LIU Yunqing · CHINA HOBBY

205rank
-15.6Butler · 56 bds
-0.28per board
±4.1swing
-0.80vs par /bd
+0.06adjusted /bd
Butler per round: -4.9 -4.9 -10.7 -10.7by round

vs par split: bidding -0.89 · play +0.09

Strength of schedule: opponents averaged +0.34/bd (a tough draw) → opponent-adjusted +0.06/bd

Card play — on target: opening leads 88.2% · declarer play 92.9% · defence 90.6%

Card play by contract type — on target
vs NTvs a suit
Opening leads66.7% (3)92.9% (14)
Declarer play·92.9% (14)
Defence83.3% (6)92.3% (26)

Opening leads by suit led: ♠ 66.7% (3) · ♥ 100.0% (6) · ♦ 87.5% (8)

vs par by strain: NT +1.71 (7) · a suit -1.16 (49)

vs par by level: part-score -0.09 (23) · game -0.70 (27) · slam -4.00 (6)

By role: declaring -0.28/bd (-2.79 vs par · 24) · defending -0.28/bd (+0.69 vs par · 32)

By vulnerability: vulnerable +0.46/bd (-0.11 vs par · 28) · not vulnerable -1.01/bd (-1.50 vs par · 28)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round of 64Y.ZhangT.Helness – G.HelnessClosed14-8.8-0.63+0.71
Round of 64Y.ZhangT.Helness – G.HelnessClosed14+3.9+0.28+0.14
Round of 32Y.ZhangD.Rosenberg – M.RosenbergOpen14-18.8-1.34-3.71
Round of 32Y.ZhangM.Rosenberg – D.RosenbergClosed14+8.1+0.58-0.36

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
+10.2Round of 32MANFIELD254♦x♦K-2+12
+8.4Round of 64WARD PLATT214♠♣Q-1+11
+6.7Round of 32MANFIELD264♠♦4-1+6
+6.1Round of 64WARD PLATT254♥♦2+1+1
+5.7Round of 64WARD PLATT154♠x♥A-3+5
+4.5Round of 32MANFIELD154♥x♣K-1+0
+4.3Round of 64WARD PLATT33♣♦K-1+6
+4.3Round of 32MANFIELD204♠x♦A=+4
+4.1Round of 64WARD PLATT183♥♣A=+1
+4.0Round of 64WARD PLATT163NT♠2=+0
+3.5Round of 64WARD PLATT102♠♦K+1+1
+2.9Round of 64WARD PLATT41♠♥8=+5
+2.9Round of 32MANFIELD35♠♥A=+0
+2.9Round of 32MANFIELD194♠♣Q+1+0
+2.8Round of 64WARD PLATT12♠♦3-1+5
+2.4Round of 64WARD PLATT142♠♥4-1+5
+1.3Round of 32MANFIELD103♥♦7-1+0
+1.3Round of 32MANFIELD215♦♥2-2-5
+1.2Round of 32MANFIELD23♥♣8=+0
+1.0Round of 64WARD PLATT192♦♠5=-1
+0.8Round of 64WARD PLATT234♠♦K=+1
+0.7Round of 32MANFIELD133♣♦4-2-2
+0.4Round of 32MANFIELD54♠♣6+1+0
+0.4Round of 32MANFIELD124♠♦Q=+0
+0.4Round of 32MANFIELD162♠♥2+2-1
-0.2Round of 64WARD PLATT123NT♣7+2+11
-0.2Round of 64WARD PLATT203NT♠4+2+0
-0.3Round of 32MANFIELD233NT♥6+1+0
-0.5Round of 32MANFIELD71NT♠6=+1
-0.9Round of 64WARD PLATT22♥♣3+2-1
-1.0Round of 64WARD PLATT62♠♦J+1-7
-1.1Round of 32MANFIELD246NT♣J=+0
-1.2Round of 64WARD PLATT54♥♠4=+1
-1.5Round of 32MANFIELD93♠♦4-3-8
-1.5Round of 32MANFIELD183NT♠6+1+0
-1.7Round of 64WARD PLATT71♠♥A-1+0
-1.7Round of 32MANFIELD63♣♥Q-1-3
-1.9Round of 64WARD PLATT272♠♦K=+0
-2.1Round of 32MANFIELD274♥♠J-1-4
-2.2Round of 64WARD PLATT263♠♣A-1-5
-2.3Round of 64WARD PLATT114♥♦10=-3
-2.3Round of 32MANFIELD46♠♦J+1-13
-2.5Round of 64WARD PLATT92♥♠3-1+2
-2.9Round of 64WARD PLATT172♥♠Q=-5
-3.1Round of 32MANFIELD284♠♣A-1-12
-3.3Round of 32MANFIELD84♥♦2-1-5
-3.7Round of 64WARD PLATT244♥♦K-2-6
-3.9Round of 32MANFIELD12♠♣A+1-7
-5.5Round of 32MANFIELD114♥♠8+1-4
-5.6Round of 32MANFIELD224♠x♥K-2-5
-6.5Round of 64WARD PLATT226♠♥A=+0
-6.7Round of 64WARD PLATT84♥♣2-1-14
-7.0Round of 32MANFIELD146♥♦A=-11
-8.2Round of 64WARD PLATT134♥♦9=-1
-8.5Round of 32MANFIELD177♠♣A=+0
-8.8Round of 64WARD PLATT287♣♣4=+0