ZHENG Yixin · ASYMCHEM

149rank
+34.5Butler · 100 bds
+0.34per board
±4.1swing
+0.94vs par /bd · #38/567
+0.15adjusted /bd
Butler per round: -0.4 2.1 1.8 0.1 0.9 7.7 20.4 10.6 -1.5 -7.2by round

vs par split: bidding +0.91 · play +0.03

Strength of schedule: opponents averaged -0.20/bd (an easy draw) → opponent-adjusted +0.15/bd

Card play — on target: opening leads 81.5% #245 of 567 · declarer play 77.8% #258 of 567 · defence 78.7% #442 of 567

Card play by contract type — on target
vs NTvs a suit
Opening leads70.0% (10)88.2% (17)
Declarer play100.0% (7)70.0% (20)
Defence77.8% (18)79.3% (29)

Opening leads by suit led: ♠ 66.7% (9) · ♥ 83.3% (6) · ♦ 100.0% (8) · ♣ 75.0% (4)

vs par by strain: NT +1.42 (33) · a suit +0.70 (67)

vs par by level: part-score +0.94 (49) · game +0.55 (47) · slam +5.50 (4)

By role: declaring +0.80/bd (-0.02 vs par · 53) · defending -0.17/bd (+2.02 vs par · 47)

By vulnerability: vulnerable +1.06/bd (+1.63 vs par · 49) · not vulnerable -0.34/bd (+0.28 vs par · 51)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1W.WangS.Basu – B.DeyClosed10-0.4-0.04-0.90
Round 2W.WangA.Makmitree – S.YaisawangClosed10+2.1+0.21-1.40
Round 5W.WangX.Zou – Q.JiangClosed10+1.8+0.18-0.40
Round 6W.WangZ.Shen – W.GuoClosed10+0.1+0.01-1.70
Round 7W.WangN.Lee – B.LuiClosed10+0.9+0.09+3.50
Round 10W.WangT.Chodchoy – T.JitngamkusolOpen10+7.7+0.77+3.10
Round 11Y.WuJ.Thompson – L.GinnanOpen10+20.4+2.04+2.60
Round 12Z.XieX.Shi – X.GanClosed10+10.6+1.06+1.50
Round 14W.WangT.Zhou – X.HeOpen10-1.5-0.15+1.30
Round 15W.WangJ.Park – J.JangOpen10-7.2-0.72+1.80

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
+11.1Round 11GINNAN163NTx♠3-3+12
+9.0Round 11GINNAN134♥♣8-2+8
+8.9Round 2BANGKOK MIND SPORT125♥x♣A-3+0
+8.4Round 11GINNAN183♥♠3-5+9
+8.3Round 10BBC THAILAND23♥♠3-1+10
+6.5Round 6HUBEI FUXING296♠♦J=+0
+6.3Round 2BANGKOK MIND SPORT174♠♥A=+0
+6.2Round 5BEIJINGXUGUANG194♠♦5=+7
+5.5Round 12NANGANG POWER293NT♣6-1+6
+5.3Round 14MINGXIN GROUP154♠♥2+1+11
+5.2Round 1INDIA TSANGPO14♠♣3=+0
+5.1Round 5BEIJINGXUGUANG204♠♣2-1+6
+4.8Round 11GINNAN172♥♥3=+11
+4.1Round 6HUBEI FUXING283♠♦2-1+6
+4.1Round 12NANGANG POWER274♠♦6=+0
+4.0Round 6HUBEI FUXING251NT♦8+1+0
+4.0Round 11GINNAN193NT♦3=+0
+3.8Round 2BANGKOK MIND SPORT163NT♠3=+7
+3.7Round 10BBC THAILAND44♥♠7-1+6
+3.6Round 5BEIJINGXUGUANG182NT♠4=-1
+3.3Round 2BANGKOK MIND SPORT154♦♠2=+2
+3.3Round 7KONG HAN45♦♠K+1+3
+3.1Round 1INDIA TSANGPO84♠♥4-1+10
+2.9Round 2BANGKOK MIND SPORT183♣♦K=+5
+2.8Round 14MINGXIN GROUP202♥♦A=+6
+2.7Round 7KONG HAN23♣♦Q=+1
+2.7Round 15GALAGILE212♥♦6+1+0
+2.5Round 15GALAGILE283NT♥J+3+11
+2.4Round 14MINGXIN GROUP192♠♦2-1+4
+2.3Round 12NANGANG POWER243NT♥J-2+8
+2.2Round 1INDIA TSANGPO52♣♥3+3+7
+2.2Round 7KONG HAN105♦♠Q-1+6
+2.2Round 12NANGANG POWER263♦♦5-2+2
+2.1Round 1INDIA TSANGPO62♥♣A+1-7
+2.1Round 12NANGANG POWER303♦♦A-2-1
+1.8Round 15GALAGILE232♠♥Q+1+1
+1.7Round 10BBC THAILAND11NT♦9=+5
+1.6Round 6HUBEI FUXING232NT♥6+1+0
+1.6Round 10BBC THAILAND62♠♣10=-1
+1.5Round 7KONG HAN64♥x♦6-2+3
+1.4Round 1INDIA TSANGPO92♦♣A+1-3
+1.4Round 2BANGKOK MIND SPORT144♦♥7=+6
+1.4Round 11GINNAN124♥♦J=+0
+1.3Round 10BBC THAILAND102♠♥9=+0
+1.3Round 15GALAGILE263♥♣A-2+10
+1.2Round 7KONG HAN31NT♥10+1+0
+1.1Round 15GALAGILE294♠x♥A-1+7
+0.8Round 1INDIA TSANGPO101NT♥3=+1
+0.7Round 12NANGANG POWER284♥♠7+1-11
+0.6Round 5BEIJINGXUGUANG163♣♥K+1-7
+0.6Round 14MINGXIN GROUP123NT♠3+1+0
+0.5Round 11GINNAN201NT♠3-1+0
+0.5Round 14MINGXIN GROUP141NT♣9=-1
+0.5Round 15GALAGILE253NT♣4+1+0
+0.4Round 7KONG HAN72♦♥3=+1
+0.3Round 12NANGANG POWER232♥♥9+1+0
+0.2Round 6HUBEI FUXING302♥♠3+2-6
+0.2Round 15GALAGILE243NT♠2+2+0
-0.0Round 5BEIJINGXUGUANG121NT♦5-1-2
+0.0Round 10BBC THAILAND86NT♦7=+11
-0.2Round 5BEIJINGXUGUANG112♠♠4+1+0
-0.2Round 10BBC THAILAND34♣♠7+1+6
-0.3Round 6HUBEI FUXING213NT♥J-3-6
-0.5Round 1INDIA TSANGPO71NT♥5+1+0
-0.8Round 14MINGXIN GROUP132♣♥Q=+1
-0.9Round 6HUBEI FUXING222♥♦K+1+0
-1.0Round 12NANGANG POWER211♥♠K+1+0
-1.1Round 7KONG HAN83NT♥Q+3+10
-1.5Round 10BBC THAILAND91NT♥K=-5
-1.6Round 2BANGKOK MIND SPORT131NT♦Q+1+0
-1.6Round 5BEIJINGXUGUANG152♥♠A=-5
-1.7Round 12NANGANG POWER256♦♣10+1+11
-1.9Round 7KONG HAN14♥♣6-2+0
-1.9Round 14MINGXIN GROUP113NT♣10=+1
-2.4Round 6HUBEI FUXING261♠♠J-2-2
-2.5Round 5BEIJINGXUGUANG141NT♠3-1+3
-2.7Round 14MINGXIN GROUP184♥♠10=-3
-3.1Round 1INDIA TSANGPO22NT♠7+3-2
-3.2Round 7KONG HAN54♦♠8-2-2
-3.2Round 14MINGXIN GROUP163♠♥A=+0
-3.3Round 10BBC THAILAND52♣x♠5-1+0
-3.6Round 1INDIA TSANGPO34♥♦K-1-5
-3.9Round 10BBC THAILAND73NT♦7+1-1
-3.9Round 12NANGANG POWER226♥♦J=+0
-4.1Round 6HUBEI FUXING245♦♠A-2-5
-4.2Round 7KONG HAN93NT♠2=+13
-4.3Round 15GALAGILE274♠x♣K-2-5
-4.4Round 5BEIJINGXUGUANG174♠♦A-1-5
-4.5Round 14MINGXIN GROUP172♠♦10+3-6
-5.0Round 5BEIJINGXUGUANG134♠♣Q=+0
-5.2Round 11GINNAN145♣♦3=-7
-5.9Round 15GALAGILE223NT♥6=+0
-6.5Round 11GINNAN154♠♦3+2-1
-7.1Round 11GINNAN113NT♠J-3-6
-7.1Round 15GALAGILE303NT♠7=-6
-7.3Round 2BANGKOK MIND SPORT193NT♦10+1-11
-7.7Round 2BANGKOK MIND SPORT204♠♣9-2-12
-7.9Round 2BANGKOK MIND SPORT115♦x♥5-1-11
-8.0Round 1INDIA TSANGPO44♥♦9=-10
-8.6Round 6HUBEI FUXING275♠♥A=-4