🇵🇱 SAKOWSKA Natalia · POLAND

87rank
-23.9Butler · 272 bds
-0.09per board
±4.6swing
-0.10vs par /bd · #78/138
-0.04adjusted /bd
Butler per round: 24.3 -16.9 1.4 7 30.4 16.7 -24.9 -32 22.5 -12.3 2.9 -17.1 -0.1 -12.5 -7.4 4 -9.9by round

vs par split: bidding -0.18 · play +0.07

Strength of schedule: opponents averaged +0.04/bd (an average draw) → opponent-adjusted -0.04/bd

Card play — on target: opening leads 81.8% #61 of 138 · declarer play 74.7% #71 of 138 · defence 86.6% #55 of 138

Card play by contract type — on target
vs NTvs a suit
Opening leads78.9% (19)83.0% (47)
Declarer play73.1% (26)75.5% (53)
Defence74.4% (39)92.0% (88)

Opening leads by suit led: ♠ 85.0% (20) · ♥ 82.4% (17) · ♦ 73.7% (19) · ♣ 90.0% (10)

vs par by strain: NT -0.76 (88) · a suit +0.20 (183)

vs par by level: part-score -0.31 (88) · game +0.04 (163) · slam -0.50 (20)

By role: declaring +0.16/bd (-2.71 vs par · 144) · defending -0.37/bd (+2.84 vs par · 128)

By vulnerability: vulnerable +0.05/bd (+0.18 vs par · 136) · not vulnerable -0.23/bd (-0.38 vs par · 136)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1P.ButrynM.Farhani Goncalves – A.TrabelsiOpen16+24.3+1.52+3.00
Round 3P.ButrynM.Barel – P.KatzOpen16-16.9-1.06-0.19
Round 4P.ButrynJ.Millington – B.JonesClosed16+1.4+0.09+1.06
Round 6P.ButrynJ.Zochowska – P.SchmidtOpen16+7.0+0.44-3.06
Round 7P.ButrynD.Hachem – A.KhedrOpen16+30.4+1.90+2.19
Round 9P.ButrynT.Dobbels – G.DauweOpen16+16.7+1.04+2.56
Round 10P.ButrynD.Von Arnim – H.HaeuslerOpen16-24.9-1.56-1.69
Round 11P.ButrynY.Chen – B.FuOpen16-32.0-2.00-1.56
Round 14P.ButrynK.Fan – P.TsaiOpen16+22.5+1.41+2.00
Round 15P.ButrynB.Dessi – L.CimaOpen16-12.3-0.77-1.62
Round 16P.ButrynM.Ionita – M.StegaroiuOpen16+2.9+0.18-1.12
Round 17P.ButrynC.Willenken – A.LinOpen16-17.1-1.07+1.06
Round 18P.ButrynS.Elabyari – MEKKY AMROpen16-0.1-0.01-0.19
Round 20P.ButrynL.Ferrero – E.Juchimowicz PuglieseClosed16-12.5-0.78+0.44
Round 21P.ButrynC.He – J.LuoClosed16-7.4-0.46-2.25
Round 22P.ButrynR.Khandelwal – H.KhandelwalClosed16+4.0+0.25-2.88
Round 23P.ButrynL.Travis – P.MarkeyClosed16-9.9-0.62+0.56

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
+12.4Round 1🇹🇳 TUNISIA56♦♠K=+15
+11.6Round 23🇦🇺 AUSTRALIA214♠♣6=+13
+9.8Round 20🇦🇷 ARGENTINA37♥♦Q-3+14
+9.4Round 22🇮🇳 INDIA116♥♠9=-11
+8.9Round 23🇦🇺 AUSTRALIA205♥♦8-3+10
+8.8Round 9🇧🇪 BELGIUM135♦♥5-2+13
+8.3Round 16🇷🇴 ROMANIA176♦♣A=+0
+8.3Round 21🇨🇦 CANADA294♠♣5=+10
+8.2Round 4🇳🇿 NEW ZEALAND224♥♦10=+7
+8.1Round 15🇮🇹 ITALY93NT♥4=+7
+8.0Round 1🇹🇳 TUNISIA15♣♠7-1+10
+8.0Round 6🇫🇷 FRANCE233NT♥4=-1
+7.7Round 6🇫🇷 FRANCE186NT♥5-2+11
+7.7Round 7🇪🇬 EGYPT133NT♣8-2+13
+7.5Round 1🇹🇳 TUNISIA25♦♠A-3+11
+7.4Round 7🇪🇬 EGYPT16♥♣A=+0
+7.4Round 14🇹🇼 CHINESE TAIPEI224♥♣10=+11
+7.4Round 21🇨🇦 CANADA214♥♣A-2+11
+7.3Round 17🇺🇸 USA256NT♦Q-1+14
+7.0Round 10🇩🇪 GERMANY324♠♥K=+0
+6.8Round 7🇪🇬 EGYPT165♦♦10-1+12
+6.6Round 20🇦🇷 ARGENTINA84♥♠9=+8
+6.6Round 23🇦🇺 AUSTRALIA225♦♥K=-1
+6.3Round 11🇨🇳 CHINA53NT♦3=-1
+6.2Round 3🇮🇱 ISRAEL154♥x♣Q-1+8
+6.1Round 4🇳🇿 NEW ZEALAND263NT♠7+1+0
+5.8Round 3🇮🇱 ISRAEL44♠♦A-1+6
+5.3Round 3🇮🇱 ISRAEL75♠♦K-1+13
+5.2Round 14🇹🇼 CHINESE TAIPEI181NT♠6=-1
+5.2Round 21🇨🇦 CANADA225♦♠8-2+13
+5.2Round 22🇮🇳 INDIA96♣♦5+1-13
+5.1Round 1🇹🇳 TUNISIA74♥♣A=+9
+5.1Round 18🇦🇪 UAE264♥♠3+1+0
+5.1Round 20🇦🇷 ARGENTINA142♦♥9-2+11
+5.0Round 10🇩🇪 GERMANY183NT♠9+4+10
+4.7Round 9🇧🇪 BELGIUM24♠♣2=+0
+4.7Round 15🇮🇹 ITALY102♥♦A+1+10
+4.7Round 17🇺🇸 USA243NT♥9+1+0
+4.5Round 10🇩🇪 GERMANY204♥♠K+1+13
+4.5Round 14🇹🇼 CHINESE TAIPEI233NT♠J=-1
+4.5Round 23🇦🇺 AUSTRALIA264♥♦9=+9
+4.4Round 4🇳🇿 NEW ZEALAND284♠♣5+2+11
+4.4Round 16🇷🇴 ROMANIA234♣♣3+1-10
+4.3Round 3🇮🇱 ISRAEL104♠♥6-2+8
+4.1Round 9🇧🇪 BELGIUM84♠♣K=+3
+4.0Round 6🇫🇷 FRANCE214♥♣A+1-13
+4.0Round 7🇪🇬 EGYPT102NT♦3-2+7
+4.0Round 16🇷🇴 ROMANIA293NT♦8=+10
+3.9Round 1🇹🇳 TUNISIA114♥♦10=+0
+3.9Round 11🇨🇳 CHINA22♥♥K-2+5
+3.9Round 17🇺🇸 USA2113NT♥J+2+0
+3.8Round 14🇹🇼 CHINESE TAIPEI172♥♦7+2+7
+3.8Round 15🇮🇹 ITALY53NT♠4+3+1
+3.7Round 4🇳🇿 NEW ZEALAND254♠♦A=+0
+3.7Round 7🇪🇬 EGYPT24♥♣J+2+14
+3.7Round 7🇪🇬 EGYPT32♦♥4-2+7
+3.7Round 7🇪🇬 EGYPT154♠x♦K-2+10
+3.6Round 1🇹🇳 TUNISIA143NT♥2+2+8
+3.6Round 9🇧🇪 BELGIUM142NT♠10+1+0
+3.6Round 23🇦🇺 AUSTRALIA294♠♥8+2+13
+3.5Round 14🇹🇼 CHINESE TAIPEI305♥♣4+1-1
+3.5Round 21🇨🇦 CANADA236NT♥4=-13
+3.4Round 18🇦🇪 UAE304♠♣5-1+4
+3.3Round 3🇮🇱 ISRAEL113NT♠10+2+2
+3.3Round 9🇧🇪 BELGIUM14♠x♦J-1+5
+3.2Round 9🇧🇪 BELGIUM62NT♥5-1+6
+3.1Round 1🇹🇳 TUNISIA32♠♥A-2+7
+3.1Round 15🇮🇹 ITALY163♠♥Q=+0
+3.1Round 21🇨🇦 CANADA274♠♥A+1+1
+3.0Round 15🇮🇹 ITALY113NT♠K-2+6
+2.8Round 17🇺🇸 USA2164♥x♥5-2+11
+2.7Round 14🇹🇼 CHINESE TAIPEI261NT♥A-2+8
+2.7Round 16🇷🇴 ROMANIA193♦♥5-1+4
+2.5Round 14🇹🇼 CHINESE TAIPEI253NT♥4=+11
+2.4Round 16🇷🇴 ROMANIA27Pass+3
+2.4Round 22🇮🇳 INDIA134♠♦A-2+2
+2.3Round 9🇧🇪 BELGIUM73♣♠J+1+1
+2.3Round 20🇦🇷 ARGENTINA112♥♦2=+6
+2.3Round 22🇮🇳 INDIA71NT♣K-3+5
+2.2Round 11🇨🇳 CHINA63♥♦K=+0
+2.2Round 22🇮🇳 INDIA11NT♥5-2+0
+2.1Round 18🇦🇪 UAE283NT♠6+1-1
+2.0Round 1🇹🇳 TUNISIA153♣♠2-2+0
+2.0Round 15🇮🇹 ITALY82♠♦3+1+0
+2.0Round 18🇦🇪 UAE294♠♥8-1+12
+2.0Round 18🇦🇪 UAE322♦♥2-2+11
+1.9Round 10🇩🇪 GERMANY273♥♠5=-4
+1.9Round 16🇷🇴 ROMANIA213♦♥Q+1+0
+1.9Round 16🇷🇴 ROMANIA222♠♥4+1+7
+1.9Round 22🇮🇳 INDIA33♠♣6+2-9
+1.9Round 22🇮🇳 INDIA84♥♣K-1+5
+1.8Round 4🇳🇿 NEW ZEALAND244♠♣9+3+2
+1.7Round 4🇳🇿 NEW ZEALAND182♥♦10+1+1
+1.5Round 20🇦🇷 ARGENTINA23NT♣2+2+0
+1.4Round 7🇪🇬 EGYPT64♥♦A+1+0
+1.4Round 9🇧🇪 BELGIUM164♥♦3=+0
+1.4Round 14🇹🇼 CHINESE TAIPEI292♠♥Q=+0
+1.4Round 14🇹🇼 CHINESE TAIPEI313♠♦2=+0
+1.3Round 6🇫🇷 FRANCE173NT♣J+2+0
+1.2Round 6🇫🇷 FRANCE202♥♦5-2-9
+1.2Round 11🇨🇳 CHINA155♠♥8+1+11
+1.2Round 15🇮🇹 ITALY12♦♠K+2+1
+1.1Round 15🇮🇹 ITALY24♠♦A+2+1
+1.0Round 4🇳🇿 NEW ZEALAND212♠♦5-2+5
+1.0Round 14🇹🇼 CHINESE TAIPEI213♦♠Q=+0
+1.0Round 17🇺🇸 USA2143♥♦5-1+2
+1.0Round 20🇦🇷 ARGENTINA133NT♠3+1+0
+1.0Round 22🇮🇳 INDIA51NT♠4+2+10
+0.9Round 16🇷🇴 ROMANIA324♠♦A+1+4
+0.9Round 21🇨🇦 CANADA263NT♥7+1+1
+0.8Round 7🇪🇬 EGYPT73NT♣Q=+0
+0.8Round 9🇧🇪 BELGIUM34♠♣2-3+5
+0.8Round 11🇨🇳 CHINA74♥♠Q-1-1
+0.8Round 18🇦🇪 UAE251NT♥8=+5
+0.7Round 4🇳🇿 NEW ZEALAND233NT♠9-1-6
+0.7Round 18🇦🇪 UAE215♦♥9=+2
+0.6Round 1🇹🇳 TUNISIA163NT♠10+1+12
+0.6Round 6🇫🇷 FRANCE243NT♠A+1+0
+0.6Round 6🇫🇷 FRANCE265♦♠J=+0
+0.6Round 11🇨🇳 CHINA42♥♦10+1+0
+0.6Round 21🇨🇦 CANADA193♥♣K+1-6
+0.6Round 22🇮🇳 INDIA105♥x♠A-2-3
+0.5Round 17🇺🇸 USA266♥♠6=+13
+0.4Round 9🇧🇪 BELGIUM115♣♠K=-2
+0.4Round 22🇮🇳 INDIA44♥♥10+1+0
+0.4Round 23🇦🇺 AUSTRALIA172♥♣5+1+0
+0.3Round 23🇦🇺 AUSTRALIA271NT♥7-3+6
+0.2Round 1🇹🇳 TUNISIA86♥♣9+1+11
+0.2Round 3🇮🇱 ISRAEL83NT♥8+4+10
+0.2Round 7🇪🇬 EGYPT55♦♣2+1-13
+0.2Round 9🇧🇪 BELGIUM91NT♠8+1+0
+0.2Round 10🇩🇪 GERMANY212♥♣3=+0
+0.2Round 17🇺🇸 USA212♠♥A=+0
+0.2Round 22🇮🇳 INDIA63NT♦10+4+10
+0.1Round 3🇮🇱 ISRAEL124♥♠10=+0
+0.1Round 14🇹🇼 CHINESE TAIPEI202♣♠K+1+0
+0.0Round 1🇹🇳 TUNISIA103NT♥J+1+0
-0.0Round 6🇫🇷 FRANCE312NT♠10+1-10
+0.0Round 7🇪🇬 EGYPT84♣♠K-2-1
+0.0Round 10🇩🇪 GERMANY234♥♦J=-3
+0.0Round 11🇨🇳 CHINA13NT♥6+2-11
-0.0Round 16🇷🇴 ROMANIA252♥♦5=-1
+0.0Round 17🇺🇸 USA291NT♥A+1+0
+0.0Round 17🇺🇸 USA2124♥♣Q+1+0
-0.0Round 22🇮🇳 INDIA24♥♠6+2-11
-0.1Round 6🇫🇷 FRANCE274♥♠K=-1
-0.2Round 6🇫🇷 FRANCE284♥♠8=+0
-0.2Round 16🇷🇴 ROMANIA205♥♦A=+0
-0.2Round 20🇦🇷 ARGENTINA44♠♣A+2-13
-0.2Round 20🇦🇷 ARGENTINA94♠♦8=+0
-0.2Round 23🇦🇺 AUSTRALIA193NT♠7+2+0
-0.3Round 17🇺🇸 USA282♦♥J-2+1
-0.4Round 10🇩🇪 GERMANY173NT♠10+1+0
-0.4Round 18🇦🇪 UAE204♠♥4+1+0
-0.4Round 23🇦🇺 AUSTRALIA323♠♥6=-7
-0.5Round 18🇦🇪 UAE313NT♠8=-1
-0.6Round 11🇨🇳 CHINA33NT♠4+1+0
-0.6Round 16🇷🇴 ROMANIA313NT♥7+2+0
-0.6Round 21🇨🇦 CANADA314♠♥8=+1
-0.7Round 1🇹🇳 TUNISIA93♣♠2-1-5
-0.7Round 6🇫🇷 FRANCE193NT♥2+2-10
-0.7Round 6🇫🇷 FRANCE323NT♠6+1-11
-0.7Round 10🇩🇪 GERMANY243♥♠5=-1
-0.7Round 18🇦🇪 UAE241NT♦4-1-2
-0.8Round 7🇪🇬 EGYPT123NT♥3=+0
-0.9Round 7🇪🇬 EGYPT142♠♥9=+0
-0.9Round 14🇹🇼 CHINESE TAIPEI325♠♦8=+0
-0.9Round 18🇦🇪 UAE193NT♣8=+0
-0.9Round 20🇦🇷 ARGENTINA62NT♠2-1+2
-1.0Round 4🇳🇿 NEW ZEALAND273♦♣2=+0
-1.1Round 6🇫🇷 FRANCE292♥♠4+1-1
-1.2Round 4🇳🇿 NEW ZEALAND201NT♠7+1-1
-1.2Round 7🇪🇬 EGYPT44♠♥9=+1
-1.2Round 23🇦🇺 AUSTRALIA232♥♥8+1+0
-1.3Round 3🇮🇱 ISRAEL141NT♠K=+2
-1.3Round 17🇺🇸 USA2135♣♠2-1+6
-1.3Round 22🇮🇳 INDIA145♣♠5+1-11
-1.5Round 3🇮🇱 ISRAEL14♠♥K+2-1
-1.5Round 15🇮🇹 ITALY34♣♥2-2-8
-1.5Round 15🇮🇹 ITALY151NT♥5+2-1
-1.6Round 3🇮🇱 ISRAEL32♠♦2=+0
-1.6Round 14🇹🇼 CHINESE TAIPEI244♥♦2-3+4
-1.7Round 9🇧🇪 BELGIUM56♥♣J+1+11
-1.7Round 11🇨🇳 CHINA103♠♣6+1-1
-1.7Round 18🇦🇪 UAE231NT♥2=-5
-2.0Round 21🇨🇦 CANADA174♥♣5+2-11
-2.0Round 21🇨🇦 CANADA323NT♦10+1-4
-2.2Round 6🇫🇷 FRANCE253NT♦5-2-5
-2.2Round 14🇹🇼 CHINESE TAIPEI193NT♠7+1+0
-2.2Round 17🇺🇸 USA2103♠♥10-1-5
-2.3Round 4🇳🇿 NEW ZEALAND175♠♥K-2-6
-2.3Round 17🇺🇸 USA233♣♠Q-1+3
-2.3Round 18🇦🇪 UAE273NT♠4-1-10
-2.4Round 9🇧🇪 BELGIUM43♦♠7+1+0
-2.5Round 6🇫🇷 FRANCE303NT♥2+1+0
-2.5Round 23🇦🇺 AUSTRALIA182♥♣K+1+8
-2.6Round 4🇳🇿 NEW ZEALAND194♥♥2+1+0
-2.6Round 4🇳🇿 NEW ZEALAND323NT♠Q+2+12
-2.6Round 16🇷🇴 ROMANIA183♠♥6-1-5
-2.7Round 7🇪🇬 EGYPT94♥♠J-2-6
-2.8Round 3🇮🇱 ISRAEL134♠♣2-2-3
-2.8Round 18🇦🇪 UAE183♦♠K-1-5
-2.9Round 11🇨🇳 CHINA122♠♥Q=-5
-2.9Round 16🇷🇴 ROMANIA283♥♠7-1-5
-3.0Round 15🇮🇹 ITALY44♥♦K-1-12
-3.1Round 10🇩🇪 GERMANY284♠♣K-1-5
-3.1Round 14🇹🇼 CHINESE TAIPEI283♥♠K=+0
-3.1Round 15🇮🇹 ITALY124♠♣K-1-1
-3.1Round 20🇦🇷 ARGENTINA153♣♠6+1-6
-3.1Round 21🇨🇦 CANADA304♠♣8-3-6
-3.2Round 9🇧🇪 BELGIUM154♥♣4=+0
-3.2Round 14🇹🇼 CHINESE TAIPEI272♦♠K-3-6
-3.2Round 18🇦🇪 UAE173♥♠A=+0
-3.3Round 10🇩🇪 GERMANY253♣♠A-1-4
-3.3Round 20🇦🇷 ARGENTINA125♣♣8=+0
-3.4Round 4🇳🇿 NEW ZEALAND305♠♥5=+0
-3.4Round 7🇪🇬 EGYPT112♠♦K-1-9
-3.5Round 3🇮🇱 ISRAEL93NT♣5=-13
-3.6Round 17🇺🇸 USA2151NT♣7+3+2
-3.7Round 15🇮🇹 ITALY144♠♦9-2-6
-3.7Round 18🇦🇪 UAE223NT♦J-2-13
-3.8Round 9🇧🇪 BELGIUM123♥♠3-2+6
-3.8Round 10🇩🇪 GERMANY223♠♥Q-1-4
-3.8Round 23🇦🇺 AUSTRALIA243♥♦A=-1
-3.9Round 1🇹🇳 TUNISIA123NT♦7-1-6
-4.1Round 4🇳🇿 NEW ZEALAND313♥♦9-1-6
-4.2Round 11🇨🇳 CHINA113NT♥J-3-6
-4.5Round 16🇷🇴 ROMANIA244♠♥A-1-5
-4.6Round 1🇹🇳 TUNISIA133♦♠5-3-9
-4.7Round 11🇨🇳 CHINA163NT♥J+1+0
-4.8Round 10🇩🇪 GERMANY263NT♠6-1-6
-5.0Round 9🇧🇪 BELGIUM102NT♥A+2-7
-5.1Round 15🇮🇹 ITALY73NT♦6+1-1
-5.2Round 21🇨🇦 CANADA185♦x♣K=-4
-5.2Round 22🇮🇳 INDIA123NT♠6=+0
-5.3Round 20🇦🇷 ARGENTINA73NT♠8-1-12
-5.3Round 21🇨🇦 CANADA203♠♥A+1-10
-5.4Round 10🇩🇪 GERMANY294♠x♠K-3-4
-5.5Round 20🇦🇷 ARGENTINA163NT♠5+3-3
-5.6Round 21🇨🇦 CANADA283NT♦5-1-12
-5.7Round 11🇨🇳 CHINA85♦♣A-1-6
-5.7Round 16🇷🇴 ROMANIA263NT♦A-1-6
-5.7Round 21🇨🇦 CANADA243NT♥9=-7
-5.9Round 11🇨🇳 CHINA147♦♣4=+2
-5.9Round 20🇦🇷 ARGENTINA54♥♦7=+0
-6.2Round 1🇹🇳 TUNISIA43NT♠10-2-8
-6.4Round 10🇩🇪 GERMANY306♠♣9=+0
-6.7Round 1🇹🇳 TUNISIA65♣♦A=-7
-6.7Round 23🇦🇺 AUSTRALIA286NT♦A-2-12
-6.8Round 3🇮🇱 ISRAEL24♠♥J=-3
-6.9Round 21🇨🇦 CANADA254♥♦3=+0
-7.0Round 20🇦🇷 ARGENTINA103NT♥K=+0
-7.1Round 16🇷🇴 ROMANIA306♥♣K-1-14
-7.4Round 20🇦🇷 ARGENTINA14♠x♦K-1+0
-7.7Round 3🇮🇱 ISRAEL53NT♦9+4-14
-7.8Round 10🇩🇪 GERMANY194♠♦K=-10
-7.8Round 10🇩🇪 GERMANY313NT♥4-3-9
-8.3Round 22🇮🇳 INDIA154♥♣K-1-14
-8.4Round 3🇮🇱 ISRAEL63NT♠J=-6
-8.5Round 3🇮🇱 ISRAEL163NT♥Q-1-12
-8.7Round 15🇮🇹 ITALY64♥♠Q-1-13
-8.7Round 22🇮🇳 INDIA164♠♥K+1-6
-8.9Round 6🇫🇷 FRANCE224♠♥5=+1
-9.0Round 4🇳🇿 NEW ZEALAND294♥♣2-2-2
-9.4Round 23🇦🇺 AUSTRALIA306NT♥J-1-10
-10.0Round 11🇨🇳 CHINA94♠x♣A-1-11
-10.0Round 23🇦🇺 AUSTRALIA254♥♠A+1-13
-11.3Round 11🇨🇳 CHINA136♠♣Q=-1
-11.6Round 23🇦🇺 AUSTRALIA314♥♦10-1-6
-12.7Round 15🇮🇹 ITALY136♦x♥Q=-10
-13.7Round 17🇺🇸 USA226♣♥3-1-17
-14.1Round 17🇺🇸 USA272♠x♦6=-13