🇺🇸 DUFFIE Cornelius · USA2

124rank
-131.9Butler · 216 bds
-0.61per board
±4.7swing
-1.13vs par /bd · #124/134
-0.48adjusted /bd
Butler per round: 8.9 -16.3 -0.1 6.9 15.4 0 -38.2 -27.2 -15.7 -10.1 -12.7 -23.3 -13 10.9 14.8 -6.7 -22.9 -2.6by round

vs par split: bidding -0.71 · play -0.43

Strength of schedule: opponents averaged +0.13/bd (a tough draw) → opponent-adjusted -0.48/bd

Card play — on target: opening leads 83.7% #54 of 134 · declarer play 85.2% #9 of 134 · defence 78.2% #110 of 134

Bidding activity — not a pass: 46.9% #24 of 134 (294/627)

Card play by contract type — on target
vs NTvs a suit
Opening leads75.0% (8)85.7% (35)
Declarer play66.7% (15)91.3% (46)
Defence70.8% (24)80.5% (77)

Opening leads by suit led: ♠ 76.9% (13) · ♥ 88.9% (9) · ♦ 75.0% (12) · ♣ 100.0% (9)

vs par by strain: NT -1.94 (50) · a suit -0.90 (164)

vs par by level: part-score -0.48 (88) · game -1.72 (105) · slam -1.05 (21)

By role: declaring -0.67/bd (-3.34 vs par · 113) · defending -0.55/bd (+1.31 vs par · 101)

By vulnerability: vulnerable -0.68/bd (-2.05 vs par · 108) · not vulnerable -0.54/bd (-0.22 vs par · 108)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1A.LinB.Kristensen – K.RosenbergClosed12+8.9+0.74-0.92
Round 2Q.WanI.Pollatou – I.PapaspyrouOpen12-16.3-1.36-2.17
Round 3A.LinS.Semberoiz – R.NunezOpen12-0.1-0.01+0.08
Round 5Q.WanS.Basu – S.SarkarClosed12+6.9+0.58-1.25
Round 6Q.WanJ.Tomlin – D.GueClosed12+15.4+1.28-4.67
Round 8Q.WanG.Giubilo – G.GiubiloOpen12+0.0+0.00-0.42
Round 9Q.WanJ.Freeman – V.LamoureuxClosed12-38.2-3.18-1.08
Round 10A.LinY.Poon – C.HuiOpen12-27.2-2.27-1.25
Round 12Q.WanI.Baniri – T.LoonsteinOpen12-15.7-1.31-2.00
Round 13A.LinH.Coban – M.KalayciOpen12-10.1-0.84+2.17
Round 14A.LinY.Caris – P.DupontClosed12-12.7-1.06-1.08
Round 15Q.WanK.Cichy – K.KopkaOpen12-23.3-1.94-3.25
Round 16Q.WanF.Nishita – M.NakamutaClosed12-13.0-1.08-0.17
Round 17Q.WanY.Wen – B.JiangClosed12+10.9+0.91+1.17
Round 18A.LinS.Anoyrkatis – D.WinterOpen12+14.8+1.23+0.58
Round 20Q.WanX.Teo – T.WuClosed12-6.7-0.56-2.58
Round 22A.LinC.Mann – E.HanssonClosed12-22.9-1.91-4.75
Round 23Q.WanV.Leskovar – M.FerencaClosed12-2.6-0.22+1.17

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
+13.0Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND157♦x♣A-1+16
+11.3Round 15🇵🇱 POLAND97NT♣2-2+20
+9.9Round 16🇯🇵 JAPAN193♦♠5+2+15
+9.9Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND224♥♦5=+11
+8.9Round 3🇦🇷 ARGENTINA124♥♣5=+13
+8.8Round 23🇭🇷 CROATIA34♥x♠K-2+12
+8.7Round 14🇳🇱 NETHERLANDS236♣♦A-1+12
+8.6Round 6🇦🇺 AUSTRALIA165♦♠K=+3
+8.5Round 1🇺🇸 USA146♥♦J=+8
+8.3Round 17🇨🇳 CHINA34♠x♣Q-3-3
+7.1Round 2🇬🇷 GREECE144♥♣K=+3
+7.1Round 8🇮🇹 ITALY175♥x♣K-1+11
+6.9Round 16🇯🇵 JAPAN183NT♣6-1+10
+6.7Round 10🇭🇰 HONG KONG CHINA173NT♣J-5+9
+6.4Round 6🇦🇺 AUSTRALIA156♦♦8=-12
+6.3Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND234♠♥3-1+6
+5.8Round 1🇺🇸 USA115♠x♣K-1+0
+5.8Round 5🇮🇳 INDIA74♠x♦A-1+8
+5.7Round 6🇦🇺 AUSTRALIA194♥♦3=-1
+5.5Round 8🇮🇹 ITALY234♥♦A-2+13
+5.5Round 12🇮🇱 ISRAEL195♣x♥T-3+9
+5.2Round 16🇯🇵 JAPAN144♠♦K=+0
+5.1Round 13🇹🇷 TURKIYE33NT♥J-1+12
+5.0Round 14🇳🇱 NETHERLANDS162♦♣5=+5
+4.9Round 1🇺🇸 USA193♠♥5-1+10
+4.8Round 12🇮🇱 ISRAEL223♠♦K-1+8
+4.7Round 12🇮🇱 ISRAEL134♥♦3+1-16
+4.4Round 20🇸🇬 SINGAPORE153♣♠K-4+3
+4.2Round 15🇵🇱 POLAND84♠♣T+1+1
+4.0Round 10🇭🇰 HONG KONG CHINA144♠♦Q-1+8
+3.9Round 13🇹🇷 TURKIYE23♦♠A-1+5
+3.6Round 13🇹🇷 TURKIYE74♠♦J-1+12
+3.5Round 13🇹🇷 TURKIYE43NT♥J+3+2
+3.4Round 20🇸🇬 SINGAPORE224♥x♦K-1+7
+3.4Round 23🇭🇷 CROATIA113♣♠9=+5
+3.2Round 2🇬🇷 GREECE192♣xx♦8-1+3
+3.2Round 8🇮🇹 ITALY183NT♦A+2+1
+3.0Round 3🇦🇷 ARGENTINA44♠♦5=+0
+3.0Round 12🇮🇱 ISRAEL162♣♦2+2+0
+3.0Round 16🇯🇵 JAPAN243♥♣A=+1
+2.8Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND185♦♥8=+0
+2.7Round 2🇬🇷 GREECE182♦♣A-1-1
+2.7Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND134♠♠9+2+13
+2.7Round 20🇸🇬 SINGAPORE135♦x♥A-3-12
+2.5Round 5🇮🇳 INDIA45♦♥T-1-3
+2.5Round 5🇮🇳 INDIA62♦♠7-1+4
+2.5Round 5🇮🇳 INDIA124♥♣6=+6
+2.5Round 12🇮🇱 ISRAEL183NT♥4+1+0
+2.3Round 5🇮🇳 INDIA55♠♦Q+1-10
+2.3Round 20🇸🇬 SINGAPORE174♣♥6-1+4
+2.3Round 23🇭🇷 CROATIA24♥x♣A-2+5
+2.2Round 9🇨🇦 CANADA92♣♦3+3+1
+2.1Round 2🇬🇷 GREECE152♥♠A-2+2
+2.1Round 13🇹🇷 TURKIYE121NT♣6-1+4
+2.1Round 14🇳🇱 NETHERLANDS153♣♦K+2-8
+2.1Round 22🇸🇪 SWEDEN193NT♣Q+2+1
+2.1Round 23🇭🇷 CROATIA72♦♥K=+11
+2.0Round 3🇦🇷 ARGENTINA53♠♥3=+0
+2.0Round 6🇦🇺 AUSTRALIA243♥♥2=+1
+1.9Round 6🇦🇺 AUSTRALIA142♠♦A-3+1
+1.9Round 9🇨🇦 CANADA13♠♥8=+6
+1.8Round 6🇦🇺 AUSTRALIA223NT♦Q+3-13
+1.8Round 17🇨🇳 CHINA63♥♣K=+7
+1.7Round 14🇳🇱 NETHERLANDS184♠♦A-1+5
+1.7Round 22🇸🇪 SWEDEN236♥♣6=+0
+1.6Round 17🇨🇳 CHINA82♠♥Q+2+6
+1.6Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND212♠♣J+1+0
+1.5Round 1🇺🇸 USA184♠♥J=+0
+1.5Round 13🇹🇷 TURKIYE12♠♥A+1+10
+1.4Round 8🇮🇹 ITALY142NT♠2+1+1
+1.4Round 15🇵🇱 POLAND13NT♥J+1+1
+1.3Round 1🇺🇸 USA171NT♦A-1+0
+1.2Round 10🇭🇰 HONG KONG CHINA204♥♣K+1+0
+1.2Round 17🇨🇳 CHINA102♣♠K+1+0
+1.1Round 22🇸🇪 SWEDEN243♠♦5=+0
+1.1Round 23🇭🇷 CROATIA104♠♠9=-1
+1.0Round 3🇦🇷 ARGENTINA24♥♠7=-1
+0.9Round 2🇬🇷 GREECE163NT♦2+1-1
+0.9Round 10🇭🇰 HONG KONG CHINA231♠♦7+2+1
+0.9Round 15🇵🇱 POLAND114♠♥6-1+10
+0.9Round 20🇸🇬 SINGAPORE161NT♠5-1-1
+0.8Round 3🇦🇷 ARGENTINA7Pass+4
+0.8Round 17🇨🇳 CHINA92NT♠3-2+6
+0.7Round 14🇳🇱 NETHERLANDS192♠♥8-2+2
+0.7Round 20🇸🇬 SINGAPORE192♦♣K=-2
+0.6Round 13🇹🇷 TURKIYE101NT♦6=-1
+0.6Round 17🇨🇳 CHINA24♥♠K+1+0
+0.5Round 1🇺🇸 USA1113NT♣T+2-11
+0.5Round 3🇦🇷 ARGENTINA32♠♦T-1+3
+0.5Round 5🇮🇳 INDIA84♠♥K+1+0
+0.5Round 23🇭🇷 CROATIA14♠♦K+1+0
+0.4Round 17🇨🇳 CHINA74♦♦3+1-8
+0.3Round 5🇮🇳 INDIA33♥♦K=-4
+0.3Round 5🇮🇳 INDIA102♠♣K+1+0
+0.3Round 9🇨🇦 CANADA85♠♦2+1+11
+0.3Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND192♦♥K+1+0
+0.2Round 9🇨🇦 CANADA114♠♦Q+1-1
+0.2Round 17🇨🇳 CHINA41NT♣4+2+10
+0.1Round 20🇸🇬 SINGAPORE181NT♥8=+1
-0.0Round 2🇬🇷 GREECE202♠♦7+2-1
-0.0Round 6🇦🇺 AUSTRALIA214♥♠K+1-11
-0.0Round 8🇮🇹 ITALY214♥♣Q+1+0
-0.0Round 17🇨🇳 CHINA12♠♥9=-1
-0.3Round 3🇦🇷 ARGENTINA13♥x♣A-1+1
-0.3Round 8🇮🇹 ITALY224♠♣K=+0
-0.3Round 10🇭🇰 HONG KONG CHINA132♠♥2=-6
-0.3Round 17🇨🇳 CHINA53NT♦7=+2
-0.3Round 22🇸🇪 SWEDEN213NT♠8+2-12
-0.4Round 3🇦🇷 ARGENTINA91NT♣K=-2
-0.4Round 8🇮🇹 ITALY154♠♣A=+0
-0.4Round 9🇨🇦 CANADA123♦♥3-1-4
-0.4Round 16🇯🇵 JAPAN134♠♥3=-1
-0.5Round 9🇨🇦 CANADA102♠♦3-3+7
-0.6Round 1🇺🇸 USA133♥♣4-1+0
-0.6Round 10🇭🇰 HONG KONG CHINA162♥♠3=+0
-0.6Round 22🇸🇪 SWEDEN174♥♠8-1-10
-0.7Round 15🇵🇱 POLAND42♠♠8+2-10
-0.9Round 16🇯🇵 JAPAN172♥♠6+2+6
-0.9Round 20🇸🇬 SINGAPORE245♣♥6=+1
-1.0Round 8🇮🇹 ITALY134♥♣Q-1-6
-1.0Round 12🇮🇱 ISRAEL201NT♠T-2-2
-1.0Round 20🇸🇬 SINGAPORE201♠♦K=-5
-1.1Round 6🇦🇺 AUSTRALIA181NT♣J+2-6
-1.1Round 23🇭🇷 CROATIA53♠♣3-2-7
-1.3Round 6🇦🇺 AUSTRALIA233NT♠6+1+0
-1.3Round 14🇳🇱 NETHERLANDS174♥♦A-1+2
-1.3Round 15🇵🇱 POLAND23NT♥T+4-9
-1.3Round 22🇸🇪 SWEDEN143♠♥A-1+2
-1.4Round 10🇭🇰 HONG KONG CHINA153NT♦6+3-1
-1.4Round 12🇮🇱 ISRAEL242♠♦2+1-1
-1.4Round 17🇨🇳 CHINA124♠♣7=+0
-1.5Round 14🇳🇱 NETHERLANDS214♣♠7-1-6
-1.6Round 12🇮🇱 ISRAEL212♠♣7-1+2
-1.6Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND172NT♠3=-7
-1.8Round 5🇮🇳 INDIA21NT♣J+1+1
-1.8Round 22🇸🇪 SWEDEN185♦x♥7-3-3
-1.9Round 2🇬🇷 GREECE174♥♣8+1+0
-2.0Round 1🇺🇸 USA164♠♠T+2-13
-2.0Round 5🇮🇳 INDIA93NT♣2+3-13
-2.0Round 5🇮🇳 INDIA11Pass-4
-2.0Round 6🇦🇺 AUSTRALIA132♠♥6-1+0
-2.0Round 9🇨🇦 CANADA53♦♣3-2-5
-2.0Round 23🇭🇷 CROATIA121NT♣2=-5
-2.1Round 1🇺🇸 USA123♣♠Q+1+0
-2.1Round 6🇦🇺 AUSTRALIA174♥♠K-2-5
-2.2Round 2🇬🇷 GREECE243♥♣8-1-4
-2.3Round 8🇮🇹 ITALY245♦♠Q-2-5
-2.3Round 17🇨🇳 CHINA112NT♥Q-2-5
-2.3Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND243NT♣8-1-5
-2.5Round 1🇺🇸 USA151NT♠4+1+0
-2.5Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND204♥♦6-1-6
-2.5Round 22🇸🇪 SWEDEN226NT♠A=+0
-2.7Round 1🇺🇸 USA1123♠♦6-1-4
-2.8Round 3🇦🇷 ARGENTINA83NT♠9=-7
-3.0Round 16🇯🇵 JAPAN163♣♦A+1+0
-3.0Round 23🇭🇷 CROATIA64♠♥A-1-5
-3.2Round 16🇯🇵 JAPAN214♥♠A-1-5
-3.3Round 9🇨🇦 CANADA72NT♥2+2-1
-3.3Round 13🇹🇷 TURKIYE82♥♣A+3-6
-3.3Round 13🇹🇷 TURKIYE92♥♣9+1+0
-3.5Round 14🇳🇱 NETHERLANDS203NT♦4+2-13
-3.6Round 3🇦🇷 ARGENTINA63♣♠Q-1-5
-3.7Round 1🇺🇸 USA1104♠♥T+1-1
-3.7Round 2🇬🇷 GREECE133NT♠6+1-1
-3.7Round 23🇭🇷 CROATIA46♠♦2=+13
-3.8Round 13🇹🇷 TURKIYE54♠♦5=+0
-4.0Round 3🇦🇷 ARGENTINA115♦x♥Q-3+7
-4.0Round 5🇮🇳 INDIA16♠♠2=+0
-4.1Round 8🇮🇹 ITALY202NT♣6-2-8
-4.1Round 14🇳🇱 NETHERLANDS223NT♠7-1+5
-4.1Round 15🇵🇱 POLAND34♠♦8-1-5
-4.1Round 15🇵🇱 POLAND102NT♥Q+3-9
-4.2Round 2🇬🇷 GREECE225♦x♣A-2-8
-4.3Round 8🇮🇹 ITALY195♥x♣J-1+0
-4.3Round 22🇸🇪 SWEDEN132♥♥5=-5
-4.3Round 23🇭🇷 CROATIA83NT♣T-2-6
-4.4Round 22🇸🇪 SWEDEN204♥♦K+1-10
-4.5Round 6🇦🇺 AUSTRALIA204♠♣K+2-13
-4.6Round 12🇮🇱 ISRAEL153♥♠K=+0
-4.6Round 20🇸🇬 SINGAPORE213♥♦K=-10
-4.7Round 14🇳🇱 NETHERLANDS142♣x♦J-1+5
-4.8Round 8🇮🇹 ITALY164♥♣3-1-12
-4.9Round 16🇯🇵 JAPAN233♣♠5-1-5
-5.2Round 3🇦🇷 ARGENTINA103NT♥8-1-12
-5.3Round 12🇮🇱 ISRAEL173NT♣3-1-10
-5.3Round 13🇹🇷 TURKIYE113NT♠T=+1
-5.6Round 15🇵🇱 POLAND63♠♦A=-11
-5.6Round 22🇸🇪 SWEDEN153♥♦5-1-12
-6.0Round 9🇨🇦 CANADA24♠♦K+1-4
-6.0Round 14🇳🇱 NETHERLANDS244♥♦5-1-10
-6.0Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND164♠♣8-3-10
-6.1Round 10🇭🇰 HONG KONG CHINA246♦♥A=+2
-6.3Round 20🇸🇬 SINGAPORE143NT♥3-3-7
-6.7Round 10🇭🇰 HONG KONG CHINA213NT♣3=+1
-6.7Round 23🇭🇷 CROATIA95♥♠A=-8
-6.9Round 10🇭🇰 HONG KONG CHINA187♦x♥A-4-7
-6.9Round 16🇯🇵 JAPAN154♠♦A-1-12
-7.0Round 22🇸🇪 SWEDEN164♠♣J=-8
-7.5Round 15🇵🇱 POLAND74♠♥K-1-14
-7.7Round 15🇵🇱 POLAND54♠♣3+1-1
-7.8Round 16🇯🇵 JAPAN206♠♣K=+0
-8.1Round 12🇮🇱 ISRAEL146♥♠2=+0
-8.3Round 2🇬🇷 GREECE216♥♠A=-1
-8.3Round 10🇭🇰 HONG KONG CHINA196♣♠Q-1-12
-8.4Round 20🇸🇬 SINGAPORE234♠♦6=-10
-8.9Round 9🇨🇦 CANADA67♠♠3=+0
-9.4Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND146♥♠K-1-11
-9.7Round 10🇭🇰 HONG KONG CHINA222♥x♣K+1-10
-9.8Round 14🇳🇱 NETHERLANDS136♠♦6=-12
-10.1Round 15🇵🇱 POLAND125♣♠3-1-12
-10.3Round 9🇨🇦 CANADA34♠x♥3-2-9
-10.9Round 16🇯🇵 JAPAN227♥♥3=-11
-11.4Round 9🇨🇦 CANADA46♥♠A=-14
-12.0Round 2🇬🇷 GREECE233NT♣T-2-17
-14.2Round 12🇮🇱 ISRAEL233♥x♠A-4-14
-14.7Round 13🇹🇷 TURKIYE67♥♥3=-13