CAO Si Wei · WUHAN JIANG AN AREA

422rank
-18.7Butler · 110 bds
-0.17per board
±4.7swing
-0.25vs par /bd · #385/567
-0.31adjusted /bd
Butler per round: -21.6 -26.6 12.4 -8.7 -17.4 17.4 3.6 11.9 21.2 3.1 -14by round

vs par split: bidding +0.10 · play -0.34

Strength of schedule: opponents averaged -0.14/bd (an easy draw) → opponent-adjusted -0.31/bd

Card play — on target: opening leads 85.7% #131 of 567 · declarer play 82.6% #152 of 567 · defence 77.1% #484 of 567

Card play by contract type — on target
vs NTvs a suit
Opening leads80.0% (5)87.0% (23)
Declarer play60.0% (5)88.9% (18)
Defence75.0% (12)77.8% (36)

Opening leads by suit led: ♠ 83.3% (6) · ♥ 83.3% (6) · ♦ 87.5% (8) · ♣ 87.5% (8)

vs par by strain: NT -1.17 (29) · a suit +0.09 (81)

vs par by level: part-score +0.10 (41) · game -0.91 (63) · slam +4.33 (6)

By role: declaring -0.95/bd (-2.05 vs par · 62) · defending +0.83/bd (+2.08 vs par · 48)

By vulnerability: vulnerable +0.70/bd (+1.05 vs par · 57) · not vulnerable -1.11/bd (-1.64 vs par · 53)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1C.ZhangW.He – S.LiuOpen10-21.6-2.16-1.80
Round 2X.GuoY.Hu – H.ZhangOpen10-26.6-2.66-4.70
Round 3X.GuoH.Kim – E.YeaOpen10+12.4+1.24+2.50
Round 5S.LiuP.Mathieu – D.RotchellOpen10-8.7-0.87-1.60
Round 8X.GuoX.Zhu – J.YaoOpen10-17.4-1.74-1.60
Round 9X.GuoJ.Zhang – Y.DuanOpen10+17.4+1.74+4.60
Round 10X.GuoF.Ye – X.WuOpen10+3.6+0.36+2.60
Round 11C.ZhangF.Mcquaker – E.McgowanOpen10+11.9+1.19+0.90
Round 12C.ZhangJ.Lu – J.LiOpen10+21.2+2.12+0.90
Round 14C.ZhangJ.Wilkinson – S.NewtonOpen10+3.1+0.31-1.10
Round 15C.ZhangZ.Shen – W.GuoOpen10-14.0-1.40-3.40

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
+10.3Round 5CARIBBEAN PIRATES136♥♣10-3+14
+10.2Round 9BRIDGEFRIENDS262♦♣5+3+15
+9.2Round 15HUBEI FUXING294♥x♠7=+7
+9.1Round 3ENSEMBLE214♥♥5-3+12
+8.5Round 12TIANYA BRIDGE FATE286♥♠6-1+14
+8.0Round 1ZHONGSHAN JIEGAO44♥♦9=+10
+8.0Round 9BRIDGEFRIENDS294♠♥A=+10
+7.7Round 3ENSEMBLE285♣♠Q-1+11
+7.6Round 12TIANYA BRIDGE FATE233NT♦2-2+8
+6.8Round 10ZHEJIANG JINJIANG23♠♥A+1+8
+5.9Round 12TIANYA BRIDGE FATE244♠♣3+1+0
+5.8Round 10ZHEJIANG JINJIANG72NT♥3+2+9
+5.2Round 11SCOTMARK134♥♠4=+10
+5.2Round 11SCOTMARK145♣♥8=+7
+5.1Round 11SCOTMARK115♦♣7-1+4
+5.1Round 11SCOTMARK154♠♦5=-1
+5.0Round 3ENSEMBLE295♥♠K-1+1
+4.8Round 5CARIBBEAN PIRATES114♠♥5-1+5
+4.7Round 10ZHEJIANG JINJIANG35♣♥A-1+10
+4.7Round 11SCOTMARK122♥♣K+2+6
+4.1Round 9BRIDGEFRIENDS233NT♥9+1+14
+3.8Round 2HONG PRAISE TEAM163NT♣6=+7
+3.7Round 9BRIDGEFRIENDS283♥♦4=+2
+3.6Round 8MINGXIN GROUP203♥♠6-1+0
+3.4Round 12TIANYA BRIDGE FATE256♥♣A+1-11
+3.2Round 9BRIDGEFRIENDS225♦♣A-1+5
+3.2Round 15HUBEI FUXING212♠♥K=+6
+3.0Round 14PK NZ141NT♣10-1+4
+2.7Round 3ENSEMBLE274♥♦A=+3
+2.7Round 14PK NZ183NT♦4+1+4
+2.4Round 12TIANYA BRIDGE FATE226♣♦9=-2
+2.4Round 14PK NZ133♠♥5=+1
+2.3Round 10ZHEJIANG JINJIANG103♠♦4=+1
+2.2Round 2HONG PRAISE TEAM124♥♣A-3-8
+2.1Round 5CARIBBEAN PIRATES142NT♦J=+6
+1.9Round 14PK NZ113NT♣3=-1
+1.8Round 9BRIDGEFRIENDS304♠♦Q-1+10
+1.7Round 8MINGXIN GROUP185♦♣5=-2
+1.5Round 1ZHONGSHAN JIEGAO23♦♠9+1+0
+1.5Round 8MINGXIN GROUP153NT♣A+2+1
+1.4Round 12TIANYA BRIDGE FATE302NT♥8-1+5
+1.1Round 3ENSEMBLE264♥♠K+2+13
+0.7Round 9BRIDGEFRIENDS254♥♦8+3+10
+0.7Round 14PK NZ153♠♥4+1-7
+0.7Round 14PK NZ193♦♠6-1+0
+0.6Round 1ZHONGSHAN JIEGAO13♠♦9+1+6
+0.4Round 12TIANYA BRIDGE FATE262♦♠K-1+1
+0.3Round 3ENSEMBLE245♦♥9=+2
+0.2Round 11SCOTMARK182♠♣5=+0
-0.0Round 5CARIBBEAN PIRATES121NT♠J-1-2
-0.0Round 8MINGXIN GROUP115♠♥K=+0
+0.0Round 8MINGXIN GROUP143NT♦3+2+0
+0.0Round 10ZHEJIANG JINJIANG86NT♦4=+11
-0.1Round 3ENSEMBLE223NT♦4-1-5
-0.2Round 15HUBEI FUXING243NT♠5+2+0
-0.3Round 1ZHONGSHAN JIEGAO102♠♣Q=-1
-0.3Round 3ENSEMBLE305♥♦9=+0
-0.4Round 11SCOTMARK202♠♥A=+0
-0.5Round 15HUBEI FUXING253NT♠9+1+0
-0.6Round 14PK NZ124♠♦7=+0
-1.0Round 12TIANYA BRIDGE FATE292♠♣3=-1
-1.3Round 5CARIBBEAN PIRATES202♠♣4+2-1
-1.4Round 1ZHONGSHAN JIEGAO92♠♣8=+3
-1.5Round 14PK NZ164♠♥K-1-5
-1.6Round 2HONG PRAISE TEAM131NT♦K+1+0
-1.6Round 5CARIBBEAN PIRATES152♥♠A=-5
-1.7Round 14PK NZ174♠♣6+1+0
-1.9Round 10ZHEJIANG JINJIANG54♥♣K-1+2
-1.9Round 12TIANYA BRIDGE FATE213♦♠9-2-3
-2.1Round 10ZHEJIANG JINJIANG91NT♠6+1-5
-2.2Round 2HONG PRAISE TEAM203♥♥3-1-9
-2.3Round 1ZHONGSHAN JIEGAO32♥♠9+2-1
-2.3Round 9BRIDGEFRIENDS242♠♣K-1+1
-2.4Round 8MINGXIN GROUP163♥♣K-1+2
-2.5Round 15HUBEI FUXING283NT♥K+3-11
-2.7Round 2HONG PRAISE TEAM183♣♦A-1-1
-2.8Round 15HUBEI FUXING305♣♣8-1-5
-2.9Round 3ENSEMBLE231NT♠J-1+0
-3.1Round 1ZHONGSHAN JIEGAO84♠♥4-1-10
-3.2Round 8MINGXIN GROUP174♥x♦3-1+0
-3.3Round 2HONG PRAISE TEAM154♥♣4=-6
-3.3Round 15HUBEI FUXING274♥♦K-1-4
-3.4Round 15HUBEI FUXING233♦♠10-2-3
-3.6Round 2HONG PRAISE TEAM144♦♥5-1+2
-3.6Round 5CARIBBEAN PIRATES194♠♥5-1-5
-3.6Round 10ZHEJIANG JINJIANG13♥♣Q-2+0
-3.6Round 10ZHEJIANG JINJIANG44♠♥5-2-2
-3.9Round 11SCOTMARK171♣♦4=-10
-4.0Round 2HONG PRAISE TEAM174♠♥2-1-10
-4.4Round 5CARIBBEAN PIRATES174♠♣6-1-5
-4.5Round 14PK NZ203♥♣5+1-7
-4.6Round 11SCOTMARK163NT♠3-2-6
-4.7Round 11SCOTMARK193NT♥3+1-1
-4.8Round 10ZHEJIANG JINJIANG64♠♣10-2-8
-4.9Round 9BRIDGEFRIENDS274♠♥A-1-10
-5.1Round 1ZHONGSHAN JIEGAO73NT♥5-1-6
-5.3Round 5CARIBBEAN PIRATES163NT♥3-2-11
-5.5Round 8MINGXIN GROUP133♣♠K-1-6
-5.5Round 12TIANYA BRIDGE FATE274♠♦9+2-2
-6.1Round 8MINGXIN GROUP193NT♥K-3-11
-6.8Round 15HUBEI FUXING262♠♣A=-12
-6.9Round 1ZHONGSHAN JIEGAO54♠♣10-1-10
-6.9Round 15HUBEI FUXING223NT♠5-1-12
-7.0Round 8MINGXIN GROUP126♥♦K=+0
-7.1Round 9BRIDGEFRIENDS214♠x♦A-1-11
-7.3Round 2HONG PRAISE TEAM193NT♦10+1-11
-7.9Round 2HONG PRAISE TEAM114♠♥K-2-11
-9.7Round 5CARIBBEAN PIRATES183NTx♠9-2-12
-10.2Round 3ENSEMBLE254♥♦A=-12
-12.6Round 1ZHONGSHAN JIEGAO63NTx♥5-3-9