ZHANG Qiang · SHENZHEN QIAOYOU CLUB

456rank
-15.7Butler · 100 bds
-0.16per board
±4.0swing
-0.36vs par /bd · #472/672
+0.07adjusted /bd
Butler per round: 6.2 4.7 12.8 5.2 4.4 -6.9 -12.5 -9.1 -5.2 -15.3by round

vs par split: bidding +0.62 · play -1.34

Strength of schedule: opponents averaged +0.22/bd (a tough draw) → opponent-adjusted +0.07/bd

Card play — on target: opening leads 87.5% #162 of 671 · declarer play 60.0% #622 of 671 · defence 86.2% #297 of 672

Card play by contract type — on target
vs NTvs a suit
Opening leads·87.5% (16)
Declarer play·60.0% (15)
Defence·86.2% (29)

Opening leads by suit led: ♠ 100.0% (2) · ♥ 80.0% (5) · ♦ 75.0% (4) · ♣ 100.0% (5)

vs par by strain: a suit -0.72 (64)

vs par by level: part-score -0.24 (29) · game +0.50 (28) · slam -7.57 (7)

By role: declaring -0.65/bd (-2.68 vs par · 56) · defending +0.47/bd (+2.59 vs par · 44)

By vulnerability: vulnerable +0.03/bd (-0.07 vs par · 54) · not vulnerable -0.38/bd (-0.70 vs par · 46)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1B.ZhangZ.Xu – Y.GuanOpen10+6.2+0.62+2.30
Round 3S.GuiX.Wei – Y.HuangOpen10+4.7+0.47-1.20
Round 4S.GuiR.Kutner – N.BuchlevOpen10+12.8+1.28+1.30
Round 5B.ZhangA.Levy – P.ChemlaOpen10+5.2+0.52-0.10
Round 6S.GuiJ.Zhao – Z.FuOpen10+4.4+0.44-0.40
Round 8S.GuiB.Gierulski – J.SkrzypczakOpen10-6.9-0.69-1.70
Round 10S.GuiI.Bonev – V.BatovOpen10-12.5-1.25+0.00
Round 11S.GuiA.Jezioro – J.RussyanOpen10-9.1-0.91-0.80
Round 13S.GuiS.Hinge – C.ChuaOpen10-5.2-0.52-3.70
Round 14S.GuiB.Levin – S.WeinsteinClosed10-15.3-1.53+0.70

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
+11.1Round 8BURGAY204♥♠8-2+13
+10.5Round 6CHINA SMEG266♠♥Q-1+11
+8.4Round 13HINGE86♠♠3=-11
+8.1Round 5ZALESKI133Nx♠3-1+12
+7.4Round 4MUNICH44♠♥J=+0
+6.9Round 3SHANGHAI JIANQIAO273N♥9+1+7
+6.9Round 13HINGE103N♦9-2+8
+6.5Round 1SHANGHAI OCEAN73N♠J-1+13
+6.4Round 5ZALESKI156♦♠J=-2
+6.0Round 8BURGAY154♥♣J-2+8
+4.6Round 1SHANGHAI OCEAN42♠♦Q=+6
+4.5Round 3SHANGHAI JIANQIAO264♣♦A+2+4
+3.7Round 4MUNICH63♣♠Q-1+12
+3.7Round 10CHATEAU ROSSENOVO42♠x♥2-1+7
+3.4Round 4MUNICH14♠♥7-3+6
+3.4Round 11POLISH SENIORS113N♥Q+1+0
+3.3Round 1SHANGHAI OCEAN83N♠5-1+4
+3.3Round 3SHANGHAI JIANQIAO303N♥7=-6
+3.3Round 13HINGE24♥♣5=-1
+2.8Round 4MUNICH82♥♠Q-4+2
+2.4Round 10CHATEAU ROSSENOVO12N♠9-2+5
+2.3Round 10CHATEAU ROSSENOVO82♠♣J+1+6
+2.2Round 14GORDON145♠♥J+1+14
+2.1Round 6CHINA SMEG303N♥8-2+6
+2.0Round 11POLISH SENIORS145♦♥K=-14
+1.8Round 1SHANGHAI OCEAN54♠♥A-1+5
+1.8Round 6CHINA SMEG241N♠Q=-1
+1.7Round 1SHANGHAI OCEAN62N♣5=+1
+1.6Round 11POLISH SENIORS122♠♣3+1+10
+1.5Round 8BURGAY182♠♦Q=+0
+1.3Round 5ZALESKI112♠♠5=+5
+1.2Round 6CHINA SMEG233♥♣5+1+1
+1.2Round 11POLISH SENIORS194♠♣J+1+1
+1.0Round 3SHANGHAI JIANQIAO252♥♥4-1+1
+1.0Round 4MUNICH51N♠4-1-1
+1.0Round 6CHINA SMEG222♠♦K+1+6
+0.7Round 3SHANGHAI JIANQIAO223N♥2+1-5
+0.6Round 8BURGAY173N♥9=-6
+0.5Round 10CHATEAU ROSSENOVO64♠♣K=+0
+0.5Round 14GORDON191N♠6+1+6
+0.4Round 8BURGAY141N♠2=-1
+0.3Round 10CHATEAU ROSSENOVO54♠♥7+2+11
+0.1Round 4MUNICH23N♠4+1+0
+0.1Round 11POLISH SENIORS204N♠3+2+13
+0.0Round 6CHINA SMEG283N♥9+2+0
-0.0Round 13HINGE94♠♦5+1+0
-0.2Round 6CHINA SMEG274♥♦K-1-5
-0.3Round 3SHANGHAI JIANQIAO212N♣10=-1
-0.3Round 10CHATEAU ROSSENOVO32♥♦K+1+0
-0.4Round 13HINGE74♥♠9=+1
-0.5Round 14GORDON172N♠6=+0
-0.6Round 3SHANGHAI JIANQIAO242♥♠8=-1
-0.6Round 4MUNICH71N♥2+1+1
-0.6Round 5ZALESKI204♠♣A=+1
-0.6Round 14GORDON134♠♣K+2+6
-0.8Round 4MUNICH10Pass-3
-0.8Round 5ZALESKI121♠♣J=-1
-0.9Round 5ZALESKI144♣♠Q-2+0
-1.1Round 8BURGAY162♠♥A+1+0
-1.1Round 13HINGE33N♥2=-2
-1.2Round 1SHANGHAI OCEAN103N♠Q=+3
-1.2Round 5ZALESKI161N♦5=-2
-1.2Round 11POLISH SENIORS132♥♣4=-1
-1.4Round 1SHANGHAI OCEAN93N♥10+2+0
-1.4Round 5ZALESKI172N♠4-1-4
-1.5Round 4MUNICH33N♥5+1+1
-1.6Round 14GORDON163N♣10=+1
-1.7Round 14GORDON112♥♦6=-5
-2.1Round 1SHANGHAI OCEAN12♠♦8-2-8
-2.2Round 3SHANGHAI JIANQIAO293N♥K+2+0
-2.2Round 13HINGE14♠♥Q+1-1
-2.2Round 14GORDON121N♠3-1-5
-2.3Round 1SHANGHAI OCEAN34♠x♣A-3+4
-2.3Round 3SHANGHAI JIANQIAO234♠♣10+1+0
-2.3Round 5ZALESKI184♠♣A-1-5
-2.4Round 11POLISH SENIORS172♦♣Q+1+0
-2.6Round 6CHINA SMEG253♥♣A-1-6
-2.7Round 4MUNICH92♠♣8-2-5
-2.8Round 14GORDON204♠♠6=+0
-2.9Round 11POLISH SENIORS154♠♣A-1+2
-3.4Round 5ZALESKI192♠♣2=-5
-3.4Round 8BURGAY123N♣10-2-6
-3.5Round 10CHATEAU ROSSENOVO25♦♥K=+0
-3.8Round 14GORDON181♠♥4+1-7
-4.1Round 6CHINA SMEG293♠♥J-3-5
-4.1Round 11POLISH SENIORS183♠♥6=-6
-4.5Round 10CHATEAU ROSSENOVO104♠♣5-1-6
-4.5Round 13HINGE66♠♦3-1-14
-4.7Round 1SHANGHAI OCEAN23♠x♣Q-1-5
-4.8Round 8BURGAY193N♦6-2-7
-4.8Round 14GORDON154♠♦A-2-3
-4.9Round 10CHATEAU ROSSENOVO72♥♠6-1-12
-5.2Round 13HINGE44♠♦7+2-1
-5.3Round 6CHINA SMEG216♥♣Q-1-11
-5.3Round 8BURGAY113N♥3-1-8
-6.3Round 3SHANGHAI JIANQIAO284♥♦7-1-11
-6.8Round 11POLISH SENIORS166N♠8-1-13
-8.5Round 10CHATEAU ROSSENOVO94♠x♥K-4-11
-10.4Round 13HINGE56♦♠8-1-16
-11.9Round 8BURGAY136♠♥A=-10