LIU Yi Qian · SAIC VW

355rank
-13.8Butler · 60 bds
-0.23per board
±4.8swing
+0.23vs par /bd · #194/471
+0.00adjusted /bd
Butler per round: -3.3 -3.1 12 -9.3 -8.9 -1.2by round

vs par split: bidding +0.07 · play +0.17

Strength of schedule: opponents averaged +0.23/bd (a tough draw) → opponent-adjusted +0.00/bd

Card play — on target: opening leads 92.9% #8 of 469 · declarer play 93.3% #9 of 469 · defence 90.9% #54 of 471

Card play by contract type — on target
vs NTvs a suit
Opening leads75.0% (4)100.0% (10)
Declarer play100.0% (3)91.7% (12)
Defence75.0% (8)96.0% (25)

Opening leads by suit led: ♠ 100.0% (3) · ♥ 100.0% (3) · ♦ 80.0% (5) · ♣ 100.0% (3)

vs par by strain: NT +1.54 (13) · a suit -0.13 (47)

vs par by level: part-score -1.29 (28) · game +1.96 (24) · slam +0.38 (8)

By role: declaring +0.34/bd (-2.00 vs par · 27) · defending -0.70/bd (+2.06 vs par · 33)

By vulnerability: vulnerable +0.25/bd (+1.20 vs par · 30) · not vulnerable -0.71/bd (-0.73 vs par · 30)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 6M.HuJ.He – Z.WangClosed10-3.3-0.33-2.70
Round 7M.HuA.Dubinin – A.GromovOpen10-3.1-0.31-0.40
Round 9M.HuP.Balakrishnan – R.TewariClosed10+12.0+1.20+4.10
Round 10M.HuJ.Shih – P.WangClosed10-9.3-0.93-0.50
Round 11M.HuM.Sawiruddin – M.HartonoOpen10-8.9-0.89-1.20
Round 12M.HuJ.Hidskes – W.De JongClosed10-1.2-0.12+2.10

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
+11.6Round 7GROMOV86♠♣7=+11
+11.5Round 11INDONESIA SENIORS153NT♣8=+11
+8.1Round 9NADAR276♥♠4=+0
+7.8Round 12HRG NETHERLANDS296♦♥7=+0
+6.8Round 6QUANZHOU FENGDA266♠♥Q=+0
+5.6Round 7GROMOV15♦♠8=+3
+5.3Round 9NADAR234♥♠8-1+12
+5.0Round 6QUANZHOU FENGDA215♣x♠A-4+4
+5.0Round 10YEH MIX103NT♠10-2+8
+4.2Round 10YEH MIX51NT♣4+2+7
+4.0Round 10YEH MIX71NT♣8=+6
+3.8Round 12HRG NETHERLANDS215♣♥K-2+6
+3.5Round 11INDONESIA SENIORS205♣♦4=+3
+2.7Round 6QUANZHOU FENGDA272♥♣4-1-4
+2.4Round 6QUANZHOU FENGDA244♥♦A-1+5
+2.4Round 9NADAR244♠♥K=+0
+2.4Round 9NADAR263♠♦J+2+9
+2.0Round 9NADAR215♦♣4-1+5
+1.9Round 6QUANZHOU FENGDA303♠♦J=+0
+1.5Round 9NADAR253♦♥5-1+5
+1.1Round 11INDONESIA SENIORS124♥♦Q=-1
+1.0Round 11INDONESIA SENIORS171NT♠2+1+7
+0.9Round 12HRG NETHERLANDS284♥♦A+2+11
+0.8Round 12HRG NETHERLANDS222♦♥5+1+0
+0.6Round 12HRG NETHERLANDS254♥♠K=+0
+0.5Round 7GROMOV32♥♥9+1-6
-0.2Round 7GROMOV64♥♦5=+1
-0.2Round 9NADAR302♠♣6-4+5
-0.3Round 7GROMOV52♥♦9+1+0
-0.4Round 12HRG NETHERLANDS277♣♥9=-2
-0.8Round 9NADAR222♠♣Q+1+0
-0.9Round 6QUANZHOU FENGDA231NT♦7-1-1
-0.9Round 7GROMOV101NT♥10+1+1
-1.0Round 10YEH MIX82♥♦4=+0
-1.1Round 11INDONESIA SENIORS113NT♠4+1+10
-1.2Round 7GROMOV93♠♦Q=+0
-1.2Round 10YEH MIX93♦♣K+1+0
-1.5Round 12HRG NETHERLANDS235♦♠K+1+13
-1.8Round 11INDONESIA SENIORS164♥♦A=+0
-1.9Round 7GROMOV74♥♠5=+0
-2.1Round 11INDONESIA SENIORS183♠♣K-2-11
-2.1Round 12HRG NETHERLANDS244♣♦K-1+2
-2.2Round 10YEH MIX22♥♠9+1-6
-2.6Round 6QUANZHOU FENGDA252♥♦A=-6
-3.2Round 11INDONESIA SENIORS142♠♣10-1-4
-3.3Round 10YEH MIX42♥♥7=+0
-3.4Round 6QUANZHOU FENGDA284♥♣9+1-1
-3.4Round 6QUANZHOU FENGDA293NT♦J-1-12
-3.4Round 9NADAR286NT♦9+1+11
-3.8Round 10YEH MIX33NT♦J-1-1
-4.1Round 7GROMOV22♠x♥5-2-2
-4.2Round 10YEH MIX63♥♦5+1-6
-4.9Round 11INDONESIA SENIORS132NT♠2+2-10
-5.1Round 12HRG NETHERLANDS306♠♠6=+0
-5.3Round 9NADAR295♦♥Q-1-6
-6.0Round 12HRG NETHERLANDS263♠♥4+1-9
-6.8Round 10YEH MIX14♣♦K+2-13
-11.8Round 6QUANZHOU FENGDA224♠x♦5=-12
-12.2Round 7GROMOV44♥x♣5-3-12
-12.9Round 11INDONESIA SENIORS196NT♥5-1-17