🇹🇼 CHANG Chih Hsuan · CHINESE TAIPEI

39rank
-91.6Butler · 192 bds
-0.48per board
±5.0swing
-0.84vs par /bd · #42/53
-0.41adjusted /bd
Butler per round: -22.7 -12.3 -3 -26.6 -11.4 -6.9 -19 -17.9 18 30.4 16.8 -37by round

vs par split: bidding -0.54 · play -0.31

Strength of schedule: opponents averaged +0.07/bd (a tough draw) → opponent-adjusted -0.41/bd

Card play — on target: opening leads 76.2% #35 of 53 · declarer play 68.2% #39 of 53 · defence 88.0% #9 of 53

Card play by contract type — on target
vs NTvs a suit
Opening leads80.0% (15)74.1% (27)
Declarer play40.0% (15)82.8% (29)
Defence86.2% (29)88.9% (63)

Opening leads by suit led: ♠ 80.0% (5) · ♥ 70.0% (20) · ♦ 87.5% (8) · ♣ 77.8% (9)

vs par by strain: NT -0.83 (66) · a suit -0.85 (126)

vs par by level: part-score -0.57 (67) · game -0.74 (106) · slam -2.37 (19)

By role: declaring -0.13/bd (-3.23 vs par · 100) · defending -0.86/bd (+1.75 vs par · 92)

By vulnerability: vulnerable -0.34/bd (-0.89 vs par · 96) · not vulnerable -0.62/bd (-0.80 vs par · 96)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1S.MiaoM.Chavarria – F.LanzuisiClosed16-22.7-1.42-0.81
Round 2S.MiaoM.Petersen – C.WahlestedtOpen16-12.3-0.77-2.62
Round 4S.MiaoY.Liu – X.ShanOpen16-3.0-0.19-0.75
Round 6S.MiaoS.Shi – L.OrtegaClosed16-26.6-1.66-3.94
Round 7S.MiaoY.Grasella – V.RosaOpen16-11.4-0.71+0.94
Round 9S.MiaoC.Chaugny – C.PuilletOpen16-6.9-0.43-2.00
Round 11S.MiaoF.Lanzuisi – M.ChavarriaClosed16-19.0-1.19-1.69
Round 12S.MiaoD.Kazmucha – N.SakowskaOpen16-17.9-1.12-1.19
Round 14S.MiaoE.Pattison – P.GardinerOpen16+18.0+1.12+1.44
Round 15S.MiaoM.Linz – R.WernisOpen16+30.4+1.90-0.69
Round 16S.MiaoY.Grasella – V.RosaClosed16+16.8+1.05+3.31
Round 17S.MiaoJ.Westerbeek – J.DuursmaClosed16-37.0-2.31-2.12

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
+13.1Round 12🇵🇱 POLAND103♠x♦6+1+12
+12.2Round 14OCEANIA23NT♥K-4+14
+11.7Round 11🇮🇹 ITALY43NT♠A=+0
+11.3Round 16🇮🇩 INDONESIA96♠♦4=+11
+9.2Round 9🇫🇷 FRANCE74NT♦7+1+0
+9.0Round 15🇺🇸 USA103NT♠6-2+17
+7.2Round 1🇮🇹 ITALY54♥♣9+1+0
+7.1Round 14OCEANIA66♠♣7+1-13
+7.1Round 17🇳🇱 NETHERLANDS133♠♥4-1+12
+6.9Round 16🇮🇩 INDONESIA36♥♠A-2+12
+6.7Round 9🇫🇷 FRANCE54♠♠4-1+10
+6.7Round 14OCEANIA135♣♣4-3+5
+6.6Round 4🇨🇳 CHINA73NT♣4-2+7
+6.4Round 2🇸🇪 SWEDEN124♠♥4+2+14
+6.3Round 11🇮🇹 ITALY14♠♥K-3+10
+6.3Round 14OCEANIA14♠x♠4=+7
+6.1Round 2🇸🇪 SWEDEN134♠♠7=+0
+5.8Round 2🇸🇪 SWEDEN163NT♥A-2+7
+5.6Round 4🇨🇳 CHINA36♥♣4=-13
+5.6Round 9🇫🇷 FRANCE154♠♥10-1+5
+5.3Round 4🇨🇳 CHINA144♥♠K+1+0
+5.3Round 15🇺🇸 USA154♥x♠Q+2-6
+5.3Round 15🇺🇸 USA163♠♦J=+6
+5.1Round 16🇮🇩 INDONESIA45♥♣A-4+6
+5.1Round 16🇮🇩 INDONESIA73♦♣4-1+6
+5.0Round 2🇸🇪 SWEDEN13♦♠7+1+0
+5.0Round 15🇺🇸 USA134♥♠K-1+6
+4.7Round 6🇺🇸 USA92♥♦10+1+6
+4.6Round 15🇺🇸 USA44♥♠4=-13
+4.4Round 9🇫🇷 FRANCE43NT♠Q=-1
+4.4Round 15🇺🇸 USA83♥♠J=+1
+4.3Round 4🇨🇳 CHINA15♦♥6+1+0
+4.3Round 15🇺🇸 USA141NT♦K-2+11
+4.2Round 17🇳🇱 NETHERLANDS84♥♠4+1+1
+4.1Round 1🇮🇹 ITALY153♣♥K-1+4
+4.1Round 14OCEANIA102♠♣J+1+6
+4.0Round 16🇮🇩 INDONESIA114♠x♥4-1+11
+3.8Round 4🇨🇳 CHINA124♠♥5=+0
+3.7Round 17🇳🇱 NETHERLANDS104♥♣K-1+13
+3.4Round 16🇮🇩 INDONESIA126NT♥10+1+1
+3.2Round 12🇵🇱 POLAND63NT♦9+2+0
+3.2Round 14OCEANIA113NT♥2=+0
+3.2Round 16🇮🇩 INDONESIA146♦♠7-1+10
+3.1Round 2🇸🇪 SWEDEN81NT♠10=+0
+3.1Round 4🇨🇳 CHINA64♠♥2+1+0
+3.1Round 9🇫🇷 FRANCE63♥♦2=+0
+3.0Round 16🇮🇩 INDONESIA53♠♥8=+1
+2.9Round 9🇫🇷 FRANCE82♥♦5+1+1
+2.7Round 6🇺🇸 USA51♠♥K+1+0
+2.7Round 7🇮🇩 INDONESIA63NT♠9=+7
+2.7Round 7🇮🇩 INDONESIA83NT♥6+1+0
+2.4Round 7🇮🇩 INDONESIA152♠♠3=+7
+2.4Round 11🇮🇹 ITALY54♠♥6-1+6
+2.3Round 4🇨🇳 CHINA56♠♣4+1+13
+2.3Round 14OCEANIA141NT♠2+2+2
+2.1Round 17🇳🇱 NETHERLANDS73NT♥6=-1
+2.0Round 14OCEANIA72♦x♥K-1+9
+1.9Round 15🇺🇸 USA122♦♥10-2+0
+1.8Round 9🇫🇷 FRANCE106♠♠5+1+1
+1.8Round 12🇵🇱 POLAND81NT♣6-1+2
+1.8Round 14OCEANIA54♠♦2+2+1
+1.8Round 15🇺🇸 USA22♠♥10-2+0
+1.6Round 7🇮🇩 INDONESIA42♠♦K-2+2
+1.3Round 7🇮🇩 INDONESIA133♦x♥J-1+0
+1.2Round 6🇺🇸 USA111NT♣J=-2
+1.1Round 7🇮🇩 INDONESIA125♣x♥K-1+6
+1.1Round 17🇳🇱 NETHERLANDS34♥♠J-1-2
+1.0Round 14OCEANIA121NT♠Q-1+0
+0.9Round 1🇮🇹 ITALY43NT♦J+2+0
+0.9Round 7🇮🇩 INDONESIA162♠♦K=+5
+0.9Round 17🇳🇱 NETHERLANDS123NT♠2=+0
+0.8Round 7🇮🇩 INDONESIA103NT♥8=-2
+0.7Round 7🇮🇩 INDONESIA141NT♥3+1-7
+0.6Round 1🇮🇹 ITALY74♥♣10=+0
+0.4Round 4🇨🇳 CHINA24♠♣J=-1
+0.4Round 6🇺🇸 USA23♠♣8+1-4
+0.4Round 7🇮🇩 INDONESIA93NT♥5-1+12
+0.3Round 4🇨🇳 CHINA83♠♦K=-7
+0.3Round 9🇫🇷 FRANCE93♦♥J+1+0
+0.3Round 11🇮🇹 ITALY94♥♠8+1+0
+0.2Round 1🇮🇹 ITALY63NT♥3+1+0
+0.2Round 1🇮🇹 ITALY104♥♣4+1+0
+0.2Round 6🇺🇸 USA161NT♣Q+1+0
+0.1Round 9🇫🇷 FRANCE123NT♥6+4+10
+0.1Round 11🇮🇹 ITALY154♠♦8+1+0
+0.1Round 17🇳🇱 NETHERLANDS16♦♠8-1-4
+0.0Round 2🇸🇪 SWEDEN143NT♠6=-1
+0.0Round 2🇸🇪 SWEDEN154♠♦2=+0
+0.0Round 6🇺🇸 USA155♣♠2+1+2
-0.0Round 11🇮🇹 ITALY161NT♠2=-1
+0.0Round 15🇺🇸 USA114♥♠3=+3
+0.0Round 16🇮🇩 INDONESIA151NT♠A-1+0
-0.1Round 2🇸🇪 SWEDEN32♠♥K=+0
-0.1Round 12🇵🇱 POLAND23NT♥4+3+13
-0.2Round 9🇫🇷 FRANCE143NT♥8+2-11
-0.2Round 12🇵🇱 POLAND54♥♣3+1+0
-0.2Round 15🇺🇸 USA33NT♦A-2-5
-0.3Round 4🇨🇳 CHINA154♥♣A=+0
-0.3Round 6🇺🇸 USA64♥♣3+1-11
-0.3Round 12🇵🇱 POLAND92♥♥J=+0
-0.3Round 12🇵🇱 POLAND164♥♣A+1+0
-0.3Round 16🇮🇩 INDONESIA14♠x♦A-2+0
-0.4Round 7🇮🇩 INDONESIA25♥♦10-1-9
-0.6Round 2🇸🇪 SWEDEN103NT♥Q+1-12
-0.6Round 12🇵🇱 POLAND115♣♣5+1-1
-0.7Round 2🇸🇪 SWEDEN62♠♥5+1-7
-0.7Round 6🇺🇸 USA41NT♣8-1+0
-0.7Round 17🇳🇱 NETHERLANDS153NT♠K+2-1
-0.8Round 7🇮🇩 INDONESIA12♦♣3-1+2
-0.8Round 14OCEANIA33NT♠3+2-1
-0.8Round 15🇺🇸 USA62♥♣9+1-6
-0.9Round 1🇮🇹 ITALY21NT♣10-1-5
-0.9Round 7🇮🇩 INDONESIA51NT♥3-3+2
-0.9Round 15🇺🇸 USA72♥♦4-1-1
-1.1Round 17🇳🇱 NETHERLANDS53NT♥9+1+0
-1.2Round 6🇺🇸 USA123NT♥7+1+1
-1.2Round 6🇺🇸 USA133♦♠J-1-1
-1.2Round 15🇺🇸 USA52NT♠3=-1
-1.4Round 14OCEANIA154♥♥8+2+1
-1.4Round 16🇮🇩 INDONESIA161NT♥3+1+6
-1.6Round 1🇮🇹 ITALY32♦♠7-1-5
-1.6Round 4🇨🇳 CHINA43NT♥5-1+6
-1.6Round 9🇫🇷 FRANCE14♥♥7+2-2
-1.6Round 11🇮🇹 ITALY24♠♣Q+1+0
-1.6Round 12🇵🇱 POLAND42♠♦8=+1
-1.6Round 16🇮🇩 INDONESIA61NT♠9=-1
-1.7Round 6🇺🇸 USA81NT♠3-1-4
-1.7Round 12🇵🇱 POLAND135♠♦A+2-11
-1.8Round 11🇮🇹 ITALY113♦♠A-1-10
-1.8Round 11🇮🇹 ITALY145♦x♦8-2+4
-2.0Round 1🇮🇹 ITALY111NT♦4=+1
-2.0Round 11🇮🇹 ITALY34♥♦Q+1-1
-2.1Round 12🇵🇱 POLAND144♥♥7+2-1
-2.2Round 7🇮🇩 INDONESIA36NT♥10+1+13
-2.3Round 15🇺🇸 USA93♦♥Q+2-12
-2.4Round 1🇮🇹 ITALY94♥♥2-1+2
-2.4Round 11🇮🇹 ITALY132♠♥7+1+0
-2.8Round 2🇸🇪 SWEDEN112♥♦4+2+6
-2.8Round 4🇨🇳 CHINA135♦♠K=-2
-2.9Round 1🇮🇹 ITALY12♠♥K-1-4
-3.0Round 2🇸🇪 SWEDEN76NT♥9-1-13
-3.1Round 1🇮🇹 ITALY165♣♠4=+1
-3.1Round 4🇨🇳 CHINA101NT♦4+1+0
-3.3Round 6🇺🇸 USA144♠x♥3-1-8
-3.3Round 11🇮🇹 ITALY103♦♠A-1-6
-4.2Round 17🇳🇱 NETHERLANDS43♦x♦A-2-4
-4.3Round 12🇵🇱 POLAND32♦♣K+1-5
-4.3Round 16🇮🇩 INDONESIA105♥♣3=+0
-4.3Round 16🇮🇩 INDONESIA132♦♥8+1+1
-4.4Round 11🇮🇹 ITALY62♥♣Q-4-10
-4.4Round 16🇮🇩 INDONESIA83NT♥6-2-5
-4.7Round 2🇸🇪 SWEDEN94♠♥9-2+1
-4.7Round 6🇺🇸 USA73NT♠Q-1-12
-4.7Round 9🇫🇷 FRANCE23NT♣K-1-6
-4.8Round 1🇮🇹 ITALY82♥♣5=-6
-4.8Round 6🇺🇸 USA104♠♠6-1-6
-4.9Round 11🇮🇹 ITALY82♥♣7-2-6
-4.9Round 14OCEANIA43♠♥Q=+0
-5.0Round 1🇮🇹 ITALY136♥♦8+1-1
-5.1Round 2🇸🇪 SWEDEN43NT♠5-1-5
-5.1Round 12🇵🇱 POLAND125♥♣A=-11
-5.2Round 12🇵🇱 POLAND155♠♥A-2-7
-5.3Round 17🇳🇱 NETHERLANDS146♥♦7-3-15
-5.7Round 4🇨🇳 CHINA115♣♥A=+0
-5.7Round 14OCEANIA163NT♥8=+1
-5.8Round 1🇮🇹 ITALY143NT♥5+1+0
-5.8Round 15🇺🇸 USA16NT♣A-1-11
-6.3Round 6🇺🇸 USA15♣x♣Q-1-11
-6.6Round 9🇫🇷 FRANCE165♦♥10-1-10
-6.7Round 14OCEANIA96♥♣8=+0
-6.8Round 4🇨🇳 CHINA94♥♠K=+0
-6.8Round 12🇵🇱 POLAND13NT♣5-2-11
-6.8Round 17🇳🇱 NETHERLANDS93NT♦4-2-13
-7.2Round 17🇳🇱 NETHERLANDS24♥♥2=-3
-7.3Round 11🇮🇹 ITALY74♥♣Q=+0
-7.4Round 1🇮🇹 ITALY123NT♠5+1+0
-7.7Round 12🇵🇱 POLAND73NT♦J=+0
-8.0Round 17🇳🇱 NETHERLANDS114♥♣5-1-14
-8.1Round 9🇫🇷 FRANCE113NT♣6=-7
-8.8Round 17🇳🇱 NETHERLANDS66♣♥J+1+11
-8.9Round 16🇮🇩 INDONESIA23NT♠10=-6
-9.1Round 9🇫🇷 FRANCE134♥♥7=-10
-9.2Round 14OCEANIA83♣♦2=-9
-10.3Round 2🇸🇪 SWEDEN24♠♥3+1-13
-10.3Round 11🇮🇹 ITALY123NT♥9=-13
-10.7Round 9🇫🇷 FRANCE34♦x♠9-3-12
-10.8Round 7🇮🇩 INDONESIA75♦x♣A-3-12
-10.9Round 7🇮🇩 INDONESIA113NT♣7-1-11
-11.4Round 2🇸🇪 SWEDEN56NT♣4-2-19
-11.6Round 6🇺🇸 USA36♥♦A=-13
-14.1Round 17🇳🇱 NETHERLANDS162♠x♦A-4-14
-14.4Round 4🇨🇳 CHINA167♣♦K-1-15