HUANG Yan · LU DONG

101rank
-12.7Butler · 42 bds
-0.30per board
±2.9swing
+0.90vs par /bd
-0.49adjusted /bd
Butler per round: -4.2 0.2 -8.7by round

vs par split: bidding +1.52 · play -0.62

Strength of schedule: opponents averaged -0.19/bd (an easy draw) → opponent-adjusted -0.49/bd

Card play — on target: opening leads 85.7% · declarer play 77.8% · defence 77.3%

Card play by contract type — on target
vs NTvs a suit
Opening leads50.0% (4)100.0% (10)
Declarer play50.0% (2)85.7% (7)
Defence85.7% (7)73.3% (15)

Opening leads by suit led: ♠ 100.0% (2) · ♥ 83.3% (6) · ♦ 100.0% (2) · ♣ 75.0% (4)

vs par by strain: NT +1.57 (14) · a suit +0.57 (28)

vs par by level: part-score +0.69 (16) · game +1.52 (25) · slam -11.00 (1)

By role: declaring -0.61/bd (-1.90 vs par · 20) · defending -0.02/bd (+3.46 vs par · 22)

By vulnerability: vulnerable +0.04/bd (+0.81 vs par · 21) · not vulnerable -0.64/bd (+1.00 vs par · 21)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round of 32D.LuJ.Reining – P.CholakovClosed14-4.2-0.30+2.07
Round of 16D.LuI.Grzejdziak – S.GrzejdziakClosed14+0.2+0.01+1.00
QuarterfinalD.LuC.D'Ovidio – M.BompisOpen14-8.7-0.62-0.36

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
+6.3Round of 16POLAND233NT♥J-3+10
+6.0QuarterfinalGOOD SIX144♥♦3-1+4
+4.2Round of 321R5W13♠x♥A-2+5
+3.0QuarterfinalGOOD SIX94♠♣K+2+2
+2.3QuarterfinalGOOD SIX34♥♠K=+0
+2.2Round of 16POLAND163♣♥A=+6
+2.1Round of 16POLAND221NT♣Q-2-1
+2.0Round of 321R5W43♣♦6=+0
+2.0QuarterfinalGOOD SIX72♠♥J=+6
+1.8Round of 16POLAND274♠x♥Q-2+4
+1.7Round of 321R5W93NT♥9=+17
+1.6QuarterfinalGOOD SIX43♦♥J=+1
+1.5Round of 321R5W53♦♣2-1+4
+1.5Round of 16POLAND244♥♣7+1+0
+1.2Round of 16POLAND194♥♦5=-1
+1.1Round of 321R5W124♠♣J=+14
+0.9Round of 321R5W102♠♣3=-6
+0.9Round of 16POLAND281NT♥5-2+1
+0.5Round of 16POLAND172♠♥A+1+6
+0.0QuarterfinalGOOD SIX64♠♦3+2+1
-0.1QuarterfinalGOOD SIX54♠♣7=+0
-0.3Round of 321R5W133NT♥A=+0
-0.4Round of 321R5W72NT♥3-1+1
-0.5Round of 321R5W65♦♣7=-14
-0.5Round of 16POLAND213NT♥5+3+13
-0.9Round of 321R5W112♠♥K=+1
-1.0Round of 321R5W143NT♣8+2+11
-1.2Round of 16POLAND203♠♦7-1+1
-1.4Round of 16POLAND254♠♥K=+0
-2.0QuarterfinalGOOD SIX102♥♦9=+0
-2.4Round of 321R5W31NT♠9=-8
-2.7Round of 16POLAND265♥♠A-3-10
-2.7QuarterfinalGOOD SIX13NT♠A-2+1
-2.7QuarterfinalGOOD SIX134♥♠J=-13
-2.9QuarterfinalGOOD SIX24♥♠A=+0
-3.0Round of 321R5W24♠♠2-2+6
-3.4QuarterfinalGOOD SIX124♥♠3+1-1
-3.9QuarterfinalGOOD SIX111NT♥3-2-6
-5.0Round of 16POLAND183NT♥8+2-4
-5.5Round of 16POLAND156NT♦10-1-11
-5.9QuarterfinalGOOD SIX84♠♣K+1+0
-7.1Round of 321R5W83NT♥8+2-2