🇯🇵 KOBAYASHI Yasushi · JAPAN

53rank
+7.7Butler · 156 bds
+0.05per board
±4.1swing
+0.01vs par /bd · #58/126
+0.33adjusted /bd
Butler per round: -0.4 -2.2 5.6 -30.8 17.9 -16.5 -6.1 -9.9 2.3 13.7 17.5 8 8.6by round

vs par split: bidding -0.15 · play +0.19

Strength of schedule: opponents averaged +0.28/bd (a tough draw) → opponent-adjusted +0.33/bd

Card play — on target: opening leads 78.6% #103 of 126 · declarer play 90.9% #3 of 125 · defence 81.9% #105 of 126

Card play by contract type — on target
vs NTvs a suit
Opening leads66.7% (9)81.8% (33)
Declarer play85.7% (7)92.3% (26)
Defence76.2% (21)83.9% (62)

Opening leads by suit led: ♠ 80.0% (10) · ♥ 90.9% (11) · ♦ 70.0% (10) · ♣ 72.7% (11)

vs par by strain: NT -0.80 (39) · a suit +0.32 (116)

vs par by level: part-score -0.60 (62) · game +0.00 (76) · slam +2.53 (17)

By role: declaring +0.18/bd (-2.53 vs par · 72) · defending -0.06/bd (+2.19 vs par · 84)

By vulnerability: vulnerable -0.04/bd (-0.53 vs par · 78) · not vulnerable +0.13/bd (+0.55 vs par · 78)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1N.NishidaA.Erikson – Y.PyykkoOpen12-0.4-0.03+1.92
Round 4N.NishidaT.Gotard – M.EggelingOpen12-2.2-0.18-0.33
Round 6N.NishidaP.Poizat – R.PoizatClosed12+5.6+0.47+2.67
Round 8N.NishidaR.Ritmeijer – M.TichaClosed12-30.8-2.57-2.17
Round 10N.NishidaI.Grzejdziak – S.GrzejdziakClosed12+17.9+1.49-0.50
Round 11N.NishidaZ.Fu – Y.ZhangClosed12-16.5-1.38-0.17
Round 13N.NishidaF.Assis – J.MeirelesClosed12-6.1-0.51-1.50
Round 16N.NishidaG.Karakolev – M.MitovskaOpen12-9.9-0.83-0.83
Round 17N.NishidaA.Gromov – V.GromovaClosed12+2.3+0.19-1.75
Round 18N.NishidaL.Honti – K.MezeiClosed12+13.7+1.14+1.42
Round 21N.NishidaM.Seamon – S.MossClosed12+17.5+1.46+0.17
Round 22N.NishidaH.Caspersen – S.FarholtClosed12+8.0+0.67-0.58
Round 23N.NishidaY.Sagiv – M.PoplilovOpen12+8.6+0.72+1.83

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
+11.0Round 6🇫🇷 FRANCE216NT♠10-2+13
+9.7Round 10🇵🇱 POLAND244♥♣5=+11
+9.1Round 21🇺🇸 USA26♥♦2=+0
+8.3Round 22🇩🇰 DENMARK154♣♥K=+9
+8.2Round 16🇧🇬 BULGARIA132♠♦K+2+10
+7.1Round 11🇨🇳 CHINA56♥♦5-1+15
+7.1Round 16🇧🇬 BULGARIA186♦♠9-1+17
+7.0Round 18🇭🇺 HUNGARY215♥x♠2-2+8
+7.0Round 21🇺🇸 USA96♥♦10=+0
+6.8Round 18🇭🇺 HUNGARY176NT♠9-1+14
+6.6Round 17🇷🇺 RUSSIA14♠♥J+3+14
+6.5Round 1🇸🇪 SWEDEN104♠♥K-1+1
+6.5Round 18🇭🇺 HUNGARY165♥x♠A-1+12
+5.7Round 21🇺🇸 USA45♠x♥K=+5
+5.4Round 1🇸🇪 SWEDEN13NT♠6+4+14
+5.4Round 10🇵🇱 POLAND215♥♣J-2+2
+4.9Round 17🇷🇺 RUSSIA27♥♠9=+0
+4.9Round 18🇭🇺 HUNGARY245♦♣10-1+10
+4.7Round 10🇵🇱 POLAND166♠♦J-1+11
+4.5Round 23🇮🇱 ISRAEL34♠♥6-1+5
+4.4Round 8🇳🇱 NETHERLANDS173NT♠9=+0
+4.4Round 10🇵🇱 POLAND134♠x♥Q-3-12
+4.3Round 22🇩🇰 DENMARK213♠♣10-1+5
+4.3Round 23🇮🇱 ISRAEL114♥♦K-1+10
+4.2Round 1🇸🇪 SWEDEN56♦♣5=-2
+3.9Round 4🇩🇪 GERMANY133NT♥6-3+10
+3.9Round 17🇷🇺 RUSSIA42♠♦Q-2+3
+3.8Round 13🇧🇷 BRAZIL72♥♦6-1-1
+3.7Round 23🇮🇱 ISRAEL102♦♣6=+5
+3.4Round 1🇸🇪 SWEDEN114♦♣7+2+6
+3.0Round 6🇫🇷 FRANCE162NT♦6-2+5
+3.0Round 6🇫🇷 FRANCE233NT♦7+4+16
+3.0Round 8🇳🇱 NETHERLANDS244♠♥5=+0
+3.0Round 23🇮🇱 ISRAEL87♦♣9=-2
+2.8Round 4🇩🇪 GERMANY222♦♥4+1+6
+2.6Round 21🇺🇸 USA64♠♣2+1+0
+2.5Round 13🇧🇷 BRAZIL84♥♦6=+0
+2.5Round 23🇮🇱 ISRAEL92♥♦Q+1+7
+2.4Round 1🇸🇪 SWEDEN124♥♠Q-1+5
+2.4Round 6🇫🇷 FRANCE223♣♦2-2+5
+2.4Round 13🇧🇷 BRAZIL24♥♠6=+0
+2.2Round 13🇧🇷 BRAZIL44♠x♣K-2+12
+2.2Round 23🇮🇱 ISRAEL72♠♦4+1+1
+2.0Round 6🇫🇷 FRANCE145♥♠J+1+11
+1.8Round 11🇨🇳 CHINA103NT♦5=-1
+1.6Round 18🇭🇺 HUNGARY233♣♥J+1+0
+1.5Round 1🇸🇪 SWEDEN93NT♠2+2+0
+1.4Round 23🇮🇱 ISRAEL26♣♠K+1+13
+1.2Round 4🇩🇪 GERMANY194♥♣5+1+8
+1.2Round 4🇩🇪 GERMANY243NT♠6-2+0
+1.2Round 21🇺🇸 USA82♥♣A+1+0
+1.2Round 22🇩🇰 DENMARK133♦♦5=+0
+1.2Round 22🇩🇰 DENMARK162♠♦2=+0
+1.1Round 16🇧🇬 BULGARIA232♥♦K=+11
+1.1Round 16🇧🇬 BULGARIA243♦♥K+1+7
+1.1Round 18🇭🇺 HUNGARY204♠♣Q+2-13
+1.1Round 18🇭🇺 HUNGARY222♥♣3+2+1
+1.0Round 8🇳🇱 NETHERLANDS232♠♥9+3+10
+1.0Round 10🇵🇱 POLAND152♥♣A+2+1
+1.0Round 13🇧🇷 BRAZIL35♥♠K-3-3
+0.9Round 4🇩🇪 GERMANY234♥♦5+3-2
+0.9Round 11🇨🇳 CHINA114♥♠K+1+0
+0.8Round 10🇵🇱 POLAND192♠♥9-1-1
+0.8Round 21🇺🇸 USA114♠♦K=+3
+0.7Round 11🇨🇳 CHINA74♠♣A=+13
+0.7Round 13🇧🇷 BRAZIL64♥♦Q+1+0
+0.6Round 16🇧🇬 BULGARIA153♦♣K+1-7
+0.5Round 10🇵🇱 POLAND183♠♥4-1-1
+0.4Round 11🇨🇳 CHINA94♠♣A+1+0
+0.3Round 22🇩🇰 DENMARK173NT♠2=-1
+0.3Round 22🇩🇰 DENMARK194♥♦5-3-10
+0.1Round 4🇩🇪 GERMANY183NT♥3+1-1
+0.1Round 6🇫🇷 FRANCE153NT♥7=+1
+0.1Round 13🇧🇷 BRAZIL123NT♦10=+1
+0.1Round 17🇷🇺 RUSSIA94♣x♠K-1-5
+0.1Round 21🇺🇸 USA32NT♥J+3-5
-0.0Round 10🇵🇱 POLAND172♥♣9+2+6
+0.0Round 17🇷🇺 RUSSIA53NT♥6+1-11
-0.0Round 17🇷🇺 RUSSIA124♠♦10+1+0
-0.1Round 8🇳🇱 NETHERLANDS194♥♠6+1+11
-0.2Round 17🇷🇺 RUSSIA72♥♦Q-1+0
-0.2Round 22🇩🇰 DENMARK143NT♦10+2+0
-0.2Round 23🇮🇱 ISRAEL122♥♥J-1+2
-0.3Round 22🇩🇰 DENMARK185♥♦5+1-11
-0.3Round 22🇩🇰 DENMARK201NT♣K=+2
-0.3Round 22🇩🇰 DENMARK223NT♠2+2-1
-0.3Round 23🇮🇱 ISRAEL13NT♠3+1+1
-0.4Round 8🇳🇱 NETHERLANDS13Pass-4
-0.4Round 10🇵🇱 POLAND204♠♣K+1+0
-0.5Round 13🇧🇷 BRAZIL104♥♠Q+2-12
-0.6Round 4🇩🇪 GERMANY143♦♦3=-5
-0.6Round 21🇺🇸 USA74♥♦A+1+0
-0.6Round 21🇺🇸 USA124♠♥A-1+6
-0.7Round 6🇫🇷 FRANCE204♠♦3+2-13
-0.7Round 16🇧🇬 BULGARIA143NT♥8-1-5
-0.7Round 16🇧🇬 BULGARIA192♠♦4+2-1
-0.7Round 17🇷🇺 RUSSIA83♦♥3+1+0
-0.8Round 21🇺🇸 USA54♠♥6=-1
-0.8Round 23🇮🇱 ISRAEL44♠♥10-1-6
-0.9Round 18🇭🇺 HUNGARY143♦♣7+3+12
-1.0Round 1🇸🇪 SWEDEN22♠♣5=-1
-1.0Round 4🇩🇪 GERMANY202♥♦A=-6
-1.0Round 11🇨🇳 CHINA42♠♥A+2-10
-1.0Round 13🇧🇷 BRAZIL114♥♣Q+1+0
-1.1Round 4🇩🇪 GERMANY211NT♥4+1-1
-1.1Round 6🇫🇷 FRANCE244NT♠8+1+0
-1.2Round 11🇨🇳 CHINA64♠♣6+1+0
-1.4Round 8🇳🇱 NETHERLANDS163♥♥9-1-6
-1.4Round 18🇭🇺 HUNGARY152♥♦A+1-7
-1.5Round 8🇳🇱 NETHERLANDS212♠♥7-2-6
-1.5Round 8🇳🇱 NETHERLANDS223♠♥6=+0
-1.8Round 11🇨🇳 CHINA123♥♦K+1-6
-1.9Round 1🇸🇪 SWEDEN34♠♣J+2+10
-1.9Round 1🇸🇪 SWEDEN46NT♣9=+0
-2.0Round 17🇷🇺 RUSSIA63♦♥4-1-10
-2.1Round 10🇵🇱 POLAND223NT♠6+3-12
-2.1Round 16🇧🇬 BULGARIA201NT♣9=-11
-2.2Round 6🇫🇷 FRANCE173NT♠4+1+0
-2.2Round 10🇵🇱 POLAND233♥♣J-1-5
-2.3Round 18🇭🇺 HUNGARY193NT♣K+1-12
-2.4Round 17🇷🇺 RUSSIA32♥♣J=-6
-2.5Round 21🇺🇸 USA103♣♠8-2+2
-2.7Round 6🇫🇷 FRANCE194♥♠2=+1
-2.8Round 8🇳🇱 NETHERLANDS143♦♠K-1+2
-2.9Round 4🇩🇪 GERMANY153NT♠10+3-1
-3.0Round 13🇧🇷 BRAZIL93NT♣5-1-5
-3.0Round 22🇩🇰 DENMARK243NT♥Q+1+0
-3.1Round 4🇩🇪 GERMANY174♥♣A+2-11
-3.3Round 1🇸🇪 SWEDEN71NT♣3+3-1
-3.4Round 16🇧🇬 BULGARIA221NT♠10-2-3
-3.4Round 23🇮🇱 ISRAEL53♥♠K+1-1
-3.5Round 17🇷🇺 RUSSIA104♥♣J-1-6
-3.5Round 22🇩🇰 DENMARK233♦♦K+1+0
-3.6Round 4🇩🇪 GERMANY163NT♥A+2-1
-3.6Round 11🇨🇳 CHINA81NT♥4-3-7
-3.7Round 11🇨🇳 CHINA15♦x♠A-3+10
-3.9Round 10🇵🇱 POLAND143NT♥Q-2-6
-4.3Round 18🇭🇺 HUNGARY134♠♥5+1+0
-4.4Round 17🇷🇺 RUSSIA112♠♣7+1+0
-4.5Round 21🇺🇸 USA14♥♠K=-8
-4.6Round 6🇫🇷 FRANCE134♦♠6+1-1
-4.6Round 6🇫🇷 FRANCE183♦♥A=-6
-4.6Round 13🇧🇷 BRAZIL52♥♦6+1-10
-5.0Round 1🇸🇪 SWEDEN62NT♦2-1-6
-5.9Round 8🇳🇱 NETHERLANDS152♥♥6+2-2
-6.2Round 16🇧🇬 BULGARIA216♠♥J=-8
-6.4Round 18🇭🇺 HUNGARY184♦♠2-1-8
-6.5Round 11🇨🇳 CHINA34♥♣K=-6
-6.6Round 16🇧🇬 BULGARIA162♥x♣K-3-9
-8.3Round 16🇧🇬 BULGARIA176♣♣7-1-11
-8.3Round 23🇮🇱 ISRAEL64♥♦6-2-13
-9.6Round 11🇨🇳 CHINA24♠♥6=-10
-9.7Round 13🇧🇷 BRAZIL16NT♠J=+0
-10.7Round 1🇸🇪 SWEDEN87♥♠K=-3
-12.4Round 8🇳🇱 NETHERLANDS206♠♥A=-14
-13.2Round 8🇳🇱 NETHERLANDS184NTxx♠K-1-17