🇭🇰 LUNG Ka-Cheung · CHINA HONG KONG

27rank
+92.6Butler · 224 bds
+0.41per board
±4.5swing
+0.99vs par /bd · #3/129
+0.26adjusted /bd
Butler per round: 21.5 -4.6 -18.5 14.1 19.5 0.2 1.3 29.8 27.5 -24.5 -3.3 16 13.5 0.1by round

vs par split: bidding +0.75 · play +0.23

Strength of schedule: opponents averaged -0.15/bd (an easy draw) → opponent-adjusted +0.26/bd

Card play — on target: opening leads 80.0% #62 of 129 · declarer play 89.4% #1 of 129 · defence 84.2% #89 of 129

Card play by contract type — on target
vs NTvs a suit
Opening leads66.7% (12)83.3% (48)
Declarer play80.0% (10)91.9% (37)
Defence75.0% (24)87.0% (77)

Opening leads by suit led: ♠ 87.5% (8) · ♥ 73.7% (19) · ♦ 85.7% (14) · ♣ 78.9% (19)

vs par by strain: NT +0.06 (48) · a suit +1.20 (175)

vs par by level: part-score +0.81 (88) · game +0.80 (120) · slam +3.07 (15)

By role: declaring +0.53/bd (-0.69 vs par · 122) · defending +0.27/bd (+3.00 vs par · 102)

By vulnerability: vulnerable +0.78/bd (+1.52 vs par · 112) · not vulnerable +0.05/bd (+0.46 vs par · 112)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1P.ChunP.Grenthe – P.VanhoutteClosed16+21.5+1.34+3.50
Round 2P.ChunJ.Romanski – A.KowalskiClosed16-4.6-0.29+1.12
Round 4P.ChunY.Nakamura – M.HirataOpen16-18.5-1.16-0.56
Round 5P.ChunD.Piafsky – F.HofferOpen16+14.1+0.88+2.06
Round 7P.ChunY.Mondon – G.VignaOpen16+19.5+1.22+0.50
Round 8P.ChunJ.Silva Neto – A.MagalhaesClosed16+0.2+0.01+1.88
Round 10P.ChunV.Lal – A.VaidyaOpen16+1.3+0.08-0.81
Round 12P.ChunF.Hamilton – A.FisherOpen16+29.8+1.86+0.69
Round 14P.ChunA.El Askalani – M.GhamrawyClosed16+27.5+1.72+2.06
Round 15P.ChunB.Strater – U.KratzOpen16-24.5-1.53-0.56
Round 16P.ChunG.Mooney – M.MonsegurOpen16-3.3-0.21-0.75
Round 18P.ChunG.Bhayat – M.MazharOpen16+16.0+1.00+2.62
Round 20P.ChunT.Rusev – S.DarakchievOpen16+13.5+0.84+1.88
Round 21P.ChunJ.Moers – S.FabbricatoreOpen16+0.1+0.01+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
+14.0Round 12🇺🇸 USA 1266♥♠Q=+13
+13.9Round 21🇬🇵 GUADELOUPE163♣x♦A-5+14
+13.5Round 7🇷🇪 REUNION133♣x♠K-4+10
+13.0Round 12🇺🇸 USA 1235♣x♠7=+11
+11.2Round 7🇷🇪 REUNION83NT♦4-3+15
+10.1Round 12🇺🇸 USA 1194♠♥3=+11
+9.9Round 1🇫🇷 FRANCE136♣♠7-1+17
+9.8Round 14🇪🇬 EGYPT274♥♠9+1+8
+9.5Round 15🇩🇪 GERMANY72♥♣K+2+8
+9.4Round 1🇫🇷 FRANCE113NT♥2-1+10
+9.0Round 20🇧🇬 BULGARIA315♦x♠A-2+12
+8.9Round 18🇵🇰 PAKISTAN261NTx♣A-3+5
+8.6Round 10🇮🇳 INDIA182♠♥J+3+9
+8.1Round 5🇨🇦 CANADA24♥♠6-1+8
+8.0Round 20🇧🇬 BULGARIA324♥♣5=+14
+7.8Round 1🇫🇷 FRANCE166♣♠5-1+13
+7.7Round 8🇧🇷 BRAZIL253♣♦J-2+11
+7.3Round 18🇵🇰 PAKISTAN233NT♥5=+0
+7.2Round 14🇪🇬 EGYPT294♥x♠K-1+10
+6.7Round 4🇯🇵 JAPAN323NT♦2=-1
+6.6Round 10🇮🇳 INDIA263NT♥6+1+0
+6.5Round 16🇦🇷 ARGENTINA175♥♠8+1+14
+6.3Round 1🇫🇷 FRANCE66♠♥A-1+11
+6.0Round 1🇫🇷 FRANCE34♠♥10=+10
+5.9Round 10🇮🇳 INDIA254♥♠K=+3
+5.2Round 18🇵🇰 PAKISTAN215♥♦A+1+9
+5.0Round 5🇨🇦 CANADA163♣x♥4-1+11
+5.0Round 15🇩🇪 GERMANY54♥♦J+1+4
+4.9Round 8🇧🇷 BRAZIL292♥♣J=+6
+4.9Round 15🇩🇪 GERMANY132♠♥J+2+7
+4.9Round 20🇧🇬 BULGARIA224♠♥6=+10
+4.6Round 8🇧🇷 BRAZIL195♥♦2=+11
+4.6Round 20🇧🇬 BULGARIA234♥♠5=+3
+4.5Round 14🇪🇬 EGYPT283♦♥K-1+6
+4.4Round 4🇯🇵 JAPAN225♥♠A+1-3
+4.2Round 5🇨🇦 CANADA154♥x♦3-1+6
+4.1Round 21🇬🇵 GUADELOUPE123♦♣A=+0
+4.0Round 7🇷🇪 REUNION155♦♠4+1-5
+4.0Round 18🇵🇰 PAKISTAN242♥♦K+1+0
+4.0Round 20🇧🇬 BULGARIA243NT♠10=+0
+3.7Round 5🇨🇦 CANADA144♠♦Q-1+10
+3.7Round 14🇪🇬 EGYPT194♥♥6-1+10
+3.5Round 7🇷🇪 REUNION123NT♣4-2+5
+3.5Round 7🇷🇪 REUNION163♥♦6-1+2
+3.5Round 14🇪🇬 EGYPT244♣♠K=+6
+3.4Round 2🇵🇱 POLAND183♣♣3+1+0
+3.3Round 5🇨🇦 CANADA43NT♥2=+0
+3.2Round 10🇮🇳 INDIA303♦♠4=+5
+3.2Round 16🇦🇷 ARGENTINA233♠♣Q=+0
+3.1Round 2🇵🇱 POLAND173NT♣9-2+5
+3.1Round 4🇯🇵 JAPAN273NT♣2+4+10
+3.0Round 1🇫🇷 FRANCE102♥♥7+1+10
+2.8Round 8🇧🇷 BRAZIL244♥♥3=+0
+2.8Round 12🇺🇸 USA 1304♠♦A-2+5
+2.7Round 5🇨🇦 CANADA16♠♥6+1-11
+2.7Round 10🇮🇳 INDIA192♠♥4-1+4
+2.7Round 10🇮🇳 INDIA215♦♥Q=+0
+2.7Round 15🇩🇪 GERMANY123NT♥6+1+11
+2.6Round 21🇬🇵 GUADELOUPE153♠♣A-1-2
+2.5Round 8🇧🇷 BRAZIL201♦♣6+3+10
+2.4Round 2🇵🇱 POLAND266♥♥J+1+2
+2.4Round 12🇺🇸 USA 1245♣♠Q=-1
+2.4Round 18🇵🇰 PAKISTAN252♦♠6+1+5
+2.3Round 2🇵🇱 POLAND252♠♣8+1+10
+2.3Round 2🇵🇱 POLAND304♠♣K-1+8
+2.3Round 4🇯🇵 JAPAN303♦♥A+3+6
+2.2Round 12🇺🇸 USA 1183NT♦K=-2
+2.1Round 7🇷🇪 REUNION146♠♥5+1+1
+2.1Round 8🇧🇷 BRAZIL263♦♠6=+0
+2.1Round 21🇬🇵 GUADELOUPE112♣♠5=+6
+1.9Round 15🇩🇪 GERMANY15♦♠A-2+0
+1.7Round 1🇫🇷 FRANCE85♣♦7+1-11
+1.7Round 2🇵🇱 POLAND213♥♣K-1+4
+1.7Round 18🇵🇰 PAKISTAN18Pass+9
+1.6Round 14🇪🇬 EGYPT233♦♠6+1+0
+1.6Round 14🇪🇬 EGYPT253♣♥K-1-2
+1.4Round 8🇧🇷 BRAZIL173♥♠4-2+5
+1.4Round 16🇦🇷 ARGENTINA183NT♥J-2+7
+1.3Round 5🇨🇦 CANADA72♥♣K+2+10
+1.3Round 7🇷🇪 REUNION73NT♥5-4+5
+1.3Round 18🇵🇰 PAKISTAN305♥♠K+1+11
+1.2Round 14🇪🇬 EGYPT262♥♦5-1+0
+1.2Round 16🇦🇷 ARGENTINA285♣♠A=+0
+1.2Round 20🇧🇬 BULGARIA303♣♠10+1+0
+1.0Round 5🇨🇦 CANADA92♥♦J=+0
+1.0Round 7🇷🇪 REUNION43♥♣A+1-8
+1.0Round 10🇮🇳 INDIA273NT♦7+2+1
+1.0Round 10🇮🇳 INDIA324♣♦7-1-6
+1.0Round 12🇺🇸 USA 1203NT♠4=-1
+1.0Round 14🇪🇬 EGYPT314♥♠Q=+0
+1.0Round 21🇬🇵 GUADELOUPE44♥♠A+1+4
+0.9Round 14🇪🇬 EGYPT182♠♦J+1+0
+0.9Round 15🇩🇪 GERMANY114♠♥8=+1
+0.9Round 16🇦🇷 ARGENTINA303NT♥3+1-11
+0.9Round 18🇵🇰 PAKISTAN194♥♠10-1+12
+0.8Round 8🇧🇷 BRAZIL183NT♥J+1+0
+0.8Round 16🇦🇷 ARGENTINA251NT♥5-1-2
+0.7Round 1🇫🇷 FRANCE153NT♠6+2+0
+0.7Round 2🇵🇱 POLAND283NT♥6+2+1
+0.7Round 21🇬🇵 GUADELOUPE92♠♣7+1+8
+0.6Round 10🇮🇳 INDIA203♠♠J=+8
+0.6Round 12🇺🇸 USA 1213♣♦Q-1-6
+0.6Round 20🇧🇬 BULGARIA284♠♦K=+6
+0.5Round 7🇷🇪 REUNION24♠♦Q-1+5
+0.5Round 10🇮🇳 INDIA241NT♣Q+2+0
+0.5Round 18🇵🇰 PAKISTAN294♠♣Q+1+0
+0.4Round 2🇵🇱 POLAND324♠♥A=+0
+0.4Round 8🇧🇷 BRAZIL223NT♠5+2+0
+0.3Round 4🇯🇵 JAPAN244♠♥4+1+0
+0.3Round 5🇨🇦 CANADA34♠♥A=+0
+0.3Round 5🇨🇦 CANADA53NT♦5+2+0
+0.3Round 14🇪🇬 EGYPT214♥♣A=+0
+0.3Round 16🇦🇷 ARGENTINA225♣♠7+1-13
+0.3Round 20🇧🇬 BULGARIA291NT♣J+1+0
+0.2Round 20🇧🇬 BULGARIA252♦♠K-1-1
+0.1Round 15🇩🇪 GERMANY33NT♠6+1-1
+0.1Round 16🇦🇷 ARGENTINA324♠♦J+1+0
+0.0Round 4🇯🇵 JAPAN314♠♣A=+0
+0.0Round 15🇩🇪 GERMANY165♦x♠4-1+7
-0.0Round 20🇧🇬 BULGARIA213NT♥10+2+0
+0.0Round 21🇬🇵 GUADELOUPE143NT♠J+2+0
-0.1Round 4🇯🇵 JAPAN252♦♣J+1+0
-0.1Round 16🇦🇷 ARGENTINA194♠♣6=+1
-0.1Round 21🇬🇵 GUADELOUPE72♠♥Q+1+0
-0.2Round 1🇫🇷 FRANCE143NT♥4+3-10
-0.2Round 2🇵🇱 POLAND244♥♣Q+1+0
-0.2Round 7🇷🇪 REUNION112♠♦9-1+2
-0.2Round 12🇺🇸 USA 1294♠♣K=-1
-0.3Round 2🇵🇱 POLAND234♠♣K+1+0
-0.3Round 2🇵🇱 POLAND273♥♦A-1+3
-0.3Round 4🇯🇵 JAPAN261NT♦K=-2
-0.3Round 15🇩🇪 GERMANY91NT♥K+1-1
-0.4Round 1🇫🇷 FRANCE25♠♠3=-4
-0.4Round 8🇧🇷 BRAZIL282♦♠J-2+1
-0.4Round 21🇬🇵 GUADELOUPE133♣♠3=-1
-0.5Round 4🇯🇵 JAPAN294♠♥Q+2+13
-0.5Round 5🇨🇦 CANADA102♥♠7-1+0
-0.5Round 5🇨🇦 CANADA135♠♣10=+17
-0.5Round 18🇵🇰 PAKISTAN223♥♣2-2+1
-0.6Round 14🇪🇬 EGYPT174♠♥3+2-11
-0.6Round 21🇬🇵 GUADELOUPE55♦♣8+2+11
-0.7Round 12🇺🇸 USA 1254♠♠2+1+0
-0.8Round 12🇺🇸 USA 1283NT♣4+1+0
-0.8Round 18🇵🇰 PAKISTAN274♥♦6+3-2
-0.9Round 7🇷🇪 REUNION53♥♥9=+0
-1.0Round 14🇪🇬 EGYPT322♥♣A+1+7
-1.0Round 16🇦🇷 ARGENTINA314♥♣K=-1
-1.0Round 18🇵🇰 PAKISTAN321NT♠K+1+6
-1.1Round 2🇵🇱 POLAND225♣x♠A-1+0
-1.1Round 7🇷🇪 REUNION61NT♥4=+1
-1.1Round 18🇵🇰 PAKISTAN204♠♥8+1+0
-1.2Round 5🇨🇦 CANADA115♣♣10=-1
-1.3Round 1🇫🇷 FRANCE71NT♣2+3+9
-1.3Round 18🇵🇰 PAKISTAN173♠♦4-1-2
-1.5Round 12🇺🇸 USA 1273NT♥4-1-5
-1.5Round 16🇦🇷 ARGENTINA274♥♣3-1-5
-1.5Round 21🇬🇵 GUADELOUPE86♠♠3=+0
-1.7Round 4🇯🇵 JAPAN183♥♠J=-7
-1.8Round 1🇫🇷 FRANCE122♠♥2=+0
-1.9Round 14🇪🇬 EGYPT305♥x♠A-3-2
-2.0Round 7🇷🇪 REUNION34♥♣5-1-5
-2.0Round 12🇺🇸 USA 1223♥x♣4-1+5
-2.0Round 14🇪🇬 EGYPT204♥♦10+1+0
-2.1Round 2🇵🇱 POLAND204♥♠9=-3
-2.1Round 21🇬🇵 GUADELOUPE23NT♠10+3-13
-2.2Round 20🇧🇬 BULGARIA174♦♣Q+1-6
-2.3Round 14🇪🇬 EGYPT222♥♣4=+1
-2.3Round 16🇦🇷 ARGENTINA242♠♦10=+0
-2.4Round 20🇧🇬 BULGARIA203♠♦A=+0
-2.5Round 8🇧🇷 BRAZIL313♥♠K-1-4
-2.5Round 16🇦🇷 ARGENTINA212♠♥K+1-11
-2.6Round 20🇧🇬 BULGARIA274♠x♣A-1+0
-2.7Round 4🇯🇵 JAPAN195♠♥3+1-9
-2.8Round 1🇫🇷 FRANCE14♥♥3-1+2
-2.8Round 15🇩🇪 GERMANY142♠♦9+2-2
-2.9Round 2🇵🇱 POLAND294♥♦4+1+0
-3.0Round 2🇵🇱 POLAND313♦♥2+1+0
-3.0Round 4🇯🇵 JAPAN213♦♥6+2-1
-3.0Round 15🇩🇪 GERMANY102♦♦6+2+0
-3.0Round 16🇦🇷 ARGENTINA203♥♠A-2+9
-3.0Round 16🇦🇷 ARGENTINA292♥♥6=+0
-3.1Round 21🇬🇵 GUADELOUPE14♠♠2-2-6
-3.3Round 1🇫🇷 FRANCE53NT♦Q+2-1
-3.3Round 5🇨🇦 CANADA84♠♦K-2-6
-3.3Round 12🇺🇸 USA 1323♠x♦7-1-5
-3.3Round 20🇧🇬 BULGARIA193NT♠9+3-2
-3.3Round 21🇬🇵 GUADELOUPE34♥♦7=+1
-3.4Round 12🇺🇸 USA 1173♣♥7+1-6
-3.5Round 10🇮🇳 INDIA285♦x♦J-2+5
-3.7Round 8🇧🇷 BRAZIL323NT♥5=+1
-3.8Round 8🇧🇷 BRAZIL276♥♠9+1+11
-3.8Round 10🇮🇳 INDIA233♠♥5-1-6
-3.8Round 20🇧🇬 BULGARIA264♠♣5+1-1
-4.0Round 8🇧🇷 BRAZIL211NT♥9+1-5
-4.0Round 21🇬🇵 GUADELOUPE103♠♥4-2-8
-4.1Round 5🇨🇦 CANADA62NT♦8-1-5
-4.1Round 7🇷🇪 REUNION94♠♣6-1-10
-4.3Round 16🇦🇷 ARGENTINA266♠♥J=+0
-4.4Round 4🇯🇵 JAPAN283NT♣5-2-5
-4.4Round 12🇺🇸 USA 1313♠♥7+1-7
-4.5Round 10🇮🇳 INDIA175♦♣K-1-10
-4.6Round 4🇯🇵 JAPAN234♥♠Q-1-6
-4.8Round 8🇧🇷 BRAZIL303♠♥K=-7
-4.8Round 18🇵🇰 PAKISTAN283NT♣J-1-12
-5.0Round 20🇧🇬 BULGARIA184♠x♥K-1-5
-5.1Round 10🇮🇳 INDIA314♥♣J=+0
-5.4Round 10🇮🇳 INDIA222♠x♦A-1-14
-5.7Round 1🇫🇷 FRANCE46♦♦2=+0
-5.8Round 7🇷🇪 REUNION12♥x♠8-3-9
-6.2Round 5🇨🇦 CANADA122♥♦J-1-6
-6.4Round 15🇩🇪 GERMANY84♥x♣A-2-5
-6.7Round 18🇵🇰 PAKISTAN316NT♣4=+0
-7.0Round 7🇷🇪 REUNION104♥♦4+1-1
-7.4Round 15🇩🇪 GERMANY66♦♥K-1-11
-7.5Round 4🇯🇵 JAPAN205♦x♥2-3-4
-7.7Round 15🇩🇪 GERMANY22♠♥J-2-8
-7.8Round 1🇫🇷 FRANCE96♠♥J=+0
-7.8Round 8🇧🇷 BRAZIL232♠♥10+3-10
-9.2Round 10🇮🇳 INDIA294♠♥J-1-12
-9.2Round 21🇬🇵 GUADELOUPE63NT♥4=-10
-10.1Round 15🇩🇪 GERMANY154♠♦A-2-9
-10.5Round 4🇯🇵 JAPAN176NT♠Q=+0
-11.0Round 2🇵🇱 POLAND195♦x♥Q-2-12
-11.8Round 15🇩🇪 GERMANY44♠♥7=-10