🇵🇱 KOWALCZYK Ireneusz · POLAND

1rank
+148.7Butler · 208 bds
+0.71per board
±4.1swing
+0.48vs par /bd · #30/111
+0.81adjusted /bd
Butler per round: 31 13.8 -10.8 28.6 19 20.7 3.6 -3.6 -4.8 -9.5 31.6 25.1 4by round

vs par split: bidding +0.31 · play +0.52

Strength of schedule: opponents averaged +0.10/bd (a tough draw) → opponent-adjusted +0.81/bd

Card play — on target: opening leads 78.6% #61 of 110 · declarer play 77.3% #32 of 111 · defence 87.9% #34 of 111

Card play by contract type — on target
vs NTvs a suit
Opening leads66.7% (9)81.8% (33)
Declarer play86.7% (15)72.4% (29)
Defence88.0% (25)87.8% (74)

Opening leads by suit led: ♠ 66.7% (15) · ♥ 80.0% (5) · ♦ 100.0% (8) · ♣ 78.6% (14)

vs par by strain: NT +0.59 (59) · a suit +0.46 (148)

vs par by level: part-score +0.56 (81) · game +0.47 (114) · slam +0.42 (12)

By role: declaring +0.62/bd (-1.85 vs par · 102) · defending +0.81/bd (+2.72 vs par · 106)

By vulnerability: vulnerable +0.79/bd (-0.09 vs par · 104) · not vulnerable +0.64/bd (+1.04 vs par · 104)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1R.KierznowskiJ.Hand – P.HandClosed16+31.0+1.94+0.69
Round 3R.KierznowskiS.Moller – P.LundClosed16+13.8+0.86+1.06
Round 5R.KierznowskiE.Basaran – F.FalayOpen16-10.8-0.68+2.88
Round 6R.KierznowskiB.Strater – U.KratzOpen16+28.6+1.79+1.75
Round 7R.KierznowskiD.Price – C.SimpsonOpen16+19.0+1.19+1.06
Round 8R.KierznowskiJ.Eichholzer – H.ObermairOpen16+20.7+1.29+2.38
Round 9R.KierznowskiJ.Sveindal – E.RynningClosed16+3.6+0.23-0.62
Round 11R.KierznowskiH.Hallen – B.DahlbergOpen16-3.6-0.23-1.38
Round 13R.KierznowskiR.Cambiaghi – A.FrancoClosed16-4.8-0.30-1.31
Round 15R.KierznowskiO.Janssens – W.BoegemOpen16-9.5-0.59-2.44
Round 16R.KierznowskiH.Boesiger – W.SpenglerOpen16+31.6+1.98-0.94
Round 17R.KierznowskiG.Lessells – D.HoulihanOpen16+25.1+1.57+3.00
Round 19R.KierznowskiJ.Simm – J.LinnamagiClosed16+4.0+0.25+0.06

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
+12.7Round 17🇮🇪 IRELAND144♠x♣9-4+14
+11.9Round 3🇩🇰 DENMARK46♠♦A=+13
+11.7Round 6🇩🇪 GERMANY26♠♦2=+0
+11.1Round 8🇦🇹 AUSTRIA73♥x♦Q-2+15
+10.7Round 3🇩🇰 DENMARK134♠♣A-1+12
+10.6Round 7🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND45♥♠A-1+7
+10.3Round 15🇳🇱 NETHERLANDS66♠♣6-1+11
+9.5Round 1🏴󠁧󠁢󠁷󠁬󠁳󠁿 WALES62NT♣Q-4+11
+8.9Round 17🇮🇪 IRELAND134♠♦6=+0
+8.8Round 1🏴󠁧󠁢󠁷󠁬󠁳󠁿 WALES124♠♣4-1+10
+8.5Round 16🇨🇭 SWITZERLAND91♥x♦Q-3+9
+8.4Round 1🏴󠁧󠁢󠁷󠁬󠁳󠁿 WALES154♠♦10+2+5
+8.4Round 16🇨🇭 SWITZERLAND33♥♦2+1+8
+8.2Round 19🇪🇪 ESTONIA113NT♦6-1+10
+8.1Round 1🏴󠁧󠁢󠁷󠁬󠁳󠁿 WALES56♦♥7=-2
+7.7Round 6🇩🇪 GERMANY155♣♠J+1+2
+7.6Round 9🇳🇴 NORWAY83NT♥+3+3
+7.4Round 8🇦🇹 AUSTRIA94♠♦5-2+13
+7.2Round 7🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND113♥x♣4-2+5
+5.8Round 11🇸🇪 SWEDEN83NT♠8-2+11
+5.3Round 3🇩🇰 DENMARK104♠♦10+1+0
+5.0Round 16🇨🇭 SWITZERLAND122♠♣=+0
+4.8Round 8🇦🇹 AUSTRIA52♥♣A+1+1
+4.8Round 16🇨🇭 SWITZERLAND134♠x♠A-1+8
+4.7Round 5🇹🇷 TURKEY24♣♥K-1+5
+4.7Round 9🇳🇴 NORWAY54♥♠6-1+11
+4.4Round 5🇹🇷 TURKEY154♥♣6-1+12
+4.3Round 6🇩🇪 GERMANY143NT♣Q-1+10
+4.3Round 11🇸🇪 SWEDEN123♦♥8-2+2
+4.3Round 13🇮🇹 ITALY123NT♥2-1+5
+4.1Round 1🏴󠁧󠁢󠁷󠁬󠁳󠁿 WALES43NT♦10+1+1
+3.8Round 6🇩🇪 GERMANY166♦x♦-4+12
+3.8Round 8🇦🇹 AUSTRIA43♥♣8-1+6
+3.8Round 11🇸🇪 SWEDEN153NT♥J-2+7
+3.7Round 8🇦🇹 AUSTRIA134♥x♣Q-1+8
+3.7Round 15🇳🇱 NETHERLANDS146♣♦3=-11
+3.7Round 17🇮🇪 IRELAND93NT♣2=-1
+3.6Round 3🇩🇰 DENMARK123NT♥3-4+3
+3.5Round 6🇩🇪 GERMANY112♣♠K-1+5
+3.5Round 9🇳🇴 NORWAY14♠♥2=-1
+3.5Round 16🇨🇭 SWITZERLAND11NT♥5-3+2
+3.5Round 17🇮🇪 IRELAND22♥♠10=+9
+3.5Round 19🇪🇪 ESTONIA23♥♠K+1+2
+3.5Round 19🇪🇪 ESTONIA92♠♥+3+2
+3.4Round 8🇦🇹 AUSTRIA24♠♣A+1+8
+3.4Round 16🇨🇭 SWITZERLAND142♥♠K-1+4
+3.2Round 7🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND153♥♦3=+0
+3.2Round 13🇮🇹 ITALY163NT♥6+1+1
+3.1Round 11🇸🇪 SWEDEN43♠♥A-2-9
+3.0Round 19🇪🇪 ESTONIA14♠♦A=+0
+3.0Round 19🇪🇪 ESTONIA84♠x♥A-1+0
+2.9Round 11🇸🇪 SWEDEN132♥♥2=+1
+2.8Round 8🇦🇹 AUSTRIA163NT♠3=-1
+2.8Round 15🇳🇱 NETHERLANDS122♠♥6+2+2
+2.7Round 13🇮🇹 ITALY131NT♦Q-1+11
+2.5Round 7🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND143♥♠A-1+5
+2.5Round 9🇳🇴 NORWAY102♦♣Q+1+0
+2.4Round 8🇦🇹 AUSTRIA152♥♦5=-1
+2.4Round 13🇮🇹 ITALY82NT♠K=+1
+2.3Round 7🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND134♠♣K-1-3
+2.2Round 6🇩🇪 GERMANY55♦♠Q+1+11
+2.2Round 8🇦🇹 AUSTRIA82NT♠K+1+6
+2.2Round 16🇨🇭 SWITZERLAND104♠♥K+2-13
+2.1Round 6🇩🇪 GERMANY84♥♠2-2-8
+1.8Round 6🇩🇪 GERMANY131NT♥2+3-9
+1.8Round 11🇸🇪 SWEDEN112♥♣2=+0
+1.8Round 13🇮🇹 ITALY74♥♦+1+0
+1.8Round 17🇮🇪 IRELAND13♦♠4+3-6
+1.7Round 6🇩🇪 GERMANY63♦♣A-1+2
+1.7Round 6🇩🇪 GERMANY92♠♦Q=+0
+1.6Round 9🇳🇴 NORWAY61NT♣J-1+3
+1.6Round 16🇨🇭 SWITZERLAND25♠♥A=+0
+1.5Round 9🇳🇴 NORWAY34♠♦3=+6
+1.5Round 9🇳🇴 NORWAY44♥♦8+1+0
+1.5Round 19🇪🇪 ESTONIA163NT♦+1+0
+1.4Round 5🇹🇷 TURKEY124♥♦5+2+13
+1.4Round 8🇦🇹 AUSTRIA115♣♥=+0
+1.4Round 17🇮🇪 IRELAND82♠♦2-1+8
+1.4Round 17🇮🇪 IRELAND125♦♣4+1+13
+1.3Round 3🇩🇰 DENMARK23NT♥6+2+0
+1.3Round 7🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND164♥♠10+1+0
+1.3Round 13🇮🇹 ITALY64♠♥A+1+0
+1.3Round 16🇨🇭 SWITZERLAND73♦♥K=+0
+1.3Round 17🇮🇪 IRELAND61NT♣10+2+0
+1.2Round 5🇹🇷 TURKEY74♠♥3=+3
+1.2Round 6🇩🇪 GERMANY73NT♥2=+0
+1.2Round 15🇳🇱 NETHERLANDS153♣♥Q=+5
+1.1Round 1🏴󠁧󠁢󠁷󠁬󠁳󠁿 WALES32♦♠A+2+0
+1.1Round 7🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND31NT♠4-1-1
+1.1Round 9🇳🇴 NORWAY154♠♥A=+0
+1.1Round 16🇨🇭 SWITZERLAND44♥♣+2-12
+1.1Round 17🇮🇪 IRELAND32♠♦3+2+6
+1.0Round 15🇳🇱 NETHERLANDS103NT♥3+3-12
+1.0Round 17🇮🇪 IRELAND51NT♣K=-1
+0.9Round 5🇹🇷 TURKEY81NT♣6=+0
+0.9Round 11🇸🇪 SWEDEN22♦♥K-3+5
+0.8Round 7🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND53NT♠5+2+13
+0.8Round 7🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND103NT♥4-2-2
+0.8Round 7🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND121NT♦2+2-6
+0.8Round 8🇦🇹 AUSTRIA144♥♠10+1+11
+0.7Round 5🇹🇷 TURKEY104♥♣A+2+13
+0.7Round 7🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND83NT♣6+1+0
+0.7Round 16🇨🇭 SWITZERLAND83NT♥10+3-10
+0.6Round 9🇳🇴 NORWAY124♥♦K-1+5
+0.6Round 11🇸🇪 SWEDEN71♥x♦K-2+4
+0.6Round 16🇨🇭 SWITZERLAND63NT♠+1+0
+0.5Round 19🇪🇪 ESTONIA44♠♣A+2+13
+0.4Round 3🇩🇰 DENMARK33NT♥8+2+0
+0.4Round 13🇮🇹 ITALY14♠♥A-2+5
+0.4Round 16🇨🇭 SWITZERLAND154♥♣K+1+0
+0.4Round 19🇪🇪 ESTONIA52♥♣-2+5
+0.4Round 19🇪🇪 ESTONIA134NT♥+1+0
+0.3Round 1🏴󠁧󠁢󠁷󠁬󠁳󠁿 WALES102♠♣5=+10
+0.3Round 3🇩🇰 DENMARK144♥♣J+1+14
+0.3Round 5🇹🇷 TURKEY64♥♠5+2+11
+0.1Round 3🇩🇰 DENMARK163NT♥6=+0
+0.1Round 13🇮🇹 ITALY105♥♠2+1-3
+0.1Round 17🇮🇪 IRELAND152♦♥A=+0
+0.0Round 1🏴󠁧󠁢󠁷󠁬󠁳󠁿 WALES164♠♣9=-1
+0.0Round 13🇮🇹 ITALY35♣♦A-2-6
-0.1Round 3🇩🇰 DENMARK62NT♣7=+0
-0.1Round 11🇸🇪 SWEDEN62♠♥6-1-6
-0.1Round 19🇪🇪 ESTONIA143NT♣=+0
-0.2Round 5🇹🇷 TURKEY114♠♣A+1+11
-0.2Round 13🇮🇹 ITALY45♣♥K=+0
-0.2Round 15🇳🇱 NETHERLANDS113NT♠10+3+11
-0.2Round 19🇪🇪 ESTONIA103♦♥+1+0
-0.2Round 19🇪🇪 ESTONIA121NT♠3+2+6
-0.3Round 16🇨🇭 SWITZERLAND112♥♠9=+1
-0.3Round 17🇮🇪 IRELAND163NT♣Q-1+10
-0.4Round 1🏴󠁧󠁢󠁷󠁬󠁳󠁿 WALES92♠♦Q=-6
-0.4Round 6🇩🇪 GERMANY101NT♠A-1+1
-0.4Round 7🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND62♥♦A=-1
-0.4Round 15🇳🇱 NETHERLANDS33♦♠K=+0
-0.4Round 15🇳🇱 NETHERLANDS84♠♥A=-1
-0.4Round 17🇮🇪 IRELAND103NT♥6+3+12
-0.4Round 19🇪🇪 ESTONIA34♠♦A=+0
-0.5Round 8🇦🇹 AUSTRIA104♠♦Q+1+0
-0.5Round 13🇮🇹 ITALY114♥♣=-1
-0.6Round 1🏴󠁧󠁢󠁷󠁬󠁳󠁿 WALES22NT♠5+1+1
-0.6Round 1🏴󠁧󠁢󠁷󠁬󠁳󠁿 WALES72♠♣Q+1-1
-0.7Round 1🏴󠁧󠁢󠁷󠁬󠁳󠁿 WALES11NT♥Q=-1
-0.7Round 5🇹🇷 TURKEY53♥♠J+1+1
-0.7Round 11🇸🇪 SWEDEN51NT♦10=+0
-0.8Round 3🇩🇰 DENMARK81NT♥5=+1
-1.0Round 1🏴󠁧󠁢󠁷󠁬󠁳󠁿 WALES135♣♦K=-9
-1.1Round 3🇩🇰 DENMARK54♠♦8=+0
-1.1Round 9🇳🇴 NORWAY93NT♥-3-2
-1.1Round 9🇳🇴 NORWAY113♥♦+1-7
-1.2Round 5🇹🇷 TURKEY14♥♣2+1+4
-1.3Round 1🏴󠁧󠁢󠁷󠁬󠁳󠁿 WALES112♥♦A+1+0
-1.3Round 6🇩🇪 GERMANY123♦♠3-1+0
-1.5Round 3🇩🇰 DENMARK112♠♦K-1-4
-1.5Round 15🇳🇱 NETHERLANDS93NT♦K-1-5
-1.8Round 1🏴󠁧󠁢󠁷󠁬󠁳󠁿 WALES143♥♠5-1-5
-1.8Round 11🇸🇪 SWEDEN34♠♣2-1+0
-1.8Round 13🇮🇹 ITALY92♠♦10-1-4
-1.8Round 17🇮🇪 IRELAND75♥♠8=-4
-1.9Round 5🇹🇷 TURKEY95♣x♠K-2-5
-1.9Round 5🇹🇷 TURKEY161♠♣10+1+0
-1.9Round 9🇳🇴 NORWAY144♠♦A=-7
-2.1Round 3🇩🇰 DENMARK13♠♠4=+0
-2.2Round 5🇹🇷 TURKEY144♠♣2=+0
-2.3Round 7🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND76NT♠5=+13
-2.3Round 8🇦🇹 AUSTRIA121NT♣8-2-11
-2.3Round 11🇸🇪 SWEDEN105♦♥K-1-12
-2.3Round 15🇳🇱 NETHERLANDS24♠♣A=+0
-2.3Round 15🇳🇱 NETHERLANDS44♠♥10-2-8
-2.4Round 5🇹🇷 TURKEY33NT♥K-1-10
-2.4Round 11🇸🇪 SWEDEN14♠♥5-1-5
-2.5Round 15🇳🇱 NETHERLANDS163♥♦7-2-2
-2.6Round 7🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND13♦♣8=+0
-2.6Round 11🇸🇪 SWEDEN161NT♠4+2-1
-2.6Round 15🇳🇱 NETHERLANDS14♠x♠5-1-8
-2.6Round 17🇮🇪 IRELAND4Pass-4
-2.7Round 6🇩🇪 GERMANY31NT♦2-2+0
-2.8Round 9🇳🇴 NORWAY73♥♦K+1-10
-2.8Round 13🇮🇹 ITALY143NT♦+4-14
-2.9Round 1🏴󠁧󠁢󠁷󠁬󠁳󠁿 WALES84♣♥6-1-2
-2.9Round 19🇪🇪 ESTONIA73NT♠Q-2-13
-3.1Round 9🇳🇴 NORWAY164♥♦A+1+0
-3.1Round 16🇨🇭 SWITZERLAND164♥x♥K-1-6
-3.2Round 15🇳🇱 NETHERLANDS134♥♠6+1-1
-3.3Round 3🇩🇰 DENMARK155♠x♥K-2-7
-3.3Round 15🇳🇱 NETHERLANDS74♥♠2-1-6
-3.4Round 6🇩🇪 GERMANY12♦♠8=+2
-3.4Round 7🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND95♠♥2=-13
-3.6Round 7🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND26♥♠A=+0
-3.8Round 13🇮🇹 ITALY54♠♣-1-6
-4.2Round 9🇳🇴 NORWAY23♦♣3=-11
-4.4Round 11🇸🇪 SWEDEN93NT♥5=-7
-4.7Round 8🇦🇹 AUSTRIA63♠♣Q-1-16
-4.9Round 5🇹🇷 TURKEY44♠♠2-1-6
-5.0Round 3🇩🇰 DENMARK73♥♠K=-7
-5.3Round 6🇩🇪 GERMANY44♥♦6=+0
-5.6Round 13🇮🇹 ITALY24♠♠5=-11
-5.9Round 3🇩🇰 DENMARK94♠♠=-8
-6.3Round 13🇮🇹 ITALY153NT♠K=+1
-6.5Round 16🇨🇭 SWITZERLAND53NT♦=-6
-6.5Round 19🇪🇪 ESTONIA65♠x♣9-1-7
-6.7Round 17🇮🇪 IRELAND114♠♥A=-8
-6.8Round 9🇳🇴 NORWAY136♠♦Q=+0
-7.0Round 8🇦🇹 AUSTRIA34♠♥J=-1
-8.6Round 8🇦🇹 AUSTRIA16♦♠8=+0
-9.0Round 5🇹🇷 TURKEY133NT♥J-1-6
-9.7Round 19🇪🇪 ESTONIA156♣♦-1-17
-9.8Round 15🇳🇱 NETHERLANDS56♦x♦7=-14
-12.5Round 11🇸🇪 SWEDEN144♠x♦K-5-12