🇹🇼 TSAI Chi-Cheung · CHINESE TAIPEI

107rank
-100.0Butler · 192 bds
-0.52per board
±4.3swing
-0.70vs par /bd · #113/129
-0.44adjusted /bd
Butler per round: -51 -7.3 -15.3 25.4 -18.3 -21.3 -32.3 18.4 21.1 8.5 -17.5 -10.4by round

vs par split: bidding -1.02 · play +0.32

Strength of schedule: opponents averaged +0.08/bd (a tough draw) → opponent-adjusted -0.44/bd

Card play — on target: opening leads 76.1% #106 of 129 · declarer play 76.9% #37 of 129 · defence 79.8% #120 of 129

Card play by contract type — on target
vs NTvs a suit
Opening leads71.4% (14)78.1% (32)
Declarer play50.0% (14)86.8% (38)
Defence80.0% (25)79.7% (69)

Opening leads by suit led: ♠ 81.8% (11) · ♥ 77.8% (9) · ♦ 75.0% (16) · ♣ 70.0% (10)

vs par by strain: NT +0.22 (50) · a suit -1.03 (142)

vs par by level: part-score -1.32 (72) · game -0.11 (106) · slam -2.00 (14)

By role: declaring +0.04/bd (-2.72 vs par · 98) · defending -1.10/bd (+1.40 vs par · 94)

By vulnerability: vulnerable -0.95/bd (-1.28 vs par · 96) · not vulnerable -0.09/bd (-0.12 vs par · 96)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1H.LaiR.Klinger – W.HaughieOpen16-51.0-3.19-3.75
Round 3J.ShihB.Vriend – A.MaasClosed16-7.3-0.46-2.75
Round 4H.LaiH.Lasut – E.ManoppoClosed16-15.3-0.96-0.62
Round 7H.LaiM.Jacobus – E.WoldOpen16+25.4+1.59+1.25
Round 9J.ShihB.Strater – U.KratzOpen16-18.3-1.14-0.62
Round 10H.LaiA.Kowalski – J.RomanskiOpen16-21.3-1.33+1.06
Round 12J.ShihV.Sharma – A.GoelOpen16-32.3-2.02-1.75
Round 13H.LaiN.Stuckey – C.WilsonOpen16+18.4+1.15-0.19
Round 16H.LaiE.Pieters – J.DorfanOpen16+21.1+1.32+2.19
Round 18J.ShihE.D'Orsi – M.MoreiraOpen16+8.5+0.53-0.88
Round 19H.LaiG.Polet – A.KaplanClosed16-17.5-1.09-1.88
Round 21J.ShihW.Coyle – V.SilverstoneOpen16-10.4-0.65-0.50

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
+12.1Round 18🇧🇷 BRAZIL235♣x♥Q=+12
+11.0Round 21🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND34♠x♣A=+12
+10.4Round 7🇺🇸 USA253NT♠7-3+14
+10.1Round 9🇩🇪 GERMANY156♠♣5-2+14
+9.9Round 16🇿🇦 SOUTH AFRICA303♣x♥3-4+9
+9.3Round 4🇮🇩 INDONESIA214♠x♥4-2+12
+9.2Round 13🇳🇿 NEW ZEALAND146♥♦6=+0
+8.9Round 7🇺🇸 USA2154♠x♥3=+5
+7.8Round 19🇧🇪 BELGIUM154♠♣K-1+10
+7.0Round 9🇩🇪 GERMANY65♦x♠Q-1+5
+6.8Round 21🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND133NT♠5=-1
+6.6Round 13🇳🇿 NEW ZEALAND43NT♠9-3+10
+6.2Round 16🇿🇦 SOUTH AFRICA193NT♣6-1+12
+5.9Round 12🇮🇳 INDIA173NT♠6+1+0
+5.6Round 3🇳🇱 NETHERLANDS83NT♦5+1-10
+5.3Round 7🇺🇸 USA274♠♦2+3+12
+5.2Round 19🇧🇪 BELGIUM13NT♥7=+0
+5.2Round 21🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND25♣♦9-1+6
+5.0Round 16🇿🇦 SOUTH AFRICA225♦♠K-3+9
+5.0Round 18🇧🇷 BRAZIL183NT♠3=-1
+4.9Round 18🇧🇷 BRAZIL303NT♣5-2+11
+4.4Round 7🇺🇸 USA2143♥♠3=+0
+4.4Round 9🇩🇪 GERMANY143NT♠A=+12
+4.4Round 13🇳🇿 NEW ZEALAND114♠x♥3-2+12
+4.0Round 7🇺🇸 USA244♥♦3=+0
+3.9Round 13🇳🇿 NEW ZEALAND14♥♣J=+0
+3.7Round 13🇳🇿 NEW ZEALAND124♥♠Q-2+0
+3.3Round 4🇮🇩 INDONESIA303NT♠6-1+10
+3.3Round 16🇿🇦 SOUTH AFRICA262♠♣4-1-1
+3.3Round 19🇧🇪 BELGIUM43NT♥10+1+0
+3.2Round 16🇿🇦 SOUTH AFRICA242♠♥10=+0
+3.1Round 7🇺🇸 USA2102♠♠9-1+5
+3.0Round 12🇮🇳 INDIA323♥♦J=+0
+2.9Round 1🇦🇺 AUSTRALIA43♥♠A=+0
+2.9Round 3🇳🇱 NETHERLANDS51NT♠J-1+4
+2.7Round 12🇮🇳 INDIA204♥♠J=-1
+2.5Round 10🇵🇱 POLAND244♣♠A=+0
+2.4Round 13🇳🇿 NEW ZEALAND86♥♣A+1-11
+2.2Round 1🇦🇺 AUSTRALIA56♠♥K+1-13
+2.1Round 12🇮🇳 INDIA243♠♦A-1+6
+2.0Round 13🇳🇿 NEW ZEALAND62♦♠J-2+3
+1.9Round 9🇩🇪 GERMANY92♥♣A=+5
+1.6Round 12🇮🇳 INDIA284♠♥5=-1
+1.6Round 18🇧🇷 BRAZIL283NT♣2-1+5
+1.5Round 16🇿🇦 SOUTH AFRICA274♠♣K=+3
+1.4Round 1🇦🇺 AUSTRALIA93♥♦4=+0
+1.4Round 13🇳🇿 NEW ZEALAND33♠♦9-1+6
+1.3Round 4🇮🇩 INDONESIA195♥♠7+1+11
+1.3Round 10🇵🇱 POLAND224♠♥K-1+10
+1.3Round 16🇿🇦 SOUTH AFRICA322♥♠5+1+0
+1.2Round 3🇳🇱 NETHERLANDS134♠♣J+1+0
+1.2Round 21🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND71♠♥9+1+1
+1.1Round 10🇵🇱 POLAND286♦♣9=+13
+1.0Round 10🇵🇱 POLAND302♣♦K-2+0
+0.9Round 3🇳🇱 NETHERLANDS63♦♣A+2-6
+0.9Round 16🇿🇦 SOUTH AFRICA215♥♣A=+0
+0.8Round 3🇳🇱 NETHERLANDS93NT♥7+2+13
+0.8Round 7🇺🇸 USA214♠♦8+2+11
+0.8Round 7🇺🇸 USA223NT♥9+2+12
+0.8Round 10🇵🇱 POLAND192♥♣A=-1
+0.7Round 21🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND83NT♠9+2+0
+0.6Round 18🇧🇷 BRAZIL321NT♦3+1-7
+0.5Round 3🇳🇱 NETHERLANDS73NT♠7+1+1
+0.5Round 13🇳🇿 NEW ZEALAND74♠♥7+1+0
+0.5Round 16🇿🇦 SOUTH AFRICA252♣♠J=-1
+0.4Round 3🇳🇱 NETHERLANDS13♥♠3=-1
+0.4Round 3🇳🇱 NETHERLANDS143NT♠4+2+10
+0.4Round 4🇮🇩 INDONESIA244♠♥K+1-11
+0.4Round 4🇮🇩 INDONESIA264♠♦A=+1
+0.4Round 9🇩🇪 GERMANY114♥x♠A-2+4
+0.4Round 12🇮🇳 INDIA234♥♣J=-1
+0.4Round 16🇿🇦 SOUTH AFRICA203♣♠Q+1+0
+0.4Round 18🇧🇷 BRAZIL214♥♦2+1+0
+0.4Round 19🇧🇪 BELGIUM91NT♠6+1+0
+0.3Round 3🇳🇱 NETHERLANDS114♥♣8+1+0
+0.3Round 16🇿🇦 SOUTH AFRICA231NT♦3=+1
+0.2Round 12🇮🇳 INDIA193NT♠6+2+0
+0.2Round 13🇳🇿 NEW ZEALAND93♣♥J-1+3
+0.1Round 7🇺🇸 USA262♠♦3=+0
+0.1Round 10🇵🇱 POLAND272♠♣Q-1-2
+0.1Round 19🇧🇪 BELGIUM82♦♣K+1-1
+0.0Round 1🇦🇺 AUSTRALIA34♠♦A+1+0
-0.0Round 4🇮🇩 INDONESIA282♣♦K=+2
-0.0Round 7🇺🇸 USA2163♣♥A=+0
+0.0Round 9🇩🇪 GERMANY73NT♠3+2+0
-0.0Round 10🇵🇱 POLAND294♥♦A+1+0
+0.0Round 13🇳🇿 NEW ZEALAND104♠♥8=+3
+0.0Round 13🇳🇿 NEW ZEALAND154♠♣A-1-6
-0.0Round 18🇧🇷 BRAZIL245♠x♦9-2-5
+0.0Round 21🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND52♠♦2+1-10
+0.0Round 21🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND164♥♠A+1-10
-0.1Round 7🇺🇸 USA2133NT♥3+3-12
-0.2Round 4🇮🇩 INDONESIA311NT♥Q-1+1
-0.3Round 1🇦🇺 AUSTRALIA74♠♥4-2-2
-0.3Round 18🇧🇷 BRAZIL294♥♦3=+1
-0.3Round 19🇧🇪 BELGIUM72♦♦6+2-1
-0.4Round 7🇺🇸 USA2113♠♣3-2+1
-0.4Round 9🇩🇪 GERMANY123NT♠9+2+0
-0.5Round 10🇵🇱 POLAND263♠♦A=+0
-0.5Round 21🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND12♥♣3+2+6
-0.6Round 1🇦🇺 AUSTRALIA11♠♥5+1+0
-0.6Round 4🇮🇩 INDONESIA251NT♣10-2-1
-0.6Round 7🇺🇸 USA234♠♥4+1-13
-0.6Round 19🇧🇪 BELGIUM52NT♥A+1-10
-0.7Round 1🇦🇺 AUSTRALIA152♥♦Q=+0
-0.7Round 18🇧🇷 BRAZIL273NT♥Q+1-14
-0.7Round 21🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND153NT♦J+2+0
-0.8Round 10🇵🇱 POLAND313NT♦A+2+0
-0.8Round 10🇵🇱 POLAND324NT♠4+1+0
-0.8Round 16🇿🇦 SOUTH AFRICA174♠♣9=+0
-0.8Round 19🇧🇪 BELGIUM62♥♠K+2+1
-0.9Round 4🇮🇩 INDONESIA232NT♥8-2-8
-0.9Round 12🇮🇳 INDIA272♠♦J+2-6
-0.9Round 18🇧🇷 BRAZIL203NT♦K+2+0
-1.0Round 1🇦🇺 AUSTRALIA64♥♠A+3+15
-1.0Round 3🇳🇱 NETHERLANDS165♦♠7=-11
-1.0Round 10🇵🇱 POLAND201♠♥4+3-2
-1.0Round 12🇮🇳 INDIA226♥♠A=+0
-1.0Round 13🇳🇿 NEW ZEALAND23NT♥J=-1
-1.0Round 18🇧🇷 BRAZIL316♦♠5+1+11
-1.1Round 9🇩🇪 GERMANY43NT♥8+2-1
-1.1Round 21🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND141NT♣5-3+4
-1.2Round 18🇧🇷 BRAZIL261♦♥6-1-1
-1.3Round 13🇳🇿 NEW ZEALAND54♥♥8+1-1
-1.4Round 3🇳🇱 NETHERLANDS124♥♣A=+0
-1.4Round 4🇮🇩 INDONESIA174♣♠A-1-4
-1.4Round 12🇮🇳 INDIA214♠♥2+2-1
-1.5Round 3🇳🇱 NETHERLANDS102♠♣7+1-10
-1.6Round 18🇧🇷 BRAZIL194♠♦K+2-11
-1.6Round 19🇧🇪 BELGIUM164♥x♦K-1+1
-1.7Round 1🇦🇺 AUSTRALIA143♥♦3-1-10
-1.7Round 16🇿🇦 SOUTH AFRICA313♦♣9=+7
-1.8Round 19🇧🇪 BELGIUM101NT♣3+1+0
-1.9Round 9🇩🇪 GERMANY134♥♦2+2-5
-2.0Round 7🇺🇸 USA285♥♠A=-8
-2.0Round 9🇩🇪 GERMANY34♥♣3-1-5
-2.0Round 9🇩🇪 GERMANY81NT♠6-1+1
-2.1Round 10🇵🇱 POLAND252♥♦Q+2-1
-2.3Round 4🇮🇩 INDONESIA222♠♦5=-6
-2.3Round 4🇮🇩 INDONESIA291♥♠3+2+0
-2.4Round 16🇿🇦 SOUTH AFRICA184♥♠4=+0
-2.5Round 3🇳🇱 NETHERLANDS153NT♠3-1-6
-2.5Round 13🇳🇿 NEW ZEALAND164♥♣K=-8
-2.6Round 16🇿🇦 SOUTH AFRICA293♠♥6-2-2
-2.6Round 18🇧🇷 BRAZIL172♦♥Q-1-8
-2.7Round 4🇮🇩 INDONESIA324♥♦4=+0
-2.7Round 21🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND63NT♥4-1-5
-2.9Round 7🇺🇸 USA2124♥♠A+1+0
-3.0Round 12🇮🇳 INDIA262NT♣4+1+10
-3.2Round 19🇧🇪 BELGIUM113♥♠Q-1-5
-3.4Round 3🇳🇱 NETHERLANDS34♥♠K+2-11
-3.5Round 1🇦🇺 AUSTRALIA103NT♦3+2-2
-3.5Round 3🇳🇱 NETHERLANDS23♠♥A+1-7
-3.6Round 10🇵🇱 POLAND215♦♥4+1+10
-3.7Round 18🇧🇷 BRAZIL223♠♣A=-1
-3.9Round 16🇿🇦 SOUTH AFRICA286♥♥8-2-2
-4.0Round 9🇩🇪 GERMANY22♥♥3=-9
-4.0Round 12🇮🇳 INDIA184♠♦A=+0
-4.0Round 19🇧🇪 BELGIUM35♣♦K=+5
-4.1Round 18🇧🇷 BRAZIL252♣♦6+1-6
-4.3Round 9🇩🇪 GERMANY162♥♦K-1-10
-4.4Round 10🇵🇱 POLAND232♦x♦4-2+3
-4.5Round 19🇧🇪 BELGIUM144♦♣K-2-5
-4.5Round 21🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND103NT♠7+3-1
-5.1Round 1🇦🇺 AUSTRALIA126♠x♥A-1+0
-5.1Round 19🇧🇪 BELGIUM126♥♠A=+0
-5.3Round 10🇵🇱 POLAND171♠♣4=-10
-5.3Round 12🇮🇳 INDIA291NT♥4-1-7
-5.4Round 21🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND91♣♣3+2-8
-5.6Round 4🇮🇩 INDONESIA276♠♦6-1-11
-5.7Round 21🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND44♥♥5=+0
-6.1Round 19🇧🇪 BELGIUM26♣♥A-2-13
-6.3Round 19🇧🇪 BELGIUM133NT♥2-1-12
-6.3Round 21🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND124♠♥2+1-2
-6.4Round 7🇺🇸 USA294♥♣4=-7
-6.8Round 1🇦🇺 AUSTRALIA113NT♥3+1-7
-6.9Round 9🇩🇪 GERMANY54♠♣J=-7
-7.0Round 3🇳🇱 NETHERLANDS44♠♦2=-10
-7.0Round 4🇮🇩 INDONESIA184♣♥A+1-2
-7.0Round 4🇮🇩 INDONESIA202♠♣A-3-4
-8.4Round 21🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND116♦♥K=+0
-8.5Round 1🇦🇺 AUSTRALIA164♥♣9=-13
-8.5Round 9🇩🇪 GERMANY13NT♦5+3-2
-9.5Round 1🇦🇺 AUSTRALIA25♥x♠K-2-8
-9.6Round 1🇦🇺 AUSTRALIA84♥♣K=-11
-9.6Round 10🇵🇱 POLAND184♠♦K=-3
-10.2Round 1🇦🇺 AUSTRALIA134♠♣A=-9
-10.8Round 12🇮🇳 INDIA317♣♦A-1-16
-10.9Round 12🇮🇳 INDIA254♠x♣3-3-11
-10.9Round 12🇮🇳 INDIA304♠x♦K+2+0
-11.0Round 9🇩🇪 GERMANY103NT♦6-1-12
-11.1Round 13🇳🇿 NEW ZEALAND134♠♠2=-13