🇨🇦 BERCUSON Ken · CANADA

114rank
-89.2Butler · 240 bds
-0.37per board
±4.2swing
-0.16vs par /bd · #79/135
-0.35adjusted /bd
Butler per round: -8.7 18.2 -14.5 -8.3 -21.5 -32.9 7.9 23.8 -11 -30.5 10.9 -19.3 -12.5 0.3 8.9by round

vs par split: bidding -0.16 · play +0.00

Strength of schedule: opponents averaged +0.02/bd (an average draw) → opponent-adjusted -0.35/bd

Card play — on target: opening leads 80.0% #49 of 135 · declarer play 75.4% #47 of 135 · defence 86.2% #67 of 135

Card play by contract type — on target
vs NTvs a suit
Opening leads52.6% (19)92.7% (41)
Declarer play78.6% (14)74.5% (47)
Defence85.7% (35)86.5% (74)

Opening leads by suit led: ♠ 73.3% (15) · ♥ 92.3% (13) · ♦ 80.0% (15) · ♣ 76.5% (17)

vs par by strain: NT +0.48 (66) · a suit -0.40 (174)

vs par by level: part-score -0.60 (90) · game -0.01 (136) · slam +1.21 (14)

By role: declaring -0.50/bd (-2.47 vs par · 131) · defending -0.22/bd (+2.62 vs par · 109)

By vulnerability: vulnerable -0.40/bd (-0.53 vs par · 120) · not vulnerable -0.34/bd (+0.22 vs par · 120)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2G.MittelmanP.O'Briain – M.O'BriainClosed16-8.7-0.54+2.19
Round 3G.MittelmanL.Poplilov – M.PoplilovOpen16+18.2+1.14+0.25
Round 4G.MittelmanD.Morse – G.KasleOpen16-14.5-0.91-2.44
Round 5G.MittelmanS.Schou – J.HansenClosed16-8.3-0.52-1.31
Round 7G.MittelmanM.Rosenberg – M.LairOpen16-21.5-1.34+0.88
Round 8G.MittelmanM.Lebel – P.SouletOpen16-32.9-2.06-2.12
Round 10G.MittelmanW.Starkowski – M.KwiecienOpen16+7.9+0.49+2.88
Round 11G.MittelmanH.Vergoed – A.MulderOpen16+23.8+1.49+1.50
Round 13G.MittelmanA.Comella – S.SabbatiniOpen16-11.0-0.69-1.00
Round 14G.MittelmanB.Neill – A.KanetkarClosed16-30.5-1.91-4.06
Round 16G.MittelmanA.Midfa – M.ElagamawyClosed16+10.9+0.68+0.62
Round 17G.MittelmanT.Jacob – B.MaceOpen16-19.3-1.21-0.75
Round 20G.MittelmanM.Sun – J.TaoClosed16-12.5-0.78+1.31
Round 21G.MittelmanA.Yamada – K.OhnoOpen16+0.3+0.02-1.50
Round 23G.MittelmanL.Stabell – T.StabellOpen16+8.9+0.56+1.19

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 16🇦🇪 U.A.E.247♠♣A-1+14
+10.7Round 20🇨🇳 CHINA264♥x♥5=+14
+10.6Round 3🇧🇬 BULGARIA123NT♣K-1+16
+10.0Round 16🇦🇪 U.A.E.222♣x♦A-3+9
+8.7Round 4🇺🇸 USA 1253♣x♠J-5-8
+8.7Round 17🇳🇿 NEW ZEALAND93NT♦5-1+10
+7.0Round 20🇨🇳 CHINA234♠♥6-1+12
+6.5Round 5🇩🇰 DENMARK134♠♦9=+10
+6.5Round 11🇳🇱 NETHERLANDS151♠x♦A-1+15
+6.3Round 3🇧🇬 BULGARIA106♦♥A-1-7
+6.3Round 10🇵🇱 POLAND196NT♥4+1+13
+6.2Round 11🇳🇱 NETHERLANDS72♦♦5=-1
+6.0Round 5🇩🇰 DENMARK126♠♥3=+0
+5.9Round 10🇵🇱 POLAND305♥x♦6-2+5
+5.6Round 17🇳🇿 NEW ZEALAND156♥♠Q=-9
+5.5Round 20🇨🇳 CHINA182♣♥3+2+1
+5.4Round 13🇮🇹 ITALY72♥♦2+1+0
+5.4Round 23🇳🇴 NORWAY54♥♠K-2+13
+5.3Round 11🇳🇱 NETHERLANDS42♣♥A=+12
+5.3Round 20🇨🇳 CHINA193♠♥A-1+8
+5.3Round 21🇯🇵 JAPAN74♥♠Q+1-12
+5.0Round 16🇦🇪 U.A.E.213NT♣A=+10
+4.7Round 14🇦🇺 AUSTRALIA243NT♠9=+0
+4.6Round 2🇮🇪 IRELAND314♠♦A-2+7
+4.6Round 3🇧🇬 BULGARIA73NT♣3-3+9
+4.6Round 10🇵🇱 POLAND184♥♠5-1-2
+4.5Round 3🇧🇬 BULGARIA12♦♦8+1+6
+4.5Round 10🇵🇱 POLAND203NT♦5-1+6
+4.5Round 11🇳🇱 NETHERLANDS24♥♣A-2+6
+4.3Round 5🇩🇰 DENMARK141NT♠7+3+1
+4.3Round 11🇳🇱 NETHERLANDS104♠♥5-1+3
+4.3Round 20🇨🇳 CHINA324♠x♣Q-1+6
+3.8Round 23🇳🇴 NORWAY152♥♦K=+6
+3.7Round 3🇧🇬 BULGARIA53NT♦2+2+0
+3.7Round 21🇯🇵 JAPAN116♦♥A=-2
+3.6Round 7🇺🇸 USA 284♣♥3-2+6
+3.5Round 16🇦🇪 U.A.E.302♥x♠8-1-1
+3.4Round 10🇵🇱 POLAND314♠♥9-1+5
+3.3Round 2🇮🇪 IRELAND206♦♦3+1+13
+3.3Round 7🇺🇸 USA 2143NT♥2-1+10
+3.2Round 7🇺🇸 USA 245♣♥A-1+6
+3.2Round 13🇮🇹 ITALY103NT♣5-2+8
+3.2Round 21🇯🇵 JAPAN64♠♥6+2+11
+3.2Round 23🇳🇴 NORWAY42♠♥A+1+1
+3.1Round 5🇩🇰 DENMARK22♠♦10=+0
+3.1Round 16🇦🇪 U.A.E.323NT♥2+1+1
+3.0Round 2🇮🇪 IRELAND175♦♠6+1+2
+2.8Round 17🇳🇿 NEW ZEALAND84♥♠8=+11
+2.3Round 4🇺🇸 USA 1223NT♠A-2+6
+2.3Round 4🇺🇸 USA 1234♥♦3+2-13
+2.3Round 11🇳🇱 NETHERLANDS94♥♦10=+0
+2.3Round 21🇯🇵 JAPAN162♥♦2-2+5
+2.3Round 23🇳🇴 NORWAY115♦♦9-2+6
+2.2Round 14🇦🇺 AUSTRALIA271NT♥A=-2
+2.2Round 16🇦🇪 U.A.E.232♦♥K-1+0
+2.2Round 17🇳🇿 NEW ZEALAND121♥♦Q-2+11
+2.2Round 23🇳🇴 NORWAY22♠♦A=-1
+2.1Round 8🇫🇷 FRANCE204♠♣Q+3+3
+2.0Round 8🇫🇷 FRANCE244♥♠Q+1+10
+2.0Round 13🇮🇹 ITALY94♠♥4-1+6
+1.9Round 3🇧🇬 BULGARIA83♦♦10+1+0
+1.9Round 7🇺🇸 USA 2103♥♦K+1+10
+1.7Round 5🇩🇰 DENMARK53NT♥J+1+0
+1.7Round 8🇫🇷 FRANCE173♠♣A-1+2
+1.7Round 13🇮🇹 ITALY132♠♥Q=+0
+1.7Round 16🇦🇪 U.A.E.313♥♣9+1+6
+1.7Round 21🇯🇵 JAPAN42♠♣7+1+1
+1.6Round 11🇳🇱 NETHERLANDS112NT♠K=+1
+1.6Round 11🇳🇱 NETHERLANDS134♠♣K-1+12
+1.6Round 13🇮🇹 ITALY123♥♥A=+0
+1.6Round 17🇳🇿 NEW ZEALAND43NT♥A-1+6
+1.5Round 16🇦🇪 U.A.E.173♥♣8=+1
+1.4Round 5🇩🇰 DENMARK154♥♦6+1+0
+1.4Round 10🇵🇱 POLAND223♦♦8=+5
+1.4Round 23🇳🇴 NORWAY104♥♣A-2+9
+1.3Round 2🇮🇪 IRELAND272NT♦4+1+6
+1.3Round 10🇵🇱 POLAND283NT♠8=+11
+1.2Round 7🇺🇸 USA 273♥♥3=+0
+1.2Round 16🇦🇪 U.A.E.294♠♥K+1+0
+1.2Round 17🇳🇿 NEW ZEALAND62♥♠2=+7
+1.1Round 10🇵🇱 POLAND322♥♠10-1-1
+1.1Round 16🇦🇪 U.A.E.202NT♦J=+0
+1.1Round 20🇨🇳 CHINA284♠♦K+2+12
+1.1Round 20🇨🇳 CHINA292♥♥3+2-10
+1.0Round 2🇮🇪 IRELAND321NT♣K=-1
+1.0Round 3🇧🇬 BULGARIA114♠♥Q+1-11
+1.0Round 11🇳🇱 NETHERLANDS142♠♥2=+5
+0.9Round 13🇮🇹 ITALY84♠♣A+1+0
+0.9Round 14🇦🇺 AUSTRALIA314♥♠10=+0
+0.8Round 13🇮🇹 ITALY153♥♣10=+0
+0.7Round 10🇵🇱 POLAND213NT♥5+2+11
+0.7Round 11🇳🇱 NETHERLANDS51NT♣A=-11
+0.7Round 20🇨🇳 CHINA304♥♠5+1+0
+0.7Round 23🇳🇴 NORWAY32NT♠3-2+5
+0.6Round 8🇫🇷 FRANCE212♠♠Q-1+2
+0.5Round 4🇺🇸 USA 1274♥♠9-2+0
+0.5Round 4🇺🇸 USA 1314♥♦7=-1
+0.5Round 8🇫🇷 FRANCE263♣x♠2-1+2
+0.5Round 10🇵🇱 POLAND244♥♠8-1+10
+0.5Round 20🇨🇳 CHINA311NT♠3+1+0
+0.5Round 23🇳🇴 NORWAY82NT♥5-1+2
+0.4Round 3🇧🇬 BULGARIA163NT♣J+2+0
+0.4Round 4🇺🇸 USA 1261♥♦4+1+6
+0.4Round 10🇵🇱 POLAND253NT♥4+1+0
+0.4Round 21🇯🇵 JAPAN54♥♦A+1+0
+0.4Round 21🇯🇵 JAPAN153NT♦6+1+0
+0.4Round 23🇳🇴 NORWAY124♠♣9+1+0
+0.3Round 5🇩🇰 DENMARK61NT♣6-2-2
+0.3Round 13🇮🇹 ITALY33♦♠A-1+1
+0.3Round 14🇦🇺 AUSTRALIA293NT♣4+1+1
+0.3Round 21🇯🇵 JAPAN84♥♠Q-2-5
+0.2Round 7🇺🇸 USA 2154♠♥10=-1
+0.2Round 11🇳🇱 NETHERLANDS11NT♥4-2+0
+0.2Round 23🇳🇴 NORWAY66♠♥10=+11
+0.1Round 17🇳🇿 NEW ZEALAND73NT♠2+3+1
+0.1Round 21🇯🇵 JAPAN104♥♣2+1+0
+0.0Round 2🇮🇪 IRELAND294♥♣A=+1
-0.0Round 3🇧🇬 BULGARIA24♥♦9=+0
+0.0Round 3🇧🇬 BULGARIA154♠♥9+1+0
-0.0Round 8🇫🇷 FRANCE323NT♠2+1+0
+0.0Round 11🇳🇱 NETHERLANDS124♠♣K+1-13
-0.0Round 21🇯🇵 JAPAN31♦♦2-1-3
-0.1Round 21🇯🇵 JAPAN13NT♣4-1+3
-0.2Round 2🇮🇪 IRELAND254♠♣2-1+5
-0.2Round 13🇮🇹 ITALY13♥♣6-1-4
-0.3Round 4🇺🇸 USA 1204♠♠5+1+0
-0.3Round 5🇩🇰 DENMARK94♠♦K=+0
-0.3Round 7🇺🇸 USA 2122NT♦2-1+12
-0.3Round 14🇦🇺 AUSTRALIA214♠♥10+1-1
-0.3Round 20🇨🇳 CHINA175♥♦7=+0
-0.4Round 3🇧🇬 BULGARIA134♥♣A-1-6
-0.4Round 8🇫🇷 FRANCE303NT♣2+1+0
-0.4Round 11🇳🇱 NETHERLANDS163NT♥10+1+1
-0.5Round 10🇵🇱 POLAND174♥♠A=+0
-0.6Round 2🇮🇪 IRELAND303♥♦K-4+5
-0.6Round 3🇧🇬 BULGARIA144♥♠A-1+2
-0.7Round 4🇺🇸 USA 1283♣♠3+1+0
-0.7Round 5🇩🇰 DENMARK72♥♠8+1+0
-0.7Round 8🇫🇷 FRANCE272♥♦6=+0
-0.7Round 14🇦🇺 AUSTRALIA324♠♦A+1+0
-0.8Round 2🇮🇪 IRELAND212♠♦K-1+3
-0.8Round 2🇮🇪 IRELAND244♠♣J+1+0
-0.8Round 8🇫🇷 FRANCE253NT♣3=+1
-0.8Round 14🇦🇺 AUSTRALIA193♠♣A-3-9
-0.9Round 17🇳🇿 NEW ZEALAND144♥♠J+1+0
-0.9Round 23🇳🇴 NORWAY11NT♣6+2+0
-1.0Round 2🇮🇪 IRELAND193NT♦9=+0
-1.0Round 2🇮🇪 IRELAND263NT♥3+1-1
-1.0Round 7🇺🇸 USA 2135♦♠K-1+6
-1.1Round 7🇺🇸 USA 214♠♥6-1-2
-1.1Round 8🇫🇷 FRANCE234♥♣Q+2-13
-1.1Round 13🇮🇹 ITALY24♠♦4+1+0
-1.2Round 5🇩🇰 DENMARK102♠♠2+3-10
-1.2Round 17🇳🇿 NEW ZEALAND113♣♦K-2+1
-1.3Round 4🇺🇸 USA 1324♠♥5+1-1
-1.3Round 7🇺🇸 USA 2163NT♣6+1+0
-1.3Round 14🇦🇺 AUSTRALIA184♠x♥K-1-6
-1.3Round 21🇯🇵 JAPAN23NT♣Q+2+0
-1.4Round 11🇳🇱 NETHERLANDS83♥♣5-2+1
-1.5Round 23🇳🇴 NORWAY163♠♣6=-4
-1.6Round 14🇦🇺 AUSTRALIA203♥♥6+1-1
-1.6Round 23🇳🇴 NORWAY95♦♣2=-13
-1.7Round 21🇯🇵 JAPAN143♥♥6-1-5
-1.8Round 4🇺🇸 USA 1303NT♥5+2-11
-1.8Round 13🇮🇹 ITALY54♥♣6+1+0
-1.9Round 23🇳🇴 NORWAY143NT♦3-1-10
-2.0Round 3🇧🇬 BULGARIA46♥♦6+1+13
-2.0Round 21🇯🇵 JAPAN92♠♠Q-1-5
-2.1Round 7🇺🇸 USA 2113♣♠7-2-6
-2.1Round 13🇮🇹 ITALY164♠♥A=+1
-2.2Round 17🇳🇿 NEW ZEALAND12♥♠3-1-4
-2.3Round 3🇧🇬 BULGARIA93♣♠A+1-11
-2.3Round 7🇺🇸 USA 261NT♦3+3-2
-2.5Round 7🇺🇸 USA 292♥x♦6-2-8
-2.5Round 11🇳🇱 NETHERLANDS33♣♦5+1-7
-2.5Round 23🇳🇴 NORWAY132♠♣9=+0
-2.6Round 17🇳🇿 NEW ZEALAND33NT♣2-1-5
-2.7Round 16🇦🇪 U.A.E.193NT♥J=+1
-2.7Round 16🇦🇪 U.A.E.261♠♦K-1-5
-2.8Round 5🇩🇰 DENMARK43♠♦6-1+0
-2.8Round 10🇵🇱 POLAND264♠♥J=+0
-2.8Round 23🇳🇴 NORWAY74♠♥7-1-6
-2.9Round 5🇩🇰 DENMARK112♠♦3+1-1
-2.9Round 14🇦🇺 AUSTRALIA173♥♦A-2-5
-3.0Round 2🇮🇪 IRELAND223NT♠9=+0
-3.0Round 14🇦🇺 AUSTRALIA283NT♦J+2+0
-3.2Round 13🇮🇹 ITALY143NT♣4+1+0
-3.2Round 14🇦🇺 AUSTRALIA263NT♥7=+0
-3.4Round 2🇮🇪 IRELAND183NT♠4-1-5
-3.4Round 8🇫🇷 FRANCE284♠♣J=-3
-3.5Round 5🇩🇰 DENMARK84♥♠5=+0
-3.6Round 14🇦🇺 AUSTRALIA231NT♦8+3-9
-3.7Round 4🇺🇸 USA 1184♠x♣8-1+0
-3.7Round 4🇺🇸 USA 1194♠♥2-2+6
-3.8Round 4🇺🇸 USA 1211NT♣7+3-6
-4.0Round 16🇦🇪 U.A.E.283♥♠A-1-5
-4.0Round 17🇳🇿 NEW ZEALAND23NT♥8-3-7
-4.1Round 8🇫🇷 FRANCE316NT♠2+1-1
-4.2Round 5🇩🇰 DENMARK33♥♥10-1-12
-4.3Round 4🇺🇸 USA 1292♠♥K+2-10
-4.4Round 2🇮🇪 IRELAND233NT♣10=+0
-4.4Round 3🇧🇬 BULGARIA33NT♠4+1-7
-4.4Round 8🇫🇷 FRANCE184♠♣K-2+0
-4.4Round 14🇦🇺 AUSTRALIA224♥♣J-1-12
-4.5Round 4🇺🇸 USA 1172♥♦10-2+1
-4.5Round 13🇮🇹 ITALY42♦♣6+4-17
-4.6Round 17🇳🇿 NEW ZEALAND104♥♠5+2-13
-4.7Round 13🇮🇹 ITALY114♠♣K+1+0
-4.9Round 21🇯🇵 JAPAN134♣♦6-2-2
-5.1Round 3🇧🇬 BULGARIA63♦♥6=+0
-5.1Round 4🇺🇸 USA 1243NT♠A-1-8
-5.3Round 7🇺🇸 USA 224♥♥5+1-1
-5.4Round 10🇵🇱 POLAND233NT♣2+2+0
-5.4Round 14🇦🇺 AUSTRALIA303NT♠2+1-7
-5.5Round 20🇨🇳 CHINA254♠♣3=-6
-5.7Round 20🇨🇳 CHINA224♥♠J+1+10
-5.8Round 8🇫🇷 FRANCE225♦x♥3=-3
-6.1Round 11🇳🇱 NETHERLANDS67♠♥K=+0
-6.2Round 10🇵🇱 POLAND274♥♣K+2-11
-6.2Round 16🇦🇪 U.A.E.254♠♥A=-8
-6.2Round 17🇳🇿 NEW ZEALAND132♦x♣K-2-9
-6.7Round 2🇮🇪 IRELAND286♥♠5=+0
-6.9Round 16🇦🇪 U.A.E.183NT♠4+2-2
-6.9Round 20🇨🇳 CHINA274♥♣K+2-1
-7.0Round 5🇩🇰 DENMARK164♠♦J-2-7
-7.1Round 21🇯🇵 JAPAN123NT♥6=-10
-7.3Round 10🇵🇱 POLAND294♣♠K=-6
-7.4Round 17🇳🇿 NEW ZEALAND164♥♦7-1-12
-8.3Round 7🇺🇸 USA 234NT♣10-1-13
-8.4Round 8🇫🇷 FRANCE194♠♣2+3-17
-9.0Round 5🇩🇰 DENMARK14♥♣10+1+0
-9.3Round 13🇮🇹 ITALY62♦x♠5-2-11
-9.5Round 20🇨🇳 CHINA202♠x♥A-3-5
-9.6Round 16🇦🇪 U.A.E.275♥♦2+1-11
-10.2Round 20🇨🇳 CHINA244♠x♥6-3-9
-10.6Round 20🇨🇳 CHINA216♣♥9-2-11
-10.7Round 7🇺🇸 USA 255♦♦5=-3
-10.7Round 8🇫🇷 FRANCE296♦♥9-1-17
-11.4Round 14🇦🇺 AUSTRALIA255♠x♦6-3-14
-12.4Round 17🇳🇿 NEW ZEALAND54♥♦10=+0