ZHUANG Zejun · SAIC RED

21rank
-2.7Butler · 144 bds
-0.02per board
±4.6swing
+0.35vs par /bd · #7/18
+0.12adjusted /bd
Butler per round: 12.6 12.6 12.6 -20.5 -20.5 -20.5 5.2 5.2 5.2by round

vs par split: bidding +0.28 · play +0.08

Strength of schedule: opponents averaged +0.14/bd (a tough draw) → opponent-adjusted +0.12/bd

Card play — on target: opening leads 82.4% #9 of 18 · declarer play 74.5% #7 of 18 · defence 85.7% #11 of 18

Card play by contract type — on target
vs NTvs a suit
Opening leads55.6% (9)92.0% (25)
Declarer play63.6% (11)77.8% (36)
Defence84.2% (19)86.4% (44)

Opening leads by suit led: ♠ 75.0% (16) · ♥ 83.3% (6) · ♦ 85.7% (7) · ♣ 100.0% (5)

vs par by strain: NT -0.58 (41) · a suit +0.73 (103)

vs par by level: part-score +0.66 (56) · game +0.32 (82) · slam -2.00 (6)

By role: declaring -0.23/bd (-1.62 vs par · 81) · defending +0.26/bd (+2.89 vs par · 63)

By vulnerability: vulnerable -0.67/bd (-0.29 vs par · 72) · not vulnerable +0.63/bd (+1.00 vs par · 72)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
QuarterfinalW.WangJ.Kalita – J.Hayman PiafskyClosed16+6.0+0.38+3.00
QuarterfinalW.WangJ.Romanowski – M.RossardClosed16-10.9-0.68-1.19
QuarterfinalW.WangJ.Kalita – J.Hayman PiafskyClosed16+17.5+1.09+1.38
SemifinalW.WangD.Korbel – L.WynstonClosed16+6.9+0.43-0.94
SemifinalW.WangD.Wolpert – H.WolpertClosed16+0.3+0.02+0.31
SemifinalW.WangN.Gartaganis – J.GartaganisClosed16-27.7-1.73+0.19
FinalW.WangJ.Shih – P.WangClosed16+1.0+0.06+2.06
FinalW.WangD.Chen – K.ShimamuraOpen16-5.2-0.33-0.69
FinalW.WangJ.Shih – P.WangClosed16+9.4+0.59-0.94

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
+11.7QuarterfinalROSSARD123NT♠4=+10
+11.4QuarterfinalROSSARD413♣x♣J-3+12
+11.3FinalYEH BROS303NTx♥9=+9
+10.3FinalYEH BROS225♠♦K-1+10
+9.7FinalYEH BROS134♥♠K-1+6
+8.0FinalYEH BROS355♦♠K-1+12
+7.4QuarterfinalROSSARD393NT♥K-3+9
+6.7QuarterfinalROSSARD15♥x♠K-3+12
+6.7QuarterfinalROSSARD182♥♠T-2+5
+6.7QuarterfinalROSSARD304♠♣K=+11
+6.7SemifinalCANADA175♥♣K-1+6
+6.6QuarterfinalROSSARD464♠♦A-1+4
+6.3SemifinalCANADA42NT♦A-2+7
+6.3SemifinalCANADA262♠♣2-3+5
+5.6QuarterfinalROSSARD353NT♠5+1+1
+5.3FinalYEH BROS32♠♠2=+12
+5.0SemifinalCANADA91NT♠J=+5
+5.0SemifinalCANADA112♥♣A+2+1
+5.0SemifinalCANADA135♥xx♦2-1+12
+5.0FinalYEH BROS333♥♦K=+1
+5.0FinalYEH BROS393♠♣A-2+9
+4.7FinalYEH BROS314♠x♦A-1+9
+4.6QuarterfinalROSSARD254♥♣K+2-11
+4.3FinalYEH BROS173♠♦4+1+1
+4.3FinalYEH BROS372♠♥K+1+0
+4.0SemifinalCANADA123♣♠T+2+6
+4.0SemifinalCANADA292♦♦9=+6
+4.0FinalYEH BROS122♥♦7-1+8
+3.7FinalYEH BROS254♥♦J+1+0
+3.3FinalYEH BROS164♥♦2=-1
+3.1QuarterfinalROSSARD33NT♠7-2+8
+3.1QuarterfinalROSSARD192♠♠3=+5
+2.7FinalYEH BROS241NT♥5-1+4
+2.6QuarterfinalROSSARD265♠♣3+2-12
+2.4QuarterfinalROSSARD322♥♦2=+0
+2.4QuarterfinalROSSARD482♠♣K+1+1
+2.3SemifinalCANADA71NT♥J=-1
+2.1QuarterfinalROSSARD143NT♠5=+1
+2.1QuarterfinalROSSARD282♠♥A=+0
+2.0QuarterfinalROSSARD94♠x♥K-1+7
+2.0SemifinalCANADA163♦♣3+1-7
+2.0SemifinalCANADA225♦♠A=+0
+2.0SemifinalCANADA474♥♠7-2+11
+2.0FinalYEH BROS453NT♣J=+1
+1.7QuarterfinalROSSARD82♠♦A+1+1
+1.7SemifinalCANADA202♥♣3-1+6
+1.7SemifinalCANADA442♥♦3=-1
+1.3SemifinalCANADA414♠♣2=+13
+1.3FinalYEH BROS94♠♣7-1+10
+1.0QuarterfinalROSSARD101NT♥2=+1
+1.0SemifinalCANADA234♥♥2-2+8
+1.0SemifinalCANADA483NT♥4+1+0
+1.0FinalYEH BROS153♦♠A-2+0
+0.9QuarterfinalROSSARD114♥♦6+1+0
+0.7SemifinalCANADA364♠♥2+3-12
+0.7FinalYEH BROS73♥♠10=+10
+0.7FinalYEH BROS343NT♠9-2+0
+0.7FinalYEH BROS401NT♣A=-7
+0.4QuarterfinalROSSARD453NT♥5+1+0
+0.3SemifinalCANADA144♠♥3+2-11
+0.3SemifinalCANADA274♠♣K=+1
+0.3SemifinalCANADA333NT♠7+2-1
+0.3FinalYEH BROS144♠♥9-2+1
+0.1QuarterfinalROSSARD383NT♥6+1+12
+0.0QuarterfinalROSSARD244♥♠2=+0
+0.0QuarterfinalROSSARD363NT♠T=-10
+0.0SemifinalCANADA53NT♠3+1+0
+0.0SemifinalCANADA186♥♦A=+0
+0.0SemifinalCANADA242♥♦Q+1+0
+0.0SemifinalCANADA254♥♦J=-1
+0.0SemifinalCANADA283NT♦T=-2
+0.0SemifinalCANADA314♠♦T+1-13
+0.0SemifinalCANADA455♥♦2=+13
+0.0FinalYEH BROS83♠♣A=+0
-0.0FinalYEH BROS263♥♠7-1-6
+0.0FinalYEH BROS363NT♠5+1-12
+0.0FinalYEH BROS384♠♣K-1+6
+0.0FinalYEH BROS414♠♥4=+0
+0.0FinalYEH BROS424♠♥T+1+0
+0.0FinalYEH BROS434♠♥2=+0
-0.1QuarterfinalROSSARD473NT♠2+2+0
-0.3SemifinalCANADA84♥♣J+1-4
-0.3SemifinalCANADA405♣♥K=-11
-0.3FinalYEH BROS113NT♠3+1+11
-0.3FinalYEH BROS464♥♣2=-1
-0.3FinalYEH BROS482NT♥3-1-5
-0.4QuarterfinalROSSARD42♠♦A=+1
-0.7SemifinalCANADA62♥♣6-2+0
-0.7SemifinalCANADA384♥♣6=+14
-0.7FinalYEH BROS183NTx♣10-1+0
-0.7FinalYEH BROS273♠♦2-1-2
-1.0QuarterfinalROSSARD345♦♠K=+2
-1.0SemifinalCANADA352♥♥3=+5
-1.0SemifinalCANADA393NT♦7+2-1
-1.0SemifinalCANADA465♦♠6+1+0
-1.1QuarterfinalROSSARD151NT♥3-2-2
-1.3QuarterfinalROSSARD234♠♣K+2+12
-1.3QuarterfinalROSSARD371NT♣4=+0
-1.4QuarterfinalROSSARD72♥♠3=+1
-1.4QuarterfinalROSSARD332NT♦7+1-6
-1.6QuarterfinalROSSARD52♦♠4=+1
-1.7QuarterfinalROSSARD164♠x♦A-2+11
-1.7QuarterfinalROSSARD443♥x♠8-1+6
-1.7FinalYEH BROS283♣♣6=+0
-2.0QuarterfinalROSSARD204♣♥8=+0
-2.0SemifinalCANADA194♥♦K-2-6
-2.3SemifinalCANADA21NT♦6=-5
-2.4QuarterfinalROSSARD64♠♦J=-3
-2.7SemifinalCANADA31NT♥Q+1-1
-2.9QuarterfinalROSSARD402♦♣7-1-10
-3.0SemifinalCANADA424♠♦T+2+1
-3.0FinalYEH BROS24♥♣8=+0
-3.1QuarterfinalROSSARD432♥♥Q+1-1
-3.3FinalYEH BROS44♠♠5=-10
-3.3FinalYEH BROS67♠x♥Q-2+0
-3.7SemifinalCANADA153♥♠2-1-5
-3.7FinalYEH BROS296♣♦3=+0
-3.9QuarterfinalROSSARD132♦♠Q=+1
-4.0FinalYEH BROS51NT♦5-2-2
-4.3SemifinalCANADA323NT♦K+1+12
-4.4QuarterfinalROSSARD213NT♥K+1+0
-4.4QuarterfinalROSSARD294♠x♥A=-5
-4.4QuarterfinalROSSARD313♠♥2=+0
-4.7FinalYEH BROS105♣♠K-2-7
-4.7FinalYEH BROS213NT♠K-2-11
-4.7FinalYEH BROS324♥♣A-1-10
-4.9QuarterfinalROSSARD426♦♥3+1+2
-5.0SemifinalCANADA372♥♠6+2-1
-5.3QuarterfinalROSSARD174♠♦7-1-10
-5.3SemifinalCANADA14♠x♣J-1+0
-6.0QuarterfinalROSSARD272♠♦Q+2-13
-6.0FinalYEH BROS13NT♠Q-1-5
-6.7SemifinalCANADA305♠♦K-1-4
-7.7SemifinalCANADA434♠♦K+2-14
-7.7FinalYEH BROS471NT♠K+4-7
-8.0SemifinalCANADA103NT♦T-1-12
-8.0FinalYEH BROS204♥♣7-1-6
-8.0FinalYEH BROS234♠♦10=+0
-8.0FinalYEH BROS443NT♥J-1-12
-8.7SemifinalCANADA214♠♣Q+2-13
-10.0FinalYEH BROS194♠x♠Q-2-9
-10.7QuarterfinalROSSARD23♣x♥2-2-2
-11.3QuarterfinalROSSARD226♠♥5+1-1
-15.0SemifinalCANADA346NT♠T-2-13