🇨🇳 LIU Yizhou · CHINA

11rank
+109.9Butler · 168 bds
+0.65per board
±4.7swing
+1.03vs par /bd · #8/109
+0.71adjusted /bd
Butler per round: 3 37.6 -9.6 -5.5 24 9.6 0.3 -13.7 14.4 -1.2 22.9 28.1by round

vs par split: bidding +0.67 · play +0.36

Strength of schedule: opponents averaged +0.05/bd (a tough draw) → opponent-adjusted +0.71/bd

Card play — on target: opening leads 83.8% #20 of 109 · declarer play 70.0% #77 of 109 · defence 85.4% #40 of 109

Bidding activity — not a pass: 44.0% #47 of 109 (218/496)

Card play by contract type — on target
vs NTvs a suit
Opening leads55.6% (9)92.9% (28)
Declarer play30.0% (10)83.3% (30)
Defence88.9% (27)83.9% (62)

Opening leads by suit led: ♠ 25.0% (4) · ♥ 91.7% (12) · ♦ 100.0% (8) · ♣ 84.6% (13)

vs par by strain: NT -1.20 (49) · a suit +1.95 (119)

vs par by level: part-score +0.79 (72) · game +0.58 (85) · slam +6.09 (11)

By role: declaring -0.08/bd (-2.60 vs par · 79) · defending +1.31/bd (+4.25 vs par · 89)

By vulnerability: vulnerable +0.90/bd (+0.91 vs par · 84) · not vulnerable +0.41/bd (+1.16 vs par · 84)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2Z.YuanS.Low – L.LiClosed14+3.0+0.21-0.07
Round 3Z.YuanT.Drnovsek – T.KukuljanOpen14+37.6+2.69+5.50
Round 4Z.YuanM.Andonov – T.PavlovClosed14-9.6-0.69+0.43
Round 5Z.YuanC.Dehaye – S.BahboutOpen14-5.5-0.39-0.14
Round 7Z.YuanR.Retzler – A.OrdogOpen14+24.0+1.71+0.43
Round 10Z.YuanA.Majcher – P.PatreuhaOpen14+9.6+0.69+2.29
Round 11Z.YuanS.Guzvica – M.SimicClosed14+0.3+0.02+2.00
Round 12Z.YuanS.Kushari – S.RoyClosed14-13.7-0.98-0.14
Round 13Z.YuanS.Li – C.LinOpen14+14.4+1.03+1.14
Round 15Z.YuanA.Bauer – V.OttoClosed14-1.2-0.09-2.36
Round 18Z.YuanY.Ben David – I.GinossarClosed14+22.9+1.64+3.00
Round 19Z.YuanA.Akbiyik – F.AydinClosed14+28.1+2.01+0.29

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
+16.9Round 11🇷🇸 SERBIA147♠x♦2-5+17
+13.3Round 18🇮🇱 ISRAEL256♥♦2=+13
+11.9Round 13🇹🇼 CHINESE TAIPEI22♥x♠8-3+9
+11.6Round 13🇹🇼 CHINESE TAIPEI94♥♦4+3+14
+11.5Round 3🇸🇮 SLOVENIA125♠♣5-1+16
+11.0Round 12🇮🇳 INDIA286♥♣4-1+13
+10.5Round 7🇷🇴 ROMANIA95♥x♣3-3+9
+10.1Round 12🇮🇳 INDIA174♠♥4-1+10
+9.9Round 5🇧🇪 BELGIUM96♥x♦4-2+11
+9.6Round 19🇹🇷 TURKIYE104NT♥7=-1
+9.3Round 11🇷🇸 SERBIA103♣x♦2-1+13
+7.9Round 10🇵🇱 POLAND276♣♥A=+0
+7.7Round 2🇸🇬 SINGAPORE253♦♥J+2+13
+7.7Round 2🇸🇬 SINGAPORE274♠♦Q-1+10
+7.7Round 7🇷🇴 ROMANIA132♣♦Q+1+11
+7.6Round 7🇷🇴 ROMANIA14♥♠A=+3
+7.1Round 13🇹🇼 CHINESE TAIPEI123NT♦K-5+12
+6.7Round 3🇸🇮 SLOVENIA74♠♣3=+10
+6.4Round 4🇧🇬 BULGARIA226♠♥9-2+11
+6.1Round 3🇸🇮 SLOVENIA54♠♣T-1+6
+5.9Round 19🇹🇷 TURKIYE53NT♣3-2+8
+5.8Round 11🇷🇸 SERBIA113NT♠J=+3
+5.7Round 4🇧🇬 BULGARIA155♦♣3=+0
+5.6Round 18🇮🇱 ISRAEL213NT♦K-1+12
+5.5Round 3🇸🇮 SLOVENIA21♥x♦T-1+7
+4.9Round 19🇹🇷 TURKIYE75♦x♥A-1+8
+4.7Round 2🇸🇬 SINGAPORE154♠♥8+2+17
+4.7Round 3🇸🇮 SLOVENIA136♣♥9-1+17
+4.4Round 10🇵🇱 POLAND213♦♦8+2+1
+4.4Round 10🇵🇱 POLAND262♦♣Q+1+5
+4.4Round 19🇹🇷 TURKIYE62♥♥3+3-9
+4.3Round 3🇸🇮 SLOVENIA61NT♥5=+6
+4.3Round 10🇵🇱 POLAND222♥♦J=+6
+4.3Round 15🇩🇪 GERMANY34♠♥J+2+1
+4.2Round 7🇷🇴 ROMANIA84♠♥7-1+4
+4.1Round 15🇩🇪 GERMANY101NT♥Q+1-10
+3.6Round 3🇸🇮 SLOVENIA42♥♠A-1+5
+3.5Round 15🇩🇪 GERMANY143NT♦6=-2
+3.4Round 7🇷🇴 ROMANIA63♣♥K-3-8
+3.3Round 18🇮🇱 ISRAEL193♠♥J=+0
+3.3Round 19🇹🇷 TURKIYE91NT♦4-3+6
+3.1Round 18🇮🇱 ISRAEL162♠♣4=+0
+3.0Round 5🇧🇪 BELGIUM41NT♠A-3+4
+2.9Round 15🇩🇪 GERMANY93NT♥J+2+0
+2.9Round 19🇹🇷 TURKIYE111NT♣5+1-1
+2.8Round 4🇧🇬 BULGARIA193♠♦Q=+1
+2.8Round 12🇮🇳 INDIA223♠♥4-1+10
+2.8Round 13🇹🇼 CHINESE TAIPEI11NT♦K-1+4
+2.5Round 3🇸🇮 SLOVENIA92♥♣5+2+1
+2.5Round 5🇧🇪 BELGIUM53NT♦Q+2+1
+2.5Round 18🇮🇱 ISRAEL182♦♦5-1+6
+2.4Round 5🇧🇪 BELGIUM104♠♥4-1+12
+2.4Round 10🇵🇱 POLAND283♥♣9-1+5
+2.1Round 7🇷🇴 ROMANIA102♥♦Q-1+0
+1.9Round 15🇩🇪 GERMANY134♠♦4+1+0
+1.8Round 5🇧🇪 BELGIUM123♠♣J-2+7
+1.7Round 12🇮🇳 INDIA262♠♦A=+11
+1.7Round 19🇹🇷 TURKIYE14♠♥Q+2+1
+1.6Round 18🇮🇱 ISRAEL203NT♥3=-2
+1.5Round 3🇸🇮 SLOVENIA103♦♠2=+11
+1.5Round 18🇮🇱 ISRAEL173NT♣8=+2
+1.3Round 10🇵🇱 POLAND244♠♥5+2+11
+1.1Round 2🇸🇬 SINGAPORE203♠♥6-1+6
+1.1Round 5🇧🇪 BELGIUM71NT♦A-1-1
+1.1Round 7🇷🇴 ROMANIA123♣♠7-1+3
+1.1Round 10🇵🇱 POLAND152♥♦7=-1
+1.0Round 2🇸🇬 SINGAPORE213♥♣K=+6
+1.0Round 3🇸🇮 SLOVENIA143NT♥2=+3
+1.0Round 7🇷🇴 ROMANIA23♥♥3+1-6
+1.0Round 13🇹🇼 CHINESE TAIPEI134♠♦A=+1
+0.9Round 3🇸🇮 SLOVENIA84♥♣2+1+1
+0.9Round 11🇷🇸 SERBIA62♣♠8+1+7
+0.9Round 13🇹🇼 CHINESE TAIPEI52♠♣A=+1
+0.7Round 11🇷🇸 SERBIA124♥♠A+1+13
+0.7Round 15🇩🇪 GERMANY43♠♣K-1-5
+0.5Round 7🇷🇴 ROMANIA35♥x♥6-2+0
+0.5Round 18🇮🇱 ISRAEL222NT♥7=+0
+0.4Round 19🇹🇷 TURKIYE22♦♦K+2+1
+0.3Round 15🇩🇪 GERMANY64♠♠6+1+14
+0.3Round 18🇮🇱 ISRAEL264♥♠5+1-1
+0.3Round 19🇹🇷 TURKIYE125♠♦T=+0
+0.2Round 13🇹🇼 CHINESE TAIPEI142♣♣3=+0
+0.2Round 18🇮🇱 ISRAEL152♥♦K+2+8
+0.1Round 2🇸🇬 SINGAPORE234♥♣K+2-13
+0.1Round 7🇷🇴 ROMANIA142♥♦J=-1
+0.1Round 10🇵🇱 POLAND253NT♣T+1+0
-0.0Round 11🇷🇸 SERBIA131NT♥4=+2
-0.0Round 12🇮🇳 INDIA204♥♠A+1+0
-0.1Round 4🇧🇬 BULGARIA184♠♥2+1+0
-0.1Round 12🇮🇳 INDIA214♠♦8=-1
-0.1Round 13🇹🇼 CHINESE TAIPEI62♦♠Q+1+0
-0.1Round 15🇩🇪 GERMANY14♠♣T+1+0
-0.1Round 15🇩🇪 GERMANY125♦♦4+1-11
-0.1Round 19🇹🇷 TURKIYE84♥♦8=+7
-0.1Round 19🇹🇷 TURKIYE132♠♥A+2-10
-0.2Round 2🇸🇬 SINGAPORE284♠♥A+2+13
-0.2Round 4🇧🇬 BULGARIA203NT♠Q+1+0
-0.2Round 18🇮🇱 ISRAEL285♠♥J=+0
-0.3Round 11🇷🇸 SERBIA83NT♣6+1+0
-0.4Round 5🇧🇪 BELGIUM13NT♥A=+0
-0.5Round 2🇸🇬 SINGAPORE163NT♠4+4-15
-0.5Round 2🇸🇬 SINGAPORE183NT♥3+1-10
-0.6Round 12🇮🇳 INDIA184♣♠K=-7
-0.7Round 10🇵🇱 POLAND233NT♣4+1-1
-0.7Round 13🇹🇼 CHINESE TAIPEI112♥♠4=-7
-0.8Round 2🇸🇬 SINGAPORE191NT♣5+1+1
-0.8Round 4🇧🇬 BULGARIA164♥♠J+1+0
-0.8Round 10🇵🇱 POLAND192♠♣8+1+0
-0.8Round 11🇷🇸 SERBIA34♥♠6=+1
-1.0Round 12🇮🇳 INDIA194♠♦A-1-6
-1.0Round 19🇹🇷 TURKIYE44♥♣J+1+0
-1.1Round 10🇵🇱 POLAND204♥x♠K-1+7
-1.2Round 13🇹🇼 CHINESE TAIPEI44♥♦A+2-1
-1.3Round 2🇸🇬 SINGAPORE243NT♣T+3-1
-1.3Round 12🇮🇳 INDIA232♣x♥K-1-3
-1.5Round 4🇧🇬 BULGARIA283♥♦Q=+0
-1.6Round 4🇧🇬 BULGARIA234♠♦9+1+13
-1.7Round 11🇷🇸 SERBIA73NT♥3+1-1
-1.7Round 13🇹🇼 CHINESE TAIPEI33NT♣J=+1
-1.8Round 5🇧🇪 BELGIUM82♥♦A-1+1
-1.8Round 7🇷🇴 ROMANIA41NT♥2=-5
-1.8Round 15🇩🇪 GERMANY84♣♣2=+0
-1.8Round 19🇹🇷 TURKIYE143♠♦3-1-4
-1.9Round 4🇧🇬 BULGARIA252♠♣K+3-2
-2.1Round 4🇧🇬 BULGARIA271NT♠9+2-1
-2.1Round 18🇮🇱 ISRAEL243♥♣2=+7
-2.2Round 5🇧🇪 BELGIUM133NT♥2+2-13
-2.3Round 7🇷🇴 ROMANIA112♠♦A-1-5
-2.3Round 18🇮🇱 ISRAEL233NT♥7=+1
-2.3Round 19🇹🇷 TURKIYE32♦♥3=-2
-2.4Round 4🇧🇬 BULGARIA214♥♦K-2+0
-2.5Round 11🇷🇸 SERBIA92♥♣2-1-2
-2.7Round 2🇸🇬 SINGAPORE172♠♣3-2-1
-2.7Round 4🇧🇬 BULGARIA174♠♣K-1-10
-2.9Round 5🇧🇪 BELGIUM33♣♠A=-6
-3.0Round 5🇧🇪 BELGIUM23NT♥T-2-6
-3.0Round 15🇩🇪 GERMANY114♣♥J=-13
-3.1Round 5🇧🇪 BELGIUM143NT♠6+1-1
-3.1Round 15🇩🇪 GERMANY71♠♣4+2+0
-3.2Round 11🇷🇸 SERBIA51NT♠A-3+4
-3.2Round 12🇮🇳 INDIA153♠♥J-1-4
-3.2Round 13🇹🇼 CHINESE TAIPEI103NT♦2-1-12
-3.3Round 7🇷🇴 ROMANIA55♥♠3-2+0
-3.4Round 3🇸🇮 SLOVENIA116NT♥Q=+0
-3.6Round 3🇸🇮 SLOVENIA15♣x♥A-2-5
-3.7Round 3🇸🇮 SLOVENIA34♠♣9+2-1
-3.7Round 10🇵🇱 POLAND184♣♣Q=+0
-4.1Round 13🇹🇼 CHINESE TAIPEI73♦♦A=-6
-4.2Round 15🇩🇪 GERMANY23NT♥K-3-7
-4.4Round 18🇮🇱 ISRAEL274♠♥J-1-4
-4.7Round 12🇮🇳 INDIA241NT♠J=-5
-4.8Round 5🇧🇪 BELGIUM62♥♠6+2-1
-4.9Round 10🇵🇱 POLAND173NT♦7=+1
-5.1Round 10🇵🇱 POLAND164♥♣8-2-2
-5.2Round 11🇷🇸 SERBIA43NT♣2=-10
-5.3Round 4🇧🇬 BULGARIA263NT♣8-1-6
-5.8Round 2🇸🇬 SINGAPORE264♥♦K-1-12
-5.9Round 4🇧🇬 BULGARIA244♠♣K=+0
-6.6Round 15🇩🇪 GERMANY54♠♦Q+1+0
-6.8Round 7🇷🇴 ROMANIA73NT♣7=+1
-7.5Round 2🇸🇬 SINGAPORE226♥♠T-1-15
-7.5Round 12🇮🇳 INDIA253♣♣2-1-6
-7.7Round 12🇮🇳 INDIA167NT♠3=+0
-8.0Round 5🇧🇪 BELGIUM113NT♦4-1-10
-8.6Round 11🇷🇸 SERBIA13NT♣4-1-10
-10.1Round 13🇹🇼 CHINESE TAIPEI86♠♥J=+0
-11.0Round 11🇷🇸 SERBIA24♠x♦5-3-9
-13.2Round 12🇮🇳 INDIA275♠♥2+1-14