🇵🇱 KOWALSKI Apolinary · POLAND

26rank
+20.3Butler · 96 bds
+0.21per board
±4.8swing
-0.33vs par /bd
+0.11adjusted /bd
Butler per round: 20.3 20.3 20.3 20.3 20.3 20.3by round

vs par split: bidding -0.77 · play +0.46

Strength of schedule: opponents averaged -0.10/bd (an easy draw) → opponent-adjusted +0.11/bd

Card play — on target: opening leads 80.0% · declarer play 75.7% · defence 89.5%

Card play by contract type — on target
vs NTvs a suit
Opening leads100.0% (1)75.0% (4)
Declarer play81.2% (16)71.4% (21)
Defence72.7% (11)96.3% (27)

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

vs par by strain: NT +0.09 (34) · a suit -0.53 (61)

vs par by level: part-score +1.91 (34) · game -1.25 (56) · slam -4.80 (5)

By role: declaring +0.87/bd (-1.76 vs par · 58) · defending -0.80/bd (+1.84 vs par · 38)

By vulnerability: vulnerable +0.48/bd (+0.50 vs par · 48) · not vulnerable -0.06/bd (-1.17 vs par · 48)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round of 16J.RomanskiP.Lavings – R.KrochmalikOpen16+16.1+1.01+1.25
Round of 16J.RomanskiP.Lavings – R.KrochmalikOpen16-20.0-1.25-1.94
Round of 16J.RomanskiW.Haughie – R.KlingerOpen16+48.0+3.00+1.69
Round of 16J.RomanskiG.Lorentz – S.BurgessOpen16+7.8+0.49-1.88
Round of 16J.RomanskiG.Lorentz – S.BurgessOpen16-25.5-1.59-1.25
Round of 16J.RomanskiG.Lorentz – S.BurgessOpen16-6.1-0.38+0.12

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
+13.7Round of 16🇦🇺 AUSTRALIA74♠x♥K=+7
+10.9Round of 16🇦🇺 AUSTRALIA424♠♥K=+10
+9.7Round of 16🇦🇺 AUSTRALIA753NT♥8=+7
+8.7Round of 16🇦🇺 AUSTRALIA463NT♠Q=+7
+8.6Round of 16🇦🇺 AUSTRALIA824♥♦5=+10
+8.2Round of 16🇦🇺 AUSTRALIA593NT♥2+2+1
+8.0Round of 16🇦🇺 AUSTRALIA403NT♥5+1+7
+6.8Round of 16🇦🇺 AUSTRALIA524♠♦3=-1
+6.7Round of 16🇦🇺 AUSTRALIA113♦♠10+2+7
+5.4Round of 16🇦🇺 AUSTRALIA397♣♦K=+0
+5.4Round of 16🇦🇺 AUSTRALIA473NT♦J-3+11
+5.2Round of 16🇦🇺 AUSTRALIA41NT♠Q-2+7
+5.1Round of 16🇦🇺 AUSTRALIA384♥♠Q=+0
+4.7Round of 16🇦🇺 AUSTRALIA433NT♠3+1+0
+4.7Round of 16🇦🇺 AUSTRALIA493♦♣2+1+7
+4.7Round of 16🇦🇺 AUSTRALIA505♦♣K-1+10
+4.1Round of 16🇦🇺 AUSTRALIA284♣♠8=+7
+3.9Round of 16🇦🇺 AUSTRALIA373NT♣3-2+6
+3.9Round of 16🇦🇺 AUSTRALIA645♦♠A=-11
+3.5Round of 16🇦🇺 AUSTRALIA724♠♣K-2+6
+3.4Round of 16🇦🇺 AUSTRALIA765♦♠A=+0
+3.3Round of 16🇦🇺 AUSTRALIA194♥♠3+1+0
+3.2Round of 16🇦🇺 AUSTRALIA211NT♠3=+5
+3.2Round of 16🇦🇺 AUSTRALIA633♣♥2=+6
+3.1Round of 16🇦🇺 AUSTRALIA186NT♥8+1-13
+2.9Round of 16🇦🇺 AUSTRALIA961NT♥2+4+3
+2.7Round of 16🇦🇺 AUSTRALIA932♠♥9-2+3
+2.6Round of 16🇦🇺 AUSTRALIA33♣♥3+1+9
+2.4Round of 16🇦🇺 AUSTRALIA733♠♥8+2+9
+2.3Round of 16🇦🇺 AUSTRALIA614♥♠10+1+0
+2.0Round of 16🇦🇺 AUSTRALIA353♣♠Q+1+1
+2.0Round of 16🇦🇺 AUSTRALIA742♠♥K=+6
+1.6Round of 16🇦🇺 AUSTRALIA144♠♦K=+0
+1.6Round of 16🇦🇺 AUSTRALIA832♥♥5=+0
+1.6Round of 16🇦🇺 AUSTRALIA863NT♥Q=+0
+1.5Round of 16🇦🇺 AUSTRALIA332♠♦7=+0
+1.4Round of 16🇦🇺 AUSTRALIA484♥♠10+1+1
+1.3Round of 16🇦🇺 AUSTRALIA84♥♦A-2+5
+1.3Round of 16🇦🇺 AUSTRALIA842NT♠7=+0
+1.1Round of 16🇦🇺 AUSTRALIA64♠♥A=-3
+1.0Round of 16🇦🇺 AUSTRALIA92♥♣A-1+1
+1.0Round of 16🇦🇺 AUSTRALIA923NT♥3=+0
+0.9Round of 16🇦🇺 AUSTRALIA855♦♣A-1+5
+0.9Round of 16🇦🇺 AUSTRALIA874♣♦A=+0
+0.7Round of 16🇦🇺 AUSTRALIA623NT♥Q+3-11
+0.5Round of 16🇦🇺 AUSTRALIA123NT♥J+1+0
+0.5Round of 16🇦🇺 AUSTRALIA662♠♣2-1-2
+0.4Round of 16🇦🇺 AUSTRALIA201NT♦A+1+11
+0.4Round of 16🇦🇺 AUSTRALIA293NT♣K+1+0
+0.3Round of 16🇦🇺 AUSTRALIA151NT♦Q=+2
+0.2Round of 16🇦🇺 AUSTRALIA703NT♣J=-1
+0.2Round of 16🇦🇺 AUSTRALIA892♠♦A+1-6
+0.1Round of 16🇦🇺 AUSTRALIA265♥♦10=+1
+0.0Round of 16🇦🇺 AUSTRALIA1Pass-3
-0.3Round of 16🇦🇺 AUSTRALIA514♥♦A=-8
-0.4Round of 16🇦🇺 AUSTRALIA221NT♥9+2+10
-0.4Round of 16🇦🇺 AUSTRALIA692♥♠K+1+0
-0.5Round of 16🇦🇺 AUSTRALIA344♠♣7+2-12
-0.7Round of 16🇦🇺 AUSTRALIA324♠♦A+1+0
-0.7Round of 16🇦🇺 AUSTRALIA414♥♣J+1-4
-0.8Round of 16🇦🇺 AUSTRALIA164♠♥9=+0
-0.9Round of 16🇦🇺 AUSTRALIA104♥♦Q=+0
-1.0Round of 16🇦🇺 AUSTRALIA794♥♣K=-1
-1.2Round of 16🇦🇺 AUSTRALIA444♠♥4+1-1
-1.4Round of 16🇦🇺 AUSTRALIA254♠♣K-1-5
-1.5Round of 16🇦🇺 AUSTRALIA603NT♦7+4+9
-1.9Round of 16🇦🇺 AUSTRALIA551NT♠K-1+0
-1.9Round of 16🇦🇺 AUSTRALIA912♠♣K=+0
-2.1Round of 16🇦🇺 AUSTRALIA53NT♥3+1-12
-2.1Round of 16🇦🇺 AUSTRALIA584♥♣6=+1
-2.3Round of 16🇦🇺 AUSTRALIA274♥♦K+3-2
-2.5Round of 16🇦🇺 AUSTRALIA681NT♠4+1+0
-2.5Round of 16🇦🇺 AUSTRALIA882♠♦7-1+1
-2.7Round of 16🇦🇺 AUSTRALIA451NT♣K-2+7
-2.9Round of 16🇦🇺 AUSTRALIA243♦♣6-2-5
-3.5Round of 16🇦🇺 AUSTRALIA714♠♦A-1-12
-3.5Round of 16🇦🇺 AUSTRALIA904♥♣A-1-6
-3.6Round of 16🇦🇺 AUSTRALIA534♠♣9-1-6
-3.8Round of 16🇦🇺 AUSTRALIA233NT♥2-1-6
-3.8Round of 16🇦🇺 AUSTRALIA573♦♠A-1-10
-3.9Round of 16🇦🇺 AUSTRALIA131NT♣10+2+0
-3.9Round of 16🇦🇺 AUSTRALIA362NT♣4-1-6
-4.2Round of 16🇦🇺 AUSTRALIA656♠♣2=+0
-4.5Round of 16🇦🇺 AUSTRALIA783NT♣7=-7
-5.2Round of 16🇦🇺 AUSTRALIA814♠♥7+1+0
-5.3Round of 16🇦🇺 AUSTRALIA563NT♦8-1-10
-5.8Round of 16🇦🇺 AUSTRALIA303NT♦4-1-10
-5.8Round of 16🇦🇺 AUSTRALIA953♦♠K+1+0
-5.9Round of 16🇦🇺 AUSTRALIA314♥♠5-1-12
-6.8Round of 16🇦🇺 AUSTRALIA676♥♣Q-2-11
-8.2Round of 16🇦🇺 AUSTRALIA545♣♠K=-7
-8.9Round of 16🇦🇺 AUSTRALIA942♠♥10=-8
-10.2Round of 16🇦🇺 AUSTRALIA26♠♥5=+0
-10.8Round of 16🇦🇺 AUSTRALIA773NT♦7+1-10
-11.4Round of 16🇦🇺 AUSTRALIA174♠x♣2-2-12
-13.5Round of 16🇦🇺 AUSTRALIA803NTx♣3=-4