🇭🇰 KOO Hor Yung Charmian · CHINA HONG KONG

60rank
+49.3Butler · 256 bds
+0.19per board
±4.5swing
+0.34vs par /bd · #36/140
+0.23adjusted /bd
Butler per round: 6.2 2.5 14.1 -0.7 2.5 9.6 -12.4 -2.7 -14.5 2.7 -22.4 0.9 29.4 5.7 5.3 23.1by round

vs par split: bidding +0.67 · play -0.33

Strength of schedule: opponents averaged +0.04/bd (an average draw) → opponent-adjusted +0.23/bd

Card play — on target: opening leads 85.5% #5 of 140 · declarer play 74.0% #60 of 140 · defence 82.0% #115 of 140

Card play by contract type — on target
vs NTvs a suit
Opening leads66.7% (12)90.7% (43)
Declarer play55.0% (20)81.1% (53)
Defence77.4% (31)83.3% (102)

Opening leads by suit led: ♠ 80.0% (10) · ♥ 94.1% (17) · ♦ 80.0% (10) · ♣ 83.3% (18)

vs par by strain: NT -0.74 (66) · a suit +0.72 (190)

vs par by level: part-score -0.26 (95) · game +0.29 (132) · slam +2.55 (29)

By role: declaring +0.12/bd (-2.22 vs par · 123) · defending +0.26/bd (+2.71 vs par · 133)

By vulnerability: vulnerable +0.14/bd (+0.17 vs par · 128) · not vulnerable +0.25/bd (+0.51 vs par · 128)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2W.WongJ.Wilkinson – S.NewtonOpen16+6.2+0.39-2.38
Round 3W.WongL.Menezes – A.VidigalOpen16+2.5+0.16+0.31
Round 5W.WongJ.Larsson – K.BertheauClosed16+14.1+0.88+1.88
Round 6W.WongS.Shi – J.StansbyOpen16-0.7-0.04+0.62
Round 8W.WongJ.Zochowska – V.ReessOpen16+2.5+0.16+1.44
Round 9W.WongA.Sharma – P.BatraClosed16+9.6+0.60+0.88
Round 11W.WongH.Kane – A.SymonsClosed16-12.4-0.78+0.31
Round 12W.WongH.Dawson – H.PittClosed16-2.7-0.17-0.50
Round 14W.WongC.Baldysz – S.BaldyszClosed16-14.5-0.91+1.12
Round 15W.WongA.Simons – J.PasmanOpen16+2.7+0.17+0.19
Round 17W.WongL.Deas – J.Seamon-MolsonOpen16-22.4-1.40-1.38
Round 18W.WongM.Sato – T.KahoOpen16+0.9+0.06+0.50
Round 19W.WongH.Baccar – N.SfarOpen16+29.4+1.84+2.69
Round 20W.WongM.Yang – V.LiuClosed16+5.7+0.36-1.81
Round 22W.WongN.Abid – S.PirzadaClosed16+5.3+0.33+1.31
Round 23W.WongD.Josa – P.HowardOpen16+23.1+1.44+0.25

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
+11.7Round 3🇧🇷 BRAZIL126♦♠J=+0
+11.4Round 23🇹🇹 TRINIDAD & TOBAGO96♠♣4-1+16
+11.0Round 19🇹🇳 TUNISIA56♣♥Q-2+11
+10.9Round 9🇮🇳 INDIA36♣♥8-2+13
+10.8Round 2🇳🇿 NEW ZEALAND314♠♥K=+11
+10.6Round 22🇵🇰 PAKISTAN292♣♣9+2+11
+10.1Round 5🇸🇪 SWEDEN156♥♥J-1+11
+10.1Round 19🇹🇳 TUNISIA145♦♠K-1+17
+9.8Round 11🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND95♦x♠K-3+9
+9.5Round 15🇳🇱 NETHERLANDS116♣♠A=-2
+9.3Round 12🇦🇺 AUSTRALIA246♥♦10-1+11
+9.0Round 2🇳🇿 NEW ZEALAND294♥x♣A+1+8
+9.0Round 18🇯🇵 JAPAN205♦♠A-2+10
+9.0Round 20🇹🇼 CHINESE TAIPEI202♦x♥7-3+5
+8.8Round 2🇳🇿 NEW ZEALAND176♦♠2=+9
+8.1Round 23🇹🇹 TRINIDAD & TOBAGO104♠♣J+1+1
+7.9Round 2🇳🇿 NEW ZEALAND303NTx♠K=+4
+7.8Round 3🇧🇷 BRAZIL56♣♥5-2+11
+7.6Round 22🇵🇰 PAKISTAN183NT♠5+1+11
+6.8Round 6🇺🇸 USA 1306♥♦3-1+11
+6.7Round 9🇮🇳 INDIA166♦♦6+1+1
+6.7Round 14🇵🇱 POLAND204♥♠5=+10
+6.7Round 19🇹🇳 TUNISIA162♠♣K-1+6
+6.5Round 3🇧🇷 BRAZIL105♥x♦K=+14
+6.3Round 11🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND134♠♣A-2+12
+6.2Round 5🇸🇪 SWEDEN134♠♦9-1+6
+6.1Round 20🇹🇼 CHINESE TAIPEI264♥♣K-1-1
+5.9Round 8🇫🇷 FRANCE225♦x♥10=+3
+5.6Round 23🇹🇹 TRINIDAD & TOBAGO164♠♣7-2+11
+5.2Round 19🇹🇳 TUNISIA123NT♦7-1+5
+5.1Round 5🇸🇪 SWEDEN124♠♥3+2+11
+4.9Round 14🇵🇱 POLAND224♥♣J-1+12
+4.8Round 18🇯🇵 JAPAN232♥♠Q-1+5
+4.7Round 15🇳🇱 NETHERLANDS63NT♥10=+7
+4.7Round 22🇵🇰 PAKISTAN205♣♠2+1+13
+4.6Round 12🇦🇺 AUSTRALIA294♥♠6+2+13
+4.4Round 9🇮🇳 INDIA124♠x♣5-2+0
+4.4Round 22🇵🇰 PAKISTAN263♠♦K-1+6
+4.4Round 23🇹🇹 TRINIDAD & TOBAGO44♠♥A-1+5
+4.3Round 5🇸🇪 SWEDEN34♠♥10-1+12
+4.3Round 9🇮🇳 INDIA141NT♠Q+1+7
+4.3Round 11🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND82♥♠Q=+6
+4.3Round 15🇳🇱 NETHERLANDS122♦♦10=+5
+4.0Round 3🇧🇷 BRAZIL33NT♣3=+7
+4.0Round 8🇫🇷 FRANCE316NT♠8=+0
+4.0Round 20🇹🇼 CHINESE TAIPEI234♠♦10=+0
+3.9Round 5🇸🇪 SWEDEN84♥♣A=+0
+3.9Round 19🇹🇳 TUNISIA83NT♣J-1+5
+3.8Round 20🇹🇼 CHINESE TAIPEI274♥♣A+2+1
+3.7Round 8🇫🇷 FRANCE246♦♣6=+0
+3.7Round 8🇫🇷 FRANCE254♠♣Q=+0
+3.5Round 18🇯🇵 JAPAN302NT♣7=+1
+3.2Round 6🇺🇸 USA 1294♥♣8=+10
+3.2Round 18🇯🇵 JAPAN171NT♠5=+6
+3.0Round 6🇺🇸 USA 1203NT♣K-1+12
+3.0Round 15🇳🇱 NETHERLANDS24♥♠Q=-1
+3.0Round 18🇯🇵 JAPAN321♥♦A=+5
+3.0Round 19🇹🇳 TUNISIA104♠x♦A-1+8
+3.0Round 23🇹🇹 TRINIDAD & TOBAGO143NT♦4-1+10
+2.8Round 17🇺🇸 USA 2155♥♠Q+1+14
+2.8Round 22🇵🇰 PAKISTAN273NT♠J=+0
+2.6Round 3🇧🇷 BRAZIL143♠♣A=+1
+2.6Round 12🇦🇺 AUSTRALIA192NT♦6-2+3
+2.6Round 12🇦🇺 AUSTRALIA224♥♦4-1+5
+2.6Round 18🇯🇵 JAPAN212♥♣2=+0
+2.5Round 17🇺🇸 USA 283♥♠8+1-7
+2.5Round 19🇹🇳 TUNISIA23♠♦8-2+0
+2.4Round 8🇫🇷 FRANCE213♥♠A=+1
+2.3Round 15🇳🇱 NETHERLANDS132♠♥K+1+10
+2.3Round 18🇯🇵 JAPAN252♠♣8+2+1
+2.2Round 5🇸🇪 SWEDEN102♠♥K+2+10
+2.1Round 5🇸🇪 SWEDEN143NT♣6-2+6
+2.1Round 11🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND124♠♠J+2-13
+2.0Round 9🇮🇳 INDIA93NT♥K+1-1
+2.0Round 20🇹🇼 CHINESE TAIPEI242♠♥5-1-2
+1.9Round 23🇹🇹 TRINIDAD & TOBAGO73♠♥7-1+6
+1.8Round 2🇳🇿 NEW ZEALAND212♠♦A-1-3
+1.8Round 17🇺🇸 USA 293NT♠4=+0
+1.8Round 22🇵🇰 PAKISTAN252♠♥Q+2+10
+1.8Round 23🇹🇹 TRINIDAD & TOBAGO13♥♣K=+0
+1.7Round 14🇵🇱 POLAND172♠♥10-1+4
+1.7Round 15🇳🇱 NETHERLANDS43♦♠A=+0
+1.7Round 15🇳🇱 NETHERLANDS83♦♥A-1-2
+1.7Round 18🇯🇵 JAPAN313♥♦3+1+6
+1.6Round 6🇺🇸 USA 1183NT♥A+2+1
+1.6Round 17🇺🇸 USA 224♠♥K-1+5
+1.5Round 22🇵🇰 PAKISTAN324♥♣10=+0
+1.5Round 23🇹🇹 TRINIDAD & TOBAGO151♠♥3=-1
+1.4Round 20🇹🇼 CHINESE TAIPEI285♠♦K+1-12
+1.3Round 2🇳🇿 NEW ZEALAND244♠♣J+2+1
+1.3Round 15🇳🇱 NETHERLANDS11NT♣K+1+7
+1.3Round 15🇳🇱 NETHERLANDS153♥♣Q+1+1
+1.3Round 19🇹🇳 TUNISIA133NT♠A-1-5
+1.3Round 20🇹🇼 CHINESE TAIPEI182NT♣3=+5
+1.3Round 22🇵🇰 PAKISTAN286NT♣7+1+11
+1.2Round 14🇵🇱 POLAND293NT♦8+2+0
+1.1Round 11🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND163NT♥9+2+2
+1.0Round 2🇳🇿 NEW ZEALAND263NT♥5+1+1
+1.0Round 3🇧🇷 BRAZIL93♣♠A+1+11
+1.0Round 6🇺🇸 USA 1215♦♠3-1+8
+1.0Round 6🇺🇸 USA 1325♣♦A=-2
+1.0Round 14🇵🇱 POLAND283NT♦J+1-1
+1.0Round 19🇹🇳 TUNISIA13NT♠5+3+2
+0.9Round 6🇺🇸 USA 1173♠♦K=-7
+0.9Round 12🇦🇺 AUSTRALIA175♠♣A-2+5
+0.9Round 12🇦🇺 AUSTRALIA304♠♥K=+3
+0.9Round 17🇺🇸 USA 2144♥♠Q+1+0
+0.8Round 8🇫🇷 FRANCE174♣♠K=+0
+0.8Round 11🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND11NT♠2=+1
+0.7Round 5🇸🇪 SWEDEN162♠♣5=+0
+0.7Round 8🇫🇷 FRANCE272♥♥2=+0
+0.7Round 9🇮🇳 INDIA84♠♥2+1+0
+0.6Round 8🇫🇷 FRANCE295♦♥9=+13
+0.6Round 19🇹🇳 TUNISIA94♣♦K-1+2
+0.5Round 3🇧🇷 BRAZIL65♣♥3-2-5
+0.5Round 5🇸🇪 SWEDEN94♠♦A+1+1
+0.5Round 12🇦🇺 AUSTRALIA233NT♣4=+0
+0.5Round 14🇵🇱 POLAND193♣♦K=+5
+0.5Round 14🇵🇱 POLAND214♠♦8+1+1
+0.4Round 19🇹🇳 TUNISIA71NT♥4+1-9
+0.4Round 23🇹🇹 TRINIDAD & TOBAGO83NT♠K-1-2
+0.4Round 23🇹🇹 TRINIDAD & TOBAGO124♠♦3+2+1
+0.3Round 8🇫🇷 FRANCE262♠♦J+2-1
+0.3Round 9🇮🇳 INDIA24♠♦6+3+10
+0.3Round 22🇵🇰 PAKISTAN224♠♥A-3-3
+0.2Round 6🇺🇸 USA 1224♠♥3-1-5
+0.2Round 9🇮🇳 INDIA56♠♦8+1+11
+0.2Round 11🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND52♦♣A=-11
+0.2Round 14🇵🇱 POLAND324♠♦A+1+0
+0.1Round 3🇧🇷 BRAZIL163NT♣J+1+1
+0.1Round 6🇺🇸 USA 1193♦♠3+2+1
+0.1Round 12🇦🇺 AUSTRALIA201NT♣K-2-9
+0.1Round 20🇹🇼 CHINESE TAIPEI213NT♠J=+0
+0.0Round 3🇧🇷 BRAZIL84♣♠9-1+3
-0.0Round 5🇸🇪 SWEDEN61NT♣3-2+2
+0.0Round 8🇫🇷 FRANCE323NT♠5+1+0
+0.0Round 9🇮🇳 INDIA12♠♣3-1-2
-0.0Round 12🇦🇺 AUSTRALIA324♠♥3+1+0
-0.0Round 15🇳🇱 NETHERLANDS56♠♣A=+0
+0.0Round 18🇯🇵 JAPAN274♥♦J=-1
+0.0Round 19🇹🇳 TUNISIA64♦♠10=+1
-0.1Round 2🇳🇿 NEW ZEALAND254♠♣2-1-5
-0.1Round 3🇧🇷 BRAZIL46♥♣10+1-13
-0.2Round 2🇳🇿 NEW ZEALAND182NT♥4+1-1
-0.2Round 8🇫🇷 FRANCE204♠♥Q+1-1
-0.2Round 9🇮🇳 INDIA101NT♠5+1-1
-0.2Round 12🇦🇺 AUSTRALIA184♥♣6+1+0
-0.2Round 20🇹🇼 CHINESE TAIPEI311NT♠6+1+0
-0.3Round 6🇺🇸 USA 1253♠♥7=+0
-0.3Round 11🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND112NT♦3=+1
-0.3Round 19🇹🇳 TUNISIA151NT♦10+1+0
-0.3Round 23🇹🇹 TRINIDAD & TOBAGO66♠♥7+1-11
-0.4Round 8🇫🇷 FRANCE304NT♠10+1-1
-0.4Round 11🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND32♥x♥2-1-5
-0.4Round 14🇵🇱 POLAND314♥♠10=+0
-0.4Round 20🇹🇼 CHINESE TAIPEI304♥♦2+1+0
-0.5Round 19🇹🇳 TUNISIA114♠♥J=+0
-0.7Round 8🇫🇷 FRANCE234♥♠3+3+12
-0.7Round 15🇳🇱 NETHERLANDS163♠♥5=-1
-0.8Round 3🇧🇷 BRAZIL24♥♦10=+0
-0.8Round 18🇯🇵 JAPAN184♥♣A=+1
-0.9Round 17🇺🇸 USA 2113♥♦A-1-2
-0.9Round 22🇵🇰 PAKISTAN234♥♠7+2-1
-1.0Round 6🇺🇸 USA 1233♥♠Q=+0
-1.0Round 22🇵🇰 PAKISTAN304♠♣8=+0
-1.1Round 11🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND23♣♦A+1+0
-1.1Round 23🇹🇹 TRINIDAD & TOBAGO23♦♣6=+1
-1.1Round 23🇹🇹 TRINIDAD & TOBAGO32NT♠3-2-5
-1.2Round 9🇮🇳 INDIA112♥♣5+1-6
-1.3Round 5🇸🇪 SWEDEN53NT♦3=+1
-1.3Round 12🇦🇺 AUSTRALIA314♠♦5=+1
-1.3Round 18🇯🇵 JAPAN283NT♠3+2+0
-1.4Round 17🇺🇸 USA 273NT♠8+3-1
-1.5Round 17🇺🇸 USA 212♥♠3=-1
-1.6Round 17🇺🇸 USA 2123♥♣Q-2-11
-1.7Round 15🇳🇱 NETHERLANDS102♥♠2+1+0
-1.7Round 20🇹🇼 CHINESE TAIPEI292♥♠2+2+10
-1.8Round 5🇸🇪 SWEDEN114♠♥Q-2-5
-1.8Round 8🇫🇷 FRANCE182♠♣K=-5
-1.8Round 17🇺🇸 USA 253NT♦9-2-13
-1.9Round 2🇳🇿 NEW ZEALAND273♣♦5=-7
-1.9Round 11🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND43♦♣Q+2+10
-2.0Round 23🇹🇹 TRINIDAD & TOBAGO115♦♠3-2-6
-2.1Round 2🇳🇿 NEW ZEALAND321NT♦J+1+0
-2.1Round 6🇺🇸 USA 1314♠♥Q+3-2
-2.1Round 9🇮🇳 INDIA154♠♦A-2-8
-2.2Round 12🇦🇺 AUSTRALIA252♠♦5+1-11
-2.2Round 22🇵🇰 PAKISTAN245♠♣3+1-5
-2.3Round 5🇸🇪 SWEDEN42♠♦2=-6
-2.3Round 17🇺🇸 USA 233♣♠K-2+0
-2.3Round 17🇺🇸 USA 262♦♣A=-8
-2.3Round 17🇺🇸 USA 2132♣♥3+1+0
-2.4Round 15🇳🇱 NETHERLANDS93♣♠7=-8
-2.4Round 17🇺🇸 USA 2163♥♦10=+10
-2.4Round 18🇯🇵 JAPAN193NT♦8+2-2
-2.4Round 18🇯🇵 JAPAN264♥♦2-1-6
-2.4Round 22🇵🇰 PAKISTAN312NT♦9=-9
-2.6Round 6🇺🇸 USA 1273NT♠5-1-5
-2.6Round 14🇵🇱 POLAND271NT♥A+3-1
-2.6Round 20🇹🇼 CHINESE TAIPEI193♠♥A-2-6
-2.7Round 3🇧🇷 BRAZIL114♠♠3+2+11
-2.7Round 6🇺🇸 USA 1264♠♣A=-10
-2.7Round 12🇦🇺 AUSTRALIA283♦♥J=-5
-2.8Round 11🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND142♠♣3-1+2
-2.8Round 12🇦🇺 AUSTRALIA263♦♥5=-1
-2.8Round 20🇹🇼 CHINESE TAIPEI175♣x♥3-3-2
-2.8Round 23🇹🇹 TRINIDAD & TOBAGO53♦♠K+1-10
-3.1Round 6🇺🇸 USA 1284♠♠J+2-2
-3.1Round 11🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND75♦♦5-4-11
-3.4Round 3🇧🇷 BRAZIL11NT♠A-1-5
-3.4Round 3🇧🇷 BRAZIL73NT♠3-2-8
-3.4Round 14🇵🇱 POLAND185♣♠A=+2
-3.7Round 9🇮🇳 INDIA74♥♣7-2-13
-4.1Round 20🇹🇼 CHINESE TAIPEI253♥♣K-2-7
-4.2Round 9🇮🇳 INDIA46♠♥4+1+13
-4.2Round 9🇮🇳 INDIA134♠♦K+2-10
-4.2Round 14🇵🇱 POLAND303♦♣3-1-5
-4.2Round 20🇹🇼 CHINESE TAIPEI324♠x♣K-1-6
-4.3Round 9🇮🇳 INDIA63♠♥10=+0
-4.4Round 14🇵🇱 POLAND253♦♥3-3+0
-4.5Round 2🇳🇿 NEW ZEALAND284♥♦10+2-13
-4.6Round 14🇵🇱 POLAND262♠x♣A-1-9
-4.7Round 5🇸🇪 SWEDEN22♠♥Q+2-2
-4.8Round 12🇦🇺 AUSTRALIA273NT♦Q-1-10
-4.8Round 14🇵🇱 POLAND243NT♥Q=+0
-5.0Round 5🇸🇪 SWEDEN14♥♣3-2-11
-5.4Round 17🇺🇸 USA 243NT♣4-2-8
-5.6Round 2🇳🇿 NEW ZEALAND223NT♥10-1-10
-5.6Round 18🇯🇵 JAPAN293NT♣3+2+0
-5.7Round 2🇳🇿 NEW ZEALAND206♦♣2+1-13
-5.9Round 5🇸🇪 SWEDEN73NT♠3-1-6
-6.0Round 20🇹🇼 CHINESE TAIPEI225♣♠J-1-14
-6.5Round 11🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND104♥♠A=-9
-6.7Round 6🇺🇸 USA 1245♦♣A=+0
-6.7Round 15🇳🇱 NETHERLANDS143NT♥6+1-7
-6.7Round 22🇵🇰 PAKISTAN175♦x♣K+1+4
-6.8Round 2🇳🇿 NEW ZEALAND233♦♠8+1-10
-6.8Round 14🇵🇱 POLAND233NT♦9=+0
-6.8Round 18🇯🇵 JAPAN225♥♠A=-8
-7.2Round 19🇹🇳 TUNISIA36♦♥4=+13
-7.5Round 2🇳🇿 NEW ZEALAND193NT♥4-1-10
-7.5Round 22🇵🇰 PAKISTAN194♥♣2-1-10
-7.6Round 15🇳🇱 NETHERLANDS34♥♣3=+0
-7.9Round 8🇫🇷 FRANCE196♠♥3+1+13
-8.0Round 15🇳🇱 NETHERLANDS74♥♠2-1-6
-8.1Round 23🇹🇹 TRINIDAD & TOBAGO134♠x♥K-2-12
-8.3Round 19🇹🇳 TUNISIA44♥♣5-2-13
-8.6Round 8🇫🇷 FRANCE281NT♦A=-11
-9.0Round 22🇵🇰 PAKISTAN216NT♣10-1-17
-9.9Round 18🇯🇵 JAPAN246♦♣4-1-10
-10.1Round 17🇺🇸 USA 2106♥♠2=+0
-10.2Round 3🇧🇷 BRAZIL133NT♥9=-10
-10.2Round 11🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND156♦♠7=+11
-10.2Round 12🇦🇺 AUSTRALIA216♠♠6+1-13
-10.7Round 11🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND67♠♣K=+0
-11.1Round 3🇧🇷 BRAZIL156♣♥Q-1-13