🇯🇵 YAMAMOTO Naoya · JAPAN

59rank
+29.7Butler · 216 bds
+0.14per board
±4.7swing
+0.87vs par /bd · #19/134
+0.27adjusted /bd
Butler per round: -9.1 2.9 5.2 15.4 -30.3 42.6 3.8 19 10.2 -11.9 -18.8 -17.9 3 2.1 -3.8 16.4 3.8 -2.9by round

vs par split: bidding +0.95 · play -0.10

Strength of schedule: opponents averaged +0.14/bd (a tough draw) → opponent-adjusted +0.27/bd

Card play — on target: opening leads 73.8% #120 of 134 · declarer play 73.1% #87 of 134 · defence 82.0% #74 of 134

Bidding activity — not a pass: 35.6% #127 of 134 (213/599)

Card play by contract type — on target
vs NTvs a suit
Opening leads52.4% (21)85.0% (40)
Declarer play66.7% (12)75.0% (40)
Defence90.6% (32)78.9% (90)

Opening leads by suit led: ♠ 61.9% (21) · ♥ 88.9% (9) · ♦ 70.6% (17) · ♣ 85.7% (14)

vs par by strain: NT +0.10 (59) · a suit +1.14 (156)

vs par by level: part-score -0.25 (84) · game +0.93 (112) · slam +5.26 (19)

By role: declaring +0.33/bd (-1.41 vs par · 93) · defending -0.03/bd (+2.57 vs par · 122)

By vulnerability: vulnerable +0.35/bd (+0.57 vs par · 108) · not vulnerable -0.08/bd (+1.16 vs par · 108)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2Y.SongH.Coban – M.KalayciOpen12-9.1-0.76+1.00
Round 3Y.SongL.Lee – B.YangClosed12+2.9+0.24+0.00
Round 4Y.SongI.Bilusic – E.EvacicOpen12+5.2+0.43+1.08
Round 5Y.SongF.Guerra – B.EtcheparebordaClosed12+15.4+1.28+2.83
Round 6Y.Song? – ?Closed12-30.3-2.52+3.50
Round 7Y.SongO.Laufer – D.LiOpen12+42.6+3.55+4.92
Round 8Y.SongO.Toledano – A.ZamirClosed12+3.8+0.32+0.67
Round 10Y.SongA.Boulin – T.GuilleminClosed12+19.0+1.58+0.42
Round 11Y.SongY.Wen – B.JiangClosed12+10.2+0.85+0.50
Round 12Y.SongP.Skordas – F.KritsalisOpen12-11.9-0.99+0.42
Round 13Y.SongF.Kolesnik – Z.GrossackOpen12-18.8-1.57+1.92
Round 16Y.SongA.Lin – R.JengOpen12-17.9-1.49-0.25
Round 17Y.SongA.Sandin – S.ClementssonClosed12+3.0+0.25-0.50
Round 18Y.SongF.Doermer – S.FarwigClosed12+2.1+0.18+1.50
Round 19Y.SongR.Luhaorg – R.PiirisildOpen12-3.8-0.32-1.42
Round 20Y.SongG.Giubilo – G.GiubiloClosed12+16.4+1.37-0.25
Round 22Y.SongA.Hutton – L.SandersonClosed12+3.8+0.32-1.83
Round 23Y.SongK.Cichy – K.KopkaOpen12-2.9-0.24+1.08

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 13🇺🇸 USA167♥♥3-1+17
+12.5Round 5🇦🇷 ARGENTINA73♠x♦A+1+13
+12.1Round 11🇨🇳 CHINA76♥♦A-2+13
+11.2Round 4🇭🇷 CROATIA176♠♣2-2+14
+10.7Round 18🇩🇪 GERMANY136♠♠8=+0
+9.6Round 7🇨🇦 CANADA94♠♣K-1+12
+9.5Round 16🇺🇸 USA2163NTx♥9-2+12
+8.9Round 12🇬🇷 GREECE245♦x♠A-3+9
+8.8Round 7🇨🇦 CANADA14♥x♠A-4+8
+8.7Round 7🇨🇦 CANADA23NT♥6=+10
+7.6Round 22🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND164♠♣J-1+9
+7.5Round 11🇨🇳 CHINA26♠♦A-4+12
+7.3Round 3🇸🇬 SINGAPORE103NT♥8=-1
+7.2Round 17🇸🇪 SWEDEN73NT♥T-2+12
+7.1Round 13🇺🇸 USA193NT♣A-3+10
+7.0Round 3🇸🇬 SINGAPORE126♣x♠Q-3+12
+6.7Round 10🇫🇷 FRANCE213NT♣5=-1
+6.4Round 8🇮🇱 ISRAEL175♣x♠J-3+2
+6.3Round 22🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND154♠♥8+1+0
+6.2Round 16🇺🇸 USA2154♠♦A=+1
+6.1Round 10🇫🇷 FRANCE246♦♥A=-2
+6.0Round 20🇮🇹 ITALY201♠♦K-2+3
+6.0Round 20🇮🇹 ITALY232♥♣T=+6
+5.9Round 7🇨🇦 CANADA53NT♠7=+3
+5.9Round 12🇬🇷 GREECE194♥♦8-1+5
+5.9Round 18🇩🇪 GERMANY156♦♣A=+7
+5.6Round 19🇪🇪 ESTONIA116♠♥J-3+15
+5.4Round 20🇮🇹 ITALY213NT♦4=+0
+5.3Round 10🇫🇷 FRANCE194♠x♣A-1+9
+5.1Round 4🇭🇷 CROATIA233NT♠3=+3
+5.1Round 7🇨🇦 CANADA45♣♠T-2+8
+4.9Round 3🇸🇬 SINGAPORE115♦♥Q-3+12
+4.8Round 4🇭🇷 CROATIA194♥x♣Q-2+3
+4.8Round 8🇮🇱 ISRAEL164♥♣3-1+12
+4.8Round 18🇩🇪 GERMANY204♥♦6-2+8
+4.5Round 6🇳🇱 NETHERLANDS204♠♦5+2+13
+4.4Round 4🇭🇷 CROATIA143NT♠6-2+6
+4.1Round 8🇮🇱 ISRAEL203NT♦7-2+8
+4.1Round 19🇪🇪 ESTONIA103NT♠2-1+6
+4.0Round 5🇦🇷 ARGENTINA16♠♠4=+0
+4.0Round 20🇮🇹 ITALY153♠♠3+1+2
+3.9Round 2🇹🇷 TURKIYE191NT♥T+2+6
+3.9Round 17🇸🇪 SWEDEN33NT♠K-1+12
+3.9Round 18🇩🇪 GERMANY162♣♦K-2+8
+3.8Round 10🇫🇷 FRANCE185♠♠3=+4
+3.8Round 12🇬🇷 GREECE163NT♥5=+7
+3.7Round 7🇨🇦 CANADA66♠♦6-3+12
+3.6Round 19🇪🇪 ESTONIA73NT♣5-3-5
+3.4Round 4🇭🇷 CROATIA243NT♥Q=+0
+3.4Round 7🇨🇦 CANADA122♥♠3=+0
+3.4Round 23🇵🇱 POLAND113♣♥Q=+5
+3.0Round 5🇦🇷 ARGENTINA44♦♠A=+8
+3.0Round 11🇨🇳 CHINA42♦♣A-3-8
+3.0Round 19🇪🇪 ESTONIA13♠♥7+1+6
+3.0Round 23🇵🇱 POLAND123♦♥4=+0
+2.9Round 5🇦🇷 ARGENTINA93NT♣2+2+13
+2.8Round 13🇺🇸 USA184♠♣3+1+0
+2.7Round 11🇨🇳 CHINA82NT♣7-2+6
+2.6Round 19🇪🇪 ESTONIA23NT♠9=-2
+2.3Round 7🇨🇦 CANADA102♠♣J+1+0
+2.3Round 8🇮🇱 ISRAEL244♥♠A-2+5
+2.3Round 17🇸🇪 SWEDEN53NT♠7+2+0
+2.3Round 18🇩🇪 GERMANY184♦♠Q+3+5
+2.2Round 2🇹🇷 TURKIYE243♠♣6-1+4
+2.2Round 20🇮🇹 ITALY193♥♣A=+0
+2.1Round 22🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND144♥x♦A-1+5
+2.1Round 23🇵🇱 POLAND104♠♦2+1+0
+2.0Round 5🇦🇷 ARGENTINA11Pass+4
+2.0Round 6🇳🇱 NETHERLANDS133♣♠J=+0
+1.9Round 2🇹🇷 TURKIYE174♥♦A+1+0
+1.8Round 2🇹🇷 TURKIYE144♣♠6-1+6
+1.7Round 10🇫🇷 FRANCE172♠♣5=-1
+1.7Round 16🇺🇸 USA2134♠♣3+2+1
+1.7Round 19🇪🇪 ESTONIA62♠♦T=+0
+1.7Round 22🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND236♥♦A=+0
+1.6Round 23🇵🇱 POLAND52♠♥7-1-5
+1.5Round 17🇸🇪 SWEDEN102♠♦Q-2+2
+1.4Round 17🇸🇪 SWEDEN124♥♦5=+0
+1.4Round 23🇵🇱 POLAND73♦♥K=+10
+1.2Round 5🇦🇷 ARGENTINA62♦♠7=+0
+1.1Round 11🇨🇳 CHINA103NT♠9=+2
+1.1Round 23🇵🇱 POLAND82♥♣3=-1
+1.0Round 3🇸🇬 SINGAPORE24♥♠2=-1
+1.0Round 3🇸🇬 SINGAPORE63♥♣K=+0
+1.0Round 5🇦🇷 ARGENTINA21NT♣J=-2
+1.0Round 8🇮🇱 ISRAEL134♥♣Q-1+6
+1.0Round 12🇬🇷 GREECE201NT♠T-2+2
+0.9Round 10🇫🇷 FRANCE231NT♥3=+1
+0.9Round 20🇮🇹 ITALY161NT♠2-1-1
+0.9Round 20🇮🇹 ITALY224♥♣2-1+5
+0.9Round 22🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND184♠♠A=+0
+0.8Round 2🇹🇷 TURKIYE184♠♦Q-1+5
+0.8Round 5🇦🇷 ARGENTINA102♠♣K=+1
+0.8Round 6🇳🇱 NETHERLANDS243♠♥Q-1+2
+0.8Round 12🇬🇷 GREECE232♠♣K+1+0
+0.7Round 4🇭🇷 CROATIA223NT♥K+1-1
+0.7Round 22🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND132♥♦3-1+0
+0.6Round 10🇫🇷 FRANCE153NT♥2+2+0
+0.6Round 13🇺🇸 USA1102♦♣K-1-1
+0.6Round 16🇺🇸 USA2213♠♥J-1-2
+0.5Round 3🇸🇬 SINGAPORE32♠♦9-1+3
+0.5Round 8🇮🇱 ISRAEL142♣♠9=+1
+0.5Round 18🇩🇪 GERMANY224♥♦7-1+5
+0.5Round 23🇵🇱 POLAND14♠♦7+1+0
+0.4Round 7🇨🇦 CANADA81NT♠3=+1
+0.3Round 4🇭🇷 CROATIA132♠♣4+1+0
+0.3Round 6🇳🇱 NETHERLANDS233NT♦7=-1
+0.3Round 8🇮🇱 ISRAEL224♠♣K=+0
+0.3Round 10🇫🇷 FRANCE134♥♣6-1+6
+0.2Round 22🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND193NT♠7=-1
+0.1Round 16🇺🇸 USA2172♥♦6+1+7
+0.1Round 17🇸🇪 SWEDEN13♦♥K-2+1
+0.1Round 20🇮🇹 ITALY181NT♥6=+1
+0.1Round 22🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND242♠♣6=-1
+0.1Round 23🇵🇱 POLAND31♠♦2=+5
+0.0Round 2🇹🇷 TURKIYE203♠♦7+1+1
+0.0Round 6🇳🇱 NETHERLANDS214♥♠K+1+11
+0.0Round 7🇨🇦 CANADA32♥♥2-2+0
+0.0Round 8🇮🇱 ISRAEL215♥♦K=+0
-0.1Round 20🇮🇹 ITALY134♠♦A+2-13
-0.2Round 10🇫🇷 FRANCE204♥♣K=+1
-0.2Round 16🇺🇸 USA2231NT♣3-1+0
-0.3Round 5🇦🇷 ARGENTINA54♠♦Q=+11
-0.3Round 7🇨🇦 CANADA114♥♣Q+2+11
-0.3Round 18🇩🇪 GERMANY192♦♥K+1+0
-0.3Round 22🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND213NT♠5+2-12
-0.4Round 3🇸🇬 SINGAPORE91NT♣K=-2
-0.5Round 5🇦🇷 ARGENTINA84♠♥K+1+0
-0.5Round 10🇫🇷 FRANCE221NT♣6-1-1
-0.5Round 17🇸🇪 SWEDEN62♣♥Q-2-6
-0.6Round 8🇮🇱 ISRAEL154♠♣K+1-1
-0.6Round 17🇸🇪 SWEDEN24♥♠J+1+0
-0.7Round 3🇸🇬 SINGAPORE53♥♠A-1-3
-0.7Round 11🇨🇳 CHINA62♠♠5+1-6
-0.7Round 11🇨🇳 CHINA124♠♥A=+0
-0.7Round 16🇺🇸 USA2193NT♠3+1+12
-0.8Round 17🇸🇪 SWEDEN93NT♥2-2-6
-0.9Round 4🇭🇷 CROATIA204♠♥8=-1
-0.9Round 6🇳🇱 NETHERLANDS182♣♦Q-2+5
-0.9Round 19🇪🇪 ESTONIA94♠x♦6-2-9
-0.9Round 20🇮🇹 ITALY245♣♠A=+1
-1.2Round 3🇸🇬 SINGAPORE13♣♦A+1+0
-1.2Round 17🇸🇪 SWEDEN43♦♣5=-10
-1.3Round 2🇹🇷 TURKIYE153♠♥A+1-1
-1.3Round 13🇺🇸 USA121NT♠3+1+1
-1.3Round 19🇪🇪 ESTONIA43NT♥3=-1
-1.4Round 2🇹🇷 TURKIYE234♥♥2+2+13
-1.5Round 10🇫🇷 FRANCE143♦♣A-1-6
-1.7Round 13🇺🇸 USA173♠♦3=+10
-1.7Round 13🇺🇸 USA1122♦♠2=+1
-1.8Round 6🇳🇱 NETHERLANDS224♥♠6+2+13
-1.8Round 11🇨🇳 CHINA33♠♣5+1-1
-1.8Round 20🇮🇹 ITALY173♣♥T=+0
-1.9Round 18🇩🇪 GERMANY145♥♠K+1-1
-2.2Round 12🇬🇷 GREECE212♠♣7=-5
-2.3Round 11🇨🇳 CHINA11♦x♦T-1+0
-2.4Round 12🇬🇷 GREECE223♠x♦K-1-6
-2.5Round 5🇦🇷 ARGENTINA124♥♣6=-6
-2.5Round 19🇪🇪 ESTONIA32♥♦T+2-6
-2.5Round 22🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND226♥♦T=+0
-2.7Round 3🇸🇬 SINGAPORE73♠♥K=+0
-2.7Round 11🇨🇳 CHINA52♠♦J=-6
-2.7Round 17🇸🇪 SWEDEN112♠♥K=+0
-2.7Round 23🇵🇱 POLAND24♥♣A-2-1
-2.8Round 2🇹🇷 TURKIYE163NT♠2+3-1
-2.8Round 3🇸🇬 SINGAPORE83NT♠5=-7
-2.8Round 18🇩🇪 GERMANY243♦♣4+1+0
-3.0Round 23🇵🇱 POLAND64♠♣K-1-5
-3.1Round 2🇹🇷 TURKIYE224♠♦Q+1+0
-3.1Round 11🇨🇳 CHINA113NT♠T+1-7
-3.2Round 8🇮🇱 ISRAEL183NT♦5+2-1
-3.3Round 16🇺🇸 USA2244♥♣6-2-5
-3.5Round 6🇳🇱 NETHERLANDS195♦x♥K-3+4
-3.5Round 12🇬🇷 GREECE183NT♠Q+2-1
-3.5Round 22🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND204♥♠5=-9
-3.7Round 23🇵🇱 POLAND46♠♦8=+13
-3.8Round 16🇺🇸 USA2143♦♠A-1-9
-4.0Round 4🇭🇷 CROATIA183♠♥Q-1+1
-4.0Round 12🇬🇷 GREECE154♥♠K-2-8
-4.2Round 10🇫🇷 FRANCE161NTx♠A-2-5
-4.7Round 12🇬🇷 GREECE134♥♦3+1+16
-4.7Round 13🇺🇸 USA155♠♦3=-1
-4.9Round 2🇹🇷 TURKIYE215♥♠A+1-12
-4.9Round 11🇨🇳 CHINA93NT♦3=+1
-4.9Round 19🇪🇪 ESTONIA83♦♥J=+0
-5.0Round 7🇨🇦 CANADA74♠♥T-1-6
-5.1Round 12🇬🇷 GREECE173NT♦7+1+0
-5.3Round 13🇺🇸 USA1113NT♠J=+1
-5.5Round 8🇮🇱 ISRAEL234♥♦K-2-13
-5.5Round 18🇩🇪 GERMANY173NT♦K=+0
-5.6Round 4🇭🇷 CROATIA153♠♥T+1-10
-6.2Round 2🇹🇷 TURKIYE131NT♠4+3-9
-6.3Round 8🇮🇱 ISRAEL194♠♥K=-11
-6.3Round 18🇩🇪 GERMANY234♠♦2-1-6
-6.3Round 19🇪🇪 ESTONIA55♠♣J-1-13
-6.3Round 20🇮🇹 ITALY143NT♥T-3-7
-6.4Round 4🇭🇷 CROATIA163♠♦J+2-2
-6.4Round 6🇳🇱 NETHERLANDS156♦♣T=+12
-6.7Round 23🇵🇱 POLAND94♥♠A+1-8
-6.9Round 6🇳🇱 NETHERLANDS165♠x♣A-3+0
-7.2Round 13🇺🇸 USA133NT♠5=+0
-7.6Round 17🇸🇪 SWEDEN83NT♥Q-2-11
-7.8Round 4🇭🇷 CROATIA216♦x♥5-2+0
-7.8Round 16🇺🇸 USA2206♠♣A=+0
-8.5Round 19🇪🇪 ESTONIA123NT♥5+1-8
-8.7Round 5🇦🇷 ARGENTINA34♥♣3=-8
-9.2Round 6🇳🇱 NETHERLANDS143♠x♦A-3-9
-9.2Round 6🇳🇱 NETHERLANDS174♥♠K=-8
-9.2Round 18🇩🇪 GERMANY211NTx♠Q-2-8
-9.3Round 16🇺🇸 USA2181♥x♥6-3-9
-9.5Round 22🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND172♠x♦6=-13
-10.2Round 13🇺🇸 USA113NT♠4=-3
-10.4Round 12🇬🇷 GREECE146♥♦5-2-14
-10.9Round 16🇺🇸 USA2227♥♠K=-11
-11.0Round 3🇸🇬 SINGAPORE43NT♣5-2-13
-11.2Round 13🇺🇸 USA143NT♥5-1-12