🇨🇳 CAI Yang · CHINA

73rank
-1.4Butler · 238 bds
-0.01per board
±4.7swing
+0.08vs par /bd · #67/139
-0.01adjusted /bd
Butler per round: 10.5 -2.1 -10.2 10 4.9 -6.1 8.5 49.6 -9.7 -11.6 3.3 11.8 -14.8 0.6 3.4 -34.6 -14.9by round

vs par split: bidding +0.11 · play +0.01

Strength of schedule: opponents averaged -0.00/bd (an average draw) → opponent-adjusted -0.01/bd

Card play — on target: opening leads 77.9% #95 of 139 · declarer play 79.3% #42 of 139 · defence 88.4% #58 of 139

Bidding activity — not a pass: 44.7% #57 of 139 (310/693)

Card play by contract type — on target
vs NTvs a suit
Opening leads64.7% (17)81.7% (60)
Declarer play72.2% (18)82.5% (40)
Defence80.8% (26)90.5% (95)

Opening leads by suit led: ♠ 66.7% (15) · ♥ 86.4% (22) · ♦ 80.0% (20) · ♣ 75.0% (20)

vs par by strain: NT -0.07 (62) · a suit +0.18 (175)

vs par by level: part-score +0.20 (81) · game -0.02 (143) · slam +1.08 (13)

By role: declaring +0.03/bd (-2.08 vs par · 117) · defending -0.04/bd (+2.17 vs par · 121)

By vulnerability: vulnerable -0.13/bd (-0.20 vs par · 119) · not vulnerable +0.12/bd (+0.36 vs par · 119)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1G.SunJ.Campos – A.RodriguesClosed14+10.5+0.75+2.21
Round 3G.SunM.Cloppet – L.RizzoClosed14-2.1-0.15-1.50
Round 4G.SunC.Bakke – B.BrogelandOpen14-10.2-0.73-1.07
Round 5G.SunD.Miles – J.FeldmanOpen14+10.0+0.71+3.50
Round 6G.SunD.Wiltshire – S.AshtonClosed14+4.9+0.35+0.71
Round 8G.SunK.Bendre – S.KushariClosed14-6.1-0.44+1.21
Round 10G.SunB.Norton – S.TommasiniOpen14+8.5+0.61+1.57
Round 11G.SunB.Mace – M.MayerOpen14+49.6+3.54+1.57
Round 12G.SunA.Versace – A.SementaOpen14-9.7-0.69-0.14
Round 13G.SunJ.Upmark – F.NystromOpen14-11.6-0.83-3.07
Round 14G.SunM.Rahman – M.IspahaniOpen14+3.3+0.24+0.71
Round 15G.SunP.Mathieu – L.SoudanOpen14+11.8+0.84-0.29
Round 17G.SunS.Roh – S.KangOpen14-14.8-1.06-1.86
Round 18G.SunC.Lorenzini – T.BessisOpen14+0.6+0.04-0.43
Round 19G.SunW.Bellazreg – A.MestiriClosed14+3.4+0.24+0.43
Round 22G.SunA.Plejdrup-Meister – C.LahrmannClosed14-34.6-2.47-2.14
Round 23G.SunC.Willenken – E.GinossarClosed14-14.9-1.06-0.07

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
+14.1Round 11🇳🇿 NEW ZEALAND106♣♠A=-2
+13.3Round 11🇳🇿 NEW ZEALAND31♠x♣A-3+9
+12.8Round 6🇦🇺 AUSTRALIA164♠♦K=+11
+11.7Round 3🇦🇷 ARGENTINA63NT♥Q-1+16
+10.6Round 14🇧🇩 BANGLADESH252♦x♣A-3+12
+9.7Round 5🇨🇦 CANADA73NT♦T=+10
+9.6Round 11🇳🇿 NEW ZEALAND63NT♠7=+6
+9.5Round 15🇬🇵 GUADELOUPE14♥♠4-1+11
+9.4Round 14🇧🇩 BANGLADESH175♣x♠A=+12
+8.2Round 1🇧🇷 BRAZIL24♠x♥2-1+11
+8.2Round 19🇹🇳 TUNISIA65♦x♣3-1+5
+8.2Round 19🇹🇳 TUNISIA145♠x♥K-2+9
+8.1Round 3🇦🇷 ARGENTINA23NT♣7=+10
+7.9Round 5🇨🇦 CANADA83NTx♠K=+10
+7.5Round 14🇧🇩 BANGLADESH193♠♦3-1+12
+7.3Round 11🇳🇿 NEW ZEALAND124♠♥7+1+1
+7.2Round 19🇹🇳 TUNISIA33♠♣8-1+12
+7.2Round 19🇹🇳 TUNISIA114♥♠3=+7
+7.0Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND275♣x♥6-3+12
+6.3Round 13🇸🇪 SWEDEN146NT♣3=-11
+6.2Round 3🇦🇷 ARGENTINA115♦♠A=+0
+6.2Round 8🇮🇳 INDIA174♠♦Q=+8
+6.2Round 22🇩🇰 DENMARK264♥♦K-1+12
+6.1Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND231NT♠J+2+10
+5.9Round 4🇳🇴 NORWAY254♥♣6=+3
+5.9Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND194♠x♥2=+12
+5.8Round 4🇳🇴 NORWAY215♣♦A=+7
+5.8Round 17🇰🇷 KOREA61♥x♣Q-2+3
+5.7Round 17🇰🇷 KOREA113♦x♥5-2+4
+5.6Round 17🇰🇷 KOREA124♠♦A-3+1
+5.4Round 23🇺🇸 USA2126NTx♣5-1+17
+5.2Round 6🇦🇺 AUSTRALIA204♠♥8=+1
+4.8Round 11🇳🇿 NEW ZEALAND24♠x♦T-3+8
+4.8Round 23🇺🇸 USA294♠♥9+1+0
+4.5Round 22🇩🇰 DENMARK274♠♣A=-1
+4.4Round 15🇬🇵 GUADELOUPE65♦x♣Q-2+12
+4.2Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND183♦♥A-1-2
+4.1Round 18🇫🇷 FRANCE255♠♦6-1+5
+4.0Round 1🇧🇷 BRAZIL132♦♣2=+6
+4.0Round 8🇮🇳 INDIA163NT♥3-1+12
+4.0Round 18🇫🇷 FRANCE244♥x♠K-2+9
+3.9Round 4🇳🇴 NORWAY265♠x♥A-1+0
+3.9Round 11🇳🇿 NEW ZEALAND72NT♠3=+1
+3.9Round 17🇰🇷 KOREA43♦♠4-1+5
+3.9Round 18🇫🇷 FRANCE234♠♦2-1+6
+3.6Round 6🇦🇺 AUSTRALIA234♦♥Q-1+12
+3.4Round 8🇮🇳 INDIA282♠♣A-1+4
+3.3Round 12🇮🇹 ITALY213♥♥2=+0
+3.3Round 15🇬🇵 GUADELOUPE54♥♦Q=+0
+3.3Round 18🇫🇷 FRANCE214♥♦3=+3
+3.3Round 19🇹🇳 TUNISIA14♥♦K=+0
+3.2Round 6🇦🇺 AUSTRALIA173♥♥3-1+4
+3.1Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND254♠x♥Q-2+2
+3.0Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND155♥♦K+1+8
+3.0Round 11🇳🇿 NEW ZEALAND134♥♠J-1-1
+2.6Round 13🇸🇪 SWEDEN115♦♣A+1-11
+2.5Round 3🇦🇷 ARGENTINA93♣♥5-1+6
+2.5Round 11🇳🇿 NEW ZEALAND12NT♣7-2+11
+2.4Round 15🇬🇵 GUADELOUPE31NT♣A=+6
+2.1Round 12🇮🇹 ITALY233♠♥3-1+1
+2.1Round 22🇩🇰 DENMARK254♥♦4+1+0
+1.9Round 1🇧🇷 BRAZIL72♠♦A+3+10
+1.9Round 5🇨🇦 CANADA42♠♣Q=+0
+1.9Round 8🇮🇳 INDIA273♦♠7=+8
+1.8Round 19🇹🇳 TUNISIA53♥♣A-1+4
+1.7Round 6🇦🇺 AUSTRALIA153♠♥A+1+6
+1.7Round 11🇳🇿 NEW ZEALAND53NT♠3-1+5
+1.7Round 12🇮🇹 ITALY151♠x♦Q=+2
+1.6Round 6🇦🇺 AUSTRALIA253NT♠Q+2+1
+1.6Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND172♦♠Q=-2
+1.6Round 11🇳🇿 NEW ZEALAND43NT♦3+1+4
+1.6Round 14🇧🇩 BANGLADESH264♠♦7=+0
+1.5Round 17🇰🇷 KOREA24♠♣3+1+0
+1.4Round 14🇧🇩 BANGLADESH272♠♦3+1+0
+1.4Round 17🇰🇷 KOREA33NT♦7=+0
+1.3Round 6🇦🇺 AUSTRALIA221NT♥6-1+5
+1.3Round 15🇬🇵 GUADELOUPE95♦x♠T-1+8
+1.3Round 22🇩🇰 DENMARK193♠♣A-1+2
+1.3Round 23🇺🇸 USA261NT♣5=+5
+1.2Round 4🇳🇴 NORWAY154♥♦Q=+11
+1.1Round 1🇧🇷 BRAZIL143NT♣2+2+1
+1.1Round 14🇧🇩 BANGLADESH214♠♦J+1+1
+1.0Round 5🇨🇦 CANADA146♥♦6+1+11
+1.0Round 15🇬🇵 GUADELOUPE22♠♣J+2-8
+0.9Round 13🇸🇪 SWEDEN44♥♦7+1+0
+0.8Round 5🇨🇦 CANADA15♥♣K-1-2
+0.8Round 8🇮🇳 INDIA202NT♥3-1-5
+0.8Round 13🇸🇪 SWEDEN56NT♠3=+0
+0.7Round 3🇦🇷 ARGENTINA53NT♣6+2+0
+0.7Round 4🇳🇴 NORWAY184♥♣A+1-11
+0.7Round 5🇨🇦 CANADA23NT♣3+3+11
+0.7Round 8🇮🇳 INDIA243♥♦A-1+4
+0.7Round 13🇸🇪 SWEDEN34♥♣J=-1
+0.7Round 18🇫🇷 FRANCE182♠♥K+1+0
+0.7Round 23🇺🇸 USA233NT♠3+2+1
+0.6Round 1🇧🇷 BRAZIL35♦♠A+1+10
+0.6Round 1🇧🇷 BRAZIL63♥♠Q-1+6
+0.6Round 12🇮🇹 ITALY204♠♥A+2-13
+0.6Round 13🇸🇪 SWEDEN84♥♠Q+1+1
+0.6Round 19🇹🇳 TUNISIA73♦♣A+1-10
+0.5Round 5🇨🇦 CANADA104♠♦3=+0
+0.4Round 11🇳🇿 NEW ZEALAND91♠♦Q+1+0
+0.3Round 1🇧🇷 BRAZIL104♥♦2=+0
+0.3Round 8🇮🇳 INDIA252♠♦K-2+1
+0.3Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND204♠♣6=+0
+0.3Round 12🇮🇹 ITALY253NT♥2+2+0
+0.2Round 15🇬🇵 GUADELOUPE105♠♦4=+0
+0.2Round 23🇺🇸 USA284♥♦Q+1+0
+0.1Round 4🇳🇴 NORWAY163NT♥7=+0
+0.1Round 19🇹🇳 TUNISIA23NT♥7+1+0
-0.0Round 1🇧🇷 BRAZIL54♠♥J+1+0
+0.0Round 1🇧🇷 BRAZIL94♥♦K+2-11
+0.0Round 3🇦🇷 ARGENTINA123♠♣T=+7
+0.0Round 4🇳🇴 NORWAY173NT♦T+1+1
+0.0Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND263NT♥9=+1
+0.0Round 12🇮🇹 ITALY174♠♥Q+1+0
+0.0Round 15🇬🇵 GUADELOUPE126♠♦K=+0
-0.0Round 19🇹🇳 TUNISIA134♠♥3+1+0
-0.1Round 5🇨🇦 CANADA133♦♠4=+0
-0.1Round 8🇮🇳 INDIA215♠♦2=+0
-0.2Round 1🇧🇷 BRAZIL83NT♣3=-1
-0.2Round 14🇧🇩 BANGLADESH161NT♠6+1+0
-0.2Round 14🇧🇩 BANGLADESH233NT♣7+2+0
-0.2Round 15🇬🇵 GUADELOUPE81NT♥Q-1-3
-0.2Round 23🇺🇸 USA244♥♥2+1+0
-0.3Round 3🇦🇷 ARGENTINA104♥♥3+2-13
-0.3Round 5🇨🇦 CANADA64♠♣3=+0
-0.3Round 6🇦🇺 AUSTRALIA182NT♠J-1+0
-0.3Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND282♠♣2=-1
-0.3Round 14🇧🇩 BANGLADESH153NT♠7+2-1
-0.3Round 18🇫🇷 FRANCE284♥♣2+1+0
-0.3Round 23🇺🇸 USA272♦♥A-1+0
-0.3Round 23🇺🇸 USA2103♠♣8-2-7
-0.4Round 12🇮🇹 ITALY274♥♠Q+1+11
-0.4Round 13🇸🇪 SWEDEN94♠♣6-2-11
-0.4Round 17🇰🇷 KOREA131NT♥5=-1
-0.5Round 13🇸🇪 SWEDEN23NT♣3=-1
-0.5Round 18🇫🇷 FRANCE177♣♣3=-2
-0.5Round 22🇩🇰 DENMARK214♠♥Q+2-1
-0.5Round 23🇺🇸 USA213NT♥2+2+10
-0.6Round 15🇬🇵 GUADELOUPE144♥♠3=-1
-0.6Round 18🇫🇷 FRANCE223NT♠5+1+0
-0.6Round 22🇩🇰 DENMARK154♥♦3+1+0
-0.7Round 8🇮🇳 INDIA223NT♠J=-1
-0.7Round 8🇮🇳 INDIA234♠♣5+1+0
-0.7Round 12🇮🇹 ITALY224♠♦7=-1
-0.7Round 15🇬🇵 GUADELOUPE72♥♠5+2-10
-0.8Round 5🇨🇦 CANADA54♥♣J=+1
-0.8Round 17🇰🇷 KOREA103♦♣4=+0
-0.9Round 4🇳🇴 NORWAY274♥♦Q-1-6
-0.9Round 13🇸🇪 SWEDEN63♥♠Q=+0
-0.9Round 13🇸🇪 SWEDEN124♥♣K=-3
-0.9Round 14🇧🇩 BANGLADESH222♠♥T+1+0
-0.9Round 23🇺🇸 USA2131NT♣J+1+0
-1.0Round 8🇮🇳 INDIA263♥♣2=+0
-1.1Round 1🇧🇷 BRAZIL43NT♦5-1+1
-1.1Round 6🇦🇺 AUSTRALIA215♦♥6=+0
-1.2Round 3🇦🇷 ARGENTINA44♥♠T+3-2
-1.2Round 4🇳🇴 NORWAY203♠♣A-1+0
-1.2Round 18🇫🇷 FRANCE162♥♣2-1+1
-1.3Round 1🇧🇷 BRAZIL13♥♣A=-1
-1.3Round 1🇧🇷 BRAZIL124♠♦J=+0
-1.3Round 18🇫🇷 FRANCE205♦♠T-1-9
-1.3Round 23🇺🇸 USA255♣x♦T-2+0
-1.4Round 4🇳🇴 NORWAY193♠♣3-1-6
-1.4Round 5🇨🇦 CANADA34♠♦8=+0
-1.4Round 6🇦🇺 AUSTRALIA272♠♦A-1-4
-1.5Round 4🇳🇴 NORWAY234♠♣2+2+13
-1.5Round 5🇨🇦 CANADA126♥♦3+1+11
-1.5Round 18🇫🇷 FRANCE154♥♥4+2-1
-1.5Round 22🇩🇰 DENMARK241NT♣8+1-6
-1.6Round 22🇩🇰 DENMARK233♠♥6=+0
-1.8Round 12🇮🇹 ITALY185♦♥3+2-1
-1.8Round 15🇬🇵 GUADELOUPE133NT♠4-2-8
-1.9Round 12🇮🇹 ITALY164♠♦5+1+0
-2.0Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND214♠♦6=+0
-2.2Round 8🇮🇳 INDIA183♥♦8-1+1
-2.2Round 13🇸🇪 SWEDEN13♥♠9-3-6
-2.2Round 19🇹🇳 TUNISIA123NT♠3+1-10
-2.3Round 1🇧🇷 BRAZIL113NT♣4+2-1
-2.3Round 6🇦🇺 AUSTRALIA193♦♠2+2+1
-2.3Round 12🇮🇹 ITALY194♠♥A=-3
-2.3Round 12🇮🇹 ITALY284♦♦5-1+5
-2.3Round 13🇸🇪 SWEDEN104♥♠K=-3
-2.3Round 14🇧🇩 BANGLADESH282♠♦4+1+0
-2.3Round 17🇰🇷 KOREA14♥♥5+1-1
-2.3Round 18🇫🇷 FRANCE264♠♥3=+0
-2.7Round 11🇳🇿 NEW ZEALAND145♦♠2=-3
-2.7Round 15🇬🇵 GUADELOUPE42♠♦A-2-3
-3.1Round 3🇦🇷 ARGENTINA14♥♣Q=+0
-3.1Round 6🇦🇺 AUSTRALIA262♥♣4=-6
-3.3Round 22🇩🇰 DENMARK173NT♣5=+1
-3.4Round 5🇨🇦 CANADA113♦x♣A-2+3
-3.4Round 18🇫🇷 FRANCE194♠♣J+2-14
-3.5Round 19🇹🇳 TUNISIA83♥♦7=-7
-3.6Round 3🇦🇷 ARGENTINA131NT♦7-1-6
-3.8Round 11🇳🇿 NEW ZEALAND82♥♦T+1-7
-3.8Round 12🇮🇹 ITALY247♥♠J=+0
-3.9Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND223NT♠6=+2
-3.9Round 14🇧🇩 BANGLADESH203NT♠6+1-4
-3.9Round 22🇩🇰 DENMARK202♠♣3+1+0
-4.0Round 17🇰🇷 KOREA53♠♣A=+0
-4.3Round 15🇬🇵 GUADELOUPE113NT♠6-1-8
-4.3Round 17🇰🇷 KOREA92♣x♣Q-2-10
-4.3Round 18🇫🇷 FRANCE276♥♣K-1-4
-4.5Round 12🇮🇹 ITALY262NT♠3-2-3
-5.0Round 5🇨🇦 CANADA93♥♦K+2-6
-5.1Round 3🇦🇷 ARGENTINA143NT♥2-2-11
-5.3Round 3🇦🇷 ARGENTINA33NT♥Q-1-10
-5.3Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND243NT♠A-2-6
-5.5Round 3🇦🇷 ARGENTINA72♥♦3+2-8
-6.1Round 11🇳🇿 NEW ZEALAND113NT♠T+3-10
-6.2Round 17🇰🇷 KOREA73NT♥2-1-6
-6.2Round 17🇰🇷 KOREA143NT♥3-3-7
-6.2Round 23🇺🇸 USA2143♦♣J-3-11
-6.3Round 4🇳🇴 NORWAY285♥x♠K-3-8
-6.3Round 22🇩🇰 DENMARK283NT♥K-3-10
-7.2Round 3🇦🇷 ARGENTINA83NT♥T-1-10
-7.5Round 6🇦🇺 AUSTRALIA282♠♠K-3-10
-7.6Round 4🇳🇴 NORWAY244♠♦J=-7
-7.7Round 23🇺🇸 USA2116♥♣A=-5
-8.0Round 8🇮🇳 INDIA155♣x♠A-1-5
-8.0Round 13🇸🇪 SWEDEN7Adj.♣7-8
-8.3Round 13🇸🇪 SWEDEN135♣♦K=+11
-8.3Round 19🇹🇳 TUNISIA45♦♣3-2-17
-8.4Round 22🇩🇰 DENMARK184♠♥A-1-13
-8.8Round 6🇦🇺 AUSTRALIA243NT♦J-2-11
-8.9Round 4🇳🇴 NORWAY225♦x♦4-2-12
-9.4Round 19🇹🇳 TUNISIA106♠♥K=+13
-9.8Round 19🇹🇳 TUNISIA94♠♥A=+0
-9.9Round 23🇺🇸 USA223NT♥7+2-11
-10.0Round 14🇧🇩 BANGLADESH184♥♠3-1-12
-10.5Round 14🇧🇩 BANGLADESH243♣x♣A+1-10
-10.7Round 8🇮🇳 INDIA195♣x♠A-5-10
-11.1Round 22🇩🇰 DENMARK165♣♥J=+0
-11.2Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND167♠♠2-2-14
-11.5Round 22🇩🇰 DENMARK224♠♥K=-14
-14.5Round 17🇰🇷 KOREA84♦x♥K-5-14