CHANG Ziwen · RDFZ BRIDGE STRAIT

32rank
-10.4Butler · 16 bds
-0.65per board
±5.0swing
+1.25vs par /bd
-0.15adjusted /bd
by round

vs par split: bidding +1.38 · play -0.12

Strength of schedule: opponents averaged +0.50/bd (a tough draw) → opponent-adjusted -0.15/bd

Card play — on target: opening leads 100.0% · declarer play 66.7% · defence 70.0%

Card play by contract type — on target
vs NTvs a suit
Opening leads·100.0% (4)
Declarer play0.0% (1)100.0% (2)
Defence33.3% (3)85.7% (7)

Opening leads by suit led: ♠ 100.0% (2) · ♥ 100.0% (1) · ♣ 100.0% (1)

vs par by strain: NT +0.25 (4) · a suit +1.58 (12)

vs par by level: part-score -0.50 (4) · game -1.00 (9) · slam +10.33 (3)

By role: declaring -0.83/bd (-4.67 vs par · 6) · defending -0.54/bd (+4.80 vs par · 10)

By vulnerability: vulnerable -1.59/bd (+2.75 vs par · 8) · not vulnerable +0.29/bd (-0.25 vs par · 8)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
QuarterfinalZ.SunS.Li – X.ZhangOpen16-10.4-0.65+1.25

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
+8.7QuarterfinalSXSATURN125♣♥A+1-11
+7.7QuarterfinalSXSATURN103NT♠Q+4+17
+5.0QuarterfinalSXSATURN23♦♥K-1+6
+4.6QuarterfinalSXSATURN115♣x♥A-1+5
+0.6QuarterfinalSXSATURN44♥♣J=+1
+0.4QuarterfinalSXSATURN12♥♣K=-1
+0.3QuarterfinalSXSATURN34♥♠3=+0
-0.0QuarterfinalSXSATURN96♣♠A-1+6
-2.1QuarterfinalSXSATURN83♥♣7=-4
-2.3QuarterfinalSXSATURN154♠♣2-1-5
-3.0QuarterfinalSXSATURN163NT♠Q+2-8
-3.3QuarterfinalSXSATURN73NT♣8-3-4
-4.1QuarterfinalSXSATURN53NT♠6+2-4
-6.4QuarterfinalSXSATURN63♠♥4+2-3
-7.9QuarterfinalSXSATURN146♦♠J=+12
-8.6QuarterfinalSXSATURN136♠♣2=+13