ZHANG Zhenghua · ZUOMEICHENG

15rank
+3.6Butler · 16 bds
+0.23per board
±3.7swing
-2.00vs par /bd
+0.49adjusted /bd
by round

vs par split: bidding +0.33 · play -0.67

Strength of schedule: opponents averaged +0.26/bd (a tough draw) → opponent-adjusted +0.49/bd

Card play — on target: declarer play 60.0% · defence 100.0%

Card play by contract type — on target
vs NTvs a suit
Declarer play·60.0% (5)
Defence·100.0% (2)

vs par by strain: a suit -0.80 (10)

vs par by level: part-score -1.67 (3) · game -0.17 (6) · slam -2.00 (1)

By role: declaring +1.02/bd (-2.46 vs par · 11) · defending -1.52/bd (-1.00 vs par · 5)

By vulnerability: vulnerable -0.19/bd (-4.62 vs par · 8) · not vulnerable +0.64/bd (+0.62 vs par · 8)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
QuarterfinalY.WuA.Gromov – A.DubininClosed16+3.6+0.23-2.00

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
+10.4QuarterfinalRUSSIA296♦♣4=-2
+5.0QuarterfinalRUSSIA182♦♠A+4+7
+3.4QuarterfinalRUSSIA174♥♣K+1+0
+3.1QuarterfinalRUSSIA304♠x♦7-1+0
+0.7QuarterfinalRUSSIA233N♣10+2-12
+0.3QuarterfinalRUSSIA211N♣4+2+1
-0.0QuarterfinalRUSSIA263N♠10+1+0
-0.3QuarterfinalRUSSIA193N♣7+2-13
-0.6QuarterfinalRUSSIA284♠♥5-3+0
-0.7QuarterfinalRUSSIA223N♣J=+1
-1.4QuarterfinalRUSSIA245♦♠3-1-2
-1.9QuarterfinalRUSSIA254♥♥4=+1
-2.1QuarterfinalRUSSIA313N♠4+1-1
-2.6QuarterfinalRUSSIA275♥♠A-2+0
-3.6QuarterfinalRUSSIA321♠+1-5
-6.1QuarterfinalRUSSIA201♠♥6-2-7