🇺🇸 ZWERLING Marc · USA2

39rank
-74.4Butler · 176 bds
-0.42per board
±4.7swing
-0.57vs par /bd · #19/20
-0.15adjusted /bd
Butler per round: -0.2 -0.2 -0.2 -0.2 -35.6 -35.6 -35.6 -35.6 -38.6 -38.6 -38.6by round

vs par split: bidding -0.33 · play -0.16

Strength of schedule: opponents averaged +0.28/bd (a tough draw) → opponent-adjusted -0.15/bd

Card play — on target: opening leads 67.4% #19 of 20 · declarer play 61.3% #20 of 20 · defence 91.5% #3 of 20

Card play by contract type — on target
vs NTvs a suit
Opening leads62.5% (16)70.4% (27)
Declarer play57.1% (7)62.5% (24)
Defence82.8% (29)96.2% (53)

Opening leads by suit led: ♠ 90.0% (10) · ♥ 38.5% (13) · ♦ 57.1% (7) · ♣ 84.6% (13)

vs par by strain: NT -0.35 (52) · a suit -0.64 (123)

vs par by level: part-score -1.33 (61) · game +0.11 (102) · slam -2.25 (12)

By role: declaring -0.67/bd (-2.30 vs par · 93) · defending -0.15/bd (+1.37 vs par · 83)

By vulnerability: vulnerable -0.25/bd (-0.17 vs par · 88) · not vulnerable -0.59/bd (-0.97 vs par · 88)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
QuarterfinalM.TolliverN.Fitzgibbon – A.MesburOpen16-3.0-0.19-1.75
QuarterfinalM.TolliverN.Fitzgibbon – A.MesburOpen16-15.5-0.97-1.44
QuarterfinalM.TolliverP.O'Briain – M.O'BriainOpen16+10.2+0.64+0.38
QuarterfinalM.TolliverP.Barry – R.AndersonOpen16+8.1+0.51-0.31
SemifinalM.TolliverM.Rosenberg – Z.MahmoodOpen16-23.7-1.48-2.44
SemifinalM.TolliverM.Rosenberg – Z.MahmoodOpen16-26.0-1.62-2.94
SemifinalM.TolliverM.Rosenberg – Z.MahmoodOpen16+19.8+1.24+2.38
SemifinalM.TolliverM.Rosenberg – Z.MahmoodOpen16-5.7-0.36+1.50
FinalM.TolliverA.Kowalski – J.RomanskiClosed16+15.0+0.94+1.25
FinalM.TolliverA.Kowalski – J.RomanskiClosed16-48.0-3.00-4.00
FinalM.TolliverA.Kowalski – J.RomanskiClosed16-5.6-0.35+1.12

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
+13.0Quarterfinal🇮🇪 IRELAND853NT♥2-2+13
+13.0Final🇵🇱 POLAND103NT♣2-2+13
+11.1Quarterfinal🇮🇪 IRELAND616♠♣10=+1
+11.0Semifinal🇺🇸 USA1425♥♠A=+4
+10.1Quarterfinal🇮🇪 IRELAND424♦x♣2-3+12
+8.6Quarterfinal🇮🇪 IRELAND873NT♣10=+0
+8.3Quarterfinal🇮🇪 IRELAND163NT♥Q+3+2
+8.0Semifinal🇺🇸 USA1403NT♣3-2+6
+8.0Semifinal🇺🇸 USA1583NT♥6+3+13
+8.0Final🇵🇱 POLAND123NT♠10+3+1
+8.0Final🇵🇱 POLAND344♠x♥8-1+13
+7.0Semifinal🇺🇸 USA1512♥x♣8-1+11
+6.7Semifinal🇺🇸 USA1387♠♠9=+0
+6.7Final🇵🇱 POLAND165♥♦9-1+11
+6.6Quarterfinal🇮🇪 IRELAND533NT♥9-3+4
+6.1Quarterfinal🇮🇪 IRELAND623NT♥9=+7
+6.0Semifinal🇺🇸 USA1505♣♥Q-4+11
+6.0Final🇵🇱 POLAND24♥♦5-1+12
+5.3Final🇵🇱 POLAND74♠x♥A-1+7
+4.7Quarterfinal🇮🇪 IRELAND153♥♣K-1+0
+4.7Semifinal🇺🇸 USA115♦♠J-2+11
+4.7Semifinal🇺🇸 USA1134♠♦6+1+0
+4.3Semifinal🇺🇸 USA1631NT♦3-2+7
+4.0Semifinal🇺🇸 USA144♠♣3=-1
+4.0Semifinal🇺🇸 USA1923♥♠A=+0
+4.0Final🇵🇱 POLAND706♣♦7-1+10
+4.0Final🇵🇱 POLAND803♠♣Q+1-1
+3.7Semifinal🇺🇸 USA1574♥♣3=+8
+3.7Semifinal🇺🇸 USA1834♠♦K-1+5
+3.3Semifinal🇺🇸 USA1612♠♣Q+2-1
+3.3Final🇵🇱 POLAND144♥♣7+2+11
+3.1Quarterfinal🇮🇪 IRELAND73NT♣10=-1
+3.0Semifinal🇺🇸 USA1533NT♦2=+0
+3.0Semifinal🇺🇸 USA1623♥♣9=+0
+3.0Semifinal🇺🇸 USA1913NT♣3-2+11
+2.7Quarterfinal🇮🇪 IRELAND123NT♣J+3-11
+2.7Quarterfinal🇮🇪 IRELAND562♥♣6=-1
+2.7Semifinal🇺🇸 USA1963♣♥3+1+1
+2.6Quarterfinal🇮🇪 IRELAND33♦♦7-1+4
+2.6Quarterfinal🇮🇪 IRELAND106♣♦K-1+12
+2.6Quarterfinal🇮🇪 IRELAND811NT♠4=-1
+2.4Quarterfinal🇮🇪 IRELAND484♥♦A-2+5
+2.3Quarterfinal🇮🇪 IRELAND634♠♠6+2+2
+2.3Semifinal🇺🇸 USA1485♥x♠3-1+6
+2.0Quarterfinal🇮🇪 IRELAND891NT♠5+1+0
+2.0Semifinal🇺🇸 USA1123NT♠6+2+2
+2.0Semifinal🇺🇸 USA1391♦♣3=+1
+2.0Final🇵🇱 POLAND383♥♦K-1+1
+1.9Quarterfinal🇮🇪 IRELAND833♥♣K-1+5
+1.9Quarterfinal🇮🇪 IRELAND914♦♦6-1+4
+1.7Quarterfinal🇮🇪 IRELAND64♥♠Q=+0
+1.7Semifinal🇺🇸 USA1543NT♠3-1+10
+1.6Quarterfinal🇮🇪 IRELAND364♠♦J=-1
+1.4Quarterfinal🇮🇪 IRELAND904♥♠K=-1
+1.1Quarterfinal🇮🇪 IRELAND54♥♦3+1+0
+1.0Final🇵🇱 POLAND713♠♦A-2-3
+0.9Quarterfinal🇮🇪 IRELAND573NT♥7+1+0
+0.9Quarterfinal🇮🇪 IRELAND843♦♥A=-10
+0.7Semifinal🇺🇸 USA1104♥♣A+1+1
+0.7Semifinal🇺🇸 USA1112♠♥3=-1
+0.7Semifinal🇺🇸 USA1143NT♥3+2+0
+0.7Final🇵🇱 POLAND363NT♠K+2-16
+0.7Final🇵🇱 POLAND404♠♥K+1+0
+0.6Quarterfinal🇮🇪 IRELAND353NT♠2-2+6
+0.6Quarterfinal🇮🇪 IRELAND584NT♦J=+1
+0.4Quarterfinal🇮🇪 IRELAND473NT♠5-1-8
+0.3Quarterfinal🇮🇪 IRELAND592♦♣J+1+1
+0.3Semifinal🇺🇸 USA1821NT♥6+1+0
+0.3Semifinal🇺🇸 USA1843NT♦2=+13
+0.3Semifinal🇺🇸 USA1854♥♣6+1+0
+0.3Final🇵🇱 POLAND772♥♦5-2+9
+0.1Quarterfinal🇮🇪 IRELAND382♠♥3-1+1
-0.0Quarterfinal🇮🇪 IRELAND83♠♦9-1-8
-0.0Quarterfinal🇮🇪 IRELAND374♥♣4+1+0
-0.0Quarterfinal🇮🇪 IRELAND552♦♠2+2+0
-0.0Semifinal🇺🇸 USA1332♥♠J+2+6
-0.0Semifinal🇺🇸 USA1434♠♦Q=-1
-0.0Semifinal🇺🇸 USA1442♠♦10=+0
-0.0Semifinal🇺🇸 USA1603NT♥A+1+0
-0.0Semifinal🇺🇸 USA1903NT♦5+1+0
-0.0Final🇵🇱 POLAND393NT♠K-1-6
-0.0Final🇵🇱 POLAND484♠♣K=+0
-0.0Final🇵🇱 POLAND684♠♣10+1+0
-0.0Final🇵🇱 POLAND694♠♦7+1+0
-0.0Final🇵🇱 POLAND764♠♦6+1+0
-0.3Quarterfinal🇮🇪 IRELAND514♥♦5+1+0
-0.3Semifinal🇺🇸 USA184♥♣2+1+0
-0.3Semifinal🇺🇸 USA1164♥♠4=+0
-0.3Semifinal🇺🇸 USA1553NT♦5+2+0
-0.3Semifinal🇺🇸 USA1563♦♥2+2-6
-0.3Semifinal🇺🇸 USA1936♦♣A=+0
-0.3Semifinal🇺🇸 USA1943NT♠5=+0
-0.3Final🇵🇱 POLAND13♥♥K-1-5
-0.3Final🇵🇱 POLAND654♠♥5=+0
-0.3Final🇵🇱 POLAND673NT♦9+2+11
-0.4Quarterfinal🇮🇪 IRELAND334♦♠9=+0
-0.4Quarterfinal🇮🇪 IRELAND943♠♥K-1+6
-0.6Quarterfinal🇮🇪 IRELAND931NT♥4=+2
-0.7Quarterfinal🇮🇪 IRELAND454♠♥9=+0
-0.7Quarterfinal🇮🇪 IRELAND523♠♦3-1+9
-0.7Semifinal🇺🇸 USA1883NT♥K+2+0
-0.7Final🇵🇱 POLAND154♥♥4=+0
-0.7Final🇵🇱 POLAND435♦♣A=-2
-0.9Quarterfinal🇮🇪 IRELAND503NT♥5+2-2
-1.0Quarterfinal🇮🇪 IRELAND16♠x♣K-2+0
-1.0Semifinal🇺🇸 USA1154♥♣A-2-6
-1.0Final🇵🇱 POLAND783♥x♥2-1+1
-1.3Semifinal🇺🇸 USA1372♠♦6+1+0
-1.3Final🇵🇱 POLAND62♠♣3=+0
-1.3Final🇵🇱 POLAND84♠x♦8-2+3
-1.3Final🇵🇱 POLAND743♥♠Q=+8
-1.3Final🇵🇱 POLAND794♥♠A-2+0
-1.6Quarterfinal🇮🇪 IRELAND885♥♦4=+0
-1.7Quarterfinal🇮🇪 IRELAND44♥♣2+1+0
-1.7Quarterfinal🇮🇪 IRELAND413NT♦6=-2
-1.7Quarterfinal🇮🇪 IRELAND863♥♦A=-6
-1.7Final🇵🇱 POLAND755♦x♥3-2-5
-2.0Quarterfinal🇮🇪 IRELAND954♠♣5+1+0
-2.0Semifinal🇺🇸 USA1814♠♣Q=+0
-2.0Final🇵🇱 POLAND53NT♠10-3-11
-2.0Final🇵🇱 POLAND112♠♣2+1-1
-2.0Final🇵🇱 POLAND46Pass-3
-2.0Final🇵🇱 POLAND724♥♦J-2-11
-2.1Quarterfinal🇮🇪 IRELAND342♥♠7-2-11
-2.3Semifinal🇺🇸 USA1525♦♥K-2-8
-2.3Semifinal🇺🇸 USA1593NT♠Q-1+2
-2.3Final🇵🇱 POLAND736♣♠Q=+0
-2.7Semifinal🇺🇸 USA192♠♣9-1-5
-2.7Semifinal🇺🇸 USA1862♥♥3+1-1
-3.0Semifinal🇺🇸 USA1471NT♥7+1-5
-3.0Final🇵🇱 POLAND31NT♠A-1-11
-3.3Semifinal🇺🇸 USA154♠♠Q-1-5
-3.3Final🇵🇱 POLAND374♥♦K+1-4
-3.4Quarterfinal🇮🇪 IRELAND492♠♥5-1-4
-3.7Semifinal🇺🇸 USA1895♣x♦3-2-2
-3.7Final🇵🇱 POLAND131NT♥K-2+2
-3.7Final🇵🇱 POLAND474♥♦10-1+2
-4.0Semifinal🇺🇸 USA1644♠♦Q-1-2
-4.3Quarterfinal🇮🇪 IRELAND435♦♥3-1-10
-4.3Semifinal🇺🇸 USA1353♠♠2=-7
-4.3Final🇵🇱 POLAND355♦x♣A=-4
-4.4Quarterfinal🇮🇪 IRELAND114♥♣10-2-9
-4.4Quarterfinal🇮🇪 IRELAND542♠♣9-1-2
-4.7Quarterfinal🇮🇪 IRELAND394♥♠7=+0
-4.7Final🇵🇱 POLAND443NT♥K-2-5
-4.7Final🇵🇱 POLAND663NT♥2+2-1
-5.0Quarterfinal🇮🇪 IRELAND22♣♦2=-5
-5.0Semifinal🇺🇸 USA1954♠♦7-1-5
-5.1Quarterfinal🇮🇪 IRELAND443♠♥5=-7
-5.1Quarterfinal🇮🇪 IRELAND961NT♥9+1+0
-5.3Quarterfinal🇮🇪 IRELAND643♦-1-12
-5.3Semifinal🇺🇸 USA1876♣♥3=+2
-5.4Quarterfinal🇮🇪 IRELAND406♣♦10-1-10
-5.4Quarterfinal🇮🇪 IRELAND604♥♣Q-1+2
-5.7Quarterfinal🇮🇪 IRELAND93NT♥2=-6
-5.9Quarterfinal🇮🇪 IRELAND143NT♠J+1+0
-6.0Semifinal🇺🇸 USA131NT♥6=-6
-6.0Semifinal🇺🇸 USA1462♠♦7=-9
-6.0Final🇵🇱 POLAND43♥♠7+1+1
-6.1Quarterfinal🇮🇪 IRELAND133♣♦K-1-6
-6.1Quarterfinal🇮🇪 IRELAND823♦♠K+1-7
-6.3Quarterfinal🇮🇪 IRELAND464♠♣A-1+2
-6.3Semifinal🇺🇸 USA164♠x♣K=-5
-6.7Quarterfinal🇮🇪 IRELAND923NT♠J-1-10
-6.7Semifinal🇺🇸 USA1343NT♦5-1-10
-7.0Semifinal🇺🇸 USA1362♠♥A-2-7
-7.0Final🇵🇱 POLAND91NT♣6+1-13
-8.0Final🇵🇱 POLAND424♠♦5-1-12
-10.3Semifinal🇺🇸 USA124♠♦9=-13
-10.7Final🇵🇱 POLAND452♣♥Q-4-11
-11.0Semifinal🇺🇸 USA176♣♠K=-11
-11.0Semifinal🇺🇸 USA1493NT♥10=-7
-11.0Final🇵🇱 POLAND334♥♥8-2-5
-11.0Final🇵🇱 POLAND413NT♠J-1-12
-12.7Semifinal🇺🇸 USA1456♦♠J-1-16
-15.0Semifinal🇺🇸 USA1416♠x♦K-4-15