🇸🇬 LAM Cheng Yen · SINGAPORE

89rank
-26.5Butler · 240 bds
-0.11per board
±4.5swing
-0.45vs par /bd · #109/139
-0.15adjusted /bd
Butler per round: 3.8 -24.1 -9 5.6 1 -13.4 25.9 -31.4 -5.9 34.8 5.3 12.3 -22.1 -13.3 4by round

vs par split: bidding -0.48 · play +0.03

Strength of schedule: opponents averaged -0.04/bd (an average draw) → opponent-adjusted -0.15/bd

Card play — on target: opening leads 66.7% #139 of 139 · declarer play 75.4% #62 of 139 · defence 82.6% #118 of 139

Card play by contract type — on target
vs NTvs a suit
Opening leads66.7% (15)66.7% (39)
Declarer play66.7% (21)80.6% (36)
Defence75.7% (37)85.7% (84)

Opening leads by suit led: ♠ 85.7% (14) · ♥ 78.6% (14) · ♦ 64.3% (14) · ♣ 33.3% (12)

vs par by strain: NT +0.41 (75) · a suit -0.84 (165)

vs par by level: part-score -0.88 (81) · game -0.22 (141) · slam -0.28 (18)

By role: declaring +0.07/bd (-2.13 vs par · 119) · defending -0.29/bd (+1.21 vs par · 121)

By vulnerability: vulnerable +0.12/bd (-0.23 vs par · 120) · not vulnerable -0.34/bd (-0.66 vs par · 120)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2W.TanF.Lahlou – S.DahanClosed16+3.8+0.24-1.94
Round 3W.TanM.Fleisher – C.MartelClosed16-24.1-1.51-0.62
Round 4W.TanM.Fourcaudot – F.PollackClosed16-9.0-0.56+0.69
Round 6W.TanA.Salah – B.RamadanClosed16+5.6+0.35+0.81
Round 7W.TanK.Buras – G.NarkiewiczOpen16+1.0+0.06+2.00
Round 10W.TanK.Anklesaria – R.TewariOpen16-13.4-0.84-2.88
Round 12W.TanC.Pellegrini – A.PejacsevichClosed16+25.9+1.62+1.75
Round 13W.TanC.Ju – Z.ShiOpen16-31.4-1.96-3.12
Round 14W.TanR.Van Prooijen – J.VerheesOpen16-5.9-0.37-2.00
Round 16W.TanD.Gerin – J.PelletierClosed16+34.8+2.17+2.69
Round 18W.TanA.Madala – G.DuboinClosed16+5.3+0.33-0.12
Round 19W.TanS.Suhendro – L.GonthaOpen16+12.3+0.77-0.12
Round 21W.TanA.Livgard – T.AaClosed16-22.1-1.38-2.56
Round 22W.TanD.Zen – S.WanOpen16-13.3-0.83-1.19
Round 23W.TanL.Milne – T.NunnOpen16+4.0+0.25-0.06

Every board — best Butler first↑ top

vs par = IMPs this pair scored above (+) or below (−) the board’s double-dummy par — what bidding and play (theirs and the opponents’) added or gave away against perfect play.

ButlerRoundOpponentsBdContractLeadResvs par
+12.8Round 14🇳🇱 NETHERLANDS255♥x♦K-4+12
+12.4Round 16🇬🇵 GUADELOUPE276♠♦A-1+14
+10.7Round 3🇺🇸 USA 2133NT♦2=+10
+10.4Round 21🇳🇴 NORWAY13NT♣3=+11
+10.3Round 12🇦🇷 ARGENTINA195♦x♣Q-2+9
+9.7Round 23🇦🇺 AUSTRALIA141♠x♠8-3+3
+8.7Round 19🇮🇩 INDONESIA163NT♣2=+10
+8.7Round 22🇭🇰 CHINA HONG KONG287♥♥7=+0
+8.6Round 23🇦🇺 AUSTRALIA43NT♥3+1+11
+8.5Round 21🇳🇴 NORWAY144♥♦A=+7
+8.3Round 16🇬🇵 GUADELOUPE254♠x♥A=+10
+8.2Round 19🇮🇩 INDONESIA83NT♥6+1+7
+8.1Round 6🇪🇬 EGYPT306♥♦8-2+11
+7.9Round 2🇲🇦 MOROCCO286♠♣A=+0
+7.9Round 4🇨🇦 CANADA294♠♥K-1+13
+7.6Round 16🇬🇵 GUADELOUPE204♥♦J-2+8
+7.3Round 21🇳🇴 NORWAY123NT♦Q-1+6
+6.9Round 10🇮🇳 INDIA294♠♦8-2+8
+6.9Round 23🇦🇺 AUSTRALIA105♣♥K-1+12
+6.7Round 19🇮🇩 INDONESIA44♥♣5-1+12
+6.3Round 16🇬🇵 GUADELOUPE183NT♥7=+0
+6.1Round 4🇨🇦 CANADA283NT♠2-1+5
+5.9Round 6🇪🇬 EGYPT243♣♣Q=+11
+5.4Round 18🇮🇹 ITALY293NT♣3+2+0
+5.3Round 12🇦🇷 ARGENTINA273NT♥7-1+10
+5.2Round 2🇲🇦 MOROCCO323NT♣Q-2+7
+5.2Round 16🇬🇵 GUADELOUPE194♠♥8=+0
+4.7Round 7🇵🇱 POLAND62♠♦5-2+6
+4.7Round 13🇨🇳 CHINA34♠♦K-1+5
+4.7Round 22🇭🇰 CHINA HONG KONG313NT♠6-1+12
+4.6Round 7🇵🇱 POLAND133NT♠2-2+8
+4.4Round 7🇵🇱 POLAND93NT♦K+1+0
+4.3Round 16🇬🇵 GUADELOUPE213NT♠4-1+6
+4.3Round 22🇭🇰 CHINA HONG KONG183NT♠6-1+6
+4.2Round 6🇪🇬 EGYPT234♥♠Q-1+6
+4.1Round 3🇺🇸 USA 211NT♥Q=+6
+4.0Round 21🇳🇴 NORWAY92♦♥8-3+1
+3.8Round 2🇲🇦 MOROCCO213♥♠A+1+1
+3.8Round 6🇪🇬 EGYPT323NT♥4+3+1
+3.7Round 19🇮🇩 INDONESIA123NT♣J=+7
+3.7Round 23🇦🇺 AUSTRALIA153NT♥2-1+5
+3.6Round 10🇮🇳 INDIA201NT♥3+1-1
+3.6Round 12🇦🇷 ARGENTINA252♠♦2+1+11
+3.6Round 14🇳🇱 NETHERLANDS195♣♥10-2+0
+3.5Round 4🇨🇦 CANADA172♠♥6+1+0
+3.4Round 7🇵🇱 POLAND102♠♥4+1+10
+3.4Round 14🇳🇱 NETHERLANDS303NTx♣10-1+6
+3.3Round 4🇨🇦 CANADA211NT♦10+3+6
+3.1Round 18🇮🇹 ITALY314♥♠3=+0
+2.9Round 2🇲🇦 MOROCCO312♠♦A+1+1
+2.9Round 13🇨🇳 CHINA45♦♥A=-15
+2.9Round 18🇮🇹 ITALY231NT♦5-2+3
+2.8Round 12🇦🇷 ARGENTINA222♦♣5=+0
+2.8Round 16🇬🇵 GUADELOUPE261NT♠7=+5
+2.8Round 19🇮🇩 INDONESIA63NT♥3-1+4
+2.7Round 18🇮🇹 ITALY193NT♦6+2+2
+2.6Round 18🇮🇹 ITALY321NT♥9+1+0
+2.5Round 2🇲🇦 MOROCCO233NT♠2=+0
+2.5Round 4🇨🇦 CANADA254♥♠K+2+13
+2.5Round 12🇦🇷 ARGENTINA244♥♦K+1+0
+2.4Round 2🇲🇦 MOROCCO223NT♠10+1+1
+2.4Round 12🇦🇷 ARGENTINA262♠♥3=+1
+2.4Round 18🇮🇹 ITALY263NT♦K-2+8
+2.4Round 21🇳🇴 NORWAY54♥♦A+1+0
+2.3Round 6🇪🇬 EGYPT215♦♠3-1+8
+2.2Round 14🇳🇱 NETHERLANDS272♥♠2-2-1
+1.9Round 10🇮🇳 INDIA233NT♥3+2+0
+1.8Round 12🇦🇷 ARGENTINA283♦♠J=+5
+1.8Round 23🇦🇺 AUSTRALIA94♠♥2+1-12
+1.7Round 6🇪🇬 EGYPT253♥♣J-2+2
+1.7Round 16🇬🇵 GUADELOUPE231NT♣8-1+5
+1.6Round 7🇵🇱 POLAND73♥♠Q=+0
+1.6Round 7🇵🇱 POLAND124♥♦3-1+12
+1.6Round 10🇮🇳 INDIA197♦♦6=-2
+1.6Round 16🇬🇵 GUADELOUPE246♠♣A=+0
+1.5Round 18🇮🇹 ITALY204♠♦9+1+0
+1.4Round 7🇵🇱 POLAND14♥♦10-2-1
+1.4Round 7🇵🇱 POLAND45♣♥K-1+6
+1.4Round 14🇳🇱 NETHERLANDS314♥♠10=+0
+1.4Round 22🇭🇰 CHINA HONG KONG224♠♥A-1+8
+1.3Round 19🇮🇩 INDONESIA143NT♠K+4-14
+1.1Round 10🇮🇳 INDIA183♥♦K=+6
+1.1Round 22🇭🇰 CHINA HONG KONG303NT♥4+1+0
+1.0Round 12🇦🇷 ARGENTINA175♠x♣K-2+0
+1.0Round 18🇮🇹 ITALY184♥♣Q+1+0
+0.9Round 12🇦🇷 ARGENTINA201NT♣3-2+9
+0.9Round 23🇦🇺 AUSTRALIA12♥♠2+2-1
+0.8Round 3🇺🇸 USA 2144♠♣K-1+4
+0.8Round 18🇮🇹 ITALY171NT♠7-1-3
+0.8Round 19🇮🇩 INDONESIA71NT♣2+2+8
+0.8Round 23🇦🇺 AUSTRALIA22♦♦3=-1
+0.7Round 4🇨🇦 CANADA324♠♥5=+0
+0.7Round 12🇦🇷 ARGENTINA314♠♣9+1+0
+0.7Round 13🇨🇳 CHINA142♥x♠2-2+4
+0.7Round 18🇮🇹 ITALY303♦♣K-1+4
+0.7Round 23🇦🇺 AUSTRALIA32NT♠3-2+5
+0.7Round 23🇦🇺 AUSTRALIA66♠♥10+1+11
+0.6Round 6🇪🇬 EGYPT192♠♠J-2+2
+0.6Round 6🇪🇬 EGYPT224♠♣7-1-5
+0.5Round 2🇲🇦 MOROCCO263NT♥3+1+1
+0.5Round 6🇪🇬 EGYPT314♠♥Q=+1
+0.5Round 13🇨🇳 CHINA153♥♣J+1-1
+0.5Round 14🇳🇱 NETHERLANDS203♥♦A+1-1
+0.4Round 2🇲🇦 MOROCCO294♥♣A+1+0
+0.4Round 10🇮🇳 INDIA214♠♦Q+2-11
+0.4Round 12🇦🇷 ARGENTINA184♥♥J+1+0
+0.4Round 22🇭🇰 CHINA HONG KONG234♥♦9+1+0
+0.4Round 22🇭🇰 CHINA HONG KONG263♦♣3-1-1
+0.3Round 3🇺🇸 USA 2163NT♥3+2+0
+0.3Round 6🇪🇬 EGYPT203♠♥6+2+9
+0.3Round 7🇵🇱 POLAND154♠♥10=-1
+0.3Round 10🇮🇳 INDIA223♦♥3=-5
+0.3Round 18🇮🇹 ITALY252♣♥6=+2
+0.2Round 18🇮🇹 ITALY243NT♣2=+0
+0.2Round 19🇮🇩 INDONESIA151NT♦9+2+1
+0.1Round 2🇲🇦 MOROCCO254♠♥3-1-5
+0.1Round 4🇨🇦 CANADA204♠♠2+1+0
+0.1Round 4🇨🇦 CANADA234♥♦K=+13
+0.1Round 16🇬🇵 GUADELOUPE302♥♦5=+6
+0.1Round 19🇮🇩 INDONESIA13NT♠5+1+0
-0.0Round 3🇺🇸 USA 224♥♦9=+0
-0.0Round 3🇺🇸 USA 2114♠♣7+2-11
+0.0Round 22🇭🇰 CHINA HONG KONG324♥♣10=+0
-0.1Round 19🇮🇩 INDONESIA53NT♣10+1+0
-0.1Round 19🇮🇩 INDONESIA114♠♥J=+0
-0.2Round 13🇨🇳 CHINA84♥♣K+1+0
-0.2Round 14🇳🇱 NETHERLANDS324♠♦K+1+0
-0.2Round 19🇮🇩 INDONESIA104♠♦A-1-6
-0.3Round 3🇺🇸 USA 246♥♦J+1+13
-0.3Round 10🇮🇳 INDIA174♥♣9=+0
-0.4Round 4🇨🇦 CANADA261♥♠6+1-6
-0.4Round 6🇪🇬 EGYPT183NT♦6=-1
-0.4Round 10🇮🇳 INDIA283NT♥3+1-10
-0.4Round 10🇮🇳 INDIA322♥♥3-1+1
-0.4Round 14🇳🇱 NETHERLANDS214♠♣A+1-1
-0.4Round 21🇳🇴 NORWAY42♠♠3=+0
-0.5Round 7🇵🇱 POLAND82♥♦A-1+2
-0.5Round 14🇳🇱 NETHERLANDS261♦x♣9+2+2
-0.5Round 19🇮🇩 INDONESIA21NT♦6-1+2
-0.7Round 2🇲🇦 MOROCCO243NT♥Q+1-1
-0.7Round 12🇦🇷 ARGENTINA304♠♥K=-3
-0.7Round 18🇮🇹 ITALY274♥♦K+1+0
-0.8Round 12🇦🇷 ARGENTINA324♠♣K+1+0
-0.8Round 23🇦🇺 AUSTRALIA74♠♥7-1-6
-0.9Round 2🇲🇦 MOROCCO174♥♠A+2-1
-0.9Round 16🇬🇵 GUADELOUPE173♣♣K-2+0
-0.9Round 16🇬🇵 GUADELOUPE223NT♣8+1+0
-0.9Round 23🇦🇺 AUSTRALIA125♠♥3+1-1
-1.0Round 21🇳🇴 NORWAY31♣♣6-1-3
-1.1Round 3🇺🇸 USA 273NT♠7-1+6
-1.1Round 13🇨🇳 CHINA13♥♣3-1-4
-1.1Round 16🇬🇵 GUADELOUPE294♠♥K+1+0
-1.2Round 3🇺🇸 USA 2125♦♣K+1+13
-1.2Round 12🇦🇷 ARGENTINA295♥♠8+1-13
-1.2Round 13🇨🇳 CHINA61NT♠Q=-5
-1.2Round 22🇭🇰 CHINA HONG KONG293NT♦3+1-1
-1.4Round 10🇮🇳 INDIA243NT♦3-1-10
-1.4Round 12🇦🇷 ARGENTINA233NT♣2+1-1
-1.6Round 23🇦🇺 AUSTRALIA82♠♦A=+0
-1.7Round 10🇮🇳 INDIA314♥♠5-1-5
-1.7Round 12🇦🇷 ARGENTINA217♠♣2=+0
-1.7Round 14🇳🇱 NETHERLANDS294♥♠K+2-1
-1.8Round 3🇺🇸 USA 2154♠♥Q+1+0
-1.8Round 21🇳🇴 NORWAY82♠♦J=-5
-1.8Round 23🇦🇺 AUSTRALIA133♣x♥2-1-3
-2.0Round 4🇨🇦 CANADA314♥♦2+1+0
-2.0Round 13🇨🇳 CHINA114♠♦Q+1+0
-2.1Round 10🇮🇳 INDIA305♥♥3-1+2
-2.1Round 16🇬🇵 GUADELOUPE283♠x♠8-1+0
-2.2Round 7🇵🇱 POLAND163NT♥Q=+1
-2.3Round 14🇳🇱 NETHERLANDS283NT♠Q+2+0
-2.4Round 13🇨🇳 CHINA53NT♠Q+2+0
-2.4Round 13🇨🇳 CHINA133♠♣A-1-5
-2.5Round 2🇲🇦 MOROCCO183♦♣3+1+0
-2.5Round 6🇪🇬 EGYPT273♠♦2-1-5
-2.5Round 7🇵🇱 POLAND113NT♠3-2-6
-2.6Round 7🇵🇱 POLAND54♦♠K+1+8
-2.6Round 13🇨🇳 CHINA72♠♣K=-6
-2.7Round 2🇲🇦 MOROCCO273♣♣2+2-6
-2.7Round 6🇪🇬 EGYPT173♦♥7-2-8
-2.7Round 13🇨🇳 CHINA124♥♣5-1-5
-2.8Round 6🇪🇬 EGYPT284♠♣4+1-1
-2.8Round 13🇨🇳 CHINA164♠♥K+1+0
-2.9Round 21🇳🇴 NORWAY161NT♦6=+0
-2.9Round 22🇭🇰 CHINA HONG KONG273NT♦5+1-1
-3.0Round 3🇺🇸 USA 235♦♣5=-7
-3.0Round 7🇵🇱 POLAND143NT♥7=+0
-3.2Round 13🇨🇳 CHINA24♥♦2+2-1
-3.4Round 14🇳🇱 NETHERLANDS172♠♥10-2-5
-3.5Round 4🇨🇦 CANADA183♠♣8+2-7
-3.5Round 4🇨🇦 CANADA226♦♠A-4-8
-3.6Round 2🇲🇦 MOROCCO206♦♣2+1-13
-3.7Round 4🇨🇦 CANADA194♥♦A-2-11
-3.7Round 22🇭🇰 CHINA HONG KONG203NT♠2+3-13
-3.8Round 22🇭🇰 CHINA HONG KONG194♥♣10=+0
-3.8Round 22🇭🇰 CHINA HONG KONG253♠♥Q+1-10
-3.9Round 3🇺🇸 USA 282NT♥3=-6
-4.0Round 18🇮🇹 ITALY213♥♠2=-1
-4.0Round 21🇳🇴 NORWAY73♠♥K-3-14
-4.1Round 4🇨🇦 CANADA243NT♠3+1-4
-4.1Round 21🇳🇴 NORWAY133♦♦9+1+0
-4.3Round 18🇮🇹 ITALY225♣♥A-1-6
-4.3Round 19🇮🇩 INDONESIA33NT♥J+3-17
-4.3Round 22🇭🇰 CHINA HONG KONG216NT♣10=+0
-4.4Round 16🇬🇵 GUADELOUPE323NT♣5+1-1
-4.4Round 19🇮🇩 INDONESIA93♣♣2=-6
-4.5Round 21🇳🇴 NORWAY115♦♣6+2-11
-4.6Round 14🇳🇱 NETHERLANDS187♣♠A-2-11
-4.7Round 6🇪🇬 EGYPT264♠♣A=-10
-4.7Round 22🇭🇰 CHINA HONG KONG245♦x♠K-1-5
-5.1Round 14🇳🇱 NETHERLANDS231NT♦8+2-10
-5.3Round 14🇳🇱 NETHERLANDS224♥♣J-1-12
-5.5Round 2🇲🇦 MOROCCO192♠x♠7-1-5
-5.7Round 7🇵🇱 POLAND24♥♣J=+0
-5.8Round 23🇦🇺 AUSTRALIA164♠♦A-1-9
-5.9Round 3🇺🇸 USA 2105♥x♦K=-14
-5.9Round 7🇵🇱 POLAND33NT♦3-1-13
-6.0Round 2🇲🇦 MOROCCO303NT♦2-2-11
-6.0Round 4🇨🇦 CANADA274♥x♦K-2-5
-6.0Round 10🇮🇳 INDIA276♥♥3=+0
-6.1Round 16🇬🇵 GUADELOUPE314♥♣9-1-10
-6.2Round 21🇳🇴 NORWAY66♠♥8=+0
-6.3Round 14🇳🇱 NETHERLANDS243NT♥8-1-10
-6.6Round 3🇺🇸 USA 262♣♣2+3-1
-7.6Round 10🇮🇳 INDIA263♠♥3+1-10
-7.7Round 3🇺🇸 USA 256♠♦9-1-11
-7.7Round 21🇳🇴 NORWAY154♠♣7-1-10
-8.5Round 3🇺🇸 USA 292♦♠10=-12
-9.0Round 13🇨🇳 CHINA94♠♥2=-6
-9.2Round 23🇦🇺 AUSTRALIA52♦x♦3-4-5
-9.3Round 6🇪🇬 EGYPT294♥x♣8-1-8
-9.3Round 10🇮🇳 INDIA251♠x♥3-3-9
-9.3Round 18🇮🇹 ITALY286♥♥5-2-11
-9.7Round 23🇦🇺 AUSTRALIA111NTxx♣Q=-10
-9.9Round 22🇭🇰 CHINA HONG KONG173♠♣2+1-14
-10.0Round 4🇨🇦 CANADA306♣♠6=+2
-10.6Round 13🇨🇳 CHINA103NT♠3+2-11
-10.6Round 19🇮🇩 INDONESIA133NT♣5=-10
-10.7Round 21🇳🇴 NORWAY102♦♥J-1-11
-11.4Round 21🇳🇴 NORWAY22♥x♣A-6-12