🇺🇸 BERKOWITZ Dana · USA 1

29rank
+142.7Butler · 272 bds
+0.52per board
±4.5swing
+0.76vs par /bd · #13/136
+0.50adjusted /bd
Butler per round: -15.9 20.1 17.5 -10.5 19.4 20.7 -7.9 9.1 36 28.1 11.9 16.3 -2 -31.6 19.2 -6 18.3by round

vs par split: bidding +0.42 · play +0.34

Strength of schedule: opponents averaged -0.03/bd (an average draw) → opponent-adjusted +0.50/bd

Card play — on target: opening leads 79.1% #83 of 136 · declarer play 76.5% #64 of 136 · defence 91.0% #7 of 136

Card play by contract type — on target
vs NTvs a suit
Opening leads76.9% (13)79.6% (54)
Declarer play64.3% (14)79.6% (54)
Defence90.6% (32)91.1% (112)

Opening leads by suit led: ♠ 75.0% (16) · ♥ 100.0% (13) · ♦ 66.7% (24) · ♣ 85.7% (14)

vs par by strain: NT -0.13 (67) · a suit +1.05 (205)

vs par by level: part-score +1.39 (109) · game +0.19 (154) · slam +2.89 (9)

By role: declaring +0.01/bd (-1.30 vs par · 128) · defending +0.98/bd (+2.58 vs par · 144)

By vulnerability: vulnerable +0.65/bd (+0.60 vs par · 136) · not vulnerable +0.40/bd (+0.91 vs par · 136)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1E.GinossarP.Gruenke – M.EggelingOpen16-15.9-0.99-0.88
Round 3E.GinossarA.Abu-Ghazaleh – M.HishmatOpen16+20.1+1.26+1.50
Round 4E.GinossarL.Fuller – T.FullerClosed16+17.5+1.09+0.50
Round 6E.GinossarE.Lim – S.LowOpen16-10.5-0.66-1.06
Round 7E.GinossarL.Cima – B.DessiClosed16+19.4+1.21+1.88
Round 9E.GinossarL.Lewis – P.LewisClosed16+20.7+1.29+2.50
Round 10E.GinossarT.Ozbay – E.AtesOpen16-7.9-0.49-0.38
Round 11E.GinossarH.Khandelwal – R.KhandelwalOpen16+9.1+0.57+2.94
Round 13E.GinossarA.Trabelsi – F.TrabelsiOpen16+36.0+2.25+1.56
Round 14E.GinossarM.Caracci – L.CuevasOpen16+28.1+1.76+1.81
Round 16E.GinossarR.Poleschi – L.FerreroClosed16+11.9+0.74+3.12
Round 17E.GinossarJ.Ilzins – M.RomanovskaOpen16+16.3+1.02+1.25
Round 19E.GinossarI.Dewasme – B.DehayeOpen16-2.0-0.12+0.81
Round 20E.GinossarS.Buus Thomsen – P.JepsenClosed16-31.6-1.98-0.75
Round 21E.GinossarS.Pessoa – J.BarbosaClosed16+19.2+1.20+0.06
Round 22E.GinossarR.Verdegaal – M.ThieleOpen16-6.0-0.38-1.50
Round 23E.GinossarP.Cronier – B.CronierClosed16+18.3+1.14-0.50

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
+13.1Round 23🇫🇷 FRANCE46♥♣2-2+17
+12.2Round 4🇦🇺 AUSTRALIA186♠♣2-1+17
+11.0Round 21🇵🇹 PORTUGAL155♣x♠A-3+11
+10.2Round 3🇪🇬 EGYPT54♠x♦A-1+11
+10.2Round 4🇦🇺 AUSTRALIA202NT♣8+2+15
+10.0Round 14🇨🇱 CHILE323NT♦10=+7
+10.0Round 23🇫🇷 FRANCE73NT♣A+1+4
+9.8Round 11🇮🇳 INDIA104♥♠5-1+12
+9.7Round 14🇨🇱 CHILE254♦x♣K-2+18
+9.5Round 7🇮🇹 ITALY74♥♠Q-1+6
+9.4Round 9🇺🇸 USA 2164♠♠6=+10
+8.8Round 10🇹🇷 TURKEY233NT♠J-1+6
+8.7Round 7🇮🇹 ITALY115♦♠6-1+11
+8.4Round 3🇪🇬 EGYPT44♠♣3-1+12
+8.3Round 3🇪🇬 EGYPT133♠♥K+1+10
+8.3Round 16🇦🇷 ARGENTINA326♥♦6-1+17
+8.2Round 14🇨🇱 CHILE192♠♥K-1+6
+8.2Round 22🇳🇱 NETHERLANDS252♦♣9-2+8
+8.1Round 4🇦🇺 AUSTRALIA232♦♣9=+11
+8.1Round 13🇹🇳 TUNISIA163NT♠2-1+10
+8.0Round 13🇹🇳 TUNISIA75♦♣A=+0
+7.8Round 19🇧🇪 BELGIUM151♠x♦K-1+11
+7.7Round 6🇸🇬 SINGAPORE224♥♠4=+13
+7.4Round 9🇺🇸 USA 2146♣♦6-1+14
+7.2Round 17🇱🇻 LATVIA33NT♠2=+6
+6.9Round 3🇪🇬 EGYPT95♣♥Q=+3
+6.5Round 11🇮🇳 INDIA43♣x♠Q-2+9
+6.2Round 9🇺🇸 USA 2124♠♦A+2+12
+6.2Round 16🇦🇷 ARGENTINA312♥♣A+2+10
+6.1Round 17🇱🇻 LATVIA74♠♥3+1+4
+6.0Round 21🇵🇹 PORTUGAL14♥♥4-2+5
+5.9Round 9🇺🇸 USA 293NT♥3-1+5
+5.8Round 13🇹🇳 TUNISIA15♠x♣10-2+9
+5.8Round 23🇫🇷 FRANCE133♣♦5+2+10
+5.7Round 13🇹🇳 TUNISIA93♥x♠10-2+5
+5.5Round 16🇦🇷 ARGENTINA295♠♦Q=+0
+5.5Round 17🇱🇻 LATVIA101NT♣5=+5
+5.3Round 11🇮🇳 INDIA74♠♦10=+0
+5.2Round 22🇳🇱 NETHERLANDS183NT♥J+1+1
+5.2Round 22🇳🇱 NETHERLANDS274♠♥2-3+7
+5.1Round 3🇪🇬 EGYPT124♣♦A-2+3
+5.0Round 7🇮🇹 ITALY85♦x♦Q-2+5
+5.0Round 9🇺🇸 USA 2114♥♦A-1+10
+4.8Round 17🇱🇻 LATVIA23♠♣A-2+6
+4.6Round 23🇫🇷 FRANCE82NT♥J-1+5
+4.3Round 7🇮🇹 ITALY44♠♠3-1+12
+4.3Round 7🇮🇹 ITALY95♣♦K-1+11
+4.3Round 16🇦🇷 ARGENTINA242♣♥J-1+8
+4.3Round 19🇧🇪 BELGIUM132♥♦K=+12
+4.1Round 9🇺🇸 USA 214♦♣K-1+4
+4.0Round 19🇧🇪 BELGIUM83NT♣J-2+5
+3.8Round 14🇨🇱 CHILE274♥♣7=+0
+3.8Round 21🇵🇹 PORTUGAL87♠♠7=+0
+3.7Round 6🇸🇬 SINGAPORE201NT♣3-3+8
+3.7Round 22🇳🇱 NETHERLANDS234NT♠J+2-12
+3.6Round 16🇦🇷 ARGENTINA253♠♣10-3+1
+3.5Round 11🇮🇳 INDIA151NT♦4+1+1
+3.5Round 20🇩🇰 DENMARK322NT♠5-1+1
+3.4Round 4🇦🇺 AUSTRALIA174♠♣6+2+2
+3.3Round 6🇸🇬 SINGAPORE243♠x♠3-2-3
+3.3Round 11🇮🇳 INDIA85♣♠8+1+1
+3.3Round 22🇳🇱 NETHERLANDS192♦x♦4-1+3
+3.2Round 1🇩🇪 GERMANY92NT♦10-5+8
+3.2Round 1🇩🇪 GERMANY113NT♥J=+6
+3.2Round 7🇮🇹 ITALY33♦♥7-3+4
+3.2Round 13🇹🇳 TUNISIA51NT♦7-2-5
+3.1Round 23🇫🇷 FRANCE14♠♣9-1+10
+3.0Round 11🇮🇳 INDIA24♠x♥K=+15
+3.0Round 16🇦🇷 ARGENTINA262♥♣4=+6
+2.9Round 9🇺🇸 USA 254♥♣10=-1
+2.8Round 4🇦🇺 AUSTRALIA222NT♠5=+0
+2.8Round 10🇹🇷 TURKEY183♠♦8-4+2
+2.7Round 20🇩🇰 DENMARK243NT♥Q-1+5
+2.7Round 21🇵🇹 PORTUGAL143NT♣J+2-11
+2.6Round 4🇦🇺 AUSTRALIA274♥♠5-1+5
+2.4Round 16🇦🇷 ARGENTINA303♠♦K-1-4
+2.4Round 17🇱🇻 LATVIA93♦♠A=+5
+2.4Round 22🇳🇱 NETHERLANDS313♦♥J-2+0
+2.3Round 17🇱🇻 LATVIA133♠♣2=+10
+2.3Round 19🇧🇪 BELGIUM124♠x♦10-1-5
+2.3Round 19🇧🇪 BELGIUM161NT♥2+2-8
+2.2Round 10🇹🇷 TURKEY213♦♥5+1+0
+2.2Round 21🇵🇹 PORTUGAL73NT♦3+1-1
+2.1Round 6🇸🇬 SINGAPORE283♣♥K-1+5
+2.0Round 9🇺🇸 USA 2154♠♥10+1+0
+2.0Round 10🇹🇷 TURKEY312♦♦4-2+5
+1.9Round 1🇩🇪 GERMANY42♠♣10+1+6
+1.9Round 20🇩🇰 DENMARK312♠♦6-1-2
+1.9Round 23🇫🇷 FRANCE145♣x♥5-1-5
+1.8Round 7🇮🇹 ITALY13NT♥2+2+0
+1.8Round 13🇹🇳 TUNISIA122♠♦A=+5
+1.8Round 13🇹🇳 TUNISIA154♥♣5-1+6
+1.8Round 14🇨🇱 CHILE284♠♥A-2-5
+1.8Round 21🇵🇹 PORTUGAL33NT♦3+2+12
+1.8Round 21🇵🇹 PORTUGAL103♠♣A=+0
+1.8Round 23🇫🇷 FRANCE153NT♥Q-1+5
+1.7Round 17🇱🇻 LATVIA83♣♠A=+0
+1.7Round 17🇱🇻 LATVIA155♦♠A+1-13
+1.6Round 1🇩🇪 GERMANY23♠♣K+1+10
+1.6Round 3🇪🇬 EGYPT65♦x♣3-1+6
+1.6Round 16🇦🇷 ARGENTINA284♠♦10-2+7
+1.6Round 17🇱🇻 LATVIA162♦♠5+2+1
+1.5Round 1🇩🇪 GERMANY64♦♠K-1+4
+1.5Round 13🇹🇳 TUNISIA25♣♥K-1+6
+1.5Round 13🇹🇳 TUNISIA42♠♥A=-1
+1.5Round 14🇨🇱 CHILE221NT♥8=+5
+1.4Round 6🇸🇬 SINGAPORE173♠♠J+2-6
+1.4Round 9🇺🇸 USA 2102♥♦6=-1
+1.4Round 14🇨🇱 CHILE312♥♣J+2+6
+1.4Round 21🇵🇹 PORTUGAL63NT♠3+1+7
+1.3Round 3🇪🇬 EGYPT73♠♠4-1+5
+1.3Round 11🇮🇳 INDIA144♥♣8+1+0
+1.3Round 16🇦🇷 ARGENTINA181NT♦2-1+11
+1.2Round 3🇪🇬 EGYPT25♦♠A-1+6
+1.2Round 17🇱🇻 LATVIA64♠♣J+1+1
+1.1Round 13🇹🇳 TUNISIA64♥♦K+1+0
+1.1Round 14🇨🇱 CHILE184♠♣K-1-2
+1.0Round 1🇩🇪 GERMANY12♠♦5=+0
+1.0Round 4🇦🇺 AUSTRALIA283♦♥10-1-1
+1.0Round 6🇸🇬 SINGAPORE311NT♠J-1+0
+1.0Round 7🇮🇹 ITALY54♠♥5=+0
+1.0Round 7🇮🇹 ITALY162♠♥A=-5
+1.0Round 17🇱🇻 LATVIA54♠♥J+1+0
+1.0Round 21🇵🇹 PORTUGAL24♥♠4-1+5
+1.0Round 23🇫🇷 FRANCE62NT♣8+1+1
+0.9Round 22🇳🇱 NETHERLANDS243NT♦2=+1
+0.8Round 4🇦🇺 AUSTRALIA311NT♥8+3-6
+0.8Round 10🇹🇷 TURKEY243♣♦Q=+7
+0.8Round 16🇦🇷 ARGENTINA233NT♥Q+3-13
+0.7Round 13🇹🇳 TUNISIA114♥♦2+1+0
+0.7Round 13🇹🇳 TUNISIA133NT♣2=-1
+0.7Round 21🇵🇹 PORTUGAL132♥♠8=+0
+0.6Round 6🇸🇬 SINGAPORE324♠♣2+1-13
+0.6Round 9🇺🇸 USA 282♠♥8-1+8
+0.5Round 13🇹🇳 TUNISIA144♥♠A+1+0
+0.5Round 14🇨🇱 CHILE304♠♣J+2-11
+0.5Round 19🇧🇪 BELGIUM104♥♣K=-1
+0.5Round 22🇳🇱 NETHERLANDS213♦♠7-2-1
+0.4Round 4🇦🇺 AUSTRALIA263♣♦K+2-8
+0.4Round 9🇺🇸 USA 243♥♦6+1+1
+0.4Round 10🇹🇷 TURKEY294♠♣4+2+13
+0.4Round 11🇮🇳 INDIA13♥♣A+1+4
+0.4Round 13🇹🇳 TUNISIA32♠♥3-1-2
+0.4Round 19🇧🇪 BELGIUM93♦♥10+1+8
+0.3Round 4🇦🇺 AUSTRALIA253♠♥J-1+3
+0.3Round 19🇧🇪 BELGIUM44♥♦2+1+13
+0.3Round 21🇵🇹 PORTUGAL53♦♥J-2-11
+0.2Round 1🇩🇪 GERMANY124♥♣7+2+1
+0.2Round 3🇪🇬 EGYPT164♥♦4=+1
+0.2Round 23🇫🇷 FRANCE24♥♦7=-6
+0.1Round 6🇸🇬 SINGAPORE182NT♦5+2+10
+0.1Round 23🇫🇷 FRANCE33NT♦Q=+0
+0.0Round 3🇪🇬 EGYPT14♥♦A+1+0
+0.0Round 6🇸🇬 SINGAPORE274♥♠K+1+0
-0.0Round 7🇮🇹 ITALY134♠♥K=+0
+0.0Round 10🇹🇷 TURKEY203NT♣6+2+1
-0.0Round 19🇧🇪 BELGIUM143NT♠3+1+1
-0.0Round 20🇩🇰 DENMARK223NT♠5+1+1
+0.0Round 20🇩🇰 DENMARK303♥♦10-1+2
-0.0Round 22🇳🇱 NETHERLANDS174♠♣10+1+0
-0.1Round 1🇩🇪 GERMANY154♥♦2+1+0
-0.1Round 19🇧🇪 BELGIUM23NT♦9+2+1
-0.2Round 1🇩🇪 GERMANY143♣♥10=+0
-0.2Round 4🇦🇺 AUSTRALIA305♥x♠K-2+0
-0.2Round 20🇩🇰 DENMARK202♥♦5+1+0
-0.2Round 23🇫🇷 FRANCE53♥♦7-1-3
-0.3Round 14🇨🇱 CHILE293♠♥A-1-1
-0.3Round 17🇱🇻 LATVIA143NT♥2+1+0
-0.5Round 10🇹🇷 TURKEY194♠♥2+2-11
-0.5Round 20🇩🇰 DENMARK172♠♣J-2+1
-0.6Round 6🇸🇬 SINGAPORE232♠♣2-1+0
-0.6Round 7🇮🇹 ITALY61NT♣3=+1
-0.6Round 19🇧🇪 BELGIUM33♥♠A+1+6
-0.6Round 20🇩🇰 DENMARK213NT♠10=+0
-0.6Round 20🇩🇰 DENMARK233♦♠8+2+2
-0.7Round 1🇩🇪 GERMANY75♣♦A-1-6
-0.7Round 6🇸🇬 SINGAPORE195♦♣J=+2
-0.7Round 10🇹🇷 TURKEY255♥♠J-1+5
-0.7Round 11🇮🇳 INDIA163♥♣6=+4
-0.8Round 3🇪🇬 EGYPT103♦♥A=+0
-0.8Round 9🇺🇸 USA 273NT♦Q-1-9
-0.8Round 22🇳🇱 NETHERLANDS304♣♥K-3-7
-0.9Round 10🇹🇷 TURKEY303♥♦7-1-4
-1.0Round 19🇧🇪 BELGIUM13NT♠9-3-7
-1.0Round 19🇧🇪 BELGIUM114♠♣Q+2-1
-1.1Round 14🇨🇱 CHILE213NT♥2=+0
-1.2Round 10🇹🇷 TURKEY223NT♦9-2-5
-1.2Round 14🇨🇱 CHILE243NT♠10=-2
-1.3Round 3🇪🇬 EGYPT84♥♠2=-7
-1.3Round 7🇮🇹 ITALY144♠♠2+1+0
-1.3Round 11🇮🇳 INDIA52♥♥8+2+1
-1.3Round 14🇨🇱 CHILE174♠x♦A-3-3
-1.4Round 9🇺🇸 USA 262♦♣3+1+1
-1.4Round 10🇹🇷 TURKEY272♠♦8-2-8
-1.5Round 1🇩🇪 GERMANY134♥♦3+1-1
-1.5Round 11🇮🇳 INDIA34♠♦J+1-1
-1.5Round 11🇮🇳 INDIA124♠♦A=+0
-1.5Round 14🇨🇱 CHILE204♥♦J=+1
-1.7Round 17🇱🇻 LATVIA44♠♥A+2+13
-1.7Round 20🇩🇰 DENMARK293♦♣K+1+0
-1.9Round 16🇦🇷 ARGENTINA172♠♣7+1-1
-2.0Round 21🇵🇹 PORTUGAL163NT♠Q+2+0
-2.1Round 4🇦🇺 AUSTRALIA242♥♦J+2+7
-2.1Round 21🇵🇹 PORTUGAL45♣x♦A-1+0
-2.2Round 4🇦🇺 AUSTRALIA214♥♠9=-3
-2.2Round 14🇨🇱 CHILE232♥♦7+1+10
-2.3Round 3🇪🇬 EGYPT33NT♠4-1-12
-2.3Round 13🇹🇳 TUNISIA83♣♦2=-7
-2.3Round 14🇨🇱 CHILE264♥♦3=+0
-2.3Round 21🇵🇹 PORTUGAL96NT♣10=+0
-2.5Round 13🇹🇳 TUNISIA104♥♦9=+0
-2.5Round 23🇫🇷 FRANCE93NT♦6+1+0
-2.6Round 3🇪🇬 EGYPT113NT♠8-1+2
-2.6Round 6🇸🇬 SINGAPORE264♠♦A=+1
-2.6Round 20🇩🇰 DENMARK254♠♣A=+1
-2.7Round 7🇮🇹 ITALY24♠♥J=+0
-2.7Round 23🇫🇷 FRANCE122♥♣10+1-10
-2.9Round 21🇵🇹 PORTUGAL115♥x♦A-1-5
-3.0Round 7🇮🇹 ITALY104♥♣J+1+0
-3.0Round 17🇱🇻 LATVIA123NT♦4+1+0
-3.0Round 19🇧🇪 BELGIUM63NT♦3=+2
-3.0Round 23🇫🇷 FRANCE114♥♣J+2-11
-3.1Round 20🇩🇰 DENMARK264♥♣A=+0
-3.2Round 6🇸🇬 SINGAPORE211NT♦5+2-7
-3.2Round 10🇹🇷 TURKEY283♦♣10=+0
-3.2Round 10🇹🇷 TURKEY326NT♠10=-13
-3.3Round 22🇳🇱 NETHERLANDS263♠♦6-1-6
-3.5Round 7🇮🇹 ITALY123♠♣8=-7
-3.7Round 16🇦🇷 ARGENTINA274♠♣K+1-1
-3.7Round 22🇳🇱 NETHERLANDS283♥♣K-1-6
-3.8Round 11🇮🇳 INDIA94♠♥A=+0
-3.9Round 20🇩🇰 DENMARK193NT♥10+1+0
-4.0Round 16🇦🇷 ARGENTINA224♥♦3-1+1
-4.0Round 22🇳🇱 NETHERLANDS204♥♦4-1+1
-4.1Round 11🇮🇳 INDIA112♦x♠8-1+1
-4.1Round 16🇦🇷 ARGENTINA193♥♥4-1-5
-4.2Round 11🇮🇳 INDIA64♠♣A+1+12
-4.2Round 21🇵🇹 PORTUGAL125♦♠2-2-11
-4.2Round 22🇳🇱 NETHERLANDS293♥♣A-1-11
-4.3Round 23🇫🇷 FRANCE164♠♥6-3-12
-4.4Round 1🇩🇪 GERMANY53♣♥A+1+0
-4.4Round 17🇱🇻 LATVIA111NTx♥4-1-8
-4.5Round 9🇺🇸 USA 223NT♥4+2-1
-4.8Round 1🇩🇪 GERMANY162NT♦3-2-7
-4.8Round 4🇦🇺 AUSTRALIA325♣♦K+1-10
-5.2Round 16🇦🇷 ARGENTINA205♦x♠4=+12
-5.3Round 1🇩🇪 GERMANY84♥♠6+2-11
-5.4Round 1🇩🇪 GERMANY102♥♦10=-16
-6.1Round 1🇩🇪 GERMANY33♥♠5-2-8
-6.2Round 16🇦🇷 ARGENTINA214♥♦A=+1
-6.5Round 6🇸🇬 SINGAPORE253NT♥6=-7
-6.6Round 6🇸🇬 SINGAPORE305♠♦10+1-8
-6.7Round 4🇦🇺 AUSTRALIA294♠♦8-1-12
-6.7Round 19🇧🇪 BELGIUM74♠♦10-1-12
-6.8Round 3🇪🇬 EGYPT143NT♦4-2-6
-6.8Round 10🇹🇷 TURKEY265♦♥K-2-7
-6.9Round 11🇮🇳 INDIA134♠♣J-1-12
-7.0Round 10🇹🇷 TURKEY173♦x♥5-2+3
-7.3Round 20🇩🇰 DENMARK274♠x♥2-2-5
-8.0Round 22🇳🇱 NETHERLANDS224♥x♣10-3+3
-8.3Round 4🇦🇺 AUSTRALIA194♠♥4-1-12
-8.3Round 7🇮🇹 ITALY155♣♥2+1-8
-8.4Round 9🇺🇸 USA 234♥♠8=+0
-9.0Round 20🇩🇰 DENMARK184♥♦A-1-6
-9.3Round 3🇪🇬 EGYPT154♠x♥A=-10
-9.5Round 9🇺🇸 USA 2136♥♦2-1-13
-9.8Round 17🇱🇻 LATVIA13NT♥8-1-10
-10.2Round 6🇸🇬 SINGAPORE293NT♠2-1-12
-10.2Round 20🇩🇰 DENMARK283♥x♣A-4-12
-10.6Round 23🇫🇷 FRANCE106♦♥6-2-13
-11.4Round 22🇳🇱 NETHERLANDS323NTx♦K-4-5
-11.5Round 19🇧🇪 BELGIUM55♥♠4-5-12