🇨🇳 ZHANG Yu · CHINA

103rank
-52.6Butler · 224 bds
-0.23per board
±4.6swing
-0.34vs par /bd · #98/138
-0.32adjusted /bd
Butler per round: -9.2 -19.8 8.5 6.3 -16.9 3.1 -10.8 -3.5 -48.1 20.7 32.3 -9.6 -9.7 4.1by round

vs par split: bidding -0.55 · play +0.21

Strength of schedule: opponents averaged -0.09/bd (an easy draw) → opponent-adjusted -0.32/bd

Card play — on target: opening leads 83.0% #49 of 138 · declarer play 69.8% #108 of 138 · defence 86.1% #65 of 138

Card play by contract type — on target
vs NTvs a suit
Opening leads85.7% (14)82.1% (39)
Declarer play71.4% (21)68.8% (32)
Defence82.1% (28)87.5% (80)

Opening leads by suit led: ♠ 66.7% (15) · ♥ 100.0% (18) · ♦ 90.0% (10) · ♣ 70.0% (10)

vs par by strain: NT -0.71 (72) · a suit -0.17 (152)

vs par by level: part-score -0.10 (72) · game -0.60 (132) · slam +0.45 (20)

By role: declaring -0.70/bd (-3.10 vs par · 116) · defending +0.27/bd (+2.62 vs par · 108)

By vulnerability: vulnerable -0.39/bd (-0.41 vs par · 112) · not vulnerable -0.08/bd (-0.28 vs par · 112)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1J.DaiL.Ferrero – E.Juchimowicz PuglieseClosed16-9.2-0.57+1.19
Round 3J.DaiC.Krefeld – J.HammelevOpen16-19.8-1.24-2.00
Round 4J.DaiM.Poplilov – I.LiranClosed16+8.5+0.53+1.06
Round 6J.DaiC.He – J.LuoOpen16+6.3+0.39-2.38
Round 8J.DaiA.Gandoglia – I.BaroniOpen16-16.9-1.06-2.19
Round 9J.DaiB.Cronier – P.CronierClosed16+3.1+0.19+1.56
Round 10J.DaiD.Rosenberg – M.RosenbergClosed16-10.8-0.68-0.56
Round 12J.DaiM.Ben Abdallah – N.LandaClosed16-3.5-0.22+0.88
Round 14J.DaiD.Wiltshire – S.AshtonOpen16-48.1-3.01-3.12
Round 15J.DaiN.Rechtman – P.CumminsOpen16+20.7+1.29+2.12
Round 17J.DaiN.Sebti – A.TaziClosed16+32.3+2.02-0.06
Round 18J.DaiP.Tan – S.TanClosed16-9.6-0.60-0.56
Round 19J.DaiR.Khandelwal – H.KhandelwalClosed16-9.7-0.61+0.31
Round 23J.DaiT.Wu – H.SoOpen16+4.1+0.26-1.06

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
+10.4Round 12🇹🇳 TUNISIA174♠♥J-1+11
+10.0Round 17🇲🇦 MOROCCO56NT♦Q=+0
+10.0Round 23🇹🇼 CHINESE TAIPEI254♥♣A+1+13
+9.1Round 1🇦🇷 ARGENTINA14♠♣7-2+11
+8.5Round 23🇹🇼 CHINESE TAIPEI264♥♦K-1+7
+8.2Round 15🇧🇧 BARBADOS35♦x♣5-2+12
+8.1Round 4🇮🇱 ISRAEL306♠♣5-1+11
+8.1Round 23🇹🇼 CHINESE TAIPEI184♥♣K=-1
+7.9Round 6🇨🇦 CANADA312♠x♦J-3-3
+7.9Round 15🇧🇧 BARBADOS123♠♣K+1+7
+7.9Round 17🇲🇦 MOROCCO44♠♣3-1+12
+7.8Round 10🇺🇸 USA2263NT♠4=+10
+7.7Round 6🇨🇦 CANADA186NT♠2-2+11
+7.7Round 17🇲🇦 MOROCCO116♣♠10-1+11
+7.6Round 3🇩🇰 DENMARK86♣♦A=-2
+7.2Round 14🇦🇺 AUSTRALIA224♠♣A-1+5
+7.2Round 19🇮🇳 INDIA43♠♦5=+0
+6.9Round 17🇲🇦 MOROCCO103NT♥A-3+9
+6.7Round 15🇧🇧 BARBADOS93NT♥4-2+11
+6.1Round 4🇮🇱 ISRAEL263NT♦3+1+0
+6.1Round 4🇮🇱 ISRAEL322♠x♥J-2+14
+5.8Round 12🇹🇳 TUNISIA283NT♥4+1+10
+5.6Round 9🇫🇷 FRANCE124♥x♠5-3+12
+5.5Round 10🇺🇸 USA2274♠x♣K-2+0
+5.5Round 19🇮🇳 INDIA33NT♠7-3+11
+5.4Round 1🇦🇷 ARGENTINA24♠♠A-1+10
+5.2Round 8🇮🇹 ITALY293NT♥5-1+6
+4.9Round 15🇧🇧 BARBADOS104♥♦A=+0
+4.8Round 23🇹🇼 CHINESE TAIPEI223NT♥Q-2+11
+4.7Round 9🇫🇷 FRANCE24♠♣2=+0
+4.6Round 6🇨🇦 CANADA302♦♥3+3+7
+4.5Round 10🇺🇸 USA2204♥♠K+1+13
+4.5Round 15🇧🇧 BARBADOS73NT♥A=+0
+4.4Round 1🇦🇷 ARGENTINA55♦♠K=+11
+4.4Round 23🇹🇼 CHINESE TAIPEI286♣♦Q-1+12
+4.3Round 8🇮🇹 ITALY233NT♦3+1+0
+4.3Round 17🇲🇦 MOROCCO23NT♥3+3+13
+4.2Round 8🇮🇹 ITALY192NT♥8-1+4
+4.1Round 9🇫🇷 FRANCE84♠♣A=+3
+3.8Round 6🇨🇦 CANADA224♠♥5-1+13
+3.7Round 4🇮🇱 ISRAEL254♠♦K=+0
+3.7Round 15🇧🇧 BARBADOS12♥♣3-1+4
+3.7Round 19🇮🇳 INDIA163NT♠Q=+7
+3.6Round 9🇫🇷 FRANCE44♠♥8-1+6
+3.5Round 3🇩🇰 DENMARK93NT♣5=+13
+3.4Round 18🇸🇬 SINGAPORE303♠♣3-1+4
+3.3Round 9🇫🇷 FRANCE14♠x♠3-1+5
+3.3Round 15🇧🇧 BARBADOS163♠♥8-1+6
+3.3Round 18🇸🇬 SINGAPORE323♣♥9-3+11
+3.1Round 1🇦🇷 ARGENTINA32♠♥A-2+7
+3.0Round 15🇧🇧 BARBADOS44♥♦K-1+12
+3.0Round 15🇧🇧 BARBADOS84♠♣2-1+5
+3.0Round 17🇲🇦 MOROCCO151NT♣J-4-2
+3.0Round 19🇮🇳 INDIA13♠♣7+1+6
+2.9Round 8🇮🇹 ITALY253♥♦2-1-2
+2.8Round 3🇩🇰 DENMARK133♠♦K-2+3
+2.8Round 4🇮🇱 ISRAEL176♣x♠6-1-1
+2.6Round 12🇹🇳 TUNISIA261♥♥7+1+6
+2.4Round 12🇹🇳 TUNISIA183NT♠A-2+0
+2.4Round 17🇲🇦 MOROCCO144♥♦K-3+2
+2.3Round 9🇫🇷 FRANCE73♣♦6+1+1
+2.2Round 18🇸🇬 SINGAPORE174♥♠A-1+5
+2.1Round 9🇫🇷 FRANCE103♣♠J+2+1
+2.1Round 18🇸🇬 SINGAPORE283NT♠6+1-1
+2.0Round 4🇮🇱 ISRAEL183♠♥9-3+1
+2.0Round 9🇫🇷 FRANCE114NT♠2+1+0
+1.9Round 19🇮🇳 INDIA145♥♠6=+4
+1.8Round 8🇮🇹 ITALY181NT♥5=-1
+1.7Round 1🇦🇷 ARGENTINA41NT♠4+1+0
+1.7Round 12🇹🇳 TUNISIA252♦♠J+2+0
+1.7Round 17🇲🇦 MOROCCO83♦♥J-3+0
+1.5Round 6🇨🇦 CANADA243NT♠A+2+1
+1.5Round 18🇸🇬 SINGAPORE182♥♠A=-1
+1.5Round 19🇮🇳 INDIA94♥♦6=+0
+1.4Round 9🇫🇷 FRANCE163NT♠5+1+0
+1.4Round 12🇹🇳 TUNISIA194♠♥K+1+1
+1.4Round 23🇹🇼 CHINESE TAIPEI203♠♦10=+0
+1.3Round 3🇩🇰 DENMARK62♦♣7=-2
+1.3Round 3🇩🇰 DENMARK141NT♠Q=-2
+1.3Round 6🇨🇦 CANADA265♦♠J+1+1
+1.3Round 17🇲🇦 MOROCCO135♣♣5-1-6
+1.2Round 8🇮🇹 ITALY282♥♣4+1+0
+1.2Round 10🇺🇸 USA2222♠♥A+1+1
+1.1Round 19🇮🇳 INDIA52♥♠A=+6
+1.0Round 4🇮🇱 ISRAEL312♥♦9=-1
+1.0Round 15🇧🇧 BARBADOS24♠♥7=+1
+1.0Round 17🇲🇦 MOROCCO92♦♥7+3+1
+0.9Round 6🇨🇦 CANADA274♥♠K+1+0
+0.9Round 14🇦🇺 AUSTRALIA325♠♣A=+0
+0.8Round 10🇺🇸 USA2251NT♦3=+0
+0.8Round 10🇺🇸 USA2284♥♣6-1-2
+0.8Round 18🇸🇬 SINGAPORE251NT♥10=+5
+0.7Round 19🇮🇳 INDIA104♠♦K=+1
+0.6Round 3🇩🇰 DENMARK14♠♠6+1+0
+0.6Round 18🇸🇬 SINGAPORE313NT♥J+1+0
+0.5Round 12🇹🇳 TUNISIA213NT♦9=+2
+0.5Round 14🇦🇺 AUSTRALIA202♣♣5=+1
+0.3Round 6🇨🇦 CANADA173NT♣J+1-1
+0.3Round 19🇮🇳 INDIA84♠♦10=+1
+0.3Round 19🇮🇳 INDIA133♣♠K=+0
+0.2Round 1🇦🇷 ARGENTINA86♥♦8+1+11
+0.2Round 1🇦🇷 ARGENTINA152♠♥5-1-2
+0.2Round 8🇮🇹 ITALY214♠x♠7-1-6
+0.2Round 8🇮🇹 ITALY271NT♣10-2-1
+0.2Round 9🇫🇷 FRANCE91NT♠7+1+0
+0.2Round 10🇺🇸 USA2212♥♣8=+0
+0.2Round 17🇲🇦 MOROCCO66♥♠J+1-13
+0.2Round 23🇹🇼 CHINESE TAIPEI193NT♠4+2+0
+0.1Round 8🇮🇹 ITALY222♥♠4+1+0
+0.1Round 14🇦🇺 AUSTRALIA184♥♠3-2+5
+0.1Round 23🇹🇼 CHINESE TAIPEI233♦♥K-1-1
+0.0Round 1🇦🇷 ARGENTINA103NT♦8+1+0
-0.0Round 4🇮🇱 ISRAEL271NT♠10=+1
+0.0Round 10🇺🇸 USA2234♥♦J=-3
-0.0Round 17🇲🇦 MOROCCO124♠♣3+1+0
-0.0Round 19🇮🇳 INDIA64♠♦A+1+0
-0.1Round 3🇩🇰 DENMARK124♥♦J=+0
-0.1Round 4🇮🇱 ISRAEL243NT♦A+2+0
-0.2Round 6🇨🇦 CANADA284♥♠6=+0
-0.2Round 17🇲🇦 MOROCCO12♠♥A=+0
-0.4Round 1🇦🇷 ARGENTINA163NT♣5+2+12
-0.4Round 10🇺🇸 USA2173NT♠8+1+0
-0.4Round 12🇹🇳 TUNISIA273NT♣4=+0
-0.4Round 18🇸🇬 SINGAPORE204♠♥A+1+0
-0.4Round 23🇹🇼 CHINESE TAIPEI172♠♦2-3+0
-0.7Round 6🇨🇦 CANADA193NT♣J+2-10
-0.7Round 6🇨🇦 CANADA323NT♣3+1-11
-0.7Round 10🇺🇸 USA2242♥♣10+1-1
-0.7Round 18🇸🇬 SINGAPORE242NT♠6-1-2
-0.8Round 6🇨🇦 CANADA203♦♠9+1-10
-0.8Round 23🇹🇼 CHINESE TAIPEI303NT♣7+1-1
-1.0Round 3🇩🇰 DENMARK56♣♥2+1+11
-1.0Round 14🇦🇺 AUSTRALIA213♦♠Q=+0
-1.1Round 6🇨🇦 CANADA292♥♠5+1-1
-1.1Round 15🇧🇧 BARBADOS113NT♠7-1-5
-1.1Round 18🇸🇬 SINGAPORE213NT♠5+2+0
-1.2Round 4🇮🇱 ISRAEL293♠x♦8-1+8
-1.2Round 17🇲🇦 MOROCCO31NT♥3=-6
-1.4Round 9🇫🇷 FRANCE34♥♣K-2+3
-1.4Round 14🇦🇺 AUSTRALIA313♠♥A=+0
-1.5Round 12🇹🇳 TUNISIA204♠x♣A-2+4
-1.5Round 14🇦🇺 AUSTRALIA255♦♥Q+1-11
-1.6Round 3🇩🇰 DENMARK113NT♠10=+0
-1.7Round 3🇩🇰 DENMARK104♠♦3-1-6
-1.8Round 14🇦🇺 AUSTRALIA291NT♥7+1+0
-1.9Round 8🇮🇹 ITALY312♦♠K+2-1
-1.9Round 18🇸🇬 SINGAPORE231NT♠4-1-5
-2.1Round 1🇦🇷 ARGENTINA133NT♠3-2-7
-2.1Round 4🇮🇱 ISRAEL224♥♣8-1-5
-2.2Round 6🇨🇦 CANADA253NT♣4-2-5
-2.2Round 12🇹🇳 TUNISIA233♠♦J+1+10
-2.3Round 4🇮🇱 ISRAEL233NT♠Q-2-8
-2.3Round 8🇮🇹 ITALY206♠♦A=+0
-2.3Round 12🇹🇳 TUNISIA303NT♣7-3-2
-2.3Round 18🇸🇬 SINGAPORE273NT♠4-1-10
-2.4Round 23🇹🇼 CHINESE TAIPEI314♥♠5+1-11
-2.5Round 3🇩🇰 DENMARK33♣♦4-1-5
-2.6Round 1🇦🇷 ARGENTINA92NT♠2-2-6
-2.6Round 4🇮🇱 ISRAEL194♥♥9+1+0
-2.6Round 9🇫🇷 FRANCE62NT♠6=+0
-2.7Round 1🇦🇷 ARGENTINA75♣x♠7-1+0
-2.7Round 18🇸🇬 SINGAPORE193NT♣A+2-2
-2.7Round 23🇹🇼 CHINESE TAIPEI215♣x♠6-1-6
-2.9Round 14🇦🇺 AUSTRALIA284♥♠K-1-6
-2.9Round 15🇧🇧 BARBADOS143♠♠4=+0
-3.0Round 3🇩🇰 DENMARK22♠♥J+2-8
-3.0Round 9🇫🇷 FRANCE143NT♣10-2-6
-3.0Round 15🇧🇧 BARBADOS53NT♥6+2+0
-3.1Round 17🇲🇦 MOROCCO74♠x♦6-2-8
-3.2Round 9🇫🇷 FRANCE154♥♠K=+0
-3.3Round 10🇺🇸 USA2313NT♥4-1-5
-3.5Round 14🇦🇺 AUSTRALIA304♥♣4+2+1
-3.6Round 19🇮🇳 INDIA74♠♥A+2-13
-3.7Round 10🇺🇸 USA2324♠♥K-1-10
-3.7Round 12🇹🇳 TUNISIA325♦♠8-1-10
-3.7Round 18🇸🇬 SINGAPORE223NT♦J-2-13
-3.8Round 4🇮🇱 ISRAEL212♣♦2=+1
-3.8Round 4🇮🇱 ISRAEL286♦♥4=+2
-3.9Round 1🇦🇷 ARGENTINA123NT♣6-1-6
-3.9Round 8🇮🇹 ITALY245♥x♣A-3-2
-4.0Round 3🇩🇰 DENMARK163NT♥Q+1-4
-4.0Round 19🇮🇳 INDIA26♣♠2=+0
-4.1Round 15🇧🇧 BARBADOS64♥♠Q=+1
-4.3Round 10🇺🇸 USA2186♣♠10=+2
-4.3Round 23🇹🇼 CHINESE TAIPEI294♠♦9+1-13
-4.4Round 12🇹🇳 TUNISIA244♥♣8-1-5
-4.4Round 14🇦🇺 AUSTRALIA272♣♠2+2-1
-4.5Round 12🇹🇳 TUNISIA224♥♠8-3-7
-4.6Round 12🇹🇳 TUNISIA295♣x♠4=-6
-4.6Round 14🇦🇺 AUSTRALIA192♦♣Q+3-7
-4.7Round 12🇹🇳 TUNISIA314♠♦10=+0
-4.9Round 23🇹🇼 CHINESE TAIPEI242♠♥A+3-7
-5.2Round 14🇦🇺 AUSTRALIA234♥♠J=+0
-5.2Round 18🇸🇬 SINGAPORE292♠♥6+2+10
-5.3Round 8🇮🇹 ITALY304♠♥A-2-5
-5.3Round 9🇫🇷 FRANCE133NT♥Q+1+0
-5.4Round 4🇮🇱 ISRAEL203NT♦Q-1-6
-5.4Round 8🇮🇹 ITALY323NT♥9-1-12
-5.4Round 10🇺🇸 USA2294♠x♥K-3-4
-5.5Round 15🇧🇧 BARBADOS153NT♣6-1-5
-5.5Round 18🇸🇬 SINGAPORE263♥♠3+1-10
-5.8Round 3🇩🇰 DENMARK44♠♦A-1-6
-5.8Round 19🇮🇳 INDIA153♦♥A=-6
-6.3Round 8🇮🇹 ITALY176♣♠6=-3
-6.4Round 10🇺🇸 USA2306♠♣10=+0
-6.4Round 23🇹🇼 CHINESE TAIPEI275♥♣4-2-11
-6.5Round 1🇦🇷 ARGENTINA114♥♦10-1-10
-6.7Round 1🇦🇷 ARGENTINA65♣♦A=-7
-6.7Round 6🇨🇦 CANADA233NT♦Q-2-13
-7.4Round 10🇺🇸 USA2193NT♦5=-10
-8.2Round 3🇩🇰 DENMARK154♠♣Q-3-10
-8.4Round 1🇦🇷 ARGENTINA143NT♦K-1-5
-8.6Round 14🇦🇺 AUSTRALIA173♦♠2-1-11
-8.9Round 15🇧🇧 BARBADOS134♣♠5-1-15
-9.0Round 3🇩🇰 DENMARK76♠♥2-3-14
-9.3Round 6🇨🇦 CANADA216♠x♥5-1-17
-9.6Round 17🇲🇦 MOROCCO163NT♥10-1-14
-10.6Round 14🇦🇺 AUSTRALIA244♠x♠A-3-13
-10.7Round 9🇫🇷 FRANCE57♥♠2=+0
-10.7Round 19🇮🇳 INDIA115♥x♦K=-11
-10.8Round 19🇮🇳 INDIA123NT♠Q+1-1
-11.3Round 14🇦🇺 AUSTRALIA263♥x♥7=-13
-11.5Round 23🇹🇼 CHINESE TAIPEI325♥x♠K-3-9
-11.9Round 8🇮🇹 ITALY266♥♣2-1-12