🇸🇬 LAM Cheng Yen · SINGAPORE

98rank
-64.5Butler · 208 bds
-0.31per board
±4.3swing
-0.17vs par /bd · #82/130
-0.37adjusted /bd
Butler per round: -9.1 -4.6 -47.3 -28.1 -3.3 -20.9 17.5 4.1 14.7 -2.3 -7.5 16.4 5.9by round

vs par split: bidding -0.13 · play -0.04

Strength of schedule: opponents averaged -0.06/bd (an easy draw) → opponent-adjusted -0.37/bd

Card play — on target: opening leads 87.9% #10 of 130 · declarer play 71.4% #94 of 130 · defence 90.5% #31 of 130

Card play by contract type — on target
vs NTvs a suit
Opening leads80.0% (15)90.7% (43)
Declarer play66.7% (15)73.5% (34)
Defence85.7% (28)92.2% (77)

Opening leads by suit led: ♠ 78.6% (14) · ♥ 100.0% (12) · ♦ 76.9% (13) · ♣ 94.7% (19)

vs par by strain: NT +0.13 (54) · a suit -0.28 (154)

vs par by level: part-score +0.15 (73) · game -0.83 (117) · slam +2.78 (18)

By role: declaring -0.49/bd (-2.30 vs par · 103) · defending -0.13/bd (+1.91 vs par · 105)

By vulnerability: vulnerable -0.62/bd (+0.00 vs par · 104) · not vulnerable -0.00/bd (-0.35 vs par · 104)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1K.NgD.Gerin – I.RueClosed16-9.1-0.57+1.12
Round 2K.NgT.Nadim – M.HeshmatOpen16-4.6-0.29+0.94
Round 5K.NgJ.Upmark – P.CullinOpen16-47.3-2.96-3.50
Round 6K.NgD.Baxter – D.LindopOpen16-28.1-1.76-2.00
Round 7K.NgJ.Ahmed – T.MasoodClosed16-3.3-0.21+0.31
Round 9K.NgC.Gower – A.AptekerOpen16-20.9-1.31-0.94
Round 11K.NgR.Lian – H.ShiOpen16+17.5+1.09+1.38
Round 12K.NgV.Mihov – I.NanevOpen16+4.1+0.26+1.62
Round 13K.NgM.Fleisher – M.KamilOpen16+14.7+0.92+0.69
Round 15K.NgA.Sementa – G.DuboinClosed16-2.3-0.14-1.62
Round 17K.NgP.Newell – M.ReidClosed16-7.5-0.47-0.19
Round 18K.NgG.Chagas – M.AmaralOpen16+16.4+1.02-0.19
Round 19K.NgJ.Gosney – N.EdgttonClosed16+5.9+0.37+0.12

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
+15.1Round 13🇺🇸 USA 156NT♠A-1+14
+12.4Round 18🇧🇷 BRAZIL215♦x♥A=+13
+11.1Round 1🇬🇵 GUADELOUPE156NT♠6=+11
+11.0Round 19🇦🇺 AUSTRALIA36♠♦6-2+14
+8.2Round 12🇧🇬 BULGARIA234♠♣A+2+13
+8.2Round 15🇮🇹 ITALY126NT♦6=+0
+7.7Round 18🇧🇷 BRAZIL184♥♦4=+0
+7.6Round 11🇨🇳 CHINA16♥♠A=+11
+7.4Round 7🇵🇰 PAKISTAN12♥x♠8-3+9
+7.2Round 13🇺🇸 USA 1133♥♣Q-3-7
+6.9Round 15🇮🇹 ITALY165♥♦5-2+0
+6.8Round 19🇦🇺 AUSTRALIA43NT♣3=+0
+6.7Round 12🇧🇬 BULGARIA266♣♠Q-1+13
+6.6Round 5🇸🇪 SWEDEN33♣♥6+1+7
+6.6Round 9🇿🇦 SOUTH AFRICA66♥♣2=+0
+6.4Round 19🇦🇺 AUSTRALIA54♠x♠3-2+11
+6.2Round 17🇳🇿 NEW ZEALAND164NT♥7+3+10
+5.9Round 2🇪🇬 EGYPT304♠♣Q-2+9
+5.7Round 1🇬🇵 GUADELOUPE52NT♠4+2+10
+5.7Round 12🇧🇬 BULGARIA182♦x♦5-2+8
+5.6Round 11🇨🇳 CHINA84♠♣K-1+5
+5.3Round 2🇪🇬 EGYPT194♠x♥A=+5
+4.9Round 7🇵🇰 PAKISTAN134♠♦J-1+12
+4.9Round 18🇧🇷 BRAZIL261NT♣K-2+10
+4.9Round 18🇧🇷 BRAZIL283NT♣J-1+12
+4.4Round 9🇿🇦 SOUTH AFRICA124♠♣J-1+12
+4.4Round 12🇧🇬 BULGARIA214♠♥A-1+6
+4.3Round 11🇨🇳 CHINA33NT♦J-1+12
+4.2Round 18🇧🇷 BRAZIL316NT♠5=+0
+4.0Round 13🇺🇸 USA 1143♣♦7=+0
+3.4Round 9🇿🇦 SOUTH AFRICA103NT♦2+3+13
+3.3Round 7🇵🇰 PAKISTAN104♥♣J=+0
+3.3Round 12🇧🇬 BULGARIA194♠x♥K-2+4
+3.3Round 18🇧🇷 BRAZIL242NT♠3-2+6
+3.2Round 1🇬🇵 GUADELOUPE101NT♥Q-2+9
+2.9Round 5🇸🇪 SWEDEN153♠♠5-2+2
+2.9Round 17🇳🇿 NEW ZEALAND102♥♥6=+6
+2.8Round 6🇨🇦 CANADA173NT♣K-1+5
+2.8Round 7🇵🇰 PAKISTAN111NT♦4-2+0
+2.8Round 19🇦🇺 AUSTRALIA93NT♠8+2+1
+2.7Round 2🇪🇬 EGYPT225♠♣K-1+5
+2.6Round 15🇮🇹 ITALY14♠♣8-1+4
+2.5Round 11🇨🇳 CHINA53♣♣A+1+1
+2.4Round 2🇪🇬 EGYPT266♥♦7+1+2
+2.4Round 11🇨🇳 CHINA103♠♦10+1+1
+2.4Round 13🇺🇸 USA 195♣x♥2-1+6
+2.4Round 17🇳🇿 NEW ZEALAND44♥♥2+1+4
+2.2Round 9🇿🇦 SOUTH AFRICA113NT♥Q+1+0
+2.1Round 1🇬🇵 GUADELOUPE85♣♥J=-11
+2.1Round 11🇨🇳 CHINA64♠♦Q=+7
+2.1Round 11🇨🇳 CHINA112♥♦4+2+2
+2.0Round 2🇪🇬 EGYPT173NT♣10-2+5
+2.0Round 6🇨🇦 CANADA324♠♣Q+2+11
+2.0Round 15🇮🇹 ITALY134♠♥J-1-1
+2.0Round 17🇳🇿 NEW ZEALAND54♠♣4+1+0
+1.8Round 11🇨🇳 CHINA133♠♦6=+6
+1.6Round 7🇵🇰 PAKISTAN84♥♦A+2-11
+1.6Round 19🇦🇺 AUSTRALIA63♦♦3=+0
+1.4Round 7🇵🇰 PAKISTAN34♥♠4-1+5
+1.4Round 12🇧🇬 BULGARIA174♥♣K-1+4
+1.4Round 19🇦🇺 AUSTRALIA151NT♣7+1-1
+1.3Round 2🇪🇬 EGYPT252♠♣8+2+10
+1.3Round 18🇧🇷 BRAZIL204♠♦5+1+0
+1.3Round 19🇦🇺 AUSTRALIA23♥♦J-3+5
+1.2Round 15🇮🇹 ITALY144♦♥J=+1
+1.2Round 19🇦🇺 AUSTRALIA104♠♥A-1+6
+1.1Round 9🇿🇦 SOUTH AFRICA73NT♣4=+10
+1.0Round 7🇵🇰 PAKISTAN74♦♥A-2+0
+1.0Round 13🇺🇸 USA 161♠♥10+2+1
+0.9Round 1🇬🇵 GUADELOUPE135♣♦2=+13
+0.9Round 17🇳🇿 NEW ZEALAND14♥♠2+2+2
+0.7Round 13🇺🇸 USA 123♥♣10-1+5
+0.7Round 19🇦🇺 AUSTRALIA83♥♣J-2+7
+0.6Round 9🇿🇦 SOUTH AFRICA94♠♦2-1-12
+0.5Round 11🇨🇳 CHINA93NT♦Q+3-11
+0.4Round 2🇪🇬 EGYPT244♥♠6+1+0
+0.4Round 6🇨🇦 CANADA222♥♦Q+1+0
+0.4Round 12🇧🇬 BULGARIA273NT♥4-1+5
+0.4Round 19🇦🇺 AUSTRALIA134♥♠4=+1
+0.3Round 2🇪🇬 EGYPT324♠♥3=+0
+0.3Round 7🇵🇰 PAKISTAN61NT♣2-1-5
+0.3Round 9🇿🇦 SOUTH AFRICA24♠♦6=+0
+0.3Round 12🇧🇬 BULGARIA294♠♣A=+1
+0.3Round 17🇳🇿 NEW ZEALAND22♣♥A-1+1
+0.2Round 13🇺🇸 USA 1113NT♠5=+0
+0.2Round 17🇳🇿 NEW ZEALAND32♦♦4-1+4
+0.1Round 13🇺🇸 USA 1124♠♥3+1+0
+0.1Round 15🇮🇹 ITALY115♠♠4=+0
-0.0Round 6🇨🇦 CANADA194♠♣J=+1
+0.0Round 6🇨🇦 CANADA203NT♠9-2-7
-0.0Round 7🇵🇰 PAKISTAN24♠♦3-1-5
+0.0Round 13🇺🇸 USA 1154♠♦A=+0
-0.0Round 15🇮🇹 ITALY74♥♥5=+3
+0.0Round 18🇧🇷 BRAZIL223♥♣K-2-1
-0.0Round 18🇧🇷 BRAZIL274♥♦6+3+2
-0.0Round 18🇧🇷 BRAZIL294♠♣Q+1+0
-0.1Round 1🇬🇵 GUADELOUPE24♠♣J=-3
-0.1Round 5🇸🇪 SWEDEN24♠♥2+1+0
-0.1Round 7🇵🇰 PAKISTAN53♠♥A-1-1
-0.3Round 1🇬🇵 GUADELOUPE71NT♥5+2+10
-0.3Round 9🇿🇦 SOUTH AFRICA13♣♠6=+0
-0.3Round 11🇨🇳 CHINA74♥♥10+1+0
-0.3Round 12🇧🇬 BULGARIA313♥♣K-1+2
-0.4Round 2🇪🇬 EGYPT294♥♠5+1+0
-0.4Round 5🇸🇪 SWEDEN53NT♦5+2+0
-0.4Round 6🇨🇦 CANADA263NT♥J+3-13
-0.4Round 12🇧🇬 BULGARIA322♠♦7=+0
-0.4Round 15🇮🇹 ITALY33NT♠6+1+1
-0.5Round 2🇪🇬 EGYPT234♠♣10+1+0
-0.5Round 17🇳🇿 NEW ZEALAND135♣x♥A-1+0
-0.6Round 7🇵🇰 PAKISTAN146♠♣K=+0
-0.6Round 9🇿🇦 SOUTH AFRICA143♥♣6+1+1
-0.6Round 11🇨🇳 CHINA143♠♦10=-1
-0.7Round 5🇸🇪 SWEDEN61NT♦8+1+0
-0.7Round 6🇨🇦 CANADA184♥♠10+1+0
-0.7Round 9🇿🇦 SOUTH AFRICA153NT♦7+2+0
-0.7Round 13🇺🇸 USA 1102♥♦A+2+10
-0.8Round 15🇮🇹 ITALY65♦♥6=+2
-0.9Round 6🇨🇦 CANADA236♠♣10+1-1
-0.9Round 6🇨🇦 CANADA283NT♥5=+0
-0.9Round 11🇨🇳 CHINA41NT♦7+1-1
-0.9Round 11🇨🇳 CHINA154♥♣Q=+1
-0.9Round 15🇮🇹 ITALY43NT♥K-1-6
-1.0Round 12🇧🇬 BULGARIA253NT♥2=-2
-1.0Round 15🇮🇹 ITALY155♥♠7=-4
-1.0Round 17🇳🇿 NEW ZEALAND62♣♠A=+2
-1.0Round 19🇦🇺 AUSTRALIA121NTx♠3-1-5
-1.1Round 13🇺🇸 USA 1164♠♦9+1+0
-1.2Round 13🇺🇸 USA 113NT♥2=-2
-1.3Round 6🇨🇦 CANADA252♠♣K+2-1
-1.3Round 15🇮🇹 ITALY92♣♦K-1-2
-1.4Round 1🇬🇵 GUADELOUPE13♥♣Q-1+2
-1.4Round 2🇪🇬 EGYPT285♦♣10=-1
-1.4Round 17🇳🇿 NEW ZEALAND85♣♦3+1-11
-1.5Round 1🇬🇵 GUADELOUPE145♣♦2+1-11
-1.5Round 6🇨🇦 CANADA302♣♣6+1-5
-1.5Round 13🇺🇸 USA 174♠♥3+1+0
-1.6Round 11🇨🇳 CHINA123♥♠Q+1-1
-1.6Round 12🇧🇬 BULGARIA243NT♠Q+1+0
-1.7Round 12🇧🇬 BULGARIA304♠♦K-2-5
-1.7Round 15🇮🇹 ITALY83♦♦4-1-4
-1.9Round 17🇳🇿 NEW ZEALAND115♦♥5=-3
-2.0Round 1🇬🇵 GUADELOUPE31♠♥10+2+0
-2.0Round 6🇨🇦 CANADA294♠♦5+2+9
-2.0Round 12🇧🇬 BULGARIA203NT♠10+2-1
-2.0Round 13🇺🇸 USA 134♦♠K=-1
-2.0Round 18🇧🇷 BRAZIL304♥♣10+2-11
-2.1Round 5🇸🇪 SWEDEN72♥♣K+1-10
-2.2Round 2🇪🇬 EGYPT273♠♥K=+0
-2.2Round 5🇸🇪 SWEDEN92♥♦J+1-1
-2.2Round 13🇺🇸 USA 142♥♣5-1-5
-2.4Round 2🇪🇬 EGYPT212♥♣10=+0
-2.5Round 7🇵🇰 PAKISTAN121♠♦8-1-4
-2.5Round 17🇳🇿 NEW ZEALAND151NT♥6=-5
-2.6Round 17🇳🇿 NEW ZEALAND123NT♥Q-1-10
-2.8Round 1🇬🇵 GUADELOUPE113NT♠5+1-1
-2.8Round 18🇧🇷 BRAZIL171NT♦4-3-2
-2.9Round 5🇸🇪 SWEDEN43NT♥A=+0
-3.0Round 2🇪🇬 EGYPT182♥♦3=-6
-3.0Round 18🇧🇷 BRAZIL193NT♠K-1-12
-3.1Round 1🇬🇵 GUADELOUPE46♦♠6=+0
-3.1Round 11🇨🇳 CHINA163NT♠Q+4-10
-3.2Round 9🇿🇦 SOUTH AFRICA162♠♥4-1+1
-3.3Round 5🇸🇪 SWEDEN83NT♥Q-4-2
-3.3Round 5🇸🇪 SWEDEN114NT♦3+1-1
-3.3Round 5🇸🇪 SWEDEN134♠♣10+1-17
-3.3Round 18🇧🇷 BRAZIL253♦♥A=-5
-3.4Round 6🇨🇦 CANADA214♠♣Q-2-6
-3.5Round 7🇵🇰 PAKISTAN42♥♠4+2+8
-3.6Round 7🇵🇰 PAKISTAN164♦♣7+1+1
-3.7Round 17🇳🇿 NEW ZEALAND93NT♥6=+1
-3.8Round 1🇬🇵 GUADELOUPE123♥♣7-3-2
-3.8Round 5🇸🇪 SWEDEN16♠♠5+1+11
-3.8Round 15🇮🇹 ITALY103♣♠Q-1-6
-3.9Round 2🇪🇬 EGYPT204♠♣A=-3
-4.0Round 1🇬🇵 GUADELOUPE96NT♥5=+0
-4.0Round 9🇿🇦 SOUTH AFRICA44♠♣2-2-3
-4.0Round 11🇨🇳 CHINA25♣♣10=+0
-4.0Round 15🇮🇹 ITALY54♥♦J=-3
-4.1Round 9🇿🇦 SOUTH AFRICA134♥♦4+1-4
-4.1Round 19🇦🇺 AUSTRALIA76♣♣5=+0
-4.3Round 6🇨🇦 CANADA243♣♥Q=+0
-4.3Round 17🇳🇿 NEW ZEALAND142NT♥4=-5
-4.4Round 19🇦🇺 AUSTRALIA163♥♥2-1-12
-4.5Round 17🇳🇿 NEW ZEALAND73♣♦5=+1
-4.6Round 7🇵🇰 PAKISTAN155♦♥4=+5
-5.1Round 5🇸🇪 SWEDEN144♠♦2-2-11
-5.4Round 18🇧🇷 BRAZIL235♦x♥2=-4
-5.8Round 18🇧🇷 BRAZIL324♥♦K=-11
-5.8Round 19🇦🇺 AUSTRALIA116♠♦K+1-11
-5.9Round 1🇬🇵 GUADELOUPE166♣♥K=-3
-5.9Round 5🇸🇪 SWEDEN102♠♥7-2-7
-5.9Round 19🇦🇺 AUSTRALIA144♥x♥6-2-5
-6.5Round 19🇦🇺 AUSTRALIA13♣♦7-6-9
-6.6Round 9🇿🇦 SOUTH AFRICA54♥♦A=-10
-6.9Round 6🇨🇦 CANADA315♥x♥5-4-11
-7.2Round 1🇬🇵 GUADELOUPE64♠x♥K+1-6
-7.3Round 13🇺🇸 USA 185♥♦Q+2-10
-8.1Round 9🇿🇦 SOUTH AFRICA86♣♦4-1-11
-9.0Round 5🇸🇪 SWEDEN164♥♣K-1-13
-9.2Round 12🇧🇬 BULGARIA284♥♦2-1-10
-9.4Round 15🇮🇹 ITALY23NT♥5+2-11
-10.1Round 12🇧🇬 BULGARIA224♥♣4=-12
-11.0Round 6🇨🇦 CANADA273NT♦Q-2-14
-11.1Round 2🇪🇬 EGYPT313NT♠7-4-11
-11.1Round 7🇵🇰 PAKISTAN93♥x♠3-3-9
-11.9Round 9🇿🇦 SOUTH AFRICA35♦♠Q-1-12
-14.7Round 5🇸🇪 SWEDEN122♠x♥9-5-14