🇨🇳 ZHANG Bangxiang · CHINA

60rank
+14.7Butler · 192 bds
+0.08per board
±4.5swing
+0.51vs par /bd · #20/126
+0.22adjusted /bd
Butler per round: 1.6 -0.6 25.8 -42 7.5 44.9 -2.3 -7.9 5.7 -9.7 -3.2 -5.1by round

vs par split: bidding +0.62 · play -0.22

Strength of schedule: opponents averaged +0.15/bd (a tough draw) → opponent-adjusted +0.22/bd

Card play — on target: opening leads 87.7% #25 of 126 · declarer play 76.3% #57 of 126 · defence 81.2% #120 of 126

Card play by contract type — on target
vs NTvs a suit
Opening leads73.3% (15)92.9% (42)
Declarer play53.8% (13)88.0% (25)
Defence73.5% (34)84.6% (78)

Opening leads by suit led: ♠ 83.3% (18) · ♥ 90.0% (10) · ♦ 81.2% (16) · ♣ 100.0% (13)

vs par by strain: NT -1.27 (62) · a suit +1.36 (130)

vs par by level: part-score +0.21 (68) · game +0.35 (110) · slam +3.21 (14)

By role: declaring +1.10/bd (-0.81 vs par · 79) · defending -0.64/bd (+1.43 vs par · 113)

By vulnerability: vulnerable -0.05/bd (-0.12 vs par · 96) · not vulnerable +0.20/bd (+1.14 vs par · 96)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1W.WangJ.Piekarek – A.SmirnovClosed16+1.6+0.10+0.69
Round 3W.WangG.Bilski – T.BrownClosed16-0.6-0.04-1.38
Round 5W.WangR.Tobing – T.AsbiClosed16+25.8+1.61+4.06
Round 6W.WangW.Basiony – T.MaciOpen16-42.0-2.62-2.62
Round 8W.WangM.Ino – T.TeramotoClosed16+7.5+0.47-0.25
Round 9W.WangJ.Smith – P.ThurstonClosed16+44.9+2.81+2.44
Round 10W.WangN.Eber – C.BosenbergOpen16-2.3-0.14+2.19
Round 12W.WangK.Dwyer – K.BathurstClosed16-7.9-0.49+0.12
Round 13W.WangF.Fantoni – C.NunesClosed16+5.7+0.36+1.25
Round 15W.WangG.Narkiewicz – K.BurasOpen16-9.7-0.61+0.81
Round 16W.WangD.Bakhshi – D.GoldClosed16-3.2-0.20-0.81
Round 20W.WangB.Drijver – S.BrinkOpen16-5.1-0.32-0.38

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
+12.5Round 1🇩🇪 GERMANY126♣x♦A=+13
+10.8Round 9🇨🇦 CANADA156♣♥K=+0
+10.1Round 15🇵🇱 POLAND53NT♦J=+7
+9.3Round 5🇮🇩 INDONESIA46♣♦K=+0
+9.0Round 1🇩🇪 GERMANY54♠♠3+2+17
+8.6Round 15🇵🇱 POLAND25♥x♠10-1+11
+8.5Round 13🇲🇨 MONACO116♥♠A=+0
+8.3Round 9🇨🇦 CANADA115♥x♥3-4+8
+8.2Round 8🇯🇵 JAPAN323NT♠4=-1
+8.2Round 12🇺🇸 USA1282♠♥5+3+10
+7.9Round 9🇨🇦 CANADA102♣♦3+1+11
+7.6Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND223♥x♦8-3+9
+7.4Round 12🇺🇸 USA1203♥♦A+2+10
+7.3Round 5🇮🇩 INDONESIA151NT♣3=+6
+6.8Round 5🇮🇩 INDONESIA16♠♦3-1+14
+6.7Round 12🇺🇸 USA1245♦♥K=+3
+6.3Round 3🇦🇺 AUSTRALIA103NT♦6=-1
+6.3Round 5🇮🇩 INDONESIA122NT♣5+3+15
+6.2Round 9🇨🇦 CANADA54♠♣J=+7
+6.2Round 15🇵🇱 POLAND125♣x♥K=+13
+6.1Round 9🇨🇦 CANADA164♠♣K-2+11
+5.1Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND313NT♥6+1+1
+5.1Round 20🇳🇱 NETHERLANDS285♥♦6+1+12
+5.0Round 20🇳🇱 NETHERLANDS175♦♠J=-1
+4.9Round 12🇺🇸 USA1261NT♣4+2-9
+4.9Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND194♠♥4=+0
+4.6Round 5🇮🇩 INDONESIA132♠♦A-1+11
+4.5Round 10🇿🇦 SOUTH AFRICA175♣♠4=+0
+4.4Round 13🇲🇨 MONACO91NT♦8-3+0
+4.4Round 20🇳🇱 NETHERLANDS203NT♦Q=-1
+4.0Round 12🇺🇸 USA1176♦♣8-1+10
+3.8Round 8🇯🇵 JAPAN214♣♣4-3+5
+3.8Round 10🇿🇦 SOUTH AFRICA193♥♠Q+2+2
+3.7Round 1🇩🇪 GERMANY103NT♠J=+0
+3.6Round 3🇦🇺 AUSTRALIA143NT♠5+2+10
+3.6Round 6🇧🇭 BAHRAIN293NT♦6-1+12
+3.5Round 5🇮🇩 INDONESIA144♥♣Q+2+9
+3.5Round 12🇺🇸 USA1324♥♠A-3+7
+3.1Round 8🇯🇵 JAPAN225♥x♠A-1+7
+3.1Round 9🇨🇦 CANADA13NT♠4+1+0
+3.1Round 9🇨🇦 CANADA91NT♦6+1+1
+3.0Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND184♥♠2=+0
+2.8Round 9🇨🇦 CANADA22♥♠3=+9
+2.7Round 3🇦🇺 AUSTRALIA14♥♦A-1+4
+2.6Round 3🇦🇺 AUSTRALIA36♥♠A=+0
+2.6Round 10🇿🇦 SOUTH AFRICA244♣♥A=+0
+2.5Round 3🇦🇺 AUSTRALIA134♠♥10+1+0
+2.5Round 13🇲🇨 MONACO43♣♠3+1+0
+2.1Round 3🇦🇺 AUSTRALIA43♠♦2+1-1
+2.1Round 3🇦🇺 AUSTRALIA93NT♥8+2+13
+2.1Round 8🇯🇵 JAPAN174♥♦4-2+5
+2.1Round 13🇲🇨 MONACO86♥♠2=+11
+2.0Round 1🇩🇪 GERMANY94♥♥9-1+5
+2.0Round 6🇧🇭 BAHRAIN312♥♣9+1-8
+2.0Round 10🇿🇦 SOUTH AFRICA303♠♦K-2+0
+1.9Round 1🇩🇪 GERMANY84♠♥2-1+4
+1.9Round 3🇦🇺 AUSTRALIA52NT♠J-1+4
+1.9Round 8🇯🇵 JAPAN202♥♣3=+6
+1.8Round 5🇮🇩 INDONESIA163NT♠3-1+10
+1.8Round 8🇯🇵 JAPAN293♠♣J-2+3
+1.7Round 9🇨🇦 CANADA34♥♥3-1+5
+1.7Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND202♥♣K-1+1
+1.7Round 20🇳🇱 NETHERLANDS273♥♠2-2-8
+1.6Round 13🇲🇨 MONACO164♥♦3=+8
+1.6Round 20🇳🇱 NETHERLANDS252♥♠3+2+6
+1.5Round 6🇧🇭 BAHRAIN203NT♠Q+3+1
+1.5Round 9🇨🇦 CANADA82♠♣2-1-1
+1.5Round 12🇺🇸 USA1314♠♣2+2+12
+1.4Round 6🇧🇭 BAHRAIN281♦♣5+2+1
+1.4Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND263NT♠K-1+6
+1.4Round 20🇳🇱 NETHERLANDS293NT♠4+1+1
+1.3Round 6🇧🇭 BAHRAIN252♠♣A+1+1
+1.3Round 9🇨🇦 CANADA43NT♠5+1+0
+1.3Round 13🇲🇨 MONACO54♥♠Q=+0
+1.2Round 9🇨🇦 CANADA73NT♠2+2+0
+1.1Round 5🇮🇩 INDONESIA64♠♣5-1+5
+1.1Round 13🇲🇨 MONACO23NT♥J=+1
+1.0Round 8🇯🇵 JAPAN264♠♣5+2-13
+1.0Round 13🇲🇨 MONACO62♠♠K+1-1
+1.0Round 15🇵🇱 POLAND31NT♠10+1+7
+0.9Round 5🇮🇩 INDONESIA54♥♦T+1+6
+0.8Round 20🇳🇱 NETHERLANDS264♥♣5+1+0
+0.7Round 1🇩🇪 GERMANY12♣x♦2-1+0
+0.7Round 5🇮🇩 INDONESIA24♥♦K=-1
+0.7Round 8🇯🇵 JAPAN194♠♦K-1+0
+0.6Round 10🇿🇦 SOUTH AFRICA224♠♥K-1+10
+0.6Round 10🇿🇦 SOUTH AFRICA271NT♥7=-1
+0.5Round 20🇳🇱 NETHERLANDS191NT♠T-1-2
+0.4Round 13🇲🇨 MONACO74♠♦8=+1
+0.4Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND303NT♥8=+1
+0.3Round 1🇩🇪 GERMANY152♥♦Q=+0
+0.3Round 10🇿🇦 SOUTH AFRICA252♥♦Q+3-2
+0.2Round 3🇦🇺 AUSTRALIA64♦♣A+1-6
+0.2Round 10🇿🇦 SOUTH AFRICA263♠♦A+1+1
+0.2Round 12🇺🇸 USA1214♠♦Q+1+0
+0.2Round 15🇵🇱 POLAND44♠♥A+1+4
+0.1Round 13🇲🇨 MONACO154♠♣A-1+6
-0.0Round 1🇩🇪 GERMANY34♠♦3+1+0
+0.0Round 3🇦🇺 AUSTRALIA114♥♣9+1+0
+0.0Round 5🇮🇩 INDONESIA113NT♥6=+0
-0.0Round 10🇿🇦 SOUTH AFRICA294♥♣4+1+0
+0.0Round 15🇵🇱 POLAND73NT♣5=-1
-0.0Round 15🇵🇱 POLAND134♥♠10+1+0
+0.0Round 20🇳🇱 NETHERLANDS313NT♠4+1+0
-0.1Round 8🇯🇵 JAPAN242♥♦K+1+6
-0.1Round 8🇯🇵 JAPAN273NT♥8+2-11
-0.1Round 8🇯🇵 JAPAN284♠♦3+1+0
-0.1Round 13🇲🇨 MONACO125♦♥A-1+2
-0.2Round 9🇨🇦 CANADA134♥♥3+2+5
-0.2Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND253♣♠A=+0
-0.3Round 6🇧🇭 BAHRAIN324♥♣4+1+0
-0.3Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND292♠♥6-1-1
-0.4Round 12🇺🇸 USA1193NT♦4+2+0
-0.4Round 20🇳🇱 NETHERLANDS222♥♦9+1+0
-0.5Round 8🇯🇵 JAPAN254♠♦3=+1
-0.5Round 9🇨🇦 CANADA123NT♦5+2+0
-0.5Round 10🇿🇦 SOUTH AFRICA313NT♥J+2+0
-0.5Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND214♥♣A=+1
-0.6Round 3🇦🇺 AUSTRALIA124♥♣K=+0
-0.8Round 10🇿🇦 SOUTH AFRICA215♦♥2+1+10
-0.9Round 3🇦🇺 AUSTRALIA73NT♦4+2+0
-0.9Round 15🇵🇱 POLAND61NT♦9=-5
-1.0Round 5🇮🇩 INDONESIA81NT♥5-3-2
-1.0Round 6🇧🇭 BAHRAIN261♠♥7+1+0
-1.0Round 6🇧🇭 BAHRAIN303NT♣2+3-2
-1.0Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND242♦♥T=+0
-1.1Round 5🇮🇩 INDONESIA91NT♥K+1+0
-1.2Round 3🇦🇺 AUSTRALIA163NT♥2+1-11
-1.2Round 12🇺🇸 USA1234♥♥2+1+0
-1.3Round 10🇿🇦 SOUTH AFRICA183♠♦K=+8
-1.3Round 10🇿🇦 SOUTH AFRICA323NT♠3+2+0
-1.4Round 13🇲🇨 MONACO104♠♦7+1-4
-1.5Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND274♠♣6=-3
-1.6Round 6🇧🇭 BAHRAIN272♥♣J-1-5
-1.6Round 13🇲🇨 MONACO12♣x♠6-2+3
-1.7Round 20🇳🇱 NETHERLANDS241NT♥7+2-1
-1.8Round 6🇧🇭 BAHRAIN233NT♠4-2-3
-1.8Round 10🇿🇦 SOUTH AFRICA201♠♦10+2-1
-1.8Round 20🇳🇱 NETHERLANDS233♠♦K-1+1
-1.9Round 1🇩🇪 GERMANY134♥♣A-1-7
-1.9Round 20🇳🇱 NETHERLANDS322♥♦A=+0
-2.0Round 8🇯🇵 JAPAN303NT♥K=+0
-2.0Round 8🇯🇵 JAPAN312♠♥4+2-1
-2.1Round 1🇩🇪 GERMANY73♥♣K=+0
-2.1Round 1🇩🇪 GERMANY165♥♣9-1+3
-2.2Round 1🇩🇪 GERMANY143♥♦3=+6
-2.4Round 10🇿🇦 SOUTH AFRICA286NT♣Q=+13
-2.4Round 15🇵🇱 POLAND154♠♥2=+0
-2.4Round 15🇵🇱 POLAND161NT♠6-1-3
-2.5Round 12🇺🇸 USA1226♥♥8+1-1
-2.5Round 13🇲🇨 MONACO34♠♦9-1-6
-2.5Round 20🇳🇱 NETHERLANDS304♠♥2+2-2
-2.6Round 15🇵🇱 POLAND83NT♠2+2-1
-2.7Round 1🇩🇪 GERMANY42♥♥3+1+0
-2.7Round 5🇮🇩 INDONESIA104♠♥A=+0
-2.8Round 1🇩🇪 GERMANY113NT♥2-2-6
-2.9Round 8🇯🇵 JAPAN233NT♠6+1-11
-3.0Round 6🇧🇭 BAHRAIN225♦♣5=+1
-3.1Round 5🇮🇩 INDONESIA76♥♦3=+0
-3.1Round 13🇲🇨 MONACO134♦♥K=+0
-3.3Round 1🇩🇪 GERMANY24♠♠5-1-5
-3.5Round 15🇵🇱 POLAND12♥♣5+1-7
-3.7Round 3🇦🇺 AUSTRALIA153NT♠3-2-8
-3.8Round 9🇨🇦 CANADA64♦♠A-2-5
-4.4Round 15🇵🇱 POLAND106♠♣5=+0
-4.4Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND231NT♦K=-5
-4.4Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND284♠♥4-2-6
-4.6Round 9🇨🇦 CANADA143NT♠A=-12
-4.8Round 15🇵🇱 POLAND142NT♠2=-1
-5.4Round 6🇧🇭 BAHRAIN213NT♣3+2-2
-5.8Round 15🇵🇱 POLAND114♥♣K=+0
-6.0Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND324♥♠5=-7
-6.1Round 12🇺🇸 USA1273NT♥3+1+0
-6.5Round 6🇧🇭 BAHRAIN181NT♥8-3-9
-7.1Round 6🇧🇭 BAHRAIN243♦♠7=-5
-7.1Round 12🇺🇸 USA1251♠♥J-3-5
-7.4Round 8🇯🇵 JAPAN184♥♦6=+0
-7.7Round 12🇺🇸 USA1184♦♠4=-11
-8.3Round 20🇳🇱 NETHERLANDS185♣♣2=+0
-8.6Round 5🇮🇩 INDONESIA33NT♦Q-2-8
-8.6Round 12🇺🇸 USA1295♣♠8+1-9
-8.6Round 13🇲🇨 MONACO146♠♣4+1-1
-8.8Round 3🇦🇺 AUSTRALIA86NT♦7-2-14
-8.8Round 10🇿🇦 SOUTH AFRICA234♥x♠10=-5
-9.0Round 15🇵🇱 POLAND92♦♥K+3-11
-9.0Round 16🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND175♠♥2-1-10
-9.0Round 20🇳🇱 NETHERLANDS213NT♠6=-11
-9.4Round 3🇦🇺 AUSTRALIA24♠x♥A=-12
-10.7Round 12🇺🇸 USA1303NT♠A+1-15
-11.4Round 1🇩🇪 GERMANY63NT♣3-1-19
-11.4Round 6🇧🇭 BAHRAIN173♠x♣4=-12
-12.7Round 6🇧🇭 BAHRAIN193NTx♥7=-12