YU Zhenhai · HUBEI DONGFENG

188rank
+45.6Butler · 140 bds
+0.33per board
±4.0swing
+0.44vs par /bd · #163/672
+0.35adjusted /bd
Butler per round: -7.5 -14.7 44.5 9.2 0 -18.3 8.1 -6.8 5.7 0 -15.9 13.3 15.6 12.4by round

vs par split: bidding +0.12 · play +0.23

Strength of schedule: opponents averaged +0.03/bd (an average draw) → opponent-adjusted +0.35/bd

Card play — on target: opening leads 82.6% #307 of 671 · declarer play 65.2% #578 of 671 · defence 87.8% #229 of 672

Card play by contract type — on target
vs NTvs a suit
Opening leads·82.6% (23)
Declarer play·65.2% (23)
Defence·87.8% (49)

Opening leads by suit led: ♠ 50.0% (4) · ♥ 100.0% (6) · ♦ 87.5% (8) · ♣ 80.0% (5)

vs par by strain: a suit +0.36 (98)

vs par by level: part-score +1.07 (43) · game +0.00 (50) · slam -2.20 (5)

By role: declaring +0.43/bd (-1.66 vs par · 67) · defending +0.23/bd (+2.37 vs par · 73)

By vulnerability: vulnerable +0.19/bd (+0.51 vs par · 70) · not vulnerable +0.46/bd (+0.37 vs par · 70)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2Z.LiJ.Russyan – A.JezioroOpen10-7.5-0.75+3.60
Round 3Z.LiB.Polii – J.TuejeOpen10-14.7-1.47-3.60
Round 4Z.LiL.Hu – X.XueOpen10+44.5+4.45+4.30
Round 5Z.LiK.Ko – S.HuangClosed10+9.2+0.92+1.80
Round 6Z.LiD.Ackerley – S.SmithClosed10+0.0+0.00+1.00
Round 7Z.LiA.Ivanov – N.BarantievOpen10-18.3-1.83-1.30
Round 8Z.LiX.Li – M.KangOpen10+8.1+0.81+1.30
Round 9Z.LiJ.Gueglio – A.MadalaOpen10-6.8-0.68-0.30
Round 10Z.LiD.Holt – E.SchulteOpen10+5.7+0.57+1.80
Round 11Z.LiY.Qi – Q.YangClosed10+0.0+0.00-0.10
Round 12Z.LiJ.Auken – K.MollerClosed10-15.9-1.59-2.40
Round 13Z.LiB.Levin – S.WeinsteinClosed10+13.3+1.33-3.30
Round 14Z.LiI.Herbst – R.Benin-BarrClosed10+15.6+1.56+3.70
Round 15Z.LiR.Klinger – D.HoffmanClosed10+12.4+1.24-0.30

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
+10.3Round 4BEIJING ZHU YE23N♣6-1+10
+9.8Round 14HERBST164♠♣6-1+12
+9.6Round 13GORDON43N♦6-2+13
+9.5Round 15HOFFMAN256♠♠9=-9
+9.3Round 4BEIJING ZHU YE32♥♣Q-2+11
+8.8Round 10SEAMON-MOLSON73N♣4-5+0
+7.8Round 14HERBST184♥♥4=+5
+7.4Round 4BEIJING ZHU YE44♠♥J=+0
+7.4Round 5WELLWISE133N♠2+4+7
+6.8Round 11YANG JING166N♠9-1+13
+6.5Round 13GORDON63N♥4+2-11
+5.7Round 5WELLWISE162N♠6-1+6
+5.3Round 8ZHEJIANG HUAMEN113N♥4-1+8
+4.9Round 4BEIJING ZHU YE74♣♥8-1+6
+4.5Round 8ZHEJIANG HUAMEN123N♦4-3+7
+4.4Round 6GRANT243N♠K-3+7
+4.4Round 15HOFFMAN214♠♦4-1+5
+4.3Round 9PALERMO213N♣8+1+5
+4.2Round 12AUKEN214♥♦6-1+4
+3.4Round 15HOFFMAN261N♦5=+6
+3.3Round 3GABSI303N♥7=-6
+3.3Round 13GORDON24♥♣5=-1
+3.2Round 10SEAMON-MOLSON24♥♦2-1+7
+3.1Round 6GRANT303♦♥5=-1
+3.1Round 8ZHEJIANG HUAMEN142♥♣2-1+4
+3.1Round 12AUKEN274♥♦Q+1-5
+3.0Round 2POLISH SENIORS132♠♣4=-1
+2.9Round 11YANG JING154♠♣A-1-2
+2.8Round 2POLISH SENIORS113N♥3-1+5
+2.8Round 2POLISH SENIORS122♦♠7-1+5
+2.7Round 4BEIJING ZHU YE51N♠4-2+0
+2.7Round 14HERBST144♠♣10+1+14
+2.6Round 8ZHEJIANG HUAMEN204♠♦A=+0
+2.6Round 9PALERMO273♥♦9=+0
+2.5Round 4BEIJING ZHU YE91♠♦4+1+0
+2.5Round 10SEAMON-MOLSON102♦x♠J-1+2
+2.5Round 12AUKEN263♣♦3=+6
+2.4Round 8ZHEJIANG HUAMEN192♠♥K=+5
+2.4Round 14HERBST113♥♦6-1-2
+2.3Round 4BEIJING ZHU YE101N♠6+1+0
+2.3Round 5WELLWISE184♠♣3-1+5
+2.3Round 10SEAMON-MOLSON31N♣Q-1+3
+2.3Round 10SEAMON-MOLSON83♠♦A=+6
+2.2Round 4BEIJING ZHU YE64♣♠Q-2+11
+2.1Round 4BEIJING ZHU YE83♠♦Q+1+1
+2.1Round 11YANG JING123♥x♥2-2-8
+2.1Round 15HOFFMAN272♥♠2+1+0
+1.9Round 5WELLWISE142♠♣6+1+1
+1.9Round 5WELLWISE154♥♠K+1+11
+1.9Round 7CHATEAU ROSSENOVO74♠♥2-1+6
+1.8Round 13GORDON33N♦10+3+1
+1.6Round 2POLISH SENIORS184♠♥A-1+4
+1.6Round 9PALERMO222♠♦6+3+6
+1.4Round 2POLISH SENIORS174♣♠J+1+8
+1.4Round 10SEAMON-MOLSON64♠♣A+1+1
+1.3Round 12AUKEN304♥♦A-1+5
+1.2Round 10SEAMON-MOLSON54♠♥6+1+11
+1.2Round 11YANG JING132♥♠2=+1
+1.2Round 13GORDON84♠♠3+2-14
+1.1Round 2POLISH SENIORS162♣♠8=-1
+1.1Round 6GRANT264♠♥Q=+5
+1.1Round 8ZHEJIANG HUAMEN162♠♥A+1+0
+0.9Round 13GORDON53N♥5+2-12
+0.8Round 4BEIJING ZHU YE14♦♥5-1+4
+0.8Round 7CHATEAU ROSSENOVO94♥♣6+2-11
+0.7Round 15HOFFMAN242N♦K-2+5
+0.6Round 5WELLWISE204♠♣A=-1
+0.6Round 6GRANT231♣♦4+2+1
+0.5Round 14HERBST191N♠4+1+6
+0.4Round 9PALERMO285♦♠A+1-5
+0.2Round 2POLISH SENIORS192♥♠3=-1
+0.2Round 5WELLWISE122♠♦K=+0
+0.2Round 6GRANT274♥♦K-1+5
+0.2Round 12AUKEN253N♥5+1-5
+0.1Round 7CHATEAU ROSSENOVO64♥♥4=+1
-0.0Round 3GABSI252♦♠7=+0
-0.0Round 6GRANT283N♥10+2+0
-0.0Round 13GORDON94♠♠4+1+0
-0.1Round 6GRANT293♦♠6+1+0
-0.1Round 7CHATEAU ROSSENOVO14♥♣4=-1
-0.1Round 7CHATEAU ROSSENOVO33♣♦2=+9
-0.1Round 11YANG JING203N♠5+3-13
-0.2Round 9PALERMO231N♥4+1+0
-0.2Round 15HOFFMAN224♠♥9+1-5
-0.3Round 3GABSI211N♣9+1-1
-0.3Round 3GABSI223N♥2=-5
-0.4Round 13GORDON74♥♥5=+1
-0.5Round 14HERBST172N♥2=+0
-0.5Round 15HOFFMAN282♣♠4-2-2
-0.6Round 14HERBST134♠♣K+2+6
-0.7Round 7CHATEAU ROSSENOVO102♥♥4+1+0
-0.8Round 7CHATEAU ROSSENOVO44♥♠3+1+0
-0.9Round 8ZHEJIANG HUAMEN134♠♥A+2-7
-0.9Round 9PALERMO244♥♥10=+5
-1.0Round 15HOFFMAN294♠♣A=+0
-1.1Round 3GABSI242♦♣K=-2
-1.2Round 11YANG JING194♠♣J+1-1
-1.2Round 13GORDON14♠♠3=+0
-1.2Round 15HOFFMAN231N♥4-1-5
-1.3Round 3GABSI293N♥K+1+1
-1.3Round 5WELLWISE112♠♦A=-5
-1.5Round 8ZHEJIANG HUAMEN173N♥9+1+5
-1.7Round 2POLISH SENIORS154♥♦K+1+0
-1.8Round 7CHATEAU ROSSENOVO21N♦9+1+0
-1.9Round 6GRANT222♠♦A+2-7
-1.9Round 9PALERMO294♠♥K-2-3
-2.0Round 11YANG JING183♠♥6-1+0
-2.1Round 14HERBST205♣♦6=+1
-2.2Round 14HERBST121N♠3-1-5
-2.2Round 14HERBST153♠♦A-1+0
-2.3Round 3GABSI234♠♣10+1+0
-2.3Round 6GRANT253♦♥K-2+1
-2.5Round 8ZHEJIANG HUAMEN182♠♠J+1-1
-2.6Round 5WELLWISE192♥♣6+1-1
-2.7Round 3GABSI273N♥7-1-5
-2.7Round 9PALERMO262N♦7+1+0
-2.8Round 11YANG JING173N♣5-2-5
-3.3Round 12AUKEN236♦♠2-2-8
-3.4Round 11YANG JING113N♥Q+1+0
-3.5Round 11YANG JING143N♠4+2+14
-3.7Round 3GABSI265♣♦K=-7
-3.7Round 10SEAMON-MOLSON41N♣3=+0
-3.8Round 10SEAMON-MOLSON11N♦K+1-1
-4.1Round 12AUKEN294♠♦K-2-3
-4.4Round 9PALERMO304♠x♣K-1-6
-4.8Round 15HOFFMAN304♥♦10=+2
-5.0Round 12AUKEN225♦♥10-2-6
-5.1Round 6GRANT214♥♠6+2-1
-5.4Round 12AUKEN243♠♣9=+0
-5.6Round 9PALERMO251♦x♥4+1-5
-5.8Round 7CHATEAU ROSSENOVO54♠♦Q+1-6
-6.0Round 8ZHEJIANG HUAMEN154♥♦Q-2-8
-6.3Round 3GABSI283N♦A-1-11
-6.9Round 5WELLWISE172♠x♠K-2-5
-7.1Round 2POLISH SENIORS146♦♠3+1+15
-8.4Round 13GORDON103N♠4=-10
-8.5Round 10SEAMON-MOLSON94♠x♥6-4-11
-9.4Round 12AUKEN285♠♦K-2-12
-11.6Round 2POLISH SENIORS206♣♦8=+2
-11.8Round 7CHATEAU ROSSENOVO86♥x♣A-4-11