🇹🇼 CHEN Yin-Shou · CHINESE TAIPEI

58rank
+30.0Butler · 240 bds
+0.12per board
±4.4swing
+0.08vs par /bd · #63/128
+0.10adjusted /bd
Butler per round: -1.2 -18.6 -10.1 6.8 -8.1 16.7 6.4 18.8 -24.1 5.9 -10.4 17.5 2.2 41.7 -13.5by round

vs par split: bidding +0.44 · play -0.36

Strength of schedule: opponents averaged -0.02/bd (an average draw) → opponent-adjusted +0.10/bd

Card play — on target: opening leads 77.6% #75 of 128 · declarer play 76.2% #57 of 128 · defence 85.7% #65 of 128

Card play by contract type — on target
vs NTvs a suit
Opening leads68.4% (19)82.1% (39)
Declarer play77.8% (18)75.6% (45)
Defence82.9% (35)86.9% (84)

Opening leads by suit led: ♠ 63.6% (11) · ♥ 81.2% (16) · ♦ 66.7% (12) · ♣ 89.5% (19)

vs par by strain: NT -0.27 (70) · a suit +0.23 (168)

vs par by level: part-score +0.52 (89) · game +0.00 (137) · slam -2.25 (12)

By role: declaring -0.31/bd (-2.75 vs par · 121) · defending +0.57/bd (+2.96 vs par · 119)

By vulnerability: vulnerable +0.61/bd (+0.03 vs par · 120) · not vulnerable -0.36/bd (+0.12 vs par · 120)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1L.KuoN.Tache – A.DouerClosed16-1.2-0.07-1.62
Round 3L.KuoD.Kazmucha – G.BrewiakOpen16-18.6-1.16-0.44
Round 4L.KuoD.Campagnano – E.HugonClosed16-10.1-0.63-1.31
Round 6L.KuoS.Paoluzi – I.SaccaviniClosed16+6.8+0.42+0.38
Round 7L.KuoM.Narunsky – J.SwielClosed16-8.1-0.51+0.06
Round 9L.KuoS.Newton – J.WilkinsonOpen16+16.7+1.04+1.19
Round 11L.KuoM.Bourke – S.LuskClosed16+6.4+0.40+2.94
Round 12L.KuoS.De Mello – P.CorreaClosed16+18.8+1.18+1.00
Round 13L.KuoA.Garcia – J.CassinClosed16-24.1-1.51-1.88
Round 15L.KuoM.Wortel – M.MichielsenOpen16+5.9+0.37-2.06
Round 16L.KuoJ.Meyers – M.Zur-CampanileClosed16-10.4-0.65-0.88
Round 18L.KuoA.Miyakuni – H.OtaOpen16+17.5+1.09+0.75
Round 19L.KuoP.Batra – M.JajooClosed16+2.2+0.14+2.88
Round 20L.KuoH.Saket – M.GharbiehClosed16+41.7+2.61+0.81
Round 21L.KuoI.Brisebois – S.NystromOpen16-13.5-0.84-0.62

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
+12.0Round 1🇻🇪 VENEZUELA106♥♠4+1-13
+11.6Round 12🇧🇷 BRAZIL205♥x♦A-1+12
+10.7Round 12🇧🇷 BRAZIL323NT♠A-1+12
+10.2Round 15🇳🇱 NETHERLANDS104♥♣2=+0
+9.7Round 1🇻🇪 VENEZUELA163NT♥K+1+13
+9.3Round 4🇫🇷 FRANCE314♥x♦A-3+0
+9.3Round 20🇯🇴 JORDAN234♠♦6-1+12
+9.0Round 16🇺🇸 USA1225♦♥2-3+11
+8.9Round 11🇦🇺 AUSTRALIA62♥♦3=+11
+8.7Round 21🇨🇦 CANADA84♥♦4-1+11
+8.4Round 6🇮🇹 ITALY196♦♠10-1+13
+8.4Round 18🇯🇵 JAPAN313NT♠6+3+12
+8.2Round 20🇯🇴 JORDAN222♠♥Q+3+7
+8.1Round 9🇳🇿 NEW ZEALAND42♥♦A+2+10
+7.9Round 7🇿🇦 SOUTH AFRICA134♥♦6-1+12
+7.9Round 11🇦🇺 AUSTRALIA93♣♦3-1+10
+7.8Round 11🇦🇺 AUSTRALIA44♠♥6-1+11
+7.7Round 19🇮🇳 INDIA14♥♠2=+8
+7.1Round 21🇨🇦 CANADA73NT♠J-1+12
+7.0Round 9🇳🇿 NEW ZEALAND13NT♥7=+7
+6.7Round 18🇯🇵 JAPAN274♦♥A=+10
+6.3Round 15🇳🇱 NETHERLANDS72♠♥5+1+0
+6.1Round 6🇮🇹 ITALY264♠x♦A=+4
+6.1Round 18🇯🇵 JAPAN293♣♥2-2+7
+6.0Round 7🇿🇦 SOUTH AFRICA52♥♥8-2+7
+5.9Round 1🇻🇪 VENEZUELA116♥♦3=+0
+5.8Round 18🇯🇵 JAPAN213NT♠8=+0
+5.5Round 9🇳🇿 NEW ZEALAND81NT♠Q-4+2
+5.5Round 13🇬🇵 GUADELOUPE83NT♠7-3+7
+5.3Round 15🇳🇱 NETHERLANDS156♦♥A-1+12
+5.2Round 13🇬🇵 GUADELOUPE114♥♣K+1+0
+5.0Round 4🇫🇷 FRANCE184♠♣K-1+10
+5.0Round 11🇦🇺 AUSTRALIA14♠♣3-2+6
+4.9Round 6🇮🇹 ITALY254♠♣8-2+11
+4.6Round 20🇯🇴 JORDAN182♠♣6=+6
+4.5Round 20🇯🇴 JORDAN293NT♠5=-1
+4.4Round 20🇯🇴 JORDAN244♥♣4+2-11
+4.3Round 3🇵🇱 POLAND135♦x♣A-1+12
+4.1Round 3🇵🇱 POLAND143NT♣6-3+7
+4.0Round 9🇳🇿 NEW ZEALAND133NT♣4+3+2
+4.0Round 12🇧🇷 BRAZIL234♠♣A-1+12
+4.0Round 18🇯🇵 JAPAN263NT♣4-1+6
+4.0Round 20🇯🇴 JORDAN206♣♥2+1-13
+3.9Round 7🇿🇦 SOUTH AFRICA125♠x♥5-1+9
+3.9Round 9🇳🇿 NEW ZEALAND103♥♦6+1+10
+3.9Round 13🇬🇵 GUADELOUPE133♥♦K+1+10
+3.9Round 15🇳🇱 NETHERLANDS124♠♥8+1+0
+3.9Round 16🇺🇸 USA1192♥♥6=+5
+3.9Round 19🇮🇳 INDIA143♠♥4+4+15
+3.7Round 12🇧🇷 BRAZIL214♠♣8=+0
+3.6Round 15🇳🇱 NETHERLANDS43NT♠3-2+0
+3.6Round 21🇨🇦 CANADA63♣♦K-1+12
+3.5Round 15🇳🇱 NETHERLANDS93♣♥5=+0
+3.4Round 15🇳🇱 NETHERLANDS134♥♦6-1-1
+3.4Round 18🇯🇵 JAPAN225♥♠K+1-3
+3.4Round 20🇯🇴 JORDAN302♦♣A+3+1
+3.3Round 20🇯🇴 JORDAN253NT♠4+1+7
+3.0Round 4🇫🇷 FRANCE322NT♥4-2+8
+2.9Round 20🇯🇴 JORDAN273♦♣10-1+4
+2.8Round 21🇨🇦 CANADA23NT♥Q+1+0
+2.7Round 3🇵🇱 POLAND122♥♦6=+0
+2.7Round 7🇿🇦 SOUTH AFRICA153♥♣K-4-2
+2.7Round 15🇳🇱 NETHERLANDS163NT♥4+1+1
+2.4Round 9🇳🇿 NEW ZEALAND23NT♣8-3+6
+2.4Round 16🇺🇸 USA1253NT♠2-1+5
+2.3Round 19🇮🇳 INDIA72♠♥A-1+1
+2.2Round 15🇳🇱 NETHERLANDS22♠♠5-2-5
+2.1Round 1🇻🇪 VENEZUELA124♠♦K-1+6
+2.1Round 9🇳🇿 NEW ZEALAND123NT♥6+1+1
+2.1Round 19🇮🇳 INDIA52NT♥2=+0
+2.0Round 4🇫🇷 FRANCE213NT♦4+3+3
+2.0Round 21🇨🇦 CANADA113♥♦A+1+2
+1.9Round 12🇧🇷 BRAZIL274♥♠A+1+4
+1.8Round 1🇻🇪 VENEZUELA93NT♥6+3-13
+1.8Round 19🇮🇳 INDIA92♦♠J+1+6
+1.7Round 4🇫🇷 FRANCE252♥♠J+1+0
+1.7Round 6🇮🇹 ITALY213NT♠Q=+3
+1.7Round 12🇧🇷 BRAZIL291NT♥5=-1
+1.6Round 9🇳🇿 NEW ZEALAND111NT♥4+2+0
+1.6Round 13🇬🇵 GUADELOUPE33♠♥8+1+4
+1.6Round 13🇬🇵 GUADELOUPE54♠♣A=+1
+1.6Round 18🇯🇵 JAPAN233♣♥A+2+10
+1.6Round 20🇯🇴 JORDAN284♥♣A=-13
+1.5Round 7🇿🇦 SOUTH AFRICA95♦♠10+1-13
+1.5Round 12🇧🇷 BRAZIL264♥♣K=-1
+1.5Round 16🇺🇸 USA1184♠♥2+1+0
+1.5Round 19🇮🇳 INDIA42♠♦3+2-1
+1.4Round 11🇦🇺 AUSTRALIA104♠♦J-1-3
+1.4Round 12🇧🇷 BRAZIL184♠♦J-2+5
+1.4Round 20🇯🇴 JORDAN314♠♦K-1+5
+1.2Round 19🇮🇳 INDIA155♦♥10+1+13
+1.1Round 16🇺🇸 USA1291♠♣10-1+0
+0.9Round 11🇦🇺 AUSTRALIA142♠♥10+2+6
+0.9Round 21🇨🇦 CANADA43NT♠5=+0
+0.6Round 11🇦🇺 AUSTRALIA82♠♣J+3+6
+0.6Round 16🇺🇸 USA1304♠♥J=+0
+0.6Round 19🇮🇳 INDIA33NT♣J+2+11
+0.6Round 20🇯🇴 JORDAN174♥♠Q=+0
+0.5Round 7🇿🇦 SOUTH AFRICA162♥♥A+2-1
+0.5Round 9🇳🇿 NEW ZEALAND161♠♦K+1+1
+0.5Round 12🇧🇷 BRAZIL282♥♣6=+0
+0.4Round 6🇮🇹 ITALY31Pass+3
+0.4Round 11🇦🇺 AUSTRALIA163NT♥5+1+1
+0.4Round 13🇬🇵 GUADELOUPE14♠♥K=-1
+0.4Round 20🇯🇴 JORDAN324♥♦J=+0
+0.3Round 4🇫🇷 FRANCE192♠♦3+1+0
+0.3Round 6🇮🇹 ITALY183♠♥7-1-2
+0.3Round 9🇳🇿 NEW ZEALAND52♠♦5-1+4
+0.1Round 6🇮🇹 ITALY283♥♠J+1-10
+0.1Round 13🇬🇵 GUADELOUPE104♥♦2+1+0
+0.1Round 20🇯🇴 JORDAN262♣♠8=+1
-0.0Round 1🇻🇪 VENEZUELA54♥♣J+1+0
+0.0Round 3🇵🇱 POLAND64♥♠5=+0
-0.0Round 13🇬🇵 GUADELOUPE164♥♣K+1+0
-0.0Round 18🇯🇵 JAPAN193NT♥7+1+0
-0.1Round 19🇮🇳 INDIA164♥♣A=+0
-0.2Round 6🇮🇹 ITALY221♦x♠A-1+2
-0.2Round 6🇮🇹 ITALY303NT♥2+2+0
-0.3Round 11🇦🇺 AUSTRALIA24♠♦K+1+13
-0.3Round 13🇬🇵 GUADELOUPE74♠♥A=+0
-0.3Round 18🇯🇵 JAPAN254♥♦8+3-2
-0.4Round 1🇻🇪 VENEZUELA33NT♣5+1+1
-0.4Round 3🇵🇱 POLAND24♠♣4+2+11
-0.4Round 11🇦🇺 AUSTRALIA153♣♥6=-1
-0.5Round 4🇫🇷 FRANCE283NT♥6=+0
-0.5Round 9🇳🇿 NEW ZEALAND72♥♣Q=-1
-0.5Round 12🇧🇷 BRAZIL223NT♠4=+0
-0.5Round 19🇮🇳 INDIA104♥♣9+1+0
-0.5Round 21🇨🇦 CANADA13Pass-3
-0.6Round 16🇺🇸 USA1274♠♥10+1-11
-0.6Round 19🇮🇳 INDIA64♥♦Q=+1
-0.7Round 1🇻🇪 VENEZUELA152♥♦8+1+0
-0.7Round 4🇫🇷 FRANCE304♥♣6=+0
-0.7Round 18🇯🇵 JAPAN242♠♣7-1-4
-0.7Round 21🇨🇦 CANADA53NT♠K+2+0
-0.8Round 1🇻🇪 VENEZUELA43NT♥Q=+0
-0.8Round 7🇿🇦 SOUTH AFRICA33NT♦4+2+10
-0.8Round 7🇿🇦 SOUTH AFRICA62♣♣10-1+1
-0.9Round 1🇻🇪 VENEZUELA84♠♣6+1+0
-0.9Round 6🇮🇹 ITALY203♣♣6+1+0
-0.9Round 12🇧🇷 BRAZIL173NT♠5+2-1
-0.9Round 18🇯🇵 JAPAN304♥♣3-1-5
-1.0Round 3🇵🇱 POLAND165♦♠5+1-11
-1.0Round 7🇿🇦 SOUTH AFRICA143NT♠9+3-10
-1.0Round 9🇳🇿 NEW ZEALAND154♥♠10+1-10
-1.0Round 12🇧🇷 BRAZIL191NT♦Q+1+1
-1.1Round 12🇧🇷 BRAZIL243NT♥3-2-6
-1.1Round 16🇺🇸 USA1321NT♣2-1+0
-1.2Round 3🇵🇱 POLAND73NT♠9+1+12
-1.2Round 13🇬🇵 GUADELOUPE154♥♥2+1-13
-1.2Round 20🇯🇴 JORDAN191NT♥2+3-2
-1.3Round 4🇫🇷 FRANCE204♥♦4+2-17
-1.3Round 11🇦🇺 AUSTRALIA35♦♠4-1+8
-1.3Round 16🇺🇸 USA1234♥♠K+1-4
-1.3Round 18🇯🇵 JAPAN172♠♥A+2-6
-1.3Round 19🇮🇳 INDIA24♠♣6=+1
-1.4Round 3🇵🇱 POLAND33♣♦A=+0
-1.4Round 3🇵🇱 POLAND81NT♥2+3-1
-1.4Round 6🇮🇹 ITALY242♦♣7+1+0
-1.5Round 12🇧🇷 BRAZIL304♠♥10+1+0
-1.6Round 4🇫🇷 FRANCE222♥♠5+1-1
-1.7Round 6🇮🇹 ITALY292♠♦9+2-1
-1.7Round 7🇿🇦 SOUTH AFRICA15♦♣A=-3
-1.7Round 16🇺🇸 USA1243NT♦6+1-11
-1.9Round 7🇿🇦 SOUTH AFRICA84♥♣Q+1+0
-2.0Round 3🇵🇱 POLAND53NT♥6-1-12
-2.0Round 6🇮🇹 ITALY174♠♦A-1+2
-2.0Round 7🇿🇦 SOUTH AFRICA104♠♦8=+1
-2.0Round 15🇳🇱 NETHERLANDS114♠♦9+3-10
-2.0Round 21🇨🇦 CANADA12♠♣K-1+1
-2.1Round 9🇳🇿 NEW ZEALAND141NT♥6+3-2
-2.1Round 15🇳🇱 NETHERLANDS33NT♦4=+0
-2.1Round 21🇨🇦 CANADA103NT♦J=+2
-2.2Round 6🇮🇹 ITALY233NT♥4-1-6
-2.2Round 19🇮🇳 INDIA84♠♦A-2+0
-2.3Round 3🇵🇱 POLAND13♠♥10-1-4
-2.3Round 21🇨🇦 CANADA126♠♥Q=+0
-2.4Round 18🇯🇵 JAPAN204♠♦3-1-6
-2.5Round 19🇮🇳 INDIA122♠♣K+2-6
-2.6Round 3🇵🇱 POLAND92NT♠5-2-6
-2.6Round 16🇺🇸 USA1265♦♦4+1-13
-2.7Round 1🇻🇪 VENEZUELA63♥♦3-1+0
-2.7Round 3🇵🇱 POLAND44♠♥Q+1-4
-2.7Round 9🇳🇿 NEW ZEALAND93NT♠4+1-1
-2.8Round 4🇫🇷 FRANCE243NT♣10=+1
-2.8Round 6🇮🇹 ITALY322♣♥A=-5
-2.9Round 11🇦🇺 AUSTRALIA123NT♥7+1-1
-2.9Round 15🇳🇱 NETHERLANDS83♥♦J-4-2
-3.0Round 11🇦🇺 AUSTRALIA131NT♥3-1+0
-3.0Round 16🇺🇸 USA1313NT♥6+1+0
-3.1Round 1🇻🇪 VENEZUELA14♥♣Q-1-5
-3.2Round 21🇨🇦 CANADA93♥♣10+1-1
-3.3Round 4🇫🇷 FRANCE173NT♦Q+3-11
-3.3Round 7🇿🇦 SOUTH AFRICA23♥♣7-3-2
-3.3Round 15🇳🇱 NETHERLANDS143♥♦10=-7
-3.3Round 16🇺🇸 USA1283♠♦A-2+1
-3.4Round 15🇳🇱 NETHERLANDS12♥♥4+1-1
-3.5Round 13🇬🇵 GUADELOUPE23♦♠A-1-10
-3.5Round 18🇯🇵 JAPAN281♠♠8+3-2
-3.6Round 19🇮🇳 INDIA112♥♣2+2+6
-3.7Round 4🇫🇷 FRANCE294♠♣A-1-7
-3.7Round 6🇮🇹 ITALY273♣♠8-2-8
-3.7Round 9🇳🇿 NEW ZEALAND64♥♦7+1+0
-3.7Round 18🇯🇵 JAPAN321NT♥2-4+0
-4.0Round 3🇵🇱 POLAND103♠♣A-1-6
-4.0Round 7🇿🇦 SOUTH AFRICA73NT♣K=+13
-4.0Round 13🇬🇵 GUADELOUPE121♦♠7+3-1
-4.2Round 15🇳🇱 NETHERLANDS53♠♦4=+0
-4.3Round 16🇺🇸 USA1203♦♠A=-6
-4.5Round 16🇺🇸 USA1174♥♣J=-3
-4.7Round 4🇫🇷 FRANCE262♠♠J=+1
-4.7Round 11🇦🇺 AUSTRALIA114♥♥3+1+0
-4.8Round 1🇻🇪 VENEZUELA26♥♠2=+13
-5.1Round 1🇻🇪 VENEZUELA73NT♥10-1-12
-5.3Round 3🇵🇱 POLAND153♠x♥6-3-8
-5.3Round 4🇫🇷 FRANCE277♥♠K=+0
-5.4Round 3🇵🇱 POLAND112♦x♣A-2+3
-5.4Round 21🇨🇦 CANADA164♠♠5-2-6
-5.5Round 11🇦🇺 AUSTRALIA73NT♥Q-3-10
-5.7Round 18🇯🇵 JAPAN184♠♦2-1-5
-5.8Round 20🇯🇴 JORDAN216♠♦7+1+10
-5.9Round 1🇻🇪 VENEZUELA132NT♣J-1-6
-6.0Round 7🇿🇦 SOUTH AFRICA114♥♥A-1-5
-6.1Round 21🇨🇦 CANADA36♥♣Q-1-14
-6.3Round 12🇧🇷 BRAZIL253NT♥2=-12
-6.5Round 13🇬🇵 GUADELOUPE91NT♠K=-5
-6.5Round 16🇺🇸 USA1215♣x♣2-4+12
-6.9Round 12🇧🇷 BRAZIL314♥x♦A-1-9
-7.0Round 13🇬🇵 GUADELOUPE64♠♥A=-3
-7.4Round 21🇨🇦 CANADA146♠♥A-3-15
-7.5Round 4🇫🇷 FRANCE232♥♠3-2-8
-8.1Round 19🇮🇳 INDIA135♣♦9-2-9
-8.3Round 1🇻🇪 VENEZUELA143NT♦Q-1-10
-8.4Round 11🇦🇺 AUSTRALIA53NT♦4-1-10
-8.7Round 9🇳🇿 NEW ZEALAND34♠♦J-1-10
-8.7Round 13🇬🇵 GUADELOUPE143NT♦10+1-7
-8.9Round 21🇨🇦 CANADA154♦x♠J-2-11
-9.1Round 7🇿🇦 SOUTH AFRICA43NT♠4-1-16
-11.2Round 13🇬🇵 GUADELOUPE43NT♦10-1-12
-17.3Round 15🇳🇱 NETHERLANDS67♠♠5-1-20