CAI Zixi · CHINA RDFZ1

19rank
+24.9Butler · 40 bds
+0.62per board
±4.7swing
+1.40vs par /bd · #5/61
+0.56adjusted /bd
Butler per round: 35.5 -23.6 8.8 4.2by round

vs par split: bidding +0.57 · play +0.82

Strength of schedule: opponents averaged -0.06/bd (an easy draw) → opponent-adjusted +0.56/bd

Card play — on target: opening leads 100.0% #1 of 60 · declarer play 84.6% #11 of 60 · defence 73.7% #46 of 61

Card play by contract type — on target
vs NTvs a suit
Opening leads100.0% (3)100.0% (6)
Declarer play80.0% (5)87.5% (8)
Defence66.7% (6)76.9% (13)

Opening leads by suit led: ♠ 100.0% (4) · ♥ 100.0% (2) · ♦ 100.0% (1) · ♣ 100.0% (2)

vs par by strain: NT +0.42 (12) · a suit +1.82 (28)

vs par by level: part-score +1.50 (18) · game +0.71 (21) · slam +14.00 (1)

By role: declaring +0.09/bd (-0.38 vs par · 21) · defending +1.21/bd (+3.37 vs par · 19)

By vulnerability: vulnerable +1.06/bd (+1.90 vs par · 19) · not vulnerable +0.23/bd (+0.95 vs par · 21)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1Y.DingZ.Zhuo – Z.ZhuoClosed10+35.5+3.55+5.00
Round 3Y.DingY.Lee – M.WuOpen10-23.6-2.36-2.40
Round 5Y.DingM.Rieger – L.NordmannClosed10+8.8+0.88+3.30
Round 8Y.DingY.Huang – Y.LanOpen10+4.2+0.42-0.30

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
+12.7Round 1CHINA RDFZ236NT♠J-3+14
+12.4Round 1CHINA RDFZ245♦x♠K-3+14
+7.7Round 5GERMANY114♠♦2-2+11
+7.5Round 5GERMANY173♦♠A+1+11
+6.8Round 1CHINA RDFZ254♥♣A+1+13
+4.6Round 5GERMANY152♠♣8+2+10
+4.5Round 1CHINA RDFZ2101♠♥A+1+6
+4.3Round 8CHINESE TAIPEI WHITE184♥♦8=+3
+4.1Round 5GERMANY162NT♣J-3+7
+3.9Round 1CHINA RDFZ282♣♦A+1+5
+3.3Round 5GERMANY194♠♦J+1+0
+3.2Round 8CHINESE TAIPEI WHITE152♠♣A+1+1
+2.3Round 1CHINA RDFZ263NT♥Q-3-3
+2.3Round 8CHINESE TAIPEI WHITE205♠♥A=+0
+1.1Round 8CHINESE TAIPEI WHITE161NT♥4-2+2
+1.0Round 8CHINESE TAIPEI WHITE141NT♠3+1+0
+0.9Round 3CHINESE TAIPEI BLUE301NT♠3+1+0
+0.8Round 5GERMANY133NT♦5-2+2
+0.6Round 3CHINESE TAIPEI BLUE222♣♠3=+0
+0.5Round 1CHINA RDFZ224♥♣5-2+6
+0.4Round 5GERMANY144♠♣J+1+11
+0.3Round 8CHINESE TAIPEI WHITE111NT♦3=-1
-0.2Round 3CHINESE TAIPEI BLUE283♠♥K+1-2
-0.2Round 8CHINESE TAIPEI WHITE132♥♦8-1+0
-0.3Round 3CHINESE TAIPEI BLUE252♠♥6+1+1
-1.3Round 8CHINESE TAIPEI WHITE124♥♠7+1-1
-1.6Round 1CHINA RDFZ213NT♠3-2+0
-1.8Round 3CHINESE TAIPEI BLUE243♦♣A+1+0
-1.8Round 8CHINESE TAIPEI WHITE194♠♣9+2-1
-2.5Round 1CHINA RDFZ294♠♣K-1-5
-2.6Round 3CHINESE TAIPEI BLUE232♣♠A+3-7
-3.1Round 3CHINESE TAIPEI BLUE274♠♦2=+0
-3.5Round 1CHINA RDFZ272NT♦K=+0
-4.3Round 5GERMANY205♣♦6=+1
-4.7Round 8CHINESE TAIPEI WHITE174♠♥A-2-6
-5.0Round 3CHINESE TAIPEI BLUE264♠♠5=+0
-5.5Round 3CHINESE TAIPEI BLUE293NT♠A-3-10
-6.6Round 3CHINESE TAIPEI BLUE212NT♣4-3-6
-7.1Round 5GERMANY184♠♥4-2-6
-8.2Round 5GERMANY124♥♣6+3-14