🇨🇦 CHENG Ziyu (Max) · CANADA

54rank
+36.6Butler · 204 bds
+0.18per board
±5.1swing
+0.46vs par /bd · #31/92
+0.22adjusted /bd
Butler per round: 10.9 20.8 29.5 40 -8.7 -33.9 0.4 -0.1 -15.1 17.6 -20.1 -22.1 -22.6 38.4 -16.3 18 -0.1by round

vs par split: bidding +0.31 · play +0.15

Strength of schedule: opponents averaged +0.04/bd (an average draw) → opponent-adjusted +0.22/bd

Card play — on target: opening leads 83.7% #19 of 92 · declarer play 83.6% #5 of 92 · defence 78.1% #67 of 92

Card play by contract type — on target
vs NTvs a suit
Opening leads91.7% (12)80.6% (31)
Declarer play86.7% (15)82.6% (46)
Defence65.7% (35)84.3% (70)

Opening leads by suit led: ♠ 87.5% (8) · ♥ 87.5% (8) · ♦ 61.5% (13) · ♣ 100.0% (14)

vs par by strain: NT -0.40 (58) · a suit +0.80 (146)

vs par by level: part-score +1.12 (80) · game -0.10 (110) · slam +1.00 (14)

By role: declaring +0.63/bd (-1.28 vs par · 99) · defending -0.25/bd (+2.10 vs par · 105)

By vulnerability: vulnerable +0.52/bd (+0.84 vs par · 102) · not vulnerable -0.16/bd (+0.07 vs par · 102)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1C.HeMENEZES KAMRYN – PINTO JOHANN JOSEClosed12+10.9+0.91+0.75
Round 2C.HeM.Austad – K.BrekkeOpen12+20.8+1.73+1.17
Round 3C.HeR.Xie – L.HsuClosed12+29.5+2.46-0.08
Round 4C.HeX.Dai – T.ChenOpen12+40.0+3.33+2.83
Round 5C.HeC.Pedersen – A.BuneClosed12-8.7-0.72-0.25
Round 6C.HeL.Rombaut – A.GallardOpen12-33.9-2.82-4.33
Round 7C.HeH.Luba – M.XuClosed12+0.4+0.03+1.75
Round 8C.HeD.Msika – O.SabbahOpen12-0.1-0.01+0.00
Round 9C.HeY.Xie – Y.WangClosed12-15.1-1.26+0.83
Round 10C.HeJ.Fegarty – L.FegartyOpen12+17.6+1.47+1.50
Round 11C.HeY.Jin – Y.AiClosed12-20.1-1.68-0.67
Round 12C.HeM.Bertheau – A.AbragiOpen12-22.1-1.84-1.58
Round 13C.HeU.Eren – T.AltunOpen12-22.6-1.88+1.42
Round 14C.HeW.Phatshwane – L.OnkutluleClosed12+38.4+3.20+4.25
Round 15C.HeI.Foteinakis – I.PapaspyrouOpen12-16.3-1.36-1.08
Round 16C.HeE.Langer – F.PaolellaOpen12+18.0+1.50-0.58
Round 17C.HeK.Ciborowski – K.KowalClosed12-0.1-0.01+1.83

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
+13.6Round 3🇹🇼 CHINESE TAIPEI66♦♥A+1-13
+12.9Round 4🇨🇳 CHINA 346NT♠A=+12
+12.8Round 1🇮🇳 INDIA73♠♦K=+13
+10.8Round 14BOTSWANA63NT♣5=+10
+10.5Round 11🇨🇳 CHINA 196♦x♥A-3+12
+9.9Round 3🇹🇼 CHINESE TAIPEI34♥♦8-1+16
+9.9Round 12🇸🇪 SWEDEN42♥x♥2=+11
+9.6Round 4🇨🇳 CHINA 364♠♠2=+10
+9.2Round 4🇨🇳 CHINA 3114♠♣5-1+10
+9.1Round 1🇮🇳 INDIA14♥♦3=+8
+8.9Round 2🇳🇴 NORWAY24♥♦Q-1+13
+8.4Round 14BOTSWANA93NT♠2-3+7
+8.1Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND24♠♣Q-2+8
+8.1Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND124♥♠K-1+12
+7.9Round 16🇩🇪 GERMANY24♥♦3=+7
+7.8Round 9🇨🇳 CHINA 233NT♠2=+10
+7.7Round 1🇮🇳 INDIA64♥♠6=+1
+7.6Round 2🇳🇴 NORWAY74♠♣A=+0
+6.9Round 17🇵🇱 POLAND37♦x♣A-4+7
+6.8Round 4🇨🇳 CHINA 373NT♣J-4+11
+6.8Round 14BOTSWANA102♠♦3+1+10
+6.6Round 5🇩🇰 DENMARK14♠♣A=+8
+6.6Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND73♠♣J+1+10
+6.4Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND43NT♥J-3+5
+5.6Round 6🇫🇷 FRANCE14♠♥J=+0
+5.6Round 14BOTSWANA115♦x♠K-3+5
+5.5Round 2🇳🇴 NORWAY95♠♦9=+0
+5.3Round 15🇬🇷 GREECE85♣♥10-1+11
+5.3Round 16🇩🇪 GERMANY125♣x♥A-1+5
+5.2Round 13🇹🇷 TURKEY104♥♣6-1+12
+5.2Round 14BOTSWANA22♠♣A+1+6
+5.1Round 2🇳🇴 NORWAY63♦♠7+2+7
+4.9Round 5🇩🇰 DENMARK84♥♦10+3+9
+4.8Round 7🇺🇸 USA112♠x♦K-1+7
+4.8Round 16🇩🇪 GERMANY113NT♥4+3-10
+4.8Round 17🇵🇱 POLAND24♠♣3=+12
+4.6Round 3🇹🇼 CHINESE TAIPEI55♠♥A-2+0
+4.6Round 5🇩🇰 DENMARK43♠♥A=+2
+4.6Round 13🇹🇷 TURKEY63♣♦J-1+4
+4.5Round 13🇹🇷 TURKEY74♠♠A-2+3
+4.4Round 13🇹🇷 TURKEY13NT♥Q-1+17
+4.4Round 17🇵🇱 POLAND12NT♠4-1+11
+4.3Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND82♦♣4+2+1
+4.2Round 3🇹🇼 CHINESE TAIPEI15♠♥9=+0
+4.2Round 4🇨🇳 CHINA 313NT♥J+1+1
+4.1Round 7🇺🇸 USA71NT♦2-1+6
+4.1Round 12🇸🇪 SWEDEN85♠x♦A+1+6
+4.1Round 14BOTSWANA12NT♦3-1+10
+4.1Round 17🇵🇱 POLAND82NT♠8+1+1
+3.6Round 16🇩🇪 GERMANY74♠♦K+2-13
+3.5Round 14BOTSWANA33NT♦3+1+0
+3.4Round 7🇺🇸 USA92♦♦6+1+0
+3.4Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND53♥♣K=+7
+3.4Round 17🇵🇱 POLAND93♣x♠A-1+6
+3.3Round 3🇹🇼 CHINESE TAIPEI44♠♥A+1+0
+3.2Round 8🇮🇱 ISRAEL64♠♥2-2+6
+3.2Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND63♥♣J-1+4
+3.2Round 17🇵🇱 POLAND102♥♠K+2+10
+3.0Round 5🇩🇰 DENMARK62♦♥K+2+1
+3.0Round 17🇵🇱 POLAND52♥♠Q-1+0
+2.9Round 5🇩🇰 DENMARK92NT♦J=+0
+2.9Round 8🇮🇱 ISRAEL93♠♦J-1+8
+2.8Round 4🇨🇳 CHINA 332♠♣2+2+6
+2.7Round 6🇫🇷 FRANCE34♠♦8-2+6
+2.6Round 8🇮🇱 ISRAEL13♠♥10-3+7
+2.5Round 12🇸🇪 SWEDEN106♠♣8=+0
+2.4Round 16🇩🇪 GERMANY103♣♥5=-1
+2.2Round 2🇳🇴 NORWAY12♥♠K+1+0
+2.2Round 9🇨🇳 CHINA 263♥♦7+1+6
+2.2Round 16🇩🇪 GERMANY81NT♥A=+5
+2.1Round 1🇮🇳 INDIA84♠♣6+3+2
+2.1Round 4🇨🇳 CHINA 3124♥♦J+1+0
+2.1Round 8🇮🇱 ISRAEL71♣♦Q-1+0
+2.1Round 15🇬🇷 GREECE112♠♥2=+0
+2.1Round 16🇩🇪 GERMANY96♠♣8+1+11
+1.8Round 15🇬🇷 GREECE23NT♥7=+0
+1.7Round 7🇺🇸 USA61NT♥K=+2
+1.6Round 7🇺🇸 USA45♠♠7=+0
+1.5Round 15🇬🇷 GREECE36♦♠10=+12
+1.4Round 8🇮🇱 ISRAEL101NT♠3+1+0
+1.2Round 1🇮🇳 INDIA53NT♦6+2+1
+1.2Round 2🇳🇴 NORWAY84♥♣2+1+0
+1.2Round 8🇮🇱 ISRAEL53NT♣5+1+0
+1.2Round 9🇨🇳 CHINA 224♥♣7+1+1
+1.1Round 4🇨🇳 CHINA 353♥♠10+1+4
+1.1Round 12🇸🇪 SWEDEN94♥♦A+1+0
+1.1Round 15🇬🇷 GREECE52♦♠7+2+0
+0.9Round 6🇫🇷 FRANCE83NT♥K+1+0
+0.9Round 9🇨🇳 CHINA 254♠♥K+2+13
+0.9Round 13🇹🇷 TURKEY85♠♦4-2+0
+0.8Round 16🇩🇪 GERMANY63♥♠4+2+6
+0.6Round 1🇮🇳 INDIA23♠♥K+1-6
+0.6Round 6🇫🇷 FRANCE22♥♠J=+0
+0.4Round 3🇹🇼 CHINESE TAIPEI112NT♠7=+1
+0.4Round 4🇨🇳 CHINA 394♠♠5+2-13
+0.4Round 5🇩🇰 DENMARK52♥♦K+2-7
+0.4Round 12🇸🇪 SWEDEN32♠♥5+1+1
+0.4Round 15🇬🇷 GREECE72♥♣K+1+10
+0.3Round 3🇹🇼 CHINESE TAIPEI24♥♠K=-1
+0.2Round 13🇹🇷 TURKEY32NT♠2+1+1
+0.2Round 14BOTSWANA53♦♥K+1-7
-0.0Round 1🇮🇳 INDIA114♠♦2=-1
-0.0Round 3🇹🇼 CHINESE TAIPEI74♠♣J=-3
-0.1Round 2🇳🇴 NORWAY53♥♣9-1-1
-0.2Round 4🇨🇳 CHINA 322♦♥Q+1+0
-0.2Round 7🇺🇸 USA123♥♦5=-1
-0.2Round 8🇮🇱 ISRAEL112♥♠K-1-3
-0.4Round 2🇳🇴 NORWAY41NT♣6+2+10
-0.4Round 14BOTSWANA42♦♠K=+1
-0.4Round 14BOTSWANA72NT♦Q-1+6
-0.5Round 9🇨🇳 CHINA 284♠♥A+1-1
-0.6Round 3🇹🇼 CHINESE TAIPEI105♣♦A=+0
-0.6Round 7🇺🇸 USA33♣♥A-1+7
-0.6Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND34♥♦6=+0
-0.8Round 1🇮🇳 INDIA44♠♦4=+1
-0.8Round 4🇨🇳 CHINA 383♥♠8=-7
-0.8Round 8🇮🇱 ISRAEL84♥♦5-1-4
-0.8Round 9🇨🇳 CHINA 292♠♦7-1-11
-0.9Round 12🇸🇪 SWEDEN53NT♦10+3-11
-1.0Round 11🇨🇳 CHINA 114♥♠J=-8
-1.1Round 5🇩🇰 DENMARK103♠♥3=+0
-1.1Round 7🇺🇸 USA104♠♥Q-1-6
-1.2Round 16🇩🇪 GERMANY35♦♠10+2+1
-1.3Round 2🇳🇴 NORWAY33NT♥8+2+0
-1.4Round 3🇹🇼 CHINESE TAIPEI124♠♣K-1-5
-1.5Round 7🇺🇸 USA13♠♥K-2+5
-1.5Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND14♥♣A+1+0
-1.5Round 11🇨🇳 CHINA 123♠♥A=+8
-1.6Round 9🇨🇳 CHINA 2124♥♣10-1+2
-1.6Round 11🇨🇳 CHINA 141NT♣Q=-2
-1.6Round 11🇨🇳 CHINA 184♥♦K=+0
-1.6Round 11🇨🇳 CHINA 1124♠♦2+1+0
-1.7Round 12🇸🇪 SWEDEN16♦♣6=+2
-1.7Round 16🇩🇪 GERMANY12♣♦4+3-6
-1.8Round 8🇮🇱 ISRAEL22♥♦8-2-5
-1.8Round 11🇨🇳 CHINA 1111NT♣2+2-2
-1.9Round 2🇳🇴 NORWAY121NT♠4-1-4
-1.9Round 7🇺🇸 USA21NT♥10+1-5
-1.9Round 9🇨🇳 CHINA 2102♠♣K+2-2
-1.9Round 17🇵🇱 POLAND113♥x♣J-1+0
-2.0Round 17🇵🇱 POLAND64♠♦J+1+0
-2.1Round 1🇮🇳 INDIA33NT♦A=+2
-2.1Round 2🇳🇴 NORWAY111NT♠5=-5
-2.1Round 8🇮🇱 ISRAEL123NT♦7=+1
-2.1Round 11🇨🇳 CHINA 161NT♠6-1+0
-2.2Round 8🇮🇱 ISRAEL34♣♦A=+0
-2.2Round 14BOTSWANA122♠♥A+1+1
-2.2Round 15🇬🇷 GREECE122♠♣6-1-10
-2.3Round 3🇹🇼 CHINESE TAIPEI94♥♣2=+0
-2.5Round 3🇹🇼 CHINESE TAIPEI83♠♦J+1+4
-2.6Round 12🇸🇪 SWEDEN23NT♣2+1+0
-2.6Round 16🇩🇪 GERMANY54♠♥A+1-4
-2.7Round 6🇫🇷 FRANCE64♠x♦8-2-5
-2.8Round 5🇩🇰 DENMARK71NT♠2=-5
-2.8Round 11🇨🇳 CHINA 132♠♣2=+0
-2.9Round 6🇫🇷 FRANCE126♦♦2-1-10
-3.1Round 12🇸🇪 SWEDEN65♦x♥A-1+0
-3.2Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND94NT♠4+3-12
-3.2Round 13🇹🇷 TURKEY23NT♠8+2+0
-3.2Round 14BOTSWANA83NT♦2=+2
-3.4Round 11🇨🇳 CHINA 173♣♥A-1+0
-3.6Round 9🇨🇳 CHINA 274♠♥Q=+0
-3.6Round 11🇨🇳 CHINA 1101NT♠2+1-6
-3.9Round 2🇳🇴 NORWAY104♥♠K-1-6
-4.1Round 1🇮🇳 INDIA93NT♣J=+0
-4.1Round 9🇨🇳 CHINA 2114♥♣4+1+0
-4.1Round 15🇬🇷 GREECE64♥♦6+2-13
-4.1Round 15🇬🇷 GREECE101NT♥3+1-6
-4.3Round 5🇩🇰 DENMARK24♥♠8-2+0
-4.3Round 6🇫🇷 FRANCE114♠♦J+1-1
-4.4Round 6🇫🇷 FRANCE103♣♣3+1-10
-4.4Round 7🇺🇸 USA54♥♠Q-1-5
-4.4Round 15🇬🇷 GREECE93NT♠3+3-3
-4.5Round 6🇫🇷 FRANCE93♥♠A+1-8
-4.8Round 15🇬🇷 GREECE44♠♣K+1-4
-5.5Round 7🇺🇸 USA86♠♦K=+11
-5.5Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND114♠x♠8-2-5
-5.5Round 17🇵🇱 POLAND44♥x♦4-3-4
-5.6Round 16🇩🇪 GERMANY43♠♦Q+1-8
-5.8Round 13🇹🇷 TURKEY116♠♣5=+11
-6.0Round 13🇹🇷 TURKEY54♠x♥6-1-6
-6.2Round 6🇫🇷 FRANCE44♠♣9+1+0
-6.4Round 8🇮🇱 ISRAEL43NT♦8=-10
-6.5Round 6🇫🇷 FRANCE53NT♥A-2-11
-6.5Round 12🇸🇪 SWEDEN74♠♣J-2-3
-6.8Round 9🇨🇳 CHINA 243NT♠2=+0
-6.9Round 5🇩🇰 DENMARK113NT♠6=+1
-7.0Round 1🇮🇳 INDIA104♥♣3+1-1
-7.5Round 5🇩🇰 DENMARK125♦x♥3-4-12
-7.9Round 9🇨🇳 CHINA 213NT♥J+1-8
-8.1Round 4🇨🇳 CHINA 3103NT♠K=+0
-8.3Round 13🇹🇷 TURKEY93NT♥2-3-12
-8.5Round 5🇩🇰 DENMARK33NT♥3=+0
-8.5Round 13🇹🇷 TURKEY126♠♣9-2-14
-8.6Round 1🇮🇳 INDIA123NT♥3+2-11
-8.9Round 15🇬🇷 GREECE14♠♦3-1-10
-9.5Round 17🇵🇱 POLAND124♦x♥3-3-8
-9.6Round 11🇨🇳 CHINA 153NT♠2=-10
-10.6Round 13🇹🇷 TURKEY43NT♦K=+1
-11.0Round 17🇵🇱 POLAND76NT♦10-1-13
-11.7Round 10🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND104♠x♥J-2-12
-12.2Round 6🇫🇷 FRANCE74♠♦3=-13
-12.4Round 12🇸🇪 SWEDEN123NT♠10+1-11
-12.9Round 12🇸🇪 SWEDEN117♦♠A-1-14