🇨🇦 CHEN Yuan · CANADA

109rank
-69.4Butler · 240 bds
-0.29per board
±4.9swing
-1.18vs par /bd · #133/138
-0.38adjusted /bd
Butler per round: -40.8 12.5 23.7 19.1 34.8 -45.3 5.8 -24 -8.8 -27.3 -10.2 -10 2.5 -3.2 1.8by round

vs par split: bidding -1.02 · play -0.18

Strength of schedule: opponents averaged -0.09/bd (an easy draw) → opponent-adjusted -0.38/bd

Card play — on target: opening leads 73.6% #129 of 138 · declarer play 75.0% #70 of 138 · defence 82.0% #104 of 138

Card play by contract type — on target
vs NTvs a suit
Opening leads66.7% (15)76.3% (38)
Declarer play58.3% (12)78.8% (52)
Defence81.6% (38)82.2% (73)

Opening leads by suit led: ♠ 75.0% (16) · ♥ 80.0% (10) · ♦ 69.2% (13) · ♣ 71.4% (14)

vs par by strain: NT -1.12 (74) · a suit -1.23 (165)

vs par by level: part-score +0.24 (80) · game -1.24 (137) · slam -6.14 (22)

By role: declaring +0.04/bd (-3.26 vs par · 128) · defending -0.67/bd (+1.21 vs par · 112)

By vulnerability: vulnerable -0.17/bd (-1.37 vs par · 120) · not vulnerable -0.41/bd (-0.98 vs par · 120)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1Z.HuJ.Castillo – J.OchoaClosed16-40.8-2.55-4.50
Round 2Z.HuK.Nabil – N.HamdyClosed16+12.5+0.78+0.69
Round 4Z.HuJ.Millens – S.HuangOpen16+23.7+1.48+0.44
Round 5Z.HuP.Pejacsevich – M.MayorgaOpen16+19.1+1.19-0.75
Round 7Z.HuD.Rotchell – P.CumminsClosed16+34.8+2.17+1.44
Round 8Z.HuN.Qasim Norani – H.SumarOpen16-45.3-2.83-3.94
Round 10Z.HuA.Gandoglia – I.BaroniOpen16+5.8+0.36+0.25
Round 11Z.HuB.Cronier – P.CronierOpen16-24.0-1.50-1.81
Round 13Z.HuA.Trabelsi – M.Farhani GoncalvesClosed16-8.8-0.55-0.06
Round 14Z.HuG.Dauwe – T.DobbelsOpen16-27.3-1.71-1.56
Round 16Z.HuM.Barel – P.KatzClosed16-10.2-0.64-2.25
Round 17Z.HuZ.Toh – J.KhoClosed16-10.0-0.62-2.56
Round 19Z.HuB.Jones – J.MillingtonClosed16+2.5+0.16+1.25
Round 20Z.HuM.Henneberg – J.HennebergClosed16-3.2-0.20-1.06
Round 22Z.HuR.Cooper – B.ThompsonClosed16+1.8+0.11-3.19

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
+16.0Round 11🇫🇷 FRANCE25♥x♠Q-5+16
+10.1Round 19🇳🇿 NEW ZEALAND43NT♠6-3+4
+9.7Round 13🇹🇳 TUNISIA15♣x♥7-2+12
+9.6Round 10🇮🇹 ITALY206♥♣A=+0
+9.1Round 5🇦🇷 ARGENTINA36♠♥5=+0
+8.9Round 7🇧🇧 BARBADOS155♥♠4-3+4
+8.9Round 7🇧🇧 BARBADOS163NT♠9=-1
+8.7Round 19🇳🇿 NEW ZEALAND76♣♥A=-2
+8.2Round 5🇦🇷 ARGENTINA145♣♠A+1-11
+7.8Round 1🇨🇴 COLOMBIA42NT♠10-3+9
+7.7Round 17🇸🇬 SINGAPORE117♣♣2-1+11
+7.6Round 5🇦🇷 ARGENTINA165♥♣K+1-3
+7.5Round 4🇺🇸 USA1223♠x♦3-2+10
+7.4Round 22🇦🇺 AUSTRALIA123NT♥Q-1+12
+7.2Round 13🇹🇳 TUNISIA55♣♠5-3+5
+7.2Round 13🇹🇳 TUNISIA133NT♣Q-4+6
+7.0Round 8🇦🇪 UAE215♥♠A-2+2
+7.0Round 20🇩🇰 DENMARK105♣♥K=+0
+6.7Round 22🇦🇺 AUSTRALIA96NT♥5+1-13
+6.5Round 16🇮🇱 ISRAEL263NT♦A=+10
+6.4Round 10🇮🇹 ITALY306♥♠5=+0
+6.3Round 2🇪🇬 EGYPT303NT♣2-1+5
+6.3Round 20🇩🇰 DENMARK125♣x♣2=+4
+5.8Round 7🇧🇧 BARBADOS133NT♣10+1+0
+5.4Round 7🇧🇧 BARBADOS114♥♠10-1+11
+5.2Round 10🇮🇹 ITALY324♠♥K-2+11
+5.0Round 2🇪🇬 EGYPT273♠♠J-2+6
+5.0Round 22🇦🇺 AUSTRALIA133♠♣4-3+5
+4.8Round 10🇮🇹 ITALY263NT♠6-1+6
+4.8Round 17🇸🇬 SINGAPORE165♠♣3=-4
+4.7Round 11🇫🇷 FRANCE95♣♠A-2+6
+4.7Round 11🇫🇷 FRANCE163NT♠10+1+0
+4.6Round 2🇪🇬 EGYPT233♣♦K=-1
+4.3Round 2🇪🇬 EGYPT174♥♠K-1+5
+4.1Round 4🇺🇸 USA1314♥♣6-1+6
+4.1Round 5🇦🇷 ARGENTINA131NT♣4+1+6
+3.9Round 7🇧🇧 BARBADOS15♥♦10+1+11
+3.8Round 4🇺🇸 USA1261NT♥7+3+10
+3.8Round 4🇺🇸 USA1286♦♣7=-2
+3.7Round 5🇦🇷 ARGENTINA41NT♦Q=+5
+3.7Round 7🇧🇧 BARBADOS101NT♠A=+0
+3.7Round 19🇳🇿 NEW ZEALAND165♣♥A=+7
+3.7Round 22🇦🇺 AUSTRALIA154♠♣10+2-11
+3.5Round 14🇧🇪 BELGIUM304♥♣4+2-1
+3.4Round 4🇺🇸 USA1304♠♣3+1+0
+3.3Round 16🇮🇱 ISRAEL304♥♠3+3-10
+3.3Round 20🇩🇰 DENMARK112♣♠Q+1+0
+3.2Round 1🇨🇴 COLOMBIA13NT♠6+1+1
+3.1Round 7🇧🇧 BARBADOS32♥♦A-1-1
+3.1Round 17🇸🇬 SINGAPORE32♦♠4=-2
+3.1Round 20🇩🇰 DENMARK154♣♠5=+6
+3.1Round 20🇩🇰 DENMARK163NT♥3=+0
+3.0Round 4🇺🇸 USA1253♥♦4=+7
+3.0Round 7🇧🇧 BARBADOS54♣x♦K-3+14
+2.9Round 14🇧🇪 BELGIUM284♥♦9-1+6
+2.7Round 13🇹🇳 TUNISIA114♠♦6-3+1
+2.7Round 17🇸🇬 SINGAPORE73♠♦6-2-2
+2.7Round 22🇦🇺 AUSTRALIA105♦♥2=+0
+2.6Round 4🇺🇸 USA1195♥♥2=+0
+2.6Round 4🇺🇸 USA1323NT♦5+2-12
+2.6Round 5🇦🇷 ARGENTINA104♥♦J=+0
+2.6Round 17🇸🇬 SINGAPORE82♥♦K+2+1
+2.6Round 19🇳🇿 NEW ZEALAND94♥♠J+1+1
+2.4Round 17🇸🇬 SINGAPORE144♥♦A-3+2
+2.3Round 4🇺🇸 USA1175♠♥K-2+6
+2.2Round 7🇧🇧 BARBADOS44♠♥10+1+0
+2.2Round 8🇦🇪 UAE181♠♥5+1+0
+2.2Round 13🇹🇳 TUNISIA33NT♣10+2-13
+2.2Round 16🇮🇱 ISRAEL283♥♦4=+0
+2.1Round 2🇪🇬 EGYPT293NT♠6+1+0
+2.1Round 13🇹🇳 TUNISIA6Pass+4
+2.0Round 22🇦🇺 AUSTRALIA51NT♠4+1+11
+1.9Round 19🇳🇿 NEW ZEALAND144♥♠6+1+4
+1.8Round 2🇪🇬 EGYPT182♦♥J+1+0
+1.8Round 5🇦🇷 ARGENTINA153NT♠4+1+12
+1.7Round 2🇪🇬 EGYPT324♥♣Q=-1
+1.7Round 7🇧🇧 BARBADOS123NT♥3+1+1
+1.7Round 14🇧🇪 BELGIUM183♥♠A-1-4
+1.6Round 5🇦🇷 ARGENTINA93NT♥7+3+1
+1.4Round 5🇦🇷 ARGENTINA14♥♣J+2-11
+1.4Round 14🇧🇪 BELGIUM313♠♦3=+0
+1.3Round 2🇪🇬 EGYPT201♥♠10+2+0
+1.3Round 14🇧🇪 BELGIUM263♥♣Q=+7
+1.3Round 16🇮🇱 ISRAEL181NT♥6=-1
+1.2Round 2🇪🇬 EGYPT254♥♦9+1+0
+1.2Round 2🇪🇬 EGYPT313NT♥10+2+0
+1.2Round 4🇺🇸 USA1294♠♣3-2-8
+1.1Round 13🇹🇳 TUNISIA83NT♦2=+14
+1.1Round 20🇩🇰 DENMARK15♣♦Q=-7
+1.1Round 20🇩🇰 DENMARK73♣♥2=+10
+1.0Round 1🇨🇴 COLOMBIA103NT♣2=+1
+1.0Round 5🇦🇷 ARGENTINA64♠♥J=+11
+1.0Round 7🇧🇧 BARBADOS91NT♠J-1+5
+1.0Round 13🇹🇳 TUNISIA43NT♠3=+0
+1.0Round 14🇧🇪 BELGIUM291NT♠10-1+0
+0.9Round 16🇮🇱 ISRAEL212♥♦6-1-1
+0.9Round 16🇮🇱 ISRAEL223♠♥3+1+6
+0.9Round 16🇮🇱 ISRAEL252NT♣5+1+0
+0.8Round 5🇦🇷 ARGENTINA74♥♣10+1+0
+0.8Round 16🇮🇱 ISRAEL205♥♦K+1+1
+0.7Round 4🇺🇸 USA1272♠♥10-2+0
+0.7Round 10🇮🇹 ITALY242♥♠3+1+1
+0.7Round 10🇮🇹 ITALY294♥♦5=-1
+0.7Round 19🇳🇿 NEW ZEALAND104♠♦K=+1
+0.7Round 22🇦🇺 AUSTRALIA114♥♦9+3-14
+0.6Round 11🇫🇷 FRANCE33NT♠2+1+0
+0.5Round 8🇦🇪 UAE302♠♥K+1+1
+0.4Round 1🇨🇴 COLOMBIA163NT♠10+2-12
+0.4Round 10🇮🇹 ITALY173NT♦Q+1+0
+0.4Round 19🇳🇿 NEW ZEALAND153♥♦A=+0
+0.4Round 22🇦🇺 AUSTRALIA44♥♣K+1+0
+0.3Round 19🇳🇿 NEW ZEALAND84♠♦10=+1
+0.2Round 8🇦🇪 UAE272♠♣A-2-1
+0.2Round 17🇸🇬 SINGAPORE66♥♠4+1-13
+0.2Round 20🇩🇰 DENMARK44♠♣3+2+13
+0.2Round 20🇩🇰 DENMARK94♠♦9=+0
+0.1Round 8🇦🇪 UAE192♦♠Q=+0
+0.1Round 22🇦🇺 AUSTRALIA33♠♦3=-10
-0.0Round 10🇮🇹 ITALY234♥♦J=+3
+0.0Round 14🇧🇪 BELGIUM212♦♠Q+2-1
-0.0Round 17🇸🇬 SINGAPORE124♥♠10+1+0
-0.0Round 19🇳🇿 NEW ZEALAND64♠♦A+1+0
-0.0Round 22🇦🇺 AUSTRALIA24♥♠6+2-11
-0.1Round 13🇹🇳 TUNISIA103NT♣2+1-1
-0.2Round 1🇨🇴 COLOMBIA86♥♣9+1-11
-0.2Round 1🇨🇴 COLOMBIA152♠♥5-1+2
-0.2Round 10🇮🇹 ITALY222♠♥A=+0
-0.2Round 17🇸🇬 SINGAPORE12♠♥A=+0
-0.2Round 19🇳🇿 NEW ZEALAND122♥♣3-1+11
-0.3Round 1🇨🇴 COLOMBIA133NT♠7-1+5
-0.3Round 14🇧🇪 BELGIUM272♥♠K-1-4
-0.3Round 16🇮🇱 ISRAEL271NT♣2=+0
-0.4Round 8🇦🇪 UAE323♦♥K+2-8
-0.4Round 14🇧🇪 BELGIUM244♥♠8-2+5
-0.5Round 2🇪🇬 EGYPT193NT♥6+1+0
-0.5Round 14🇧🇪 BELGIUM202♦♦6=-1
-0.6Round 4🇺🇸 USA1183♦♥K-2+1
-0.6Round 16🇮🇱 ISRAEL313NT♣8+2+0
-0.7Round 2🇪🇬 EGYPT224♥♣K=+0
-0.7Round 4🇺🇸 USA1233NT♠9-1+6
-0.7Round 13🇹🇳 TUNISIA123NT♠6=-1
-0.8Round 10🇮🇹 ITALY284♥♠4-1+2
-0.8Round 11🇫🇷 FRANCE134♠♦9=-13
-0.9Round 13🇹🇳 TUNISIA163NT♥7=+0
-0.9Round 14🇧🇪 BELGIUM324♠♦6+1+0
-0.9Round 17🇸🇬 SINGAPORE92♥♦K-2-1
-1.0Round 2🇪🇬 EGYPT214♠♣K+2+12
-1.0Round 4🇺🇸 USA1212♠♦A-2-5
-1.0Round 11🇫🇷 FRANCE13NT♣4+3+11
-1.0Round 11🇫🇷 FRANCE123♠♥Q-1+2
-1.0Round 19🇳🇿 NEW ZEALAND115♠♣A-2+0
-1.1Round 7🇧🇧 BARBADOS142NT♠6-1-2
-1.2Round 11🇫🇷 FRANCE155♠♣J+1-11
-1.2Round 13🇹🇳 TUNISIA23♠♥A+1+10
-1.3Round 2🇪🇬 EGYPT261NT♦2-1+0
-1.3Round 5🇦🇷 ARGENTINA54♠♥10+1+0
-1.3Round 22🇦🇺 AUSTRALIA145♣♥Q+1-11
-1.4Round 7🇧🇧 BARBADOS64♥♠2+1+0
-1.4Round 7🇧🇧 BARBADOS83♥♣4=+0
-1.4Round 16🇮🇱 ISRAEL193♦♠8=-1
-1.5Round 5🇦🇷 ARGENTINA114♠♣K-2-6
-1.5Round 20🇩🇰 DENMARK23NT♣5+2+0
-1.6Round 2🇪🇬 EGYPT244♥♠A=+0
-1.6Round 16🇮🇱 ISRAEL173NT♠6+3-10
-1.6Round 20🇩🇰 DENMARK83♥♠5+1-2
-1.7Round 1🇨🇴 COLOMBIA143NT♥2=-7
-1.7Round 10🇮🇹 ITALY312♥x♦9-1+0
-1.8Round 4🇺🇸 USA1244♠♣8+3-2
-1.8Round 11🇫🇷 FRANCE72♠♥K+1+0
-1.8Round 17🇸🇬 SINGAPORE135♣x♥3-1-8
-1.9Round 8🇦🇪 UAE312NT♠2=-1
-1.9Round 10🇮🇹 ITALY251NT♦3+1-1
-1.9Round 10🇮🇹 ITALY273♥♣J=+4
-2.0Round 8🇦🇪 UAE244♠♥J=+0
-2.0Round 16🇮🇱 ISRAEL241NT♦2-1-3
-2.0Round 20🇩🇰 DENMARK133NT♠Q+2-1
-2.0Round 22🇦🇺 AUSTRALIA165♥♠K-1+3
-2.1Round 22🇦🇺 AUSTRALIA12NT♠Q-1-4
-2.2Round 11🇫🇷 FRANCE63♥♦K=+0
-2.2Round 14🇧🇪 BELGIUM193NT♣4+1+0
-2.3Round 8🇦🇪 UAE206♠♦A=+0
-2.3Round 11🇫🇷 FRANCE113♦♣5=+0
-2.5Round 13🇹🇳 TUNISIA91NT♠4-1-6
-2.7Round 7🇧🇧 BARBADOS24♥♣J+3-14
-3.0Round 20🇩🇰 DENMARK62♠♥3-1-5
-3.1Round 1🇨🇴 COLOMBIA32♠♥A-2-7
-3.1Round 14🇧🇪 BELGIUM174♥♦5+1+0
-3.2Round 8🇦🇪 UAE253NT♥9-2-7
-3.2Round 22🇦🇺 AUSTRALIA71NT♣K-1-1
-3.4Round 8🇦🇪 UAE285♥♦K-1-5
-3.7Round 5🇦🇷 ARGENTINA84♠♥5-1-5
-3.7Round 19🇳🇿 NEW ZEALAND54♥♠A-2+1
-3.8Round 17🇸🇬 SINGAPORE103♣♦6+1-1
-3.9Round 1🇨🇴 COLOMBIA114♥♦10=+0
-4.0Round 16🇮🇱 ISRAEL233NT♠9-2-13
-4.0Round 19🇳🇿 NEW ZEALAND14♠♥8+1-1
-4.0Round 19🇳🇿 NEW ZEALAND26♣♦3=+0
-4.2Round 10🇮🇹 ITALY211♥x♣4-2-5
-4.4Round 1🇨🇴 COLOMBIA92NT♠4=+0
-4.7Round 17🇸🇬 SINGAPORE44♠♠8=+0
-5.0Round 10🇮🇹 ITALY183NT♠9+4-10
-5.1Round 1🇨🇴 COLOMBIA74♥♣K=-9
-5.3Round 11🇫🇷 FRANCE104♠♦2-1-6
-5.4Round 1🇨🇴 COLOMBIA24♠♣8-1-10
-5.4Round 17🇸🇬 SINGAPORE153NT♣7=-10
-5.7Round 11🇫🇷 FRANCE146♦♣Q=-12
-5.9Round 20🇩🇰 DENMARK142♥♦A+1-11
-6.2Round 7🇧🇧 BARBADOS71NTx♠8-3-5
-6.3Round 8🇦🇪 UAE176♣♠A=-3
-6.3Round 10🇮🇹 ITALY194♠♦K-1-6
-6.4Round 19🇳🇿 NEW ZEALAND33NT♥10=+0
-6.5Round 20🇩🇰 DENMARK56♥♠2-3-11
-6.6Round 8🇦🇪 UAE234♣♦10=-10
-6.6Round 19🇳🇿 NEW ZEALAND133NTx♥9-1-7
-6.9Round 11🇫🇷 FRANCE54♥♣8=+0
-7.0Round 5🇦🇷 ARGENTINA22♥♣3=+0
-7.2Round 4🇺🇸 USA1203NT♣2=-10
-7.3Round 1🇨🇴 COLOMBIA63NT♦10-1-9
-7.6Round 14🇧🇪 BELGIUM233NT♠J-1-12
-7.7Round 11🇫🇷 FRANCE85♠x♥6=-8
-7.8Round 13🇹🇳 TUNISIA74♠♥6+1-4
-8.1Round 20🇩🇰 DENMARK36♠♣K-2-13
-8.2Round 16🇮🇱 ISRAEL293NT♥6-1-6
-8.2Round 17🇸🇬 SINGAPORE56NT♦J-2-14
-8.4Round 8🇦🇪 UAE293NT♦3+1-10
-8.5Round 17🇸🇬 SINGAPORE26NT♠9=+0
-8.6Round 22🇦🇺 AUSTRALIA84♥♠3=-7
-8.9Round 8🇦🇪 UAE225♣x♥J=-9
-8.9Round 16🇮🇱 ISRAEL323♠♦A+1-8
-9.0Round 14🇧🇪 BELGIUM224♥♣9-2-7
-9.2Round 1🇨🇴 COLOMBIA123NT♥2=-10
-9.3Round 5🇦🇷 ARGENTINA123NT♣6-2-11
-9.7Round 22🇦🇺 AUSTRALIA66♥♦7=+0
-11.9Round 2🇪🇬 EGYPT282♠x♥A+2-15
-11.9Round 8🇦🇪 UAE266♦♣9-1-12
-12.4Round 1🇨🇴 COLOMBIA56♦♠K=-15
-13.5Round 13🇹🇳 TUNISIA155♠x♥J=-16
-14.1Round 11🇫🇷 FRANCE44♠x♦A-4-14
-15.1Round 14🇧🇪 BELGIUM256♥x♦K-6-13
-15.3Round 13🇹🇳 TUNISIA147♣x♣2=-12