auckland 9 54.28%
39 Cathy Carroll 31068 Waiheke 18 54.18%
40 Dave Almond 45127 Mt Albert 14 54.15%
41 Trish Murphy 52605 Hastings 15 54.06%
42 Md Faisal Alam 26807 Howick 10 54.03%
43 Beverley Morris 24081 Auckland 11 54.01%
44 Sharon Stevens - Unknown 6 53.76%
45 Fiona Moon 30514 Auckland 22 53.73%
46 Russell Watt 17820 Auckland 12 53.71%
47 Robyn Freeman-Greene 6603 Victoria 6 53.70%
47 Dale Lacey 16928 Wellington 6 53.70%
49 Pauline Andrews 1608 Auckland 17 53.68%
50 Janet Barnard 1997 Auckland 15 53.63%
51 Alan Currie 1436 Orewa 5 53.63%
52 Jennifer Perkins 13615 Auckland 7 53.49%
53 Sara Worth 3548 None 27 53.46%
54 Susan Steedman 41147 Mt Albert 11 53.41%
55 Peter Collinge 46027 Havelock North 7 53.12%
55 Ngaere Webb 17903 Masterton 7 53.12%
57 Nicky Bowers 25766 Auckland 22 53.11%
58 Chris Fleming 30408 Auckland 18 53.08%
59 Peter Hensman 8262 Auckland 6 53.00%
60 Anne Gelb 7057 Auckland 10 53.00%
61 Premkumar Soundranayagam 43882 Howick 16 52.98%
62 Kevin Birch 33810 Franklin 18 52.96%
63 Richard Brookes 70317 Nelson 11 52.93%
64 Penny McRobie 11898 Auckland 6 52.88%
65 Carol Joseph 32272 Auckland 16 52.82%
66 Judith Chandler 9758 Auckland 15 52.78%
67 Trish Young 37598 Auckland 26 52.77%
68 Joy Watkinson 5143 Auckland 9 52.61%
69 Takayo Yanagisawa 36064 Auckland 22 52.57%
70 Elaine Rayner 34178 Hamilton 10 52.38%
71 Valerie Gardiner 29595 Akarana 10 52.37%
72 Thomas Freeman-Greene 51590 Auckland 10 52.34%
73 Dianne Evans 74554 Winton 13 52.27%
74 Thelma Burd 32380 Hamilton 10 52.23%
74 Duncan White 18466 Hamilton 10 52.23%
76 Nola Clark 4103 Auckland 8 52.05%
77 Dianne Benvie 23123 Auckland 15 51.98%
78 Hilda Burgess 24313 Victoria 5 51.76%
79 Ronald Evans 74547 Winton 5 51.70%
80 Leslie Watt 56607 Auckland 6 51.56%
81 Diana Easson 36412 Invercargill 5 51.54%
82 Susan Rowe 22929 Howick 8 51.47%
83 Mark Bendall 37685 Rotorua 7 51.32%
84 Robert Gibbons 6885 Auckland 5 50.90%
85 Arch Jelley 18787 Mt Albert 11 50.82%
86 Anne Reid - Unknown 5 50.74%
87 Pam Nunn 151904 Australia 5 50.67%
87 Paul Buck 697990 Australia 5 50.67%
89 Pamela Dravitzki 42568 Richmond 6 50.59%
90 Rosa Mishkin 9309 Kairangi 5 50.49%
91 Anthony Abbott 151531 Australia 5 50.45%
92 Robyn Chalmers 15778 Auckland 8 50.40%
93 Bruce Cousins 30185 Howick 11 50.39%
94 Leonie Pritchard 37028 Rotorua 8 50.35%
95 Susan Wedde 20104 Auckland 6 50.32%
96 Andrew Michl 21552 Royle Epsom 5 50.29%
97 Debbie Cooper 19033 Invercargill 7 50.18%
98 Lucie Armstrong 49013 Hamilton 8 50.09%
98 Barbara Daly 43568 Hamilton 8 50.09%
100 Marie Ewbank 6081 Auckland 9 50.09%
101 Diane Groom 28237 Richmond 6 50.07%
101 Shirley Lattimore 58103 Christchurch 6 50.07%
 
Intermediate/Junior Ladder
Rank Name Number Club Played Average1
1 A♠ Derek Bartosh 3467 Auckland 15 58.05%
2 A♥ Jan Bennett 36764 Auckland 12 57.38%
3 A♦ Liz Ware 20198 Auckland 19 56.49%
4 A♣ Heather Robertson 42382 Auckland 18 55.64%
5 K♠ Rineke Mansell 4269 Auckland 6 55.45%
6 K♥ Jillian Ramsey 10632 Havelock North 18 55.35%
7 K♦ Cathy Carroll 31068 Waiheke 18 54.18%
8 K♣ Dave Almond 45127 Mt Albert 14 54.15%
9 Q♠ Trish Murphy 52605 Hastings 15 54.06%
10 Q♥ Fiona Moon 30514 Auckland 22 53.73%
11 Q♦ Sara Worth 3548 None 27 53.46%
12 Q♣ Susan Steedman 41147 Mt Albert 11 53.41%
13 J♠ Chris Fleming 30408 Auckland 18 53.08%
14 J♥ Richard Brookes 70317 Nelson 11 52.93%
15 J♦ Penny McRobie 11898 Auckland 6 52.88%
16 J♣ Trish Young 37598 Auckland 26 52.77%
17 Takayo Yanagisawa 36064 Auckland 22 52.57%
18 Elaine Rayner 34178 Hamilton 10 52.38%
19 Thomas Freeman-Greene 51590 Auckland 10 52.34%
20 Thelma Burd 32380 Hamilton 10 52.23%
20 Duncan White 18466 Hamilton 10 52.23%
22 Hilda Burgess 24313 Victoria 5 51.76%
23 Diana Easson 36412 Invercargill 5 51.54%
24 Mark Bendall 37685 Rotorua 7 51.32%
25 Robert Gibbons 6885 Auckland 5 50.90%
26 Arch Jelley 18787 Mt Albert 11 50.82%
27 Robyn Chalmers 15778 Auckland 8 50.40%
28 Bruce Cousins 30185 Howick 11 50.39%
29 Leonie Pritchard 37028 Rotorua 8 50.35%
30 Susan Wedde 20104 Auckland 6 50.32%
31 Marie Ewbank 6081 Auckland 9 50.09%
32 Kerri McCrae 3653 Auckland 17 49.82%
33 Lee Moselen 40370 Auckland 5 49.73%
34 Chris Curreen 37962 Waiheke 5 49.63%
35 William Leach 4318 Mt Albert 12 49.30%
36 Juliet Golightly 50811 Whangarei 5 49.27%
37 Nigel Hewitson 34402 Auckland 5 48.78%
38 Tricia Bayley 8064 Otaki 9 48.55%
39 Kay Cunneen 33641 Christchurch 6 48.45%
40 Laurie Hinchcliff 2064 North Shore 7 48.45%
41 Robin Hardley 3748 Auckland 18 48.44%
42 Anna Wall 4702 Auckland 9 48.34%
43 Margaret Harkness 7844 Auckland 6 48.20%
44 Rex Green 25371 Christchurch 5 48.08%
45 Lynda Bateman 60047 Levin 9 47.94%
46 Alan Brame 52604 Auckland 5 47.85%
47 Rae Cameron 22165 East Coast Bays 8 47.64%
 
Junior Ladder
Rank Name Number Club Played Average1
1 A♠ Sara Worth 3548 None 27 53.46%
2 A♥ Thomas Freeman-Greene 51590 Auckland 10 52.34%
3 A♦ Juliet Golightly 50811 Whangarei 5 49.27%
4 A♣ Alan Brame 52604 Auckland 5 47.85%
5 K♠ Neil Horsfield 51562 Auckland 8 47.29%
6 K♥ Judy Anderson 26797 Howick 5 46.88%
7 K♦ Paula McTaggart 52641 Auckland 22 46.77%
8 K♣ Helen Smith 51563 Auckland 6 46.08%
9 Q♠ Bryan Travers 46325 Howick 7 45.34%
10 Q♥ Elizabeth Gollan 51587 Auckland 14 45.12%
 
 
Statistics for all boards:
Percentage when declarer: (16286) 50.80%
  ... percentage that made: (10615 of 16286) 65.18%
  ... when Opener holds at least 16 hcp: (3613) 50.15%
  ... when opened but most didn't: (551) 51.74%
  ... when Opener preempted: (1998) 51.57%
  ... was preempted when most didn't: (773) 51.70%
  ... when Declarer is distributional3: (2366 hands) 50.91%
  ... when in a unique contract: (3777) 45.01%
Percentage score when on opening lead: (16372) 49.21%
  ... when leading from a sequence4: (2274) 49.26%
  ... when leading trumps4: (447) 46.34%
  ... when trumps was the only right lead4: (13/239)
  ... when leading a singleton4: (953) 52.17%
  ... when leading a doubleton4: (724) 53.83%
  ... when leading passively4: (3760) 49.55%
  ... when leading actively4: (8127) 48.40%
Highest HCP: ♠ AK7 ♥ AK7 ♦ AQ5 ♣ AQ97 [link] (26 hcp)
Freakiest Hand: ♠ - ♥ KJ10986543 ♦ - ♣ J1097 [link] (6.5)
Beer cards won: (32)
 
 
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♠ Rineke Mansell 29 34 85.29%
2 A♥ Caroline Jones 40 48 83.33%
3 A♦ Pip Duncan 28 34 82.35%
4 A♣ John Cullen 27 33 81.82%
5 K♠ Bruce Marr 21 26 80.77%
6 K♥ Patrick Carter 70 87 80.46%
7 K♦ Dan Dyett 27 34 79.41%
8 K♣ Derek Bartosh 73 92 79.35%
9 Q♠ Ray Kingston 34 43 79.07%
10 Q♥ Susan Steedman 63 80 78.75%
11 Q♦ Mike Dunn 103 131 78.63%
12 Q♣ Lynne Perkins 22 28 78.57%
13 J♠ Nathan Tucker 21 27 77.78%
13 J♠ Pamela Dravitzki 28 36 77.78%
13 J♠ Tony Quinlivan 21 27 77.78%
16 J♣ Robyn Freeman-Greene 31 40 77.50%
17 Robert Gibbons 27 35 77.14%
18 Rona Driscoll 85 111 76.58%
19 Marie Ewbank 39 51 76.47%
20 John Khouri 51 67 76.12%
21 Rachael Goffin 89 117 76.07%
22 Nigel Hewitson 19 25 76.00%
23 Roger Minchin 22 29 75.86%
24 Anu Turnbull 31 41 75.61%
25 Liz Ware 86 114 75.44%
26 Steph Jacob 21 28 75.00%
26 Cynthia Singh 30 40 75.00%
26 Marilyn Jackson 24 32 75.00%
29 Anthony Wilson 53 71 74.65%
30 Gay Bradbury 86 116 74.14%
31 Chris Turner 20 27 74.07%
32 Jillian Ramsey 91 123 73.98%
33 Rosa Mishkin 51 69 73.91%
34 Md Faisal Alam 36 49 73.47%
35 Paula Boughey 58 79 73.42%
36 Susan Rowe 41 56 73.21%
37 John Driscoll 76 104 73.08%
37 Jessica Morris 19 26 73.08%
37 Christine Haronga 19 26 73.08%
37 Jane Stearns 19 26 73.08%
41 Margaret Harkness 27 37 72.97%
42 Peter Ramsey 99 136 72.79%
43 Sylvester Riddell 77 106 72.64%
44 Pam Nunn 21 29 72.41%
45 Jill Church 55 76 72.37%
46 Lucian Gabriel 34 47 72.34%
47 Graham Wakefield 26 36 72.22%
48 Pam Bannatyne 23 32 71.88%
48 Alan Currie 23 32 71.88%
48 Ian Clayton 92 128 71.88%
 
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♠ Bruce Marr 26 +0.54
2 A♥ John Cullen 33 +0.33
3 A♦ Steph Jacob 28 +0.32
4 A♣ Leslie Watt 62 +0.24
5 K♠ Alan Dormer 35 +0.20
6 K♥ Christine Haronga 26 +0.15
7 K♦ Patrick Carter 87 +0.15
8 K♣ Jessica Morris 26 +0.12
9 Q♠ Jerry Chen 54 +0.11
10 Q♥ Russell Watt 90 +0.10
11 Q♦ Lachie Shea 47 +0.09
12 Q♣ Sylvester Riddell 106 +0.08
13 J♠ Graham Wakefield 36 +0.08
14 J♥ Joy Watkinson 49 +0.08
15 J♦ Andrew Michl 50 +0.08
15 J♦ Kevin Hu 25 +0.08
17 Cheryl Parsons 27 +0.07
18 Peter Goffin 75 +0.07
19 Allan Morris 72 +0.06
20 Katherine Griffith 45 +0.04
21 Derek Bartosh 92 +0.04
21 Jennifer Perkins 69 +0.04
23 Thomas Freeman-Greene 70 +0.04
24 Nola Clark 51 +0.04
25 Nathan Tucker 27 +0.04
26 Chris Fleming 141 +0.04
27 Rachael Goffin 117 +0.03
28 Kay Cunneen 31 +0.03
29 Mark Robertson 38 +0.03
30 Ray Kingston 43 +0.02
31 John Buckleton 196 +0.01
32 John Sylvester 46 +0.00
32 Duncan White 87 +0.00
32 Mike Dunn 131 +0.00
32 Robert Gibbons 35 +0.00
32 Rebecca Osborne 52 +0.00
32 Mike Newton 26 +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♠ Virginia Stuart 51 +0.67
1 A♠ Carolyn Guthrie 51 +0.67
3 A♦ Maureen Piper 46 +0.61
4 A♣ Jana Bott 54 +0.56
5 K♠ Monica Cheng 27 +0.52
5 K♠ Melroy Decouto 27 +0.52
7 K♦ Karen Palmer 36 +0.50
7 K♦ Max Morrison 32 +0.50
9 Q♠ Joanna Silk 85 +0.49
10 Q♥ Gopi Nayar 77 +0.48
11 Q♦ Sandy Wong 28 +0.46
12 Q♣ Kevin Hu 31 +0.45
13 J♠ Elaine Fisher 29 +0.45
13 J♠ Bruce Fisher 29 +0.45
15 J♦ Elizabeth Grieve 119 +0.45
16 J♣ Dawn Dowling 27 +0.44
17 Anu Turnbull 109 +0.44
17 Anne Reid 109 +0.44
19 Bruce Marr 75 +0.44
20 Candice Smith 41 +0.44
21 Jerry Chen 62 +0.44
22 Brenda Mauger 35 +0.43
23 Alan Dormer 63 +0.41
24 Paula Boughey 149 +0.41
25 Caroline Jones 76 +0.41
25 Bernard Lamusse 76 +0.41
27 Tony Quinlivan 47 +0.40
28 Lee Merlini 57 +0.40
29 Laura Pierce 40 +0.40
29 Rebecca Osborne 90 +0.40
31 Lynn Hall 28 +0.39
32 Marilyn Jackson 67 +0.37
33 Alan Currie 62 +0.37
34 John Khouri 127 +0.37
35 Cynthia Clayton 252 +0.37
36 Anne Renwick 38 +0.37
36 Linda Farley 38 +0.37
38 Julie Atkinson 36 +0.36
39 Martin Riegel 53 +0.36
39 Casey Plunket 53 +0.36
41 Dennis Apperley 31 +0.35
42 Ann Mau 51 +0.35
43 Clare Cryer 57 +0.35
44 Geoff Eyles 40 +0.35
45 Alan Brame 109 +0.35
46 Ray Kingston 127 +0.35
47 Les Gould 26 +0.35
47 Kevin Turner 26 +0.35
47 Linda Couch 26 +0.35
50 Graham Wakefield 55 +0.35
  
Contract Success
This table shows declarer's success in various contracts.
ContractFrequency% MadeAverage Score
1♠XX 2 100.00% 100.00%
2NX 2 100.00% 100.00%
7♣ 2 50.00% 75.00%
6♣ 53 71.70% 62.66%
7♥ 7 71.43% 61.43%
6♥X 13 46.15% 61.11%
4N 42 85.71% 61.07%
6♥ 123 72.36% 60.15%
7N 6 66.67% 60.00%
1♥ 61 77.05% 58.63%
3NX 9 55.56% 55.64%
6N 119 62.18% 55.57%
1♠ 97 80.41% 55.55%
2♥ 954 71.28% 55.43%
2♠ 1197 75.44% 54.70%
1N 934 72.48% 54.60%
6♠ 136 63.97% 54.45%
2♣X 8 37.50% 53.23%
4♣ 159 51.57% 52.85%
Pass 86 100.00% 52.57%
3N 2678 69.38% 52.35%
4♥ 1774 69.45% 52.21%
4♠ 2071 70.84% 52.19%
6♦ 53 62.26% 51.81%
5♥ 174 61.49% 51.65%
 
Passed Out 86 100.00% 52.57%
Part Score 7869 64.98% 50.64%
Game+ 8417 65.37% 50.95%
Slam 518 63.51% 55.78%
Grand Slam 25 52.00% 52.21%
Doubled 705 20.85% 37.70%
Redoubled 9 44.44% 46.67%
  
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♠ Susan Wedde 24 27 88.89%
2 A♥ Anita Thirtle 22 25 88.00%
3 A♦ Liz Ware 80 92 86.96%
4 A♣ Susan Steedman 46 54 85.19%
5 K♠ Juliet Golightly 22 26 84.62%
6 K♥ Leslie Watt 48 57 84.21%
7 K♦ Susan Rowe 37 44 84.09%
8 K♣ Nicky Bowers 95 113 84.07%
9 Q♠ Peter Hensman 26 31 83.87%
10 Q♥ Susan Macken 60 72 83.33%
10 Q♥ Mark Robertson 25 30 83.33%
12 Q♣ Sandra Pearce 23 28 82.14%
13 J♠ Lucie Armstrong 32 39 82.05%
14 J♥ Sharon Mosley 31 38 81.58%
15 J♦ Steph Benfell 22 27 81.48%
15 J♦ Dale Lacey 22 27 81.48%
15 Nigel Hewitson 22 27 81.48%
18 Carol Joseph 87 107 81.31%
19 Allan Morris 34 42 80.95%
20 Lynne Perkins 21 26 80.77%
21 Arch Jelley 46 57 80.70%
22 Malcolm Smith 54 67 80.60%
23 Paula McTaggart 96 120 80.00%
23 Pam Nunn 20 25 80.00%
23 Kay Cunneen 20 25 80.00%
26 Kathryn Brookes 39 49 79.59%
27 Rineke Mansell 27 34 79.41%
28 Felicity Hannay 73 92 79.35%
29 John Khouri 34 43 79.07%
30 Md Faisal Alam 41 52 78.85%
31 Tony Winters 26 33 78.79%
32 Margaret Harkness 22 28 78.57%
33 Anne Gelb 39 50 78.00%
34 Thelma Burd 28 36 77.78%
35 Janet Barnard 76 98 77.55%
36 Bruce Inglis 24 31 77.42%
36 Rebecca Osborne 24 31 77.42%
38 Elizabeth Grieve 34 44 77.27%
39 Cheryl Winsor 44 57 77.19%
40 Trish Murphy 71 92 77.17%
41 Peter Mclean 27 35 77.14%
42 Douglas Russell 64 83 77.11%
43 Laurie Hinchcliff 30 39 76.92%
43 Jana Bott 20 26 76.92%
45 Dan Dyett 23 30 76.67%
46 Carla Salinger 26 34 76.47%
47 Elaine Rayner 29 38 76.32%
48 Marie Ewbank 38 50 76.00%
48 Jackie Taylor 19 25 76.00%
48 Ronald Evans 19 25 76.00%
  
Opening Bid Success Rates
This table shows the average outcome for each opening bid for the opening side.
OpeningCountFrequencyAverage Result
1♣ 3336 20.49% 50.27%
1♦ 2828 17.37% 49.88%
1♥ 2316 14.22% 50.49%
1♠ 2527 15.52% 49.94%
1N 2653 16.29% 51.28%
2♣ 282 1.73% 52.36%
2♦ 658 4.04% 51.06%
2♥ 400 2.46% 51.56%
2♠ 493 3.03% 51.32%
2N 215 1.32% 52.26%
3♣ 126 0.77% 52.40%
3♦ 104 0.64% 50.18%
3♥ 183 1.12% 52.10%
3♠ 45 0.28% 49.64%
3N 9 0.06% 45.65%
4♣ 5 0.03% 44.29%
4♦ 11 0.07% 44.78%
4♥ 58 0.36% 52.87%
4♠ 29 0.18% 49.90%
5♣ 4 0.02% 43.18%
5♦ 2 0.01% 50.00%
6♠ 1 0.01% 56.67%
 

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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