🇨🇦 ZHU Xiangchen · CANADA

104rank
-116.1Butler · 252 bds
-0.46per board
±4.8swing
-0.58vs par /bd · #102/115
-0.38adjusted /bd
Butler per round: 25.2 7.4 -19.2 -30.3 -9.3 9.2 -14.8 -6.7 -0.1 22.2 -2.7 -17.9 -44.1 14.9 -28.1 -8.7 -9.4 -3.7by round

vs par split: bidding -0.32 · play -0.27

Strength of schedule: opponents averaged +0.08/bd (a tough draw) → opponent-adjusted -0.38/bd

Card play — on target: opening leads 79.7% #37 of 115 · declarer play 69.4% #87 of 115 · defence 78.7% #102 of 115

Card play by contract type — on target
vs NTvs a suit
Opening leads66.7% (21)84.9% (53)
Declarer play76.5% (17)66.7% (45)
Defence76.3% (38)79.6% (103)

Opening leads by suit led: ♠ 87.5% (24) · ♥ 90.9% (22) · ♦ 53.8% (13) · ♣ 73.3% (15)

vs par by strain: NT -0.41 (70) · a suit -0.66 (179)

vs par by level: part-score -0.38 (92) · game -0.39 (139) · slam -3.22 (18)

By role: declaring -0.84/bd (-3.64 vs par · 109) · defending -0.17/bd (+1.76 vs par · 143)

By vulnerability: vulnerable -0.01/bd (-0.16 vs par · 126) · not vulnerable -0.92/bd (-0.99 vs par · 126)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1K.JiangB.Johnston – N.MitchellOpen14+25.2+1.80+1.50
Round 2K.JiangM.Satriawan – H.FebriyantoOpen14+7.4+0.53-0.36
Round 3K.JiangY.Li – K.LinOpen14-19.2-1.37-3.14
Round 4K.JiangG.Lafont – C.LaloubeyreClosed14-30.3-2.16-3.14
Round 5K.JiangM.Gronkvist – I.GronkvistClosed14-9.3-0.66-1.29
Round 6K.JiangJ.Ong – R.ChanOpen14+9.2+0.66+2.50
Round 7K.JiangY.Yin – S.AmerClosed14-14.8-1.06-1.86
Round 9K.JiangA.Spooner – T.LibmanOpen14-6.7-0.48-0.71
Round 10K.JiangS.Gu – B.MiaoClosed14-0.1-0.01+1.57
Round 11K.JiangT.Sprinkhuizen – G.Mendes De LeonClosed14+22.2+1.59+2.36
Round 12K.JiangA.Majcher – P.MarcinowskiOpen14-2.7-0.19-3.93
Round 13K.JiangB.Norton – S.NattClosed14-17.9-1.28-1.43
Round 15K.JiangB.Kristensen – K.RosenbergOpen14-44.1-3.15-2.57
Round 17K.JiangD.Ramirez – G.GuridiOpen14+14.9+1.06+3.00
Round 18K.JiangJ.Cuervo Lopera – F.Von BrudersdorffClosed14-28.1-2.01-4.57
Round 19S.MacdonaldA.Asulin – H.LeviClosed14-8.7-0.62+1.86
Round 20K.JiangO.Tshupelo – C.PelaeloOpen14-9.4-0.67-0.71
Round 21K.JiangK.Ashraf – A.NaserOpen14-3.7-0.26+0.57

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
+11.0Round 21🇪🇬 EGYPT133♣x♥3=+13
+10.9Round 1🇳🇿 NEW ZEALAND76♣♠3-1+13
+9.9Round 17🇨🇱 CHILE105♥x♠Q-4+10
+9.2Round 12🇵🇱 POLAND104♥♠A=+1
+9.1Round 11🇳🇱 NETHERLANDS132♠♥J+3+10
+8.2Round 9🇦🇺 AUSTRALIA96NT♠4+1+1
+7.8Round 5🇸🇪 SWEDEN24♠x♦4-2+12
+7.6Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND143NT♠5-1+10
+7.4Round 2🇮🇩 INDONESIA114♥x♠5-2+5
+7.4Round 11🇳🇱 NETHERLANDS124♦♠A=+1
+7.3Round 17🇨🇱 CHILE61NT♥Q+1+0
+7.2Round 1🇳🇿 NEW ZEALAND63NT♥Q+2+2
+7.1Round 2🇮🇩 INDONESIA74♠♣7=+0
+7.0Round 1🇳🇿 NEW ZEALAND102♥♣6+3+9
+6.9Round 6🇸🇬 SINGAPORE134♠♦4-3+9
+6.9Round 17🇨🇱 CHILE75♦x♠Q-1+8
+6.8Round 3🇹🇼 CHINESE TAIPEI66♦♥A+1-13
+6.6Round 1🇳🇿 NEW ZEALAND95♦♣6-2+11
+6.3Round 3🇹🇼 CHINESE TAIPEI45♥x♠7-3+4
+6.3Round 11🇳🇱 NETHERLANDS64♠x♦7=+9
+6.3Round 15🇺🇸 USA 1103♥♠Q+1+10
+6.2Round 6🇸🇬 SINGAPORE143NT♠3-2+11
+6.1Round 20BOTSWANA93♠♦A=+0
+5.4Round 12🇵🇱 POLAND54♠x♥2-1+6
+5.2Round 5🇸🇪 SWEDEN144♥x♠K-2+10
+5.0Round 17🇨🇱 CHILE131NTx♠3+1+11
+4.8Round 1🇳🇿 NEW ZEALAND125♦♠4-1+6
+4.8Round 7🇺🇸 USA 222NT♣4+1+6
+4.8Round 20BOTSWANA104♠♥10+1+2
+4.8Round 21🇪🇬 EGYPT94♥♦Q+2+17
+4.7Round 6🇸🇬 SINGAPORE14♠♥J-1+10
+4.5Round 4🇫🇷 FRANCE23♣♥A-1+6
+4.5Round 6🇸🇬 SINGAPORE93♥♣4+1+8
+4.4Round 9🇦🇺 AUSTRALIA135♣♦10-2+8
+4.4Round 11🇳🇱 NETHERLANDS32♣♦6=+5
+4.3Round 15🇺🇸 USA 1135♦♣J=-2
+4.2Round 10🇨🇳 CHINA15♦x♣3-1+0
+4.2Round 10🇨🇳 CHINA94♦♥K-1+5
+4.1Round 5🇸🇪 SWEDEN113NT♠4-1+10
+4.0Round 2🇮🇩 INDONESIA12♦♠7-3+0
+4.0Round 11🇳🇱 NETHERLANDS53NT♦9+3+11
+4.0Round 11🇳🇱 NETHERLANDS84♠♣Q+2+1
+3.9Round 7🇺🇸 USA 263♥♠A-3+4
+3.8Round 6🇸🇬 SINGAPORE35♥x♠8-1+2
+3.8Round 10🇨🇳 CHINA23NT♠J-1+12
+3.7Round 3🇹🇼 CHINESE TAIPEI14♠♥9=-1
+3.7Round 19🇮🇱 ISRAEL33NT♠4=+7
+3.3Round 19🇮🇱 ISRAEL64♥♦2-1+6
+3.2Round 1🇳🇿 NEW ZEALAND84♥x♦7-3+2
+3.2Round 19🇮🇱 ISRAEL14NT♣2=-11
+3.2Round 21🇪🇬 EGYPT41NTx♠K-1-9
+3.2Round 21🇪🇬 EGYPT124♥♣9-1+5
+2.9Round 2🇮🇩 INDONESIA94♠♦9+1+0
+2.7Round 20BOTSWANA112NT♦6-2+5
+2.6Round 4🇫🇷 FRANCE83♥♣7-3+1
+2.6Round 6🇸🇬 SINGAPORE52NT♥A+3+6
+2.6Round 6🇸🇬 SINGAPORE114♠♦J+1+1
+2.6Round 17🇨🇱 CHILE53NT♣5-2+12
+2.6Round 21🇪🇬 EGYPT82♥♠A-3+6
+2.5Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND62♣♥2=-1
+2.5Round 18🇨🇴 COLOMBIA31NT♥2-2+0
+2.4Round 11🇳🇱 NETHERLANDS74♠♣J-3+5
+2.4Round 20BOTSWANA52♥♦5-1+2
+2.3Round 20BOTSWANA36♦♠4+1+11
+2.1Round 2🇮🇩 INDONESIA132♠♥3-1-1
+2.1Round 7🇺🇸 USA 2123♥♦5=+1
+2.1Round 9🇦🇺 AUSTRALIA83♦♣4=+0
+2.1Round 10🇨🇳 CHINA102♠♣10=+0
+2.1Round 18🇨🇴 COLOMBIA23♠♣2=+0
+2.0Round 12🇵🇱 POLAND116♠♣6+1-11
+1.9Round 2🇮🇩 INDONESIA33NT♦7=+2
+1.9Round 17🇨🇱 CHILE26♥♥6=+0
+1.9Round 19🇮🇱 ISRAEL123NT♣7+4+14
+1.9Round 21🇪🇬 EGYPT64♠♦A+1+1
+1.7Round 5🇸🇪 SWEDEN71♠♦7+1+0
+1.7Round 6🇸🇬 SINGAPORE45♦x♣A-2-4
+1.7Round 19🇮🇱 ISRAEL44♠♦7=+0
+1.7Round 21🇪🇬 EGYPT24♥♣9+3+2
+1.6Round 5🇸🇪 SWEDEN63♦♣A=+0
+1.6Round 5🇸🇪 SWEDEN132♥♣4+1-10
+1.5Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND4Pass+3
+1.5Round 19🇮🇱 ISRAEL21NT♠9=+5
+1.4Round 2🇮🇩 INDONESIA41NT♣4+1+10
+1.3Round 1🇳🇿 NEW ZEALAND32♥♦J+3+6
+1.3Round 1🇳🇿 NEW ZEALAND53NT♥4+1+0
+1.3Round 18🇨🇴 COLOMBIA124♠♣10-1-5
+1.2Round 7🇺🇸 USA 2113NT♠3=+0
+1.2Round 19🇮🇱 ISRAEL134NT♥7+1+13
+1.1Round 10🇨🇳 CHINA6Pass+3
+1.1Round 11🇳🇱 NETHERLANDS16♦♣9=-2
+1.1Round 12🇵🇱 POLAND85♦♣3-1+4
+1.0Round 3🇹🇼 CHINESE TAIPEI141NT♣4=+0
+1.0Round 6🇸🇬 SINGAPORE102♦♠A-2+9
+1.0Round 12🇵🇱 POLAND134NT♥2+1-13
+0.9Round 17🇨🇱 CHILE85♣♠K-1+4
+0.9Round 20BOTSWANA123NT♣2-2-6
+0.8Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND133NT♦5+1-1
+0.8Round 15🇺🇸 USA 1141♠x♠4-3-1
+0.7Round 9🇦🇺 AUSTRALIA42♠♥J-1+0
+0.7Round 20BOTSWANA63NT♥4+3+1
+0.6Round 7🇺🇸 USA 243NT♥J+1+1
+0.5Round 17🇨🇱 CHILE92♠♣5+1+1
+0.5Round 19🇮🇱 ISRAEL114♥♦9=+11
+0.5Round 21🇪🇬 EGYPT33NT♦4+2+0
+0.4Round 10🇨🇳 CHINA73♥♣7-1+5
+0.4Round 12🇵🇱 POLAND23NT♠2+1-1
+0.3Round 5🇸🇪 SWEDEN91NT♠3-2+0
+0.3Round 9🇦🇺 AUSTRALIA143NT♠J+1+0
+0.3Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND33NT♥J=-1
+0.3Round 20BOTSWANA12♠♦10-1-4
+0.3Round 20BOTSWANA43NT♦2+1+0
+0.2Round 7🇺🇸 USA 232♥♦K+1-6
+0.2Round 11🇳🇱 NETHERLANDS23NT♠2+1+0
+0.1Round 2🇮🇩 INDONESIA84♥♦2+2-1
+0.1Round 3🇹🇼 CHINESE TAIPEI124♠♣A-1-5
+0.1Round 19🇮🇱 ISRAEL102♠♥A+1+0
-0.0Round 2🇮🇩 INDONESIA53♦♥7=-1
-0.0Round 2🇮🇩 INDONESIA63NT♠K+1+0
-0.0Round 3🇹🇼 CHINESE TAIPEI24♥♠K+1+0
+0.0Round 3🇹🇼 CHINESE TAIPEI74♠♥6=-3
+0.0Round 7🇺🇸 USA 213♠♥K-1-6
-0.0Round 15🇺🇸 USA 164♠♦J=+1
+0.0Round 18🇨🇴 COLOMBIA86♠♣2+1-11
-0.1Round 5🇸🇪 SWEDEN31NT♥2=+7
-0.1Round 7🇺🇸 USA 27Pass-4
-0.1Round 15🇺🇸 USA 135♦x♠A-2-5
-0.2Round 3🇹🇼 CHINESE TAIPEI103NT♠6+1-1
-0.2Round 4🇫🇷 FRANCE134♣x♥5-2+0
-0.2Round 7🇺🇸 USA 2132♥♦2=+1
-0.2Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND12♥♣2=+7
-0.3Round 1🇳🇿 NEW ZEALAND44♠♥6=+1
-0.3Round 4🇫🇷 FRANCE95♠♣8+2-12
-0.3Round 6🇸🇬 SINGAPORE22♥♠J=+0
-0.3Round 10🇨🇳 CHINA143NT♥4+2+0
-0.4Round 4🇫🇷 FRANCE124♥♠2=-1
-0.4Round 10🇨🇳 CHINA84♥♠10=+0
-0.4Round 12🇵🇱 POLAND31NT♣3+2-1
-0.4Round 17🇨🇱 CHILE142♠♣3-3+6
-0.5Round 17🇨🇱 CHILE123♣x♦A-1-5
-0.5Round 18🇨🇴 COLOMBIA54♥♣A=+0
-0.5Round 21🇪🇬 EGYPT103NT♥4=+1
-0.6Round 10🇨🇳 CHINA41NT♣Q=-2
-0.6Round 20BOTSWANA24♠♣2+3+12
-0.7Round 9🇦🇺 AUSTRALIA101NT♥3=-2
-0.8Round 7🇺🇸 USA 292♦♠4=+0
-0.8Round 7🇺🇸 USA 2104♠♣5-1+6
-0.8Round 9🇦🇺 AUSTRALIA33NT♠J+1+0
-0.8Round 10🇨🇳 CHINA124♠♦5+1+0
-0.8Round 17🇨🇱 CHILE45♦♥J=+2
-0.9Round 12🇵🇱 POLAND144♥♣A+2-11
-0.9Round 18🇨🇴 COLOMBIA136NT♣2=-13
-0.9Round 19🇮🇱 ISRAEL95♣♠Q=-3
-1.0Round 10🇨🇳 CHINA111NT♣8+2-2
-1.0Round 12🇵🇱 POLAND74♠♥8-1+0
-1.1Round 1🇳🇿 NEW ZEALAND21♦♥A+2-7
-1.1Round 4🇫🇷 FRANCE114♥♦3+1-1
-1.1Round 9🇦🇺 AUSTRALIA14♥♣K+1+0
-1.1Round 9🇦🇺 AUSTRALIA62♥♥3=+0
-1.1Round 17🇨🇱 CHILE13NT♠5+2-1
-1.2Round 1🇳🇿 NEW ZEALAND14♥♣3-2-5
-1.2Round 3🇹🇼 CHINESE TAIPEI82♥♣6+1+4
-1.2Round 10🇨🇳 CHINA32NT♠3-1+0
-1.2Round 12🇵🇱 POLAND125♠♥3=+11
-1.3Round 11🇳🇱 NETHERLANDS42♥♣K+1+0
-1.3Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND51NT♠J+1-7
-1.4Round 11🇳🇱 NETHERLANDS95♥♠10=+0
-1.4Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND104♥♠10=+0
-1.5Round 4🇫🇷 FRANCE45♠x♦A-2-7
-1.5Round 4🇫🇷 FRANCE53♥♣10+2+3
-1.5Round 15🇺🇸 USA 143NT♣4+1+1
-1.5Round 18🇨🇴 COLOMBIA112♥♣2+2-6
-1.6Round 6🇸🇬 SINGAPORE84♠♥Q=+0
-1.7Round 2🇮🇩 INDONESIA104♥♠K-1-6
-1.7Round 11🇳🇱 NETHERLANDS106♠♦4+1-1
-1.8Round 9🇦🇺 AUSTRALIA54♥♣K-2+1
-1.8Round 18🇨🇴 COLOMBIA103NT♠K-1-1
-1.9Round 5🇸🇪 SWEDEN53♥♥K+2-6
-1.9Round 15🇺🇸 USA 194♥♣Q=+0
-1.9Round 18🇨🇴 COLOMBIA144♥♣2-2-5
-2.0Round 10🇨🇳 CHINA53♣♣7=+1
-2.0Round 12🇵🇱 POLAND42♦♥J-1-11
-2.0Round 19🇮🇱 ISRAEL51NT♥5+1-1
-2.1Round 5🇸🇪 SWEDEN14♠♣A-1-4
-2.2Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND84♥♣4+1+0
-2.2Round 15🇺🇸 USA 1113♣♥A+2-2
-2.3Round 4🇫🇷 FRANCE103NT♥J=+0
-2.3Round 9🇦🇺 AUSTRALIA114♥x♦2-2-5
-2.3Round 17🇨🇱 CHILE36NT♦10=+11
-2.4Round 9🇦🇺 AUSTRALIA74♠♣J=+0
-2.6Round 11🇳🇱 NETHERLANDS116♦♠A=+2
-2.9Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND22♦♦3+2-1
-2.9Round 18🇨🇴 COLOMBIA12♦♣9+3-1
-3.0Round 21🇪🇬 EGYPT12♠♦10=+1
-3.1Round 19🇮🇱 ISRAEL83♠♣2-1+2
-3.1Round 19🇮🇱 ISRAEL143NT♥A=+0
-3.3Round 2🇮🇩 INDONESIA24♥♥5=+1
-3.3Round 5🇸🇪 SWEDEN44♠♥A=-9
-3.3Round 21🇪🇬 EGYPT114♠♦10+1-1
-3.5Round 20BOTSWANA83NT♠J+2-11
-3.7Round 4🇫🇷 FRANCE34♠♥2+1-1
-3.8Round 1🇳🇿 NEW ZEALAND112♦x♥A-2-4
-3.9Round 4🇫🇷 FRANCE61♦♠2-1-6
-3.9Round 4🇫🇷 FRANCE143♦♦J=-7
-3.9Round 12🇵🇱 POLAND93NT♥9=-7
-4.0Round 5🇸🇪 SWEDEN84♦♥K+1-6
-4.1Round 3🇹🇼 CHINESE TAIPEI55♥x♣A-2-11
-4.2Round 15🇺🇸 USA 153♣♥K-3-6
-4.2Round 21🇪🇬 EGYPT142NT♥10=+0
-4.4Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND122♥♣J-2-5
-4.6Round 20BOTSWANA75♣♠A-2-2
-4.7Round 18🇨🇴 COLOMBIA93♣♠8-1-5
-4.8Round 12🇵🇱 POLAND63NT♦J-2-5
-4.9Round 1🇳🇿 NEW ZEALAND145♦♠A=+0
-4.9Round 6🇸🇬 SINGAPORE64♥♣6+1-4
-4.9Round 18🇨🇴 COLOMBIA44♥♦2=-9
-5.0Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND72♠♥9+1-1
-5.1Round 3🇹🇼 CHINESE TAIPEI36♦♥Q=+11
-5.6Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND93NTx♦10-4-14
-5.8Round 1🇳🇿 NEW ZEALAND133NT♦5-2-13
-5.8Round 15🇺🇸 USA 124♠♥7-1+6
-5.9Round 9🇦🇺 AUSTRALIA124♥♠K=-3
-6.1Round 15🇺🇸 USA 112♣x♥J-3-2
-6.3Round 2🇮🇩 INDONESIA123NT♠10-4-7
-6.3Round 9🇦🇺 AUSTRALIA23NT♠5=-10
-6.5Round 3🇹🇼 CHINESE TAIPEI114♠♦6=-7
-6.6Round 18🇨🇴 COLOMBIA63NT♠4-2-8
-6.9Round 4🇫🇷 FRANCE12♥♠Q-1-8
-7.0Round 6🇸🇬 SINGAPORE124♥♠8+1-1
-7.3Round 3🇹🇼 CHINESE TAIPEI132♠♥5+2-10
-7.4Round 7🇺🇸 USA 254♥♠Q=-7
-7.6Round 12🇵🇱 POLAND13NT♥5-2-17
-7.6Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND115♥x♦4-1-9
-8.1Round 20BOTSWANA143♣x♥A-1-7
-8.2Round 2🇮🇩 INDONESIA144♥♦9=-7
-8.3Round 18🇨🇴 COLOMBIA76♦♦7=+0
-8.6Round 7🇺🇸 USA 2143NT♦4+1-8
-8.6Round 15🇺🇸 USA 1123♥x♦A-3-8
-9.6Round 10🇨🇳 CHINA135♣♠A=+0
-9.6Round 21🇪🇬 EGYPT53♥x♣K-2-15
-9.7Round 7🇺🇸 USA 285♠♦K+1-14
-9.7Round 11🇳🇱 NETHERLANDS144♠♥7=-8
-10.0Round 5🇸🇪 SWEDEN104♠♦5=-10
-10.0Round 15🇺🇸 USA 176♥♣7-1-13
-10.2Round 5🇸🇪 SWEDEN125♦x♥5-4-12
-11.0Round 6🇸🇬 SINGAPORE75♠x♥7-3-12
-11.7Round 4🇫🇷 FRANCE73NT♦K+1-11
-12.0Round 21🇪🇬 EGYPT76♥♠2-1-13
-12.7Round 3🇹🇼 CHINESE TAIPEI92♣x♥9-4-12
-13.1Round 20BOTSWANA136♠♣6+1-13
-15.0Round 17🇨🇱 CHILE116♠x♦7-4-17
-15.1Round 15🇺🇸 USA 183NTxx♠6-3-15
-16.7Round 19🇮🇱 ISRAEL74♣♠5-4-17