ROH Seungjin · SEOUL

29rank
+17.6Butler · 42 bds
+0.42per board
±5.1swing
-0.50vs par /bd
+0.22adjusted /bd
Butler per round: 17.6 17.6 17.6 17.6by round

vs par split: bidding -0.93 · play +0.24

Strength of schedule: opponents averaged -0.20/bd (an easy draw) → opponent-adjusted +0.22/bd

Card play — on target: opening leads 40.0% · declarer play 91.7% · defence 81.2%

Card play by contract type — on target
vs NTvs a suit
Opening leads·40.0% (5)
Declarer play·91.7% (12)
Defence80.0% (5)81.8% (11)

Opening leads by suit led: ♠ 50.0% (2) · ♥ 100.0% (1) · ♦ 0.0% (1) · ♣ 0.0% (1)

vs par by strain: NT -0.50 (10) · a suit -0.74 (31)

vs par by level: part-score -0.73 (15) · game -0.95 (21) · slam +0.60 (5)

By role: declaring +0.32/bd (-1.19 vs par · 26) · defending +0.57/bd (+0.62 vs par · 16)

By vulnerability: vulnerable -0.17/bd (-1.14 vs par · 21) · not vulnerable +1.01/bd (+0.14 vs par · 21)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round of 32S.KangL.Lebowitz – A.GrossackClosed14+30.4+2.17+0.64
Round of 32S.KangL.Lebowitz – A.GrossackClosed14+8.3+0.59-0.36
Round of 32S.KangF.Nystrom – G.HelgemoOpen14-21.1-1.51-1.79
Round of 32S.KangF.Nystrom – G.HelgemoOpen0+0.0+0.00·

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
+11.3Round of 32LEBOWITZ226♠♣7-1+13
+9.9Round of 32LEBOWITZ36♠♥K=+0
+9.5Round of 32LEBOWITZ274♥♣3+2+11
+8.1Round of 32LEBOWITZ163NT♥5-4+6
+7.3Round of 32LEBOWITZ26♠♠2=+0
+6.7Round of 32LEBOWITZ63♥♣A=+7
+6.6Round of 32LEBOWITZ54♥♣K-1+10
+4.2Round of 32LEBOWITZ422NT♥7-3+6
+4.0Round of 32LEBOWITZ324♥♦3-1+6
+3.7Round of 32LEBOWITZ283NT♠6+1+0
+2.9Round of 32LEBOWITZ84♠♣8=-1
+1.9Round of 32LEBOWITZ344♥♠A-2-2
+1.8Round of 32LEBOWITZ174♠♠2+2+1
+1.5Round of 32LEBOWITZ144♥♣J=-1
+1.3Round of 32LEBOWITZ133NT♣5+1+0
+1.1Round of 32LEBOWITZ43♣♦5=+0
+0.9Round of 32LEBOWITZ12♥x♠A-1+7
+0.9Round of 32LEBOWITZ262♠♠2-1+0
+0.9Round of 32LEBOWITZ333NT♥J=+0
+0.9Round of 32LEBOWITZ374♠♣A=+0
+0.8Round of 32LEBOWITZ182♦♥Q-1-2
+0.6Round of 32LEBOWITZ10Adj.♠A+7
+0.4Round of 32LEBOWITZ194♥♠2+3-10
+0.2Round of 32LEBOWITZ302♥♣2=+0
-0.6Round of 32LEBOWITZ233NT♥J=+1
-0.7Round of 32LEBOWITZ253♠♦A-1+2
-0.7Round of 32LEBOWITZ312♦♥K-1-3
-1.3Round of 32LEBOWITZ74♠♥A-2-3
-1.5Round of 32LEBOWITZ403NT♠Q=+1
-1.6Round of 32LEBOWITZ122♠♠3=-6
-1.8Round of 32LEBOWITZ351NT♥6+1-6
-1.8Round of 32LEBOWITZ383♠♠9-1+1
-2.5Round of 32LEBOWITZ113♥♦A-2+0
-2.7Round of 32LEBOWITZ411NT♦J-1-5
-3.0Round of 32LEBOWITZ95♥♠K=-11
-3.1Round of 32LEBOWITZ213NT♣J-2-8
-4.7Round of 32LEBOWITZ244♥♠K-1-5
-5.4Round of 32LEBOWITZ156♦♠A+1+0
-5.6Round of 32LEBOWITZ364♥♣3=-1
-8.4Round of 32LEBOWITZ296♣♠K-1-10
-10.7Round of 32LEBOWITZ393♥x♦A=-12
-13.7Round of 32LEBOWITZ205♥x♥10=-14