CHEN Dawei · YEH MIX

35rank
-50.0Butler · 48 bds
-1.04per board
±4.5swing
-0.60vs par /bd
-0.83adjusted /bd
Butler per round: -50 -50 -50by round

vs par split: bidding -0.04 · play -0.64

Strength of schedule: opponents averaged +0.21/bd (a tough draw) → opponent-adjusted -0.83/bd

Card play — on target: opening leads 84.6% · declarer play 72.7% · defence 93.8%

Card play by contract type — on target
vs NTvs a suit
Opening leads·84.6% (13)
Declarer play83.3% (6)68.8% (16)
Defence50.0% (2)100.0% (14)

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

vs par by strain: NT -3.36 (11) · a suit +0.14 (36)

vs par by level: part-score +2.00 (16) · game -2.21 (29) · slam +0.00 (2)

By role: declaring -0.33/bd (-1.71 vs par · 31) · defending -2.56/bd (+1.31 vs par · 16)

By vulnerability: vulnerable -1.64/bd (-1.88 vs par · 24) · not vulnerable -0.44/bd (+0.67 vs par · 24)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
QuarterfinalM.SunJ.Jansma – G.PaulissenOpen16-15.7-0.98+0.56
QuarterfinalM.SunR.Ritmeijer – M.TichaClosed16-20.5-1.28-2.06
QuarterfinalM.SunJ.Jansma – G.PaulissenOpen16-13.8-0.86-0.31

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
+9.7QuarterfinalWHITE HOUSE223NT♣2=+10
+8.0QuarterfinalWHITE HOUSE416♣♥5=+10
+6.4QuarterfinalWHITE HOUSE154♥♥2-3+7
+4.3QuarterfinalWHITE HOUSE14♠x♦K=+12
+4.3QuarterfinalWHITE HOUSE403NT♦Q-1+2
+3.7QuarterfinalWHITE HOUSE442♠♥Q+5+5
+3.6QuarterfinalWHITE HOUSE433♠♥Q=+1
+2.9QuarterfinalWHITE HOUSE133♥x♦J-1+7
+2.9QuarterfinalWHITE HOUSE271NT♠10+3+2
+2.7QuarterfinalWHITE HOUSE35♦♦3+1+1
+1.7QuarterfinalWHITE HOUSE21♠♣4+1+6
+1.6QuarterfinalWHITE HOUSE182♥♣K=+5
+1.4QuarterfinalWHITE HOUSE84♠♥4=+1
+1.4QuarterfinalWHITE HOUSE244♠♥9-1+4
+1.4QuarterfinalWHITE HOUSE422♥♠A=+9
+1.3QuarterfinalWHITE HOUSE12Pass+3
+0.9QuarterfinalWHITE HOUSE314♠♠4+2+1
+0.7QuarterfinalWHITE HOUSE143♦x♣5-2-3
+0.7QuarterfinalWHITE HOUSE202♠♥J=+0
+0.7QuarterfinalWHITE HOUSE354♥♣10+1+0
+0.4QuarterfinalWHITE HOUSE331NT♦4=-1
+0.1QuarterfinalWHITE HOUSE393♠♣10-1+9
-0.0QuarterfinalWHITE HOUSE294♠♥K+1+0
-0.1QuarterfinalWHITE HOUSE284♥♣3+1+0
-0.4QuarterfinalWHITE HOUSE44♥♠4+2+13
-0.6QuarterfinalWHITE HOUSE455♥x♠2-1-9
-1.0QuarterfinalWHITE HOUSE254♠♥Q-1-12
-1.1QuarterfinalWHITE HOUSE111NT♦K-2+1
-1.7QuarterfinalWHITE HOUSE53NT♣Q-2-13
-2.0QuarterfinalWHITE HOUSE381NT♦7+1+0
-2.7QuarterfinalWHITE HOUSE486NT♣3+1-10
-3.1QuarterfinalWHITE HOUSE264♠x♥6-1-13
-3.7QuarterfinalWHITE HOUSE64♠♥3=+1
-3.7QuarterfinalWHITE HOUSE164♠♥K+1+0
-3.9QuarterfinalWHITE HOUSE375♦x♦7-1-2
-4.4QuarterfinalWHITE HOUSE174♥♠K=+0
-4.4QuarterfinalWHITE HOUSE472♠♥7-1-6
-5.0QuarterfinalWHITE HOUSE94♠♥A=+0
-5.0QuarterfinalWHITE HOUSE325♣♥A-3-9
-5.0QuarterfinalWHITE HOUSE363NT♦5=-13
-5.1QuarterfinalWHITE HOUSE194♠♦J-2-7
-5.3QuarterfinalWHITE HOUSE212NT♠10=+0
-6.1QuarterfinalWHITE HOUSE304♠♦Q-3-11
-6.9QuarterfinalWHITE HOUSE75♣♥Q-1-12
-7.6QuarterfinalWHITE HOUSE232♠♦K-2-3
-8.0QuarterfinalWHITE HOUSE344♥♣5+1+0
-9.4QuarterfinalWHITE HOUSE464♠♦K+1+0
-14.6QuarterfinalWHITE HOUSE103NTx♦4+3-15