🇨🇳 ZHUANG Zejun · CHINA

29rank
-17.2Butler · 64 bds
-0.27per board
±3.7swing
-1.28vs par /bd
+0.09adjusted /bd
Butler per round: -17.2 -17.2 -17.2 -17.2by round

vs par split: bidding -1.12 · play -0.16

Strength of schedule: opponents averaged +0.36/bd (a tough draw) → opponent-adjusted +0.09/bd

Card play — on target: opening leads 81.2% · declarer play 76.5% · defence 84.4%

Card play by contract type — on target
vs NTvs a suit
Opening leads75.0% (4)83.3% (12)
Declarer play75.0% (4)76.9% (13)
Defence70.0% (10)90.9% (22)

Opening leads by suit led: ♠ 83.3% (6) · ♥ 66.7% (3) · ♦ 100.0% (4) · ♣ 66.7% (3)

vs par by strain: NT -0.90 (20) · a suit -1.46 (44)

vs par by level: part-score -0.71 (21) · game -1.32 (37) · slam -3.00 (6)

By role: declaring -0.45/bd (-3.84 vs par · 32) · defending -0.09/bd (+1.28 vs par · 32)

By vulnerability: vulnerable +0.24/bd (-1.84 vs par · 32) · not vulnerable -0.78/bd (-0.72 vs par · 32)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
QuarterfinalG.ChenM.Nowosadzki – J.KalitaClosed16+8.0+0.50-0.56
QuarterfinalG.ChenK.Buras – G.NarkiewiczOpen16-14.3-0.89-2.75
QuarterfinalG.ChenK.Buras – G.NarkiewiczClosed16+6.1+0.38-1.44
QuarterfinalG.ChenM.Nowosadzki – J.KalitaClosed16-17.0-1.06-0.38

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
+9.1Quarterfinal🇵🇱 POLAND64♥♣8=+3
+8.7Quarterfinal🇵🇱 POLAND43NT♥2=+10
+7.7Quarterfinal🇵🇱 POLAND123NT♠10-2+7
+6.3Quarterfinal🇵🇱 POLAND503NT♥6+1+7
+4.9Quarterfinal🇵🇱 POLAND476♣♠6=-13
+4.7Quarterfinal🇵🇱 POLAND594♠♥J+1+1
+4.6Quarterfinal🇵🇱 POLAND842NT♣6-2+7
+4.0Quarterfinal🇵🇱 POLAND34♥♠A=+3
+3.9Quarterfinal🇵🇱 POLAND135♦x♥A-1-7
+3.7Quarterfinal🇵🇱 POLAND544♠x♥K-1+0
+3.7Quarterfinal🇵🇱 POLAND872♠♥2-1-1
+2.9Quarterfinal🇵🇱 POLAND24♥♦4-2+3
+2.9Quarterfinal🇵🇱 POLAND613♦♥Q+2+10
+2.6Quarterfinal🇵🇱 POLAND564♥♠5=+0
+2.1Quarterfinal🇵🇱 POLAND633NT♠6+2+1
+2.0Quarterfinal🇵🇱 POLAND384♥♠K-1+6
+2.0Quarterfinal🇵🇱 POLAND465♦♥K-1+10
+1.3Quarterfinal🇵🇱 POLAND583♠♦Q-1-9
+1.0Quarterfinal🇵🇱 POLAND513NT♥5=+2
+0.9Quarterfinal🇵🇱 POLAND901♥♣9+2+0
+0.7Quarterfinal🇵🇱 POLAND113♠♦K+1+6
+0.7Quarterfinal🇵🇱 POLAND342♦♦5+1+0
+0.6Quarterfinal🇵🇱 POLAND92♠♠3+1+6
+0.4Quarterfinal🇵🇱 POLAND403NT♣9=+0
+0.3Quarterfinal🇵🇱 POLAND143♠♥3=-1
+0.3Quarterfinal🇵🇱 POLAND644♠♥A=+0
+0.1Quarterfinal🇵🇱 POLAND353NT♠9+2+0
+0.1Quarterfinal🇵🇱 POLAND923♣♦6+1+0
+0.0Quarterfinal🇵🇱 POLAND483NT♥7+2+0
-0.0Quarterfinal🇵🇱 POLAND526♥♠9-1-17
-0.0Quarterfinal🇵🇱 POLAND853NT♠3-2+7
-0.1Quarterfinal🇵🇱 POLAND534♥♠A=+0
-0.3Quarterfinal🇵🇱 POLAND363NT♥3+1-13
-0.3Quarterfinal🇵🇱 POLAND454♥♣5+2-1
-0.7Quarterfinal🇵🇱 POLAND946♥♦Q+1-11
-0.9Quarterfinal🇵🇱 POLAND952♥♠2+2-7
-1.1Quarterfinal🇵🇱 POLAND102NT♥J=+1
-1.1Quarterfinal🇵🇱 POLAND913NT♥K-1-5
-1.3Quarterfinal🇵🇱 POLAND935♣♥K=-3
-1.4Quarterfinal🇵🇱 POLAND72♦♣7-1+0
-1.9Quarterfinal🇵🇱 POLAND413NT♣6+1-1
-2.0Quarterfinal🇵🇱 POLAND832♥♣Q=-5
-2.1Quarterfinal🇵🇱 POLAND443NT♥Q-2-13
-2.1Quarterfinal🇵🇱 POLAND812♠♦3+1-1
-2.3Quarterfinal🇵🇱 POLAND374♠♦K-1-5
-2.4Quarterfinal🇵🇱 POLAND826♥♠10=+13
-2.7Quarterfinal🇵🇱 POLAND604♥♠A+1+0
-3.1Quarterfinal🇵🇱 POLAND883NT♠2+1-1
-3.1Quarterfinal🇵🇱 POLAND897♥♦A=+0
-3.3Quarterfinal🇵🇱 POLAND164♠♥A=-7
-3.3Quarterfinal🇵🇱 POLAND494♠♦3-1-5
-3.3Quarterfinal🇵🇱 POLAND554♠♠J+3-12
-3.3Quarterfinal🇵🇱 POLAND863♠♦A+1+6
-3.6Quarterfinal🇵🇱 POLAND423♠♥2-2-7
-3.9Quarterfinal🇵🇱 POLAND433♣x♥A-2-5
-4.0Quarterfinal🇵🇱 POLAND83NT♠3=-7
-4.0Quarterfinal🇵🇱 POLAND153NT♦5=-10
-4.1Quarterfinal🇵🇱 POLAND392♠♦Q=+1
-4.7Quarterfinal🇵🇱 POLAND576♥♠A=+10
-4.7Quarterfinal🇵🇱 POLAND624♠♣6-3-11
-5.1Quarterfinal🇵🇱 POLAND13NT♦7-1-5
-5.9Quarterfinal🇵🇱 POLAND334♥x♣K-3-3
-6.3Quarterfinal🇵🇱 POLAND961NT♣A-3-5
-11.0Quarterfinal🇵🇱 POLAND51♣x♦A-1-11