LIU Hongbin · BLACK EARTH GOD DUCK BRIDGE CL

297rank
-42.2Butler · 14 bds
-3.01per board
±4.1swing
-4.21vs par /bd
-3.41adjusted /bd
Butler per round: -16.5 -25.7by round

vs par split: bidding -2.57 · play -1.64

Strength of schedule: opponents averaged -0.40/bd (an easy draw) → opponent-adjusted -3.41/bd

Card play — on target: opening leads 100.0% · declarer play 75.0% · defence 40.0%

Card play by contract type — on target
vs NTvs a suit
Opening leads·100.0% (1)
Declarer play100.0% (2)66.7% (6)
Defence·40.0% (5)

Opening leads by suit led: ♥ 100.0% (1)

vs par by strain: NT +0.33 (3) · a suit -5.46 (11)

vs par by level: part-score -3.14 (7) · game -5.29 (7)

By role: declaring -1.18/bd (-3.22 vs par · 9) · defending -6.32/bd (-6.00 vs par · 5)

By vulnerability: vulnerable -2.13/bd (-4.71 vs par · 7) · not vulnerable -3.90/bd (-3.71 vs par · 7)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1Y.WangY.Yang – Q.XieClosed7-16.5-2.36-2.57
Round 2Y.WangN.Deng – X.XueOpen7-25.7-3.67-5.86

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
+3.6Round 2BEIJING LAWYERS104♥♠K=+3
+3.2Round 1KALAJUN-XINJIANG13NT♦9+1+0
+3.1Round 1KALAJUN-XINJIANG41NT♣A=+12
-0.2Round 2BEIJING LAWYERS112♠♣K+1+1
-1.2Round 1KALAJUN-XINJIANG61NT♥4=-11
-3.0Round 1KALAJUN-XINJIANG32♠♣K=-6
-3.1Round 2BEIJING LAWYERS82♠♦A-1-5
-3.8Round 2BEIJING LAWYERS144♠♣7-2-5
-5.2Round 1KALAJUN-XINJIANG52♠♥A=-6
-5.2Round 1KALAJUN-XINJIANG73♥♦K=-7
-5.5Round 2BEIJING LAWYERS124♥x♦J-1-7
-6.7Round 2BEIJING LAWYERS134♠♥4+2-17
-8.2Round 1KALAJUN-XINJIANG24♥♦Q+1+0
-10.0Round 2BEIJING LAWYERS94♠♣K+1-11