DAI Jianming · SAIC VW

98rank
+52.4Butler · 100 bds
+0.52per board
±4.1swing
+1.29vs par /bd · #31/471
+0.73adjusted /bd
Butler per round: 19.6 -4.7 13.7 -11.6 12.4 4.8 14.7 5.9 -21.8 19.4by round

vs par split: bidding +0.39 · play +0.90

Strength of schedule: opponents averaged +0.21/bd (a tough draw) → opponent-adjusted +0.73/bd

Card play — on target: opening leads 85.7% #85 of 469 · declarer play 84.6% #66 of 469 · defence 95.7% #11 of 471

Card play by contract type — on target
vs NTvs a suit
Opening leads62.5% (8)100.0% (13)
Declarer play88.9% (9)82.4% (17)
Defence94.1% (17)96.7% (30)

Opening leads by suit led: ♠ 80.0% (5) · ♥ 100.0% (7) · ♦ 80.0% (5) · ♣ 75.0% (4)

vs par by strain: NT +1.32 (34) · a suit +1.27 (66)

vs par by level: part-score +0.77 (35) · game +1.23 (53) · slam +3.08 (12)

By role: declaring +1.17/bd (-0.47 vs par · 53) · defending -0.20/bd (+3.28 vs par · 47)

By vulnerability: vulnerable +1.43/bd (+1.52 vs par · 50) · not vulnerable -0.38/bd (+1.06 vs par · 50)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 3L.YangR.Tobing – T.AsbiOpen10+19.6+1.96+2.20
Round 4L.YangJ.Zhou – Y.ChenOpen10-4.7-0.47+1.40
Round 5L.YangS.Afriani – Y.WirahmaOpen10+13.7+1.37-0.30
Round 6L.YangK.Jin – X.BaoOpen10-11.6-1.16+0.80
Round 7L.YangJ.Kalita – M.NowosadzkiClosed10+12.4+1.24+1.70
Round 8L.YangH.Liu – Y.WangOpen10+4.8+0.48+4.30
Round 12L.YangA.Bos – E.WijnenOpen10+14.7+1.47-0.80
Round 13L.YangR.Ritmeijer – M.TichaOpen10+5.9+0.59-1.70
Round 14L.YangM.Rosenberg – C.WillenkenClosed10-21.8-2.18+1.30
Round 15L.YangR.Chen – J.HuangClosed10+19.4+1.94+4.00

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
+13.4Round 12HRG NETHERLANDS226♦x♦5-4+14
+8.8Round 3INDONESIA OPEN ME296♠♥8=+0
+8.2Round 13WHITE HOUSE66♠♣K=-13
+8.1Round 13WHITE HOUSE53NT♣2=+0
+7.5Round 5TELKOM UNIVERSITY176♥♠J=+0
+6.6Round 4CHINA HYX44♥♥5=+0
+6.4Round 8BEIJING TRINERGY173NT♣8-1+16
+6.3Round 12HRG NETHERLANDS263♠♥4+2+9
+5.7Round 8BEIJING TRINERGY196♠♣Q-2+11
+5.6Round 6QUANZHOU FENGDA296♦♥2-2+13
+5.4Round 7GROMOV13NT♣2-2+9
+5.2Round 13WHITE HOUSE73NT♣Q-2+8
+5.0Round 3INDONESIA OPEN ME283NT♥5=+11
+4.9Round 5TELKOM UNIVERSITY192♥♠J=+7
+4.9Round 13WHITE HOUSE43NT♠K-1+12
+4.9Round 15CHINESE TAIPEI231NT♣3=-2
+4.7Round 12HRG NETHERLANDS293NT♠6=+13
+4.7Round 15CHINESE TAIPEI221NT♣4=+10
+4.5Round 15CHINESE TAIPEI262♥♠J+1+7
+3.4Round 3INDONESIA OPEN ME233♣♥8=+9
+3.4Round 5TELKOM UNIVERSITY162♠♣A=+5
+3.4Round 6QUANZHOU FENGDA284♥♣9+1+1
+3.3Round 3INDONESIA OPEN ME254♠♥A-1-2
+3.3Round 5TELKOM UNIVERSITY113NT♥9+1+0
+3.2Round 3INDONESIA OPEN ME305♣x♦7-2+12
+3.2Round 8BEIJING TRINERGY144♣♠A-1+5
+3.1Round 7GROMOV24♥♣2+1+0
+3.0Round 4CHINA HYX22♠♦A=+6
+2.9Round 8BEIJING TRINERGY165♦♣9=+7
+2.7Round 5TELKOM UNIVERSITY181NT♦6=-8
+2.5Round 6QUANZHOU FENGDA215♣x♠K-3+4
+2.4Round 15CHINESE TAIPEI285♦x♣Q-3+14
+2.3Round 15CHINESE TAIPEI252♠♣7+1+1
+2.3Round 15CHINESE TAIPEI294♥♥6-1+6
+2.1Round 5TELKOM UNIVERSITY124♥♦10+1+0
+2.1Round 12HRG NETHERLANDS244♣♥Q-1-2
+2.0Round 4CHINA HYX32NT♦8=+1
+2.0Round 7GROMOV43NT♣2-2+3
+2.0Round 13WHITE HOUSE23NT♠3+1+1
+2.0Round 14FLEISHER172♦♠J-4+3
+1.9Round 7GROMOV74♥♣2=+0
+1.7Round 14FLEISHER195♣♦K+2-4
+1.2Round 5TELKOM UNIVERSITY202♦♥7+2+1
+1.2Round 7GROMOV93♠♣5=+0
+1.1Round 4CHINA HYX96♠♥J+1+11
+1.0Round 3INDONESIA OPEN ME243NT♥3+2+1
+0.9Round 6QUANZHOU FENGDA232♠♥3-1+1
+0.9Round 7GROMOV101NT♦2+1-1
+0.8Round 12HRG NETHERLANDS233NT♥10=-13
+0.7Round 8BEIJING TRINERGY203♥♣K+1+1
+0.6Round 15CHINESE TAIPEI213♥♣J-1+3
+0.5Round 15CHINESE TAIPEI244♠♦K+1+0
+0.4Round 3INDONESIA OPEN ME222♠♣Q=-9
+0.4Round 7GROMOV51NT♣2+2+0
+0.2Round 7GROMOV64♥♦2=-1
+0.1Round 14FLEISHER144♠♥Q+2+8
-0.1Round 15CHINESE TAIPEI303NT♣4+2+1
-0.4Round 14FLEISHER166♣x♦2-2+0
-0.5Round 8BEIJING TRINERGY113NT♥6+1+10
-0.6Round 12HRG NETHERLANDS254♥♠A=+0
-0.7Round 7GROMOV34♣♣2+1+6
-0.7Round 14FLEISHER133NT♥J+1-1
-0.8Round 8BEIJING TRINERGY151NT♦J=-7
-0.9Round 12HRG NETHERLANDS284♥♦K+2-11
-1.0Round 13WHITE HOUSE83NT♦5+3-1
-1.1Round 3INDONESIA OPEN ME264♥♦Q=+0
-1.1Round 5TELKOM UNIVERSITY144♥♦9=+0
-1.3Round 3INDONESIA OPEN ME271NT♥4+1+0
-1.3Round 4CHINA HYX13NT♦4-1+6
-1.3Round 4CHINA HYX64♠♥3+1+10
-1.3Round 4CHINA HYX73NT♣10+2-1
-1.5Round 4CHINA HYX53♠♠Q=+0
-1.5Round 12HRG NETHERLANDS277NT♦7=+0
-1.9Round 6QUANZHOU FENGDA302♠♦K+1+0
-2.0Round 7GROMOV84♠♣2=+1
-2.4Round 4CHINA HYX105♣♠3=-9
-2.4Round 6QUANZHOU FENGDA244♥♦A-1-5
-2.4Round 8BEIJING TRINERGY125♦♥5=+1
-2.4Round 14FLEISHER203♦♠7-1-5
-2.6Round 5TELKOM UNIVERSITY151NT♣6+1+0
-2.7Round 8BEIJING TRINERGY132♠♥3+1-1
-2.7Round 15CHINESE TAIPEI272♦♠9-2+0
-3.0Round 6QUANZHOU FENGDA253♣♥Q=+0
-3.1Round 3INDONESIA OPEN ME214♠x♣7-1+0
-3.6Round 13WHITE HOUSE94♠♣5+2-1
-4.1Round 6QUANZHOU FENGDA224♣♦A=-6
-4.4Round 14FLEISHER153NT♥6=+0
-4.5Round 13WHITE HOUSE33NT♦5=+0
-4.8Round 12HRG NETHERLANDS213♦♥K-3-7
-4.8Round 12HRG NETHERLANDS303NT♦5+3-11
-5.0Round 14FLEISHER116♠♣A+1+11
-5.8Round 6QUANZHOU FENGDA272♦x♠8-1+0
-5.9Round 14FLEISHER185♥♠A=+0
-6.4Round 13WHITE HOUSE103NT♠2+3-13
-6.8Round 6QUANZHOU FENGDA266♠♣4=+0
-6.8Round 14FLEISHER123NT♥6=+1
-7.0Round 13WHITE HOUSE16♣♣2-1-10
-7.7Round 5TELKOM UNIVERSITY135♥x♣K-2-8
-7.7Round 8BEIJING TRINERGY183NT♣5+1+0
-9.6Round 4CHINA HYX84♥x♦Q=-10