🇨🇳 ZHANG Yu · CHINA

41rank
+95.1Butler · 224 bds
+0.42per board
±3.9swing
+0.79vs par /bd · #17/128
+0.63adjusted /bd
Butler per round: 21.7 4.4 8.5 -8.1 0.1 0.4 28.8 24 -0.6 23.6 -14.3 0.6 -1.1 7.1by round

vs par split: bidding +0.65 · play +0.16

Strength of schedule: opponents averaged +0.20/bd (a tough draw) → opponent-adjusted +0.63/bd

Card play — on target: opening leads 84.2% #22 of 128 · declarer play 76.4% #55 of 128 · defence 86.0% #57 of 128

Card play by contract type — on target
vs NTvs a suit
Opening leads75.0% (24)90.9% (33)
Declarer play77.8% (18)75.7% (37)
Defence86.8% (38)85.5% (76)

Opening leads by suit led: ♠ 75.0% (12) · ♥ 80.0% (15) · ♦ 89.5% (19) · ♣ 90.9% (11)

vs par by strain: NT +1.72 (74) · a suit +0.35 (149)

vs par by level: part-score +0.93 (83) · game +0.82 (131) · slam -0.67 (9)

By role: declaring +0.67/bd (-1.95 vs par · 110) · defending +0.19/bd (+3.42 vs par · 114)

By vulnerability: vulnerable +1.14/bd (+1.09 vs par · 112) · not vulnerable -0.29/bd (+0.48 vs par · 112)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2H.WangJ.Wilkinson – S.NewtonOpen16+21.7+1.36+1.25
Round 3H.WangC.Draper – F.BrownClosed16+4.4+0.28+1.25
Round 5H.WangP.Liu – L.WuClosed16+8.5+0.53+1.00
Round 6H.WangJ.Moers – C.BistoquetOpen16-8.1-0.51-0.75
Round 8H.WangW.Van Zwol – C.ArnoldsOpen16+0.1+0.01+2.81
Round 9H.WangJ.Meyers – M.Zur-CampanileClosed16+0.4+0.03+0.25
Round 10H.WangA.Houlberg – C.MadsenOpen16+28.8+1.80-0.31
Round 11H.WangH.Ota – A.MiyakuniOpen16+24.0+1.50-1.12
Round 14H.WangF.Cimon – S.FraserClosed16-0.6-0.04+2.81
Round 15H.WangP.Daryanani – M.PachecoOpen16+23.6+1.48+4.19
Round 17H.WangA.Sarniak – C.BaldyszOpen16-14.3-0.89+1.56
Round 18H.WangS.Willard – B.CronierClosed16+0.6+0.04+0.31
Round 20H.WangM.Chavarria – F.PiscitelliOpen16-1.1-0.07-2.50
Round 21H.WangM.Narunsky – J.SwielClosed16+7.1+0.44+0.25

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
+11.2Round 10🇩🇰 DENMARK183NT♦3+2+1
+10.4Round 3🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND125♦x♣9-3+9
+10.4Round 15🇻🇪 VENEZUELA92♠x♥2-2+12
+9.2Round 9🇺🇸 USA166♥♦8-1+13
+8.8Round 3🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND104♥x♣J-2+8
+8.6Round 6🇬🇵 GUADELOUPE174♠♦A=+11
+8.6Round 10🇩🇰 DENMARK313NT♥3-1+11
+7.7Round 5🇹🇼 CHINESE TAIPEI42♣x♠3-2+8
+7.6Round 14🇨🇦 CANADA294♠♥4+1+0
+7.3Round 11🇯🇵 JAPAN14♠♥8=+7
+7.2Round 3🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND91NT♦4-3+5
+7.1Round 6🇬🇵 GUADELOUPE203NT♥Q-2+8
+7.1Round 21🇿🇦 SOUTH AFRICA73NT♦5-1+12
+7.0Round 3🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND44♣♦9+2+8
+7.0Round 9🇺🇸 USA113NT♥6=+7
+7.0Round 15🇻🇪 VENEZUELA155♦♥A=+0
+6.8Round 10🇩🇰 DENMARK173NTx♠Q=+4
+6.3Round 20🇮🇹 ITALY215♠♣A+1+14
+6.3Round 21🇿🇦 SOUTH AFRICA163NT♠9=+6
+6.1Round 5🇹🇼 CHINESE TAIPEI95♥♠A-1+12
+6.0Round 8🇳🇱 NETHERLANDS283NT♥10+2-13
+5.6Round 2🇳🇿 NEW ZEALAND215♦♠K=+3
+5.6Round 21🇿🇦 SOUTH AFRICA151NT♠J+1+1
+5.5Round 5🇹🇼 CHINESE TAIPEI53NT♠8+1+11
+5.5Round 11🇯🇵 JAPAN73NT♠2-3+10
+5.1Round 14🇨🇦 CANADA285♠♥Q=+4
+4.9Round 2🇳🇿 NEW ZEALAND184♥♠8+1-13
+4.9Round 18🇫🇷 FRANCE213NT♦J-1+10
+4.5Round 20🇮🇹 ITALY293NT♠2=-1
+4.4Round 10🇩🇰 DENMARK294♥♠Q-1+6
+4.4Round 15🇻🇪 VENEZUELA44♥♦2-1+7
+4.2Round 15🇻🇪 VENEZUELA52♠♣3+1+0
+4.1Round 11🇯🇵 JAPAN44♥♠6+1+0
+4.1Round 11🇯🇵 JAPAN154♣♦A-1+5
+4.0Round 2🇳🇿 NEW ZEALAND322♥♠4-4+0
+3.9Round 18🇫🇷 FRANCE292♥♠Q-2+3
+3.8Round 6🇬🇵 GUADELOUPE231NT♥8+1+0
+3.8Round 20🇮🇹 ITALY244♥♣4+1-11
+3.7Round 8🇳🇱 NETHERLANDS184♥♦K=+3
+3.7Round 11🇯🇵 JAPAN35♦x♠8-1-6
+3.6Round 17🇵🇱 POLAND133♥♣K=+0
+3.5Round 5🇹🇼 CHINESE TAIPEI101NT♦2-1+5
+3.5Round 8🇳🇱 NETHERLANDS262♠♥4=+6
+3.5Round 18🇫🇷 FRANCE282♥♠7+2+2
+3.5Round 18🇫🇷 FRANCE316♦♠A=-1
+3.4Round 17🇵🇱 POLAND152♠♦3+2+6
+3.3Round 15🇻🇪 VENEZUELA142♥♦3+1+7
+3.3Round 17🇵🇱 POLAND162♥♣A+2+10
+3.2Round 15🇻🇪 VENEZUELA103♥♠4-1+12
+3.2Round 20🇮🇹 ITALY206♣♥2=-13
+3.1Round 2🇳🇿 NEW ZEALAND234♦♦2=+10
+3.1Round 2🇳🇿 NEW ZEALAND273♦♣10-3+2
+3.1Round 2🇳🇿 NEW ZEALAND295♠♥A=-13
+3.0Round 2🇳🇿 NEW ZEALAND243♥♦4=+6
+3.0Round 3🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND115♠♥7-1+10
+3.0Round 11🇯🇵 JAPAN132♦♣3+1+0
+3.0Round 21🇿🇦 SOUTH AFRICA34♥♣Q+1-11
+2.9Round 14🇨🇦 CANADA184♠♥K=+8
+2.7Round 5🇹🇼 CHINESE TAIPEI34♠x♦A-1-6
+2.6Round 20🇮🇹 ITALY284♠♦J+1-13
+2.5Round 11🇯🇵 JAPAN64♠♣K+1+0
+2.5Round 15🇻🇪 VENEZUELA74♠♦8-2+8
+2.5Round 18🇫🇷 FRANCE244♠♣5-2+5
+2.4Round 9🇺🇸 USA123NT♠3-3+6
+2.4Round 18🇫🇷 FRANCE204♠♥6-1+6
+2.3Round 6🇬🇵 GUADELOUPE313♣♠5-1+4
+2.2Round 10🇩🇰 DENMARK253♦♣5=+0
+2.1Round 9🇺🇸 USA134♠♦J=+0
+2.1Round 10🇩🇰 DENMARK283NT♠7+3+1
+2.1Round 15🇻🇪 VENEZUELA33NT♦3=+0
+2.0Round 11🇯🇵 JAPAN123NT♥5=+0
+2.0Round 15🇻🇪 VENEZUELA115♠♦9+2+10
+1.9Round 10🇩🇰 DENMARK233♦♦7+1+0
+1.9Round 21🇿🇦 SOUTH AFRICA25♦♠J=-1
+1.8Round 14🇨🇦 CANADA193NT♦5-2+8
+1.7Round 3🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND81NT♣6=+2
+1.7Round 6🇬🇵 GUADELOUPE213NT♠7=+3
+1.7Round 8🇳🇱 NETHERLANDS273NT♠Q=+0
+1.7Round 8🇳🇱 NETHERLANDS323NT♦3+3+13
+1.7Round 10🇩🇰 DENMARK224♠♦J-1+5
+1.6Round 2🇳🇿 NEW ZEALAND264NT♥8=-1
+1.6Round 2🇳🇿 NEW ZEALAND284♠♠A-1+5
+1.5Round 14🇨🇦 CANADA223NT♥7+2+1
+1.5Round 14🇨🇦 CANADA315♥x♣3-3+0
+1.4Round 9🇺🇸 USA151NT♥3=+5
+1.4Round 17🇵🇱 POLAND24♥♠8=+3
+1.3Round 3🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND152♠x♥5-2-1
+1.3Round 8🇳🇱 NETHERLANDS193NT♠6+2+13
+1.3Round 18🇫🇷 FRANCE172♠♦7+2+6
+1.2Round 9🇺🇸 USA1123NT♥6=+0
+1.2Round 14🇨🇦 CANADA233♠♦6=+12
+1.2Round 21🇿🇦 SOUTH AFRICA53NT♦3=+2
+1.1Round 2🇳🇿 NEW ZEALAND204♥♣5+2+13
+1.0Round 5🇹🇼 CHINESE TAIPEI122♠♥A=-1
+1.0Round 9🇺🇸 USA1141NT♠10=+1
+0.9Round 17🇵🇱 POLAND13NT♦4+2+0
+0.9Round 18🇫🇷 FRANCE304♥♣3-1+5
+0.9Round 18🇫🇷 FRANCE321NT♦J-3-3
+0.9Round 21🇿🇦 SOUTH AFRICA43NT♥2=+0
+0.8Round 5🇹🇼 CHINESE TAIPEI144♥♣Q+2-11
+0.8Round 15🇻🇪 VENEZUELA83♦♥A+1+0
+0.8Round 17🇵🇱 POLAND83NT♥2+1-1
+0.8Round 20🇮🇹 ITALY191NT♥2+1+0
+0.6Round 8🇳🇱 NETHERLANDS232♠♥J-2+9
+0.6Round 9🇺🇸 USA172♥♣Q+1+0
+0.6Round 10🇩🇰 DENMARK212NT♥2+2+6
+0.6Round 10🇩🇰 DENMARK272♥♠8-1+2
+0.6Round 10🇩🇰 DENMARK302♠♦K=+0
+0.6Round 11🇯🇵 JAPAN163NT♦5+2+0
+0.6Round 20🇮🇹 ITALY174♥♠Q=+0
+0.5Round 5🇹🇼 CHINESE TAIPEI153NT♦4=-2
+0.5Round 8🇳🇱 NETHERLANDS221NT♠3+1+10
+0.5Round 14🇨🇦 CANADA203NT♦2+2+12
+0.5Round 14🇨🇦 CANADA324♥♠Q+1+0
+0.4Round 15🇻🇪 VENEZUELA66♠♦4+1+13
+0.4Round 20🇮🇹 ITALY324♥♣2=+0
+0.3Round 6🇬🇵 GUADELOUPE183♠♥3-1-2
+0.3Round 11🇯🇵 JAPAN24♠♣K+1-13
+0.3Round 18🇫🇷 FRANCE254♠♦4+3+2
-0.0Round 2🇳🇿 NEW ZEALAND313NT♥10+2+10
+0.0Round 3🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND64♥♠A=+0
-0.0Round 10🇩🇰 DENMARK204♠♦2-1-13
-0.0Round 17🇵🇱 POLAND62♠♥9-2+9
+0.0Round 18🇫🇷 FRANCE193NT♥7+1+0
-0.1Round 5🇹🇼 CHINESE TAIPEI134♥♦3=+0
-0.1Round 9🇺🇸 USA1162♦♠J=+0
-0.1Round 14🇨🇦 CANADA263♠♦4-2-2
-0.2Round 6🇬🇵 GUADELOUPE303NT♣7+2+0
-0.2Round 8🇳🇱 NETHERLANDS254♠♥4+2+9
-0.3Round 9🇺🇸 USA1111NT♥A=-2
-0.3Round 17🇵🇱 POLAND103NT♦5+1-1
-0.4Round 3🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND23NT♠5+3+10
-0.5Round 5🇹🇼 CHINESE TAIPEI81NTx♦Q-1+0
-0.5Round 8🇳🇱 NETHERLANDS174♥♦3+2+1
-0.5Round 8🇳🇱 NETHERLANDS313NT♦3+1+0
-0.5Round 21🇿🇦 SOUTH AFRICA13Pass-3
-0.6Round 11🇯🇵 JAPAN83♠♥K+2-6
-0.7Round 15🇻🇪 VENEZUELA21NT♥4+2+6
-0.8Round 3🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND75♣♥J+1+13
-0.8Round 6🇬🇵 GUADELOUPE264♥x♣Q-2-4
-0.8Round 10🇩🇰 DENMARK326NT♥Q+1-11
-0.9Round 6🇬🇵 GUADELOUPE222♠♥2+2+1
-0.9Round 11🇯🇵 JAPAN53NT♦4=+1
-0.9Round 11🇯🇵 JAPAN143♠♥10+1-6
-1.0Round 2🇳🇿 NEW ZEALAND254♠♣3=+0
-1.0Round 9🇺🇸 USA1154♥♠10+1-10
-1.0Round 17🇵🇱 POLAND73NT♦3+2-1
-1.0Round 20🇮🇹 ITALY264♦♠A=+0
-1.0Round 20🇮🇹 ITALY272♦♠A=+0
-1.1Round 14🇨🇦 CANADA272♥♠10=+1
-1.2Round 2🇳🇿 NEW ZEALAND225♠x♣5-1+0
-1.2Round 3🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND33♥♠5-2+0
-1.2Round 8🇳🇱 NETHERLANDS294♥♣3=-1
-1.2Round 20🇮🇹 ITALY181NT♠Q+1+0
-1.3Round 5🇹🇼 CHINESE TAIPEI25♥♥6=+11
-1.3Round 8🇳🇱 NETHERLANDS304♥♣K=+1
-1.3Round 21🇿🇦 SOUTH AFRICA83NT♠4=+2
-1.4Round 11🇯🇵 JAPAN104♠♦J-1+3
-1.5Round 6🇬🇵 GUADELOUPE241NT♣A+1+0
-1.5Round 21🇿🇦 SOUTH AFRICA114♦♥K-1-2
-1.6Round 17🇵🇱 POLAND114♠♠3+1-1
-1.7Round 5🇹🇼 CHINESE TAIPEI113♦♠A=+0
-1.7Round 6🇬🇵 GUADELOUPE273♠♦J+1-6
-1.7Round 6🇬🇵 GUADELOUPE292♠♦10+2-1
-1.8Round 2🇳🇿 NEW ZEALAND193NT♥K=+0
-1.8Round 9🇺🇸 USA193NT♥2=+0
-1.8Round 20🇮🇹 ITALY225♠♥Q=-4
-1.8Round 21🇿🇦 SOUTH AFRICA63♥♣2-2+9
-2.0Round 3🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND53NT♥7-1-12
-2.0Round 5🇹🇼 CHINESE TAIPEI13NT♦4+2+11
-2.0Round 14🇨🇦 CANADA241NT♦A-3+0
-2.0Round 14🇨🇦 CANADA301NT♠7+2+6
-2.0Round 21🇿🇦 SOUTH AFRICA12♠♣K-1+1
-2.1Round 5🇹🇼 CHINESE TAIPEI64♠♥J+1-8
-2.1Round 10🇩🇰 DENMARK245♠♣K+1-8
-2.1Round 21🇿🇦 SOUTH AFRICA103NT♦Q=+2
-2.2Round 21🇿🇦 SOUTH AFRICA92♥♣Q+1+0
-2.3Round 21🇿🇦 SOUTH AFRICA126♠♣9=+0
-2.4Round 2🇳🇿 NEW ZEALAND303♣♥A+1-1
-2.4Round 17🇵🇱 POLAND54♠♥3=+0
-2.5Round 10🇩🇰 DENMARK263NT♥10-2-8
-2.5Round 11🇯🇵 JAPAN112♥♣6+2-7
-2.7Round 9🇺🇸 USA144♠♦J+1+0
-2.8Round 11🇯🇵 JAPAN91NT♦3+3-6
-3.0Round 2🇳🇿 NEW ZEALAND173♥♦4=-1
-3.0Round 9🇺🇸 USA181NT♠Q+1-6
-3.0Round 17🇵🇱 POLAND143NT♦9+1+0
-3.1Round 6🇬🇵 GUADELOUPE323♠♣3-2-5
-3.1Round 18🇫🇷 FRANCE274♠♥9-1-6
-3.3Round 20🇮🇹 ITALY303NT♥J-2-6
-3.3Round 20🇮🇹 ITALY313♠♦K=+0
-3.4Round 18🇫🇷 FRANCE225♥♠2+1+3
-3.7Round 8🇳🇱 NETHERLANDS215♣♠K=+0
-3.8Round 15🇻🇪 VENEZUELA163NT♥5+2-2
-3.8Round 17🇵🇱 POLAND44♠x♥K-1+0
-3.9Round 5🇹🇼 CHINESE TAIPEI73♦♣J=+0
-3.9Round 15🇻🇪 VENEZUELA13♠♣7=-6
-3.9Round 15🇻🇪 VENEZUELA124♠♣4+1+0
-4.0Round 14🇨🇦 CANADA212♠♦6-1-5
-4.1Round 17🇵🇱 POLAND95♦♥A=+13
-4.3Round 20🇮🇹 ITALY233NT♥5+2-1
-4.4Round 8🇳🇱 NETHERLANDS244♥♣A=-3
-4.4Round 15🇻🇪 VENEZUELA134♦♥Q=+0
-4.7Round 3🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND13♥♦10=-6
-5.0Round 18🇫🇷 FRANCE184♠♦2=-7
-5.1Round 17🇵🇱 POLAND124♥♦2-1-12
-5.2Round 21🇿🇦 SOUTH AFRICA144♠♥4-1-14
-5.5Round 18🇫🇷 FRANCE262♣x♥Q=-8
-5.7Round 14🇨🇦 CANADA254♠♠4+1-11
-6.0Round 6🇬🇵 GUADELOUPE283NT♠4-1-12
-6.4Round 17🇵🇱 POLAND34♠♥9=+0
-6.5Round 10🇩🇰 DENMARK193NT♣4+2-1
-6.5Round 18🇫🇷 FRANCE232♠♦K-1-12
-6.8Round 3🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND162♦♥4+4-13
-7.0Round 9🇺🇸 USA1104♥♣10+1+0
-7.1Round 8🇳🇱 NETHERLANDS203♠♠8-2-3
-7.2Round 6🇬🇵 GUADELOUPE196♠x♦A-4-4
-7.4Round 20🇮🇹 ITALY253NT♥3-1-5
-7.7Round 5🇹🇼 CHINESE TAIPEI166♥♣J-1-14
-8.1Round 3🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND144♠♥3=-7
-8.3Round 14🇨🇦 CANADA176♥♦2=+11
-8.6Round 9🇺🇸 USA1132♥♣4+1-10
-8.8Round 6🇬🇵 GUADELOUPE255♦x♠2-3-5
-11.0Round 3🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND135♠x♦K+1-6