SUN Gang · PD TIMES

257rank
-40.5Butler · 70 bds
-0.58per board
±4.4swing
-0.07vs par /bd
-0.27adjusted /bd
Butler per round: -10.4 -10.4 -30.1 -30.1 -30.1by round

vs par split: bidding -0.28 · play +0.04

Strength of schedule: opponents averaged +0.31/bd (a tough draw) → opponent-adjusted -0.27/bd

Card play — on target: opening leads 76.9% · declarer play 73.7% · defence 100.0%

Card play by contract type — on target
vs NTvs a suit
Opening leads100.0% (1)75.0% (12)
Declarer play71.4% (7)75.0% (12)
Defence100.0% (4)100.0% (24)

Opening leads by suit led: ♠ 100.0% (1) · ♥ 100.0% (3) · ♦ 66.7% (3) · ♣ 66.7% (6)

vs par by strain: NT -0.94 (17) · a suit +0.00 (52)

vs par by level: part-score +0.19 (31) · game -0.59 (34) · slam -0.50 (4)

By role: declaring -0.51/bd (-1.76 vs par · 41) · defending -0.80/bd (+2.00 vs par · 28)

By vulnerability: vulnerable -0.49/bd (+0.23 vs par · 35) · not vulnerable -0.66/bd (-0.37 vs par · 35)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round of 64Y.ZhangB.Drijver – B.NabOpen14+10.6+0.76+2.64
Round of 64Y.ZhangB.Nab – B.DrijverClosed14-21.0-1.50-1.71
Round of 32Y.ZhangA.Birman – D.PadonOpen14-12.2-0.87-0.86
Round of 32Y.ZhangD.Padon – A.BirmanClosed14-17.3-1.24-1.21
Round of 32Y.ZhangJ.Verhees – R.Van ProoijenClosed14-0.6-0.04+0.79

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
+10.9Round of 32TULIN514♥♣2=+13
+6.7Round of 64PDC243NT♠8=+7
+6.7Round of 64PDC313♠♦J-2+11
+6.0Round of 64PDC236♦♥3-1+13
+5.7Round of 32TULIN474♠x♥6+1+6
+5.5Round of 32TULIN382♣♦A=+5
+5.4Round of 32TULIN105♦♣2-1+6
+4.6Round of 64PDC173♠♣4=+6
+4.3Round of 32TULIN73NT♠3+1+0
+4.2Round of 64PDC254♥♦A-1+5
+3.9Round of 32TULIN132♥♥5-2+3
+2.8Round of 64PDC352♠♦5+1+7
+2.8Round of 32TULIN342♠♦K+1+6
+2.8Round of 32TULIN374♣♥A=+0
+2.7Round of 32TULIN5Adj♠8+11
+2.5Round of 32TULIN323♥♠9-3-5
+2.3Round of 32TULIN123NT♣Q+1+0
+2.0Round of 32TULIN494♠♥2-1+6
+1.8Round of 32TULIN291NT♦Q=-1
+1.5Round of 64PDC422NT♥8+1+0
+1.5Round of 32TULIN533NT♥3-1+6
+1.4Round of 32TULIN302♦♣4=+7
+1.4Round of 32TULIN552♦♠J=+5
+0.9Round of 64PDC384♥♣6+2+1
+0.9Round of 64PDC404♠♦J+2+11
+0.8Round of 32TULIN111NT♠Q-1+2
+0.6Round of 64PDC201NT♠9+1+1
+0.6Round of 64PDC213♥♦10+1+8
+0.4Round of 64PDC194♠♥K+1+0
+0.4Round of 32TULIN42♠♦Q+1-10
+0.4Round of 32TULIN331NT♠10=+0
+0.4Round of 32TULIN392♠♦7-1+1
+0.3Round of 32TULIN314♥♠A+1+1
+0.2Round of 64PDC412♠♥5+1+0
+0.2Round of 32TULIN444♥♠Q=-1
+0.1Round of 64PDC181NT♣K+1-1
+0.1Round of 64PDC264♠♥5+1+0
+0.1Round of 64PDC304♠♦Q=+0
-0.5Round of 32TULIN463NT♥6=+0
-0.7Round of 64PDC164♥♠5=+11
-0.8Round of 64PDC152NT♠J-1+2
-0.8Round of 32TULIN543NT♠A-1-12
-1.0Round of 64PDC273♣♦3=+5
-1.0Round of 32TULIN504♥♦J=+0
-1.4Round of 64PDC283NT♠4-1-10
-1.5Round of 32TULIN83♥♣A+1+4
-1.7Round of 32TULIN521NT♥J+1+0
-1.8Round of 64PDC373♥♠7-1-4
-1.8Round of 32TULIN94♠♣K+2-1
-1.8Round of 32TULIN364♠♣A+1-4
-1.8Round of 32TULIN434♥♣3-2+5
-2.0Round of 64PDC393♦♠2-1-5
-2.2Round of 32TULIN146♠♣5+1-1
-3.4Round of 32TULIN64♥♦K=+0
-3.6Round of 32TULIN452NT♠9-1-5
-3.7Round of 64PDC364♠♣10-3-6
-4.0Round of 32TULIN34♥♦A+1-1
-4.3Round of 64PDC342♦x♣K=-12
-4.5Round of 32TULIN352NT♥A-3-5
-5.1Round of 32TULIN485♦♣Q-1-12
-5.7Round of 64PDC324♥x♦7-1-8
-7.1Round of 64PDC333♥♦6-3-9
-7.8Round of 32TULIN567♠♣Q=+0
-8.4Round of 32TULIN404♠♥Q+2-13
-8.5Round of 32TULIN27♥♠Q-1-14
-8.8Round of 64PDC222♥♥3+2-10
-9.5Round of 64PDC294♠♥K-1-10
-9.8Round of 32TULIN414♥♠A=+0
-10.6Round of 32TULIN14♥♦A=-11
-10.7Round of 32TULIN425♣x♠A-4-9