DUBININ Alexander · ERA

33rank
+4.1Butler · 42 bds
+0.10per board
±4.5swing
+0.50vs par /bd
-0.43adjusted /bd
Butler per round: -9.4 -9.4 13.5by round

vs par split: bidding +0.05 · play +0.45

Strength of schedule: opponents averaged -0.53/bd (an easy draw) → opponent-adjusted -0.43/bd

Card play — on target: opening leads 81.8% · declarer play 75.0% · defence 96.4%

Card play by contract type — on target
vs NTvs a suit
Opening leads100.0% (2)77.8% (9)
Declarer play100.0% (2)66.7% (6)
Defence100.0% (8)95.0% (20)

Opening leads by suit led: ♠ 100.0% (2) · ♥ 100.0% (1) · ♦ 80.0% (5) · ♣ 66.7% (3)

vs par by strain: NT +2.31 (13) · a suit -0.31 (29)

vs par by level: part-score +1.88 (16) · game +0.21 (24) · slam -7.00 (2)

By role: declaring -0.32/bd (-3.29 vs par · 14) · defending +0.31/bd (+2.39 vs par · 28)

By vulnerability: vulnerable +0.96/bd (+0.91 vs par · 21) · not vulnerable -0.76/bd (+0.10 vs par · 21)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round of 16A.GromovI.Ivanov – A.IvanovClosed14+14.1+1.01+2.14
Round of 16A.GromovN.Barantiev – G.RalevOpen14-23.5-1.68-1.79
QuarterfinalA.GromovJ.Dai – L.YangOpen14+13.5+0.96+1.14

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
+9.9Round of 16CHATEAU ROSSENOVO94♠♥4=+0
+9.1QuarterfinalCHINA OPEN153NT♣2-1+10
+7.6QuarterfinalCHINA OPEN262♥♠K+4+10
+7.4QuarterfinalCHINA OPEN217♥♣8=+0
+5.0Round of 16CHATEAU ROSSENOVO144♥♠J+1+11
+4.2Round of 16CHATEAU ROSSENOVO72♠♦5-1+5
+3.8Round of 16CHATEAU ROSSENOVO41♠♦9-1+5
+2.8Round of 16CHATEAU ROSSENOVO182♦x♥3-1+0
+2.4Round of 16CHATEAU ROSSENOVO102♠x♦A-1+2
+2.3Round of 16CHATEAU ROSSENOVO252♦♥J+1-1
+1.9Round of 16CHATEAU ROSSENOVO172♥♦A-1+4
+1.9QuarterfinalCHINA OPEN223NT♠9+3+13
+1.4Round of 16CHATEAU ROSSENOVO63NT♦4+2+11
+1.4Round of 16CHATEAU ROSSENOVO274♠♦K-1+5
+1.2Round of 16CHATEAU ROSSENOVO243NT♣5+1+0
+1.1Round of 16CHATEAU ROSSENOVO53♣♠A-1+10
+1.1Round of 16CHATEAU ROSSENOVO164♥♣7=+1
+1.1QuarterfinalCHINA OPEN193NT♦10=-1
+1.1QuarterfinalCHINA OPEN205♦x♦A-1+0
+0.9QuarterfinalCHINA OPEN244♠♣7=+0
+0.7Round of 16CHATEAU ROSSENOVO263NT♦7+2+0
+0.5Round of 16CHATEAU ROSSENOVO32♦♣A-1-2
+0.4QuarterfinalCHINA OPEN183♥♦K=+0
+0.3Round of 16CHATEAU ROSSENOVO221NT♠2+1+10
+0.3QuarterfinalCHINA OPEN233NT♦10+1+0
+0.1Round of 16CHATEAU ROSSENOVO213NT♦8+2+0
+0.0QuarterfinalCHINA OPEN253NT♠2+2-10
-0.4Round of 16CHATEAU ROSSENOVO124♠♣7-1-10
-1.1Round of 16CHATEAU ROSSENOVO13NT♣5+2+0
-1.3QuarterfinalCHINA OPEN163♣♣5=+0
-1.3QuarterfinalCHINA OPEN284♥x♦A-3+8
-1.5Round of 16CHATEAU ROSSENOVO114♠♣3+1+0
-2.2Round of 16CHATEAU ROSSENOVO24NT♦5+2-1
-3.3QuarterfinalCHINA OPEN173NT♠Q-3-2
-3.8Round of 16CHATEAU ROSSENOVO282♠♣5=-6
-4.1Round of 16CHATEAU ROSSENOVO133♦♠J=+0
-4.9Round of 16CHATEAU ROSSENOVO83♦♣3+1-1
-5.8Round of 16CHATEAU ROSSENOVO154♠♣4=-7
-6.1Round of 16CHATEAU ROSSENOVO202♠♥8-1-6
-9.1Round of 16CHATEAU ROSSENOVO196♣♥A-1-14
-10.4QuarterfinalCHINA OPEN275♦♥9-3-12
-10.5Round of 16CHATEAU ROSSENOVO234♥x♥A=-11