🇵🇱 KOWALSKI Apolinary · POLAND

23rank
-33.7Butler · 208 bds
-0.16per board
±4.6swing
+0.21vs par /bd · #8/21
-0.09adjusted /bd
Butler per round: -22.2 -22.2 -22.2 -22.2 -22.2 -37.6 -37.6 -37.6 -37.6 -37.6 26.1 26.1 26.1 26.1 26.1by round

vs par split: bidding +0.14 · play +0.06

Strength of schedule: opponents averaged +0.07/bd (a tough draw) → opponent-adjusted -0.09/bd

Card play — on target: opening leads 84.4% #9 of 21 · declarer play 67.4% #18 of 21 · defence 87.4% #10 of 21

Card play by contract type — on target
vs NTvs a suit
Opening leads100.0% (17)78.7% (47)
Declarer play63.6% (11)68.6% (35)
Defence78.6% (28)90.4% (83)

Opening leads by suit led: ♠ 92.9% (14) · ♥ 88.2% (17) · ♦ 72.2% (18) · ♣ 86.7% (15)

vs par by strain: NT +0.46 (55) · a suit +0.12 (153)

vs par by level: part-score -0.20 (66) · game +0.45 (133) · slam -0.33 (9)

By role: declaring -0.49/bd (-2.45 vs par · 95) · defending +0.12/bd (+2.45 vs par · 113)

By vulnerability: vulnerable -0.60/bd (+0.16 vs par · 104) · not vulnerable +0.28/bd (+0.26 vs par · 104)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
QuarterfinalJ.RomanskiF.Bigdeli – P.CoenraetsOpen16-22.4-1.40-0.25
QuarterfinalJ.RomanskiD.Johnson – J.StasOpen16+16.7+1.04+1.38
QuarterfinalJ.RomanskiG.Polet – A.KaplanClosed16-8.3-0.52+0.69
QuarterfinalJ.RomanskiF.Bigdeli – P.CoenraetsOpen16-6.6-0.41-0.19
QuarterfinalJ.RomanskiG.Polet – A.KaplanOpen16-1.6-0.10+2.56
SemifinalJ.RomanskiM.Jacobus – E.WoldOpen16-22.0-1.38-1.44
SemifinalJ.RomanskiM.Passell – M.JacobusOpen16+1.0+0.06-0.50
SemifinalJ.RomanskiM.Jacobus – E.WoldOpen16+10.3+0.64+2.75
SemifinalJ.RomanskiM.Passell – M.JacobusOpen16-5.9-0.37+0.94
SemifinalJ.RomanskiM.Passell – E.WoldOpen16-21.0-1.31-1.25
FinalJ.RomanskiG.Lasserre – P.PoizatOpen16-4.8-0.30-1.19
FinalJ.RomanskiP.Grenthe – P.VanhoutteOpen16+14.0+0.88-1.25
FinalJ.RomanskiA.Levy – F.LeenhardtClosed16+16.9+1.06+0.50
FinalJ.RomanskiG.Lasserre – P.PoizatClosed0+0.0+0.00·
FinalJ.RomanskiG.Lasserre – P.PoizatClosed0+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
+14.0Semifinal🇺🇸 USA2573NT♥4-3+14
+12.0Quarterfinal🇧🇪 BELGIUM894♥♦J-1+12
+12.0Semifinal🇺🇸 USA2516♦♣2=+11
+11.7Final🇫🇷 FRANCE455♥♦A-3+13
+11.3Semifinal🇺🇸 USA2313NT♥3=+10
+10.3Semifinal🇺🇸 USA2734♠♥Q-1+12
+10.0Final🇫🇷 FRANCE474♦♥7+1+10
+7.6Quarterfinal🇧🇪 BELGIUM576♦x♣K-2+12
+7.3Final🇫🇷 FRANCE244♥♠9+2+11
+7.0Quarterfinal🇧🇪 BELGIUM453♣♠4-2+3
+7.0Semifinal🇺🇸 USA2784♠♦Q-3+11
+6.7Final🇫🇷 FRANCE534♥♦A=+3
+6.3Quarterfinal🇧🇪 BELGIUM323NT♠4+1+0
+6.3Semifinal🇺🇸 USA2504♦x♣A-2+9
+6.3Semifinal🇺🇸 USA2953NT♥J+1+10
+6.3Final🇫🇷 FRANCE273NT♦4=-1
+6.0Quarterfinal🇧🇪 BELGIUM743♥♦5=+6
+6.0Quarterfinal🇧🇪 BELGIUM834♠♥A-1+6
+6.0Semifinal🇺🇸 USA2213♦♦9+1+7
+6.0Semifinal🇺🇸 USA2223NT♦9-1+6
+5.7Semifinal🇺🇸 USA2104♠♥6-2+8
+5.7Final🇫🇷 FRANCE522♥♣5+1+1
+5.3Quarterfinal🇧🇪 BELGIUM674♥♦8=+0
+5.3Semifinal🇺🇸 USA283♥♦5=+0
+5.3Semifinal🇺🇸 USA2583NT♠Q-1+6
+5.3Final🇫🇷 FRANCE483NT♥J=+2
+5.3Final🇫🇷 FRANCE581NT♦A-1+5
+5.0Quarterfinal🇧🇪 BELGIUM435♥x♠A=+5
+4.7Quarterfinal🇧🇪 BELGIUM533♥♣2-2+5
+4.7Semifinal🇺🇸 USA2934♠♦Q-1-3
+4.3Quarterfinal🇧🇪 BELGIUM224♠♣Q-1+5
+4.3Quarterfinal🇧🇪 BELGIUM563NT♠A-3+6
+4.3Quarterfinal🇧🇪 BELGIUM623NT♠4+2-10
+4.3Final🇫🇷 FRANCE224♠♥T-1+12
+4.3Final🇫🇷 FRANCE513NT♠T-1+16
+3.7Quarterfinal🇧🇪 BELGIUM765♠♣4=-13
+3.7Quarterfinal🇧🇪 BELGIUM952♠♣Q=+6
+3.7Semifinal🇺🇸 USA2274♥♠4+1-11
+3.7Semifinal🇺🇸 USA2896♣♦J=+10
+3.3Quarterfinal🇧🇪 BELGIUM354♥♠K-1+5
+3.0Quarterfinal🇧🇪 BELGIUM265♦♠4+1+13
+3.0Quarterfinal🇧🇪 BELGIUM943♣-1+4
+3.0Semifinal🇺🇸 USA2913♠♥Q=+1
+3.0Semifinal🇺🇸 USA2924♠♥J+3-2
+3.0Final🇫🇷 FRANCE563♠♣3-2-1
+2.7Final🇫🇷 FRANCE593NT♦4+1-11
+2.6Quarterfinal🇧🇪 BELGIUM652♠♣T=+0
+2.3Semifinal🇺🇸 USA2681NT♦5-1+5
+2.0Semifinal🇺🇸 USA2114♠♣K+2+1
+2.0Semifinal🇺🇸 USA2624♥♦8=+0
+2.0Semifinal🇺🇸 USA2633♦♣A-2+6
+2.0Semifinal🇺🇸 USA2673NT♦5-3+9
+2.0Final🇫🇷 FRANCE383NT♥Q-2+6
+1.9Quarterfinal🇧🇪 BELGIUM472♠♣6+2+1
+1.9Quarterfinal🇧🇪 BELGIUM616♥x♠A-2+7
+1.7Semifinal🇺🇸 USA2712♠♦K-1+0
+1.7Final🇫🇷 FRANCE325♦♥K=+5
+1.7Final🇫🇷 FRANCE413♦♥8-2-1
+1.6Quarterfinal🇧🇪 BELGIUM444♥♦K+2-11
+1.6Quarterfinal🇧🇪 BELGIUM664♠♥6+2+11
+1.4Quarterfinal🇧🇪 BELGIUM204♠♣4+1+0
+1.4Quarterfinal🇧🇪 BELGIUM463♥♠A-1-2
+1.3Quarterfinal🇧🇪 BELGIUM494♠♦4+1-10
+1.3Semifinal🇺🇸 USA274♥♠6-1-1
+1.3Semifinal🇺🇸 USA2184♠♥J-2-1
+1.0Semifinal🇺🇸 USA263NT♠4+1+0
+1.0Semifinal🇺🇸 USA2811NT♦4=-1
+1.0Final🇫🇷 FRANCE173NT♣2+1+0
+0.9Quarterfinal🇧🇪 BELGIUM423♠♣K=-10
+0.7Quarterfinal🇧🇪 BELGIUM341NT♥4=-1
+0.7Quarterfinal🇧🇪 BELGIUM961NT♥3=+0
+0.7Semifinal🇺🇸 USA2152♠♦6=+0
+0.7Semifinal🇺🇸 USA2252♠♠9=+1
+0.7Semifinal🇺🇸 USA2544♠♦5=+1
+0.6Quarterfinal🇧🇪 BELGIUM254♥♣3+1+0
+0.6Quarterfinal🇧🇪 BELGIUM683♦♥A=+0
+0.6Quarterfinal🇧🇪 BELGIUM774♠♦3+1+1
+0.4Quarterfinal🇧🇪 BELGIUM174♣♥3-1+4
+0.4Quarterfinal🇧🇪 BELGIUM393NT♦2=+10
+0.3Quarterfinal🇧🇪 BELGIUM283NT♠J+1-1
+0.3Quarterfinal🇧🇪 BELGIUM853NT♥9+1+10
+0.3Quarterfinal🇧🇪 BELGIUM924♠♣J+2+11
+0.3Semifinal🇺🇸 USA2233NT♣4+2+0
+0.3Semifinal🇺🇸 USA2284♠♦T+1+0
+0.3Semifinal🇺🇸 USA2844♠♥J+1-13
+0.3Final🇫🇷 FRANCE364♠♦K+1-13
+0.3Final🇫🇷 FRANCE433NT♦3+2+0
+0.3Final🇫🇷 FRANCE614♥♦4+2+5
+0.1Quarterfinal🇧🇪 BELGIUM634♥♣6+1+0
+0.0Quarterfinal🇧🇪 BELGIUM303NT♦3+2+11
-0.0Quarterfinal🇧🇪 BELGIUM333NT♥J+1+0
+0.0Quarterfinal🇧🇪 BELGIUM514♥♠7+1+0
+0.0Quarterfinal🇧🇪 BELGIUM914♥♠8+1+0
+0.0Semifinal🇺🇸 USA214♥♦5=+3
+0.0Semifinal🇺🇸 USA234♠♠A=+0
+0.0Semifinal🇺🇸 USA2124♠♦J=+1
+0.0Semifinal🇺🇸 USA2824♥♠5+1+0
+0.0Final🇫🇷 FRANCE194♥♣4=+0
+0.0Final🇫🇷 FRANCE234♠♦3=+1
+0.0Final🇫🇷 FRANCE254♥♣7=-11
+0.0Final🇫🇷 FRANCE304♠♣4+1+0
+0.0Final🇫🇷 FRANCE314♥♣9=+0
-0.0Final🇫🇷 FRANCE354♥♦A+1+0
-0.0Final🇫🇷 FRANCE377NT♥3-1-17
-0.0Final🇫🇷 FRANCE403♠♥7-1-2
-0.0Final🇫🇷 FRANCE423♣♣4=+0
-0.0Final🇫🇷 FRANCE444♠♦K=+0
+0.0Final🇫🇷 FRANCE494♥♣Q=+1
+0.0Final🇫🇷 FRANCE504♥♠K+1+0
+0.0Final🇫🇷 FRANCE543NT♥J=-1
-0.1Quarterfinal🇧🇪 BELGIUM483♦♦4=+8
-0.1Quarterfinal🇧🇪 BELGIUM701♥♦K-1+2
-0.3Quarterfinal🇧🇪 BELGIUM213♦♣9-1-2
-0.3Quarterfinal🇧🇪 BELGIUM364♠♣T+1+13
-0.3Quarterfinal🇧🇪 BELGIUM504♠♣5+2+14
-0.3Semifinal🇺🇸 USA2242♠x♥J-1+1
-0.3Semifinal🇺🇸 USA2301NT♠7=+0
-0.3Semifinal🇺🇸 USA2553NT♥J=-1
-0.3Semifinal🇺🇸 USA2662♥♣K=-5
-0.3Semifinal🇺🇸 USA2764♥♣7+1+0
-0.3Semifinal🇺🇸 USA2834♥♦K=-1
-0.6Quarterfinal🇧🇪 BELGIUM804♠♥8+1-4
-0.7Quarterfinal🇧🇪 BELGIUM404♠♥6=+0
-0.7Semifinal🇺🇸 USA2524♥♦Q+2+13
-0.7Semifinal🇺🇸 USA2564♠♥3=+1
-0.7Final🇫🇷 FRANCE183NT♥3+1+0
-0.7Final🇫🇷 FRANCE291♠♠J+1+0
-0.7Final🇫🇷 FRANCE624♠♣2-1+2
-0.9Quarterfinal🇧🇪 BELGIUM244♥♦J=-1
-0.9Quarterfinal🇧🇪 BELGIUM553NT♦5+1-12
-1.0Quarterfinal🇧🇪 BELGIUM824♥x♠8-1+0
-1.0Semifinal🇺🇸 USA2323NT♠9+3-2
-1.0Semifinal🇺🇸 USA2533NT♣J-2-13
-1.0Semifinal🇺🇸 USA2691NT♥A=-1
-1.0Semifinal🇺🇸 USA2751NT♠9+1-1
-1.0Semifinal🇺🇸 USA2774♠♥A=-1
-1.0Semifinal🇺🇸 USA2794♠♠3+2-1
-1.0Final🇫🇷 FRANCE336♦♣T+1+2
-1.0Final🇫🇷 FRANCE643♣♥Q=-7
-1.3Quarterfinal🇧🇪 BELGIUM375♠♦A=+0
-1.3Quarterfinal🇧🇪 BELGIUM903♠♦8-2-9
-1.4Quarterfinal🇧🇪 BELGIUM384♠x♥T-1+0
-1.6Quarterfinal🇧🇪 BELGIUM276♦♦9-1-11
-1.7Quarterfinal🇧🇪 BELGIUM412♠♦9=+1
-1.7Quarterfinal🇧🇪 BELGIUM643♦♣9-2+11
-1.7Semifinal🇺🇸 USA2173NT♦9=-2
-1.7Final🇫🇷 FRANCE603♠♥A=+7
-1.7Final🇫🇷 FRANCE633♦♠7-1-5
-1.9Quarterfinal🇧🇪 BELGIUM184♥♦J=+0
-2.0Quarterfinal🇧🇪 BELGIUM752♠♣K+1+7
-2.0Semifinal🇺🇸 USA2723♠♦T-1-4
-2.0Final🇫🇷 FRANCE552♠♣3-2-7
-2.3Quarterfinal🇧🇪 BELGIUM814♠♣K+2-11
-2.3Semifinal🇺🇸 USA2701NT♦6+1+0
-2.6Quarterfinal🇧🇪 BELGIUM602NT♥8=-1
-2.6Quarterfinal🇧🇪 BELGIUM723NT♠J=+2
-2.7Semifinal🇺🇸 USA2644♠♥A=+1
-2.7Semifinal🇺🇸 USA2855♦x♦8-1-2
-2.9Quarterfinal🇧🇪 BELGIUM784♥♠K=+1
-3.0Quarterfinal🇧🇪 BELGIUM593NT♦8=+0
-3.0Semifinal🇺🇸 USA2602♠♥7=+0
-3.3Semifinal🇺🇸 USA223NT♥2-2-8
-3.3Semifinal🇺🇸 USA252♠♦2-1-5
-3.3Semifinal🇺🇸 USA2202♠♣4-1-6
-3.3Semifinal🇺🇸 USA2884♠♦K-3-2
-3.4Quarterfinal🇧🇪 BELGIUM584♥♦2=-1
-3.6Quarterfinal🇧🇪 BELGIUM733NT♥T-1+2
-3.7Quarterfinal🇧🇪 BELGIUM794♠♦K=+0
-3.7Semifinal🇺🇸 USA2144♠♠6+1+0
-3.7Semifinal🇺🇸 USA2944♠♣6+1+0
-3.7Final🇫🇷 FRANCE214♠♥5+2-13
-4.0Quarterfinal🇧🇪 BELGIUM872♠♥A+2-1
-4.0Semifinal🇺🇸 USA2164♠♥6=-3
-4.0Final🇫🇷 FRANCE344♠♦5=-11
-4.0Final🇫🇷 FRANCE573NT♠3=+0
-4.3Quarterfinal🇧🇪 BELGIUM843NT♦4+3+13
-4.3Semifinal🇺🇸 USA2863♦♠9-1-5
-4.3Final🇫🇷 FRANCE264♥♣K-2-8
-4.3Final🇫🇷 FRANCE393♥♠A-3-4
-4.6Quarterfinal🇧🇪 BELGIUM294♥♠10=+0
-4.7Quarterfinal🇧🇪 BELGIUM884♠♦K=+0
-4.7Quarterfinal🇧🇪 BELGIUM934♠♦Q-1+5
-5.0Semifinal🇺🇸 USA2135♥x♠4=-5
-5.0Semifinal🇺🇸 USA2591NT♦Q-3-1
-5.1Quarterfinal🇧🇪 BELGIUM312♦♣J+3-10
-5.3Quarterfinal🇧🇪 BELGIUM543NT♠Q=+0
-5.3Quarterfinal🇧🇪 BELGIUM861NT♣2-1-5
-5.3Semifinal🇺🇸 USA2262♥♠Q=+0
-5.3Semifinal🇺🇸 USA2803♠♦K-2+0
-5.4Quarterfinal🇧🇪 BELGIUM712♠♣Q=-6
-6.1Quarterfinal🇧🇪 BELGIUM693♣♥8-1-12
-6.7Semifinal🇺🇸 USA2651♠x♣K-1-8
-7.3Semifinal🇺🇸 USA2495♠x♦K-1+0
-7.7Semifinal🇺🇸 USA2903NT♣5+1-4
-8.0Semifinal🇺🇸 USA2194♠♥A=-11
-8.0Semifinal🇺🇸 USA2873♠♣8-1+9
-8.0Final🇫🇷 FRANCE205♦x♥A-3-4
-8.0Final🇫🇷 FRANCE284♥♦K-2-11
-8.0Final🇫🇷 FRANCE465♥x♠A-2-5
-8.3Semifinal🇺🇸 USA2744♠♣Q=-1
-8.7Semifinal🇺🇸 USA293NT♠K+2-4
-8.7Semifinal🇺🇸 USA2293NT♥Q=+0
-10.0Semifinal🇺🇸 USA243♥♠Q+1-10
-11.3Quarterfinal🇧🇪 BELGIUM235♦x♠Q-2-12
-11.3Semifinal🇺🇸 USA2613NT♥9=-3
-13.0Quarterfinal🇧🇪 BELGIUM197♠♠4=+0
-13.0Semifinal🇺🇸 USA2967NT♠9-1-17
-15.3Quarterfinal🇧🇪 BELGIUM525♦x♥A-4-10