🇵🇱 DUFRAT Katarzyna · POLAND

39rank
+43.0Butler · 176 bds
+0.24per board
±4.3swing
+0.07vs par /bd · #51/97
+0.25adjusted /bd
Butler per round: -0.9 0.1 25.3 21.4 23.5 -11.1 3 -2.9 -2.4 -1.2 -11.8by round

vs par split: bidding +0.01 · play +0.06

Strength of schedule: opponents averaged +0.01/bd (an average draw) → opponent-adjusted +0.25/bd

Card play — on target: opening leads 75.7% #81 of 97 · declarer play 71.1% #54 of 97 · defence 84.3% #52 of 97

Card play by contract type — on target
vs NTvs a suit
Opening leads55.6% (9)82.1% (28)
Declarer play58.3% (12)76.9% (26)
Defence87.5% (16)83.6% (67)

Opening leads by suit led: ♠ 50.0% (8) · ♥ 90.9% (11) · ♦ 62.5% (8) · ♣ 90.0% (10)

vs par by strain: NT -0.54 (43) · a suit +0.26 (133)

vs par by level: part-score +1.09 (56) · game -0.35 (112) · slam -1.25 (8)

By role: declaring +0.20/bd (-2.39 vs par · 93) · defending +0.29/bd (+2.82 vs par · 83)

By vulnerability: vulnerable +0.49/bd (-0.23 vs par · 88) · not vulnerable -0.00/bd (+0.36 vs par · 88)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1J.ZmudaH.Sellami – A.DaldoulOpen16-0.9-0.06-0.81
Round 2J.ZmudaS.Jacob – S.HumphriesClosed16+0.1+0.01-0.81
Round 4J.ZmudaS.Paoluzi – I.SaccaviniClosed16+25.3+1.58+1.75
Round 5J.ZmudaK.Sanborn – L.DeasOpen16+21.4+1.34+2.44
Round 8J.ZmudaM.Malhas – M.Hamadeh AwwadClosed16+23.5+1.47+0.19
Round 9J.ZmudaL.Bilde – H.RasmussenOpen16-11.1-0.69-1.88
Round 10J.ZmudaC.Thorpe – I.DemmeClosed16+3.0+0.19+1.06
Round 11J.ZmudaS.Willard – B.CronierClosed16-2.9-0.18-0.06
Round 14J.ZmudaP.Liu – Y.LinOpen16-2.4-0.15-0.06
Round 16J.ZmudaK.Wenning – I.GromannClosed16-1.2-0.07-0.19
Round 17J.ZmudaL.Phelan – L.MitchellOpen16-11.8-0.74-0.88

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
+14.0Round 8🇵🇸 PALESTINE204NT♥2-3+14
+12.1Round 4🇮🇹 ITALY242♦x♠K-4+12
+9.7Round 16🇩🇪 GERMANY173NT♣J=+7
+9.4Round 10🇨🇦 CANADA294♥x♠A=+15
+9.3Round 5🇺🇸 USA103♣♠A+2+11
+9.3Round 5🇺🇸 USA157♥♦Q=+0
+8.8Round 4🇮🇹 ITALY203NT♦A-1+12
+8.1Round 8🇵🇸 PALESTINE304♥♦Q=+7
+7.3Round 17🇮🇪 IRELAND26♠♣J-1+17
+7.1Round 8🇵🇸 PALESTINE295♦♣Q=+3
+7.1Round 14🇹🇼 CHINESE TAIPEI276♦♠J=+0
+6.3Round 8🇵🇸 PALESTINE243NT♠9+2+1
+6.2Round 5🇺🇸 USA94♠♦5=+0
+6.2Round 11🇫🇷 FRANCE155♣♥A=-1
+6.0Round 2🇳🇿 NEW ZEALAND234♠♣3=+0
+6.0Round 4🇮🇹 ITALY226♣♦6-1+14
+5.9Round 1🇹🇳 TUNISIA74♥♣A+1+0
+5.7Round 8🇵🇸 PALESTINE213NT♥6=+0
+5.5Round 9🇩🇰 DENMARK103♦♥5=+10
+5.5Round 14🇹🇼 CHINESE TAIPEI282♠♣K-1+10
+5.1Round 2🇳🇿 NEW ZEALAND275♣♥A-2+11
+5.1Round 4🇮🇹 ITALY304♠♥8-3+2
+4.9Round 17🇮🇪 IRELAND144♠♣7-2+11
+4.7Round 16🇩🇪 GERMANY304♠x♣A+1+9
+4.6Round 11🇫🇷 FRANCE144♠♦J-1+10
+4.3Round 10🇨🇦 CANADA214♠♦A+1+0
+4.1Round 8🇵🇸 PALESTINE264♥♠A+1+0
+3.9Round 2🇳🇿 NEW ZEALAND184♥♦K=+3
+3.9Round 5🇺🇸 USA13♠♥3-1+10
+3.9Round 9🇩🇰 DENMARK152♥♠A=+0
+3.9Round 10🇨🇦 CANADA313NT♥A-1+10
+3.8Round 9🇩🇰 DENMARK123NT♥6=+0
+3.7Round 11🇫🇷 FRANCE61NT♣Q+2+10
+3.5Round 2🇳🇿 NEW ZEALAND312♣♦9=+6
+3.4Round 16🇩🇪 GERMANY183NT♣K-3+6
+3.4Round 17🇮🇪 IRELAND31NT♥J-1+12
+3.3Round 2🇳🇿 NEW ZEALAND214♠♣K-1-2
+3.3Round 10🇨🇦 CANADA284♦♥4=+0
+3.2Round 10🇨🇦 CANADA264♠♥J=+0
+3.0Round 11🇫🇷 FRANCE103♠♥5-3+9
+2.8Round 4🇮🇹 ITALY254♥♦8-1+0
+2.8Round 4🇮🇹 ITALY264♠♠4+2+1
+2.8Round 8🇵🇸 PALESTINE284♠♥4+2+11
+2.7Round 14🇹🇼 CHINESE TAIPEI194♠x♥3-1+2
+2.7Round 14🇹🇼 CHINESE TAIPEI243NT♥10=+0
+2.7Round 16🇩🇪 GERMANY192♠♣Q=+5
+2.5Round 1🇹🇳 TUNISIA153♥♠9-2+5
+2.4Round 1🇹🇳 TUNISIA144♥♦5=+0
+2.3Round 17🇮🇪 IRELAND94♠♥10-1+9
+2.2Round 5🇺🇸 USA44♥♦A-2+3
+2.2Round 14🇹🇼 CHINESE TAIPEI292♣♠5-1+0
+2.1Round 17🇮🇪 IRELAND51♠♥K+2+0
+2.1Round 17🇮🇪 IRELAND62♥♠K-1+5
+1.9Round 16🇩🇪 GERMANY312♣♠A+2+0
+1.8Round 16🇩🇪 GERMANY253NT♦2=-1
+1.7Round 4🇮🇹 ITALY194♠♦A-1+5
+1.6Round 1🇹🇳 TUNISIA51NT♠3+1+0
+1.5Round 2🇳🇿 NEW ZEALAND303NT♠5+2+2
+1.5Round 5🇺🇸 USA162♠♦K+2-6
+1.5Round 11🇫🇷 FRANCE124♥♦3+1+0
+1.5Round 14🇹🇼 CHINESE TAIPEI314♠♦A+1+8
+1.4Round 1🇹🇳 TUNISIA124NT♠5+2+1
+1.3Round 2🇳🇿 NEW ZEALAND284♥♦Q=+0
+1.3Round 5🇺🇸 USA133NT♥3+2+0
+1.3Round 8🇵🇸 PALESTINE184♥♠10+2-3
+1.3Round 9🇩🇰 DENMARK93♣♠7=+0
+1.3Round 10🇨🇦 CANADA194♠♦6+2+13
+1.2Round 2🇳🇿 NEW ZEALAND253♠♦A-2+15
+1.2Round 5🇺🇸 USA144♠♣Q+1+11
+1.2Round 9🇩🇰 DENMARK146♣♦J=-11
+1.1Round 4🇮🇹 ITALY284♠♠5+1+0
+1.1Round 5🇺🇸 USA65♠♦J=+0
+1.1Round 10🇨🇦 CANADA203NT♠Q+2+0
+1.0Round 10🇨🇦 CANADA245♥♠K-1+5
+1.0Round 16🇩🇪 GERMANY205♦♠K-1+6
+0.9Round 1🇹🇳 TUNISIA23NT♠5=-1
+0.9Round 11🇫🇷 FRANCE34♥♠5-1+10
+0.7Round 8🇵🇸 PALESTINE175♥♦Q=+0
+0.7Round 9🇩🇰 DENMARK65♣♥6+1-11
+0.6Round 11🇫🇷 FRANCE92♦♣5+1-1
+0.6Round 14🇹🇼 CHINESE TAIPEI252♠♣4=+0
+0.5Round 5🇺🇸 USA24♥♣Q+1+0
+0.5Round 8🇵🇸 PALESTINE192♥♠6-1+3
+0.4Round 1🇹🇳 TUNISIA111NT♠3+2-6
+0.3Round 1🇹🇳 TUNISIA14♥♠4+2-11
+0.3Round 11🇫🇷 FRANCE74♥♠7=+0
+0.2Round 8🇵🇸 PALESTINE224♥♦9+1+1
+0.1Round 2🇳🇿 NEW ZEALAND224♠♥5-1-10
+0.1Round 2🇳🇿 NEW ZEALAND264♥♣5+2-13
+0.1Round 4🇮🇹 ITALY174♠♣A-1+2
+0.1Round 4🇮🇹 ITALY314♠♣A=-1
+0.1Round 8🇵🇸 PALESTINE312♠♣K-2-1
+0.1Round 9🇩🇰 DENMARK73NT♠J=-1
+0.1Round 10🇨🇦 CANADA223NT♣J+2+13
+0.1Round 14🇹🇼 CHINESE TAIPEI184♠♥5=+0
-0.1Round 1🇹🇳 TUNISIA93♠♥A-2+0
-0.1Round 5🇺🇸 USA73NT♦7+3+13
-0.1Round 16🇩🇪 GERMANY213♣♠7-2-1
-0.2Round 17🇮🇪 IRELAND13NT♦9+1-1
-0.3Round 10🇨🇦 CANADA302♠♥4=-1
-0.3Round 17🇮🇪 IRELAND163♦♠7=+0
-0.4Round 11🇫🇷 FRANCE24♠♣10+1+0
-0.4Round 11🇫🇷 FRANCE131NT♦K+2-10
-0.4Round 17🇮🇪 IRELAND43NT♥5+3-13
-0.5Round 5🇺🇸 USA123♥♠4+1+6
-0.5Round 10🇨🇦 CANADA253NT♠2=+0
-0.5Round 17🇮🇪 IRELAND84♠♥K+1+0
-0.6Round 9🇩🇰 DENMARK24♠♦5=+1
-0.7Round 1🇹🇳 TUNISIA83♣♦5+1-1
-0.7Round 4🇮🇹 ITALY292♦♠5+2+0
-0.8Round 4🇮🇹 ITALY324♠♣8+1+0
-0.8Round 9🇩🇰 DENMARK54♠♣2=+0
-0.9Round 9🇩🇰 DENMARK116♦♠7+1-1
-0.9Round 14🇹🇼 CHINESE TAIPEI234♥♦2+1+0
-1.0Round 9🇩🇰 DENMARK33♥♦6-1+2
-1.1Round 1🇹🇳 TUNISIA33♣♥Q=+11
-1.1Round 2🇳🇿 NEW ZEALAND242♠♣5=-5
-1.2Round 2🇳🇿 NEW ZEALAND194♠x♥A-2+5
-1.2Round 14🇹🇼 CHINESE TAIPEI174♥♦9=+0
-1.2Round 16🇩🇪 GERMANY233♦♠5=+1
-1.2Round 16🇩🇪 GERMANY292♣♠4+1+0
-1.3Round 2🇳🇿 NEW ZEALAND321NT♣5=+1
-1.4Round 5🇺🇸 USA114♠♣7=+0
-1.4Round 14🇹🇼 CHINESE TAIPEI212♠♥K+1-1
-1.4Round 17🇮🇪 IRELAND74♠♦6+2-13
-1.5Round 4🇮🇹 ITALY183♥♦Q=-10
-1.5Round 5🇺🇸 USA33NT♠7+1+0
-1.5Round 14🇹🇼 CHINESE TAIPEI303♦♣5-1-4
-1.5Round 16🇩🇪 GERMANY242NT♥2-1-10
-1.7Round 16🇩🇪 GERMANY282♠♥J+3-2
-1.9Round 9🇩🇰 DENMARK82♠♥Q+1+0
-1.9Round 10🇨🇦 CANADA183♠♥5=-6
-2.0Round 17🇮🇪 IRELAND124♠♣6=+0
-2.2Round 1🇹🇳 TUNISIA162NT♠3-1+2
-2.2Round 17🇮🇪 IRELAND133NT♠6-1-5
-2.3Round 1🇹🇳 TUNISIA133NT♥5-1-11
-2.3Round 10🇨🇦 CANADA274♦♥4-1-8
-2.3Round 14🇹🇼 CHINESE TAIPEI324♠♥4=+1
-2.4Round 11🇫🇷 FRANCE115♦♣A-1+4
-2.4Round 16🇩🇪 GERMANY271NT♥A+3+6
-2.5Round 1🇹🇳 TUNISIA102♠♣3-1+1
-2.7Round 4🇮🇹 ITALY234♠♥6=-3
-2.9Round 1🇹🇳 TUNISIA44♥♦8=-3
-3.0Round 11🇫🇷 FRANCE13NT♦5-2-11
-3.1Round 11🇫🇷 FRANCE51NT♣10-1-6
-3.3Round 9🇩🇰 DENMARK162♠♥J=-6
-3.7Round 5🇺🇸 USA82♥♠8+2-2
-3.7Round 11🇫🇷 FRANCE83NT♥2-1-10
-4.2Round 2🇳🇿 NEW ZEALAND292♣♠10-2-3
-4.3Round 8🇵🇸 PALESTINE233♠x♥A-1-2
-4.5Round 1🇹🇳 TUNISIA64♠♦8+1+0
-4.5Round 9🇩🇰 DENMARK44♠♥2-2-8
-4.7Round 4🇮🇹 ITALY214♥♣7+1-1
-4.7Round 9🇩🇰 DENMARK14♠♠6=+0
-4.7Round 10🇨🇦 CANADA323NT♠5-1-5
-4.7Round 16🇩🇪 GERMANY224♥♦4-3-7
-4.9Round 4🇮🇹 ITALY274♠x♦A-1-5
-5.0Round 11🇫🇷 FRANCE164♠♥4-1-5
-5.3Round 8🇵🇸 PALESTINE254♥♥2-2-6
-5.3Round 14🇹🇼 CHINESE TAIPEI225♠♣4=-11
-5.7Round 2🇳🇿 NEW ZEALAND174♠♦6+2-11
-5.7Round 11🇫🇷 FRANCE43NT♠6+1+0
-5.7Round 14🇹🇼 CHINESE TAIPEI264♠♦A-1-6
-5.9Round 16🇩🇪 GERMANY324♥♦5-1-10
-6.1Round 10🇨🇦 CANADA175♣x♣A=-4
-6.1Round 17🇮🇪 IRELAND154♠♦3-2-13
-6.5Round 14🇹🇼 CHINESE TAIPEI203NT♥J=+0
-7.7Round 16🇩🇪 GERMANY263NT♦9-1-12
-7.9Round 5🇺🇸 USA53NT♠4=-7
-8.5Round 8🇵🇸 PALESTINE323NT♠7-2-11
-8.8Round 10🇨🇦 CANADA236♠♥A-1-15
-9.3Round 8🇵🇸 PALESTINE276♦♠2-1-14
-9.9Round 9🇩🇰 DENMARK134♥x♥3=-5
-10.0Round 17🇮🇪 IRELAND115♦♥K=-11
-10.8Round 17🇮🇪 IRELAND104♠♥K-1-12
-12.4Round 2🇳🇿 NEW ZEALAND203NT♠10-5-12