🇳🇱 KOLEN Jan · NETHERLANDS

13rank
+148.8Butler · 272 bds
+0.55per board
±4.7swing
+0.93vs par /bd · #7/135
+0.61adjusted /bd
Butler per round: 41.4 17.1 -17.5 21.4 -4.4 -16.1 21.1 -2.9 5.2 32.7 19.9 -0.6 7.3 -4 7.5 4.8 15.9by round

vs par split: bidding +0.65 · play +0.27

Strength of schedule: opponents averaged +0.07/bd (a tough draw) → opponent-adjusted +0.61/bd

Card play — on target: opening leads 82.4% #50 of 135 · declarer play 81.2% #16 of 135 · defence 87.2% #48 of 135

Card play by contract type — on target
vs NTvs a suit
Opening leads66.7% (15)86.8% (53)
Declarer play71.4% (21)85.4% (48)
Defence77.4% (31)89.7% (117)

Opening leads by suit led: ♠ 80.0% (15) · ♥ 93.3% (15) · ♦ 83.3% (18) · ♣ 75.0% (20)

vs par by strain: NT +0.12 (73) · a suit +1.22 (199)

vs par by level: part-score +1.50 (103) · game +0.20 (147) · slam +3.14 (22)

By role: declaring +0.78/bd (-1.57 vs par · 124) · defending +0.35/bd (+3.02 vs par · 148)

By vulnerability: vulnerable +0.31/bd (+0.21 vs par · 136) · not vulnerable +0.79/bd (+1.65 vs par · 136)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2A.MulderA.Leigh – P.LingOpen16+41.4+2.59+2.44
Round 3A.MulderS.Basak – H.JalanClosed16+17.1+1.07+1.62
Round 5A.MulderV.Koneru – P.RajadhyakshaOpen16-17.5-1.09+0.50
Round 6A.MulderN.Hanna – J.RaynerClosed16+21.4+1.34+4.19
Round 8A.MulderC.Barrientos – R.NinoOpen16-4.4-0.28-0.25
Round 9A.MulderS.Burgess – G.LorentzClosed16-16.1-1.01+0.12
Round 11A.MulderC.Lin – J.ChungOpen16+21.1+1.32+0.69
Round 12A.MulderM.Sun – M.ShenOpen16-2.9-0.18+0.56
Round 14A.MulderS.Johnsen – A.StokkelandOpen16+5.2+0.33+1.50
Round 15A.MulderG.Polet – A.KaplanClosed16+32.7+2.04+2.88
Round 16A.MulderM.Dunitz – R.GrabelOpen16+19.9+1.24+0.19
Round 17A.MulderS.Schou – J.HansenOpen16-0.6-0.04-1.25
Round 19A.MulderW.Starkowski – M.KwiecienOpen16+7.3+0.46+0.94
Round 20A.MulderJ.Sylvan – M.GustawssonOpen16-4.0-0.25+1.06
Round 21A.MulderB.Pincus – D.MinwallaOpen16+7.5+0.47-1.69
Round 22A.MulderL.Palazzo – W.FornasariClosed16+4.8+0.30+1.88
Round 23A.MulderS.Gardezi – S.AkhtarClosed16+15.9+0.99+0.38

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
+16.6Round 6🇨🇦 CANADA217♠x♣K-4+21
+13.5Round 15🇧🇪 BELGIUM124♠♣K=+13
+12.9Round 19🇵🇱 POLAND54♠x♥J-3+14
+12.1Round 17🇩🇰 DENMARK26♣♥A-1+17
+12.0Round 23🇵🇰 PAKISTAN314♥♣2-1+6
+11.7Round 21🇿🇦 SOUTH AFRICA225♦x♠9-2+15
+11.2Round 22🇦🇷 ARGENTINA116♥♣8-2+17
+10.7Round 2🇭🇰 HONG KONG CHINA233NT♣7=+12
+10.3Round 3🇮🇳 INDIA57♣♥2=-2
+10.2Round 12🇨🇳 CHINA324♠x♥J=+4
+10.0Round 11🇹🇼 CHINESE TAIPEI56♥x♠5-2+15
+10.0Round 22🇦🇷 ARGENTINA66♥♦7=+0
+9.6Round 14🇳🇴 NORWAY306♥♦K=+10
+9.5Round 11🇹🇼 CHINESE TAIPEI104♠♣3=+10
+9.2Round 2🇭🇰 HONG KONG CHINA316NT♣J-1+11
+9.1Round 16🇺🇸 USA2324♠x♦K+1+10
+9.0Round 20🇸🇪 SWEDEN106♣♥K-1+12
+8.8Round 14🇳🇴 NORWAY245♣x♠7-3+13
+8.7Round 6🇨🇦 CANADA264♦♠J+1+10
+8.5Round 2🇭🇰 HONG KONG CHINA292♣♦J+1+11
+8.4Round 8🇨🇴 COLOMBIA304♠♥A=+8
+7.7Round 12🇨🇳 CHINA223NT♣6=+7
+7.1Round 16🇺🇸 USA2234♠♥10-3-7
+7.1Round 19🇵🇱 POLAND45♦♠K-2+2
+7.1Round 23🇵🇰 PAKISTAN264♥♦K-1+7
+6.9Round 17🇩🇰 DENMARK42♠♦A+2+10
+6.6Round 3🇮🇳 INDIA75♠♦A-1+13
+6.5Round 8🇨🇴 COLOMBIA266♦♠5+1+13
+6.5Round 22🇦🇷 ARGENTINA94♥♠9=+17
+6.4Round 20🇸🇪 SWEDEN123♦♣Q=+11
+6.2Round 2🇭🇰 HONG KONG CHINA303NT♦6+2+8
+6.2Round 15🇧🇪 BELGIUM73NT♦5=+0
+6.0Round 12🇨🇳 CHINA283NT♦7=+10
+5.8Round 21🇿🇦 SOUTH AFRICA204♠♦4+1+1
+5.5Round 16🇺🇸 USA2293NT♦9=+10
+5.3Round 6🇨🇦 CANADA273♥♠K+2+6
+5.3Round 11🇹🇼 CHINESE TAIPEI163NT♥Q+1+0
+5.2Round 21🇿🇦 SOUTH AFRICA312♠♣6+3+6
+5.0Round 14🇳🇴 NORWAY193♦♥2+2+7
+5.0Round 15🇧🇪 BELGIUM113NT♥6+1+7
+4.9Round 5🇺🇸 USA184♠♥5-1+5
+4.8Round 3🇮🇳 INDIA163NT♥K+1+4
+4.8Round 16🇺🇸 USA2263NT♥4=+10
+4.7Round 5🇺🇸 USA122♠♥6-2+0
+4.6Round 21🇿🇦 SOUTH AFRICA303♥♦K-3+1
+4.5Round 3🇮🇳 INDIA132♠♦K+3+7
+4.5Round 19🇵🇱 POLAND65♦x♠J-4+4
+4.4Round 9🇦🇺 AUSTRALIA73♥♠K-3+5
+4.4Round 21🇿🇦 SOUTH AFRICA236NT♥8=-13
+4.3Round 12🇨🇳 CHINA182♠♠3+1+1
+4.3Round 14🇳🇴 NORWAY233NT♠J=-1
+4.2Round 8🇨🇴 COLOMBIA215♥♠K-2+2
+4.0Round 9🇦🇺 AUSTRALIA24♠♣3=+0
+3.8Round 6🇨🇦 CANADA291NT♣2-2+2
+3.7Round 5🇺🇸 USA1114♠♥6-3+7
+3.7Round 11🇹🇼 CHINESE TAIPEI72NT♦6=+6
+3.7Round 19🇵🇱 POLAND122♥♦J+1+12
+3.6Round 6🇨🇦 CANADA303NT♠7+2+1
+3.6Round 8🇨🇴 COLOMBIA193NT♠Q-1+4
+3.6Round 11🇹🇼 CHINESE TAIPEI21♥♣K+1+1
+3.6Round 15🇧🇪 BELGIUM44♥♦A-1+12
+3.6Round 15🇧🇪 BELGIUM84♠♣9-2+6
+3.6Round 17🇩🇰 DENMARK12♠♥9-1+4
+3.5Round 23🇵🇰 PAKISTAN286♣♦Q-1+12
+3.4Round 3🇮🇳 INDIA113NT♦J+1+1
+3.4Round 23🇵🇰 PAKISTAN183♥♦4+2-6
+3.3Round 11🇹🇼 CHINESE TAIPEI147♦♣Q=-2
+3.3Round 19🇵🇱 POLAND13♠♣7+2+6
+3.2Round 14🇳🇴 NORWAY172♥♦5+2+7
+3.2Round 16🇺🇸 USA2273♣♥3-1+4
+3.1Round 9🇦🇺 AUSTRALIA114NT♠K+1+0
+3.0Round 20🇸🇪 SWEDEN14♥♦Q+1+8
+3.0Round 20🇸🇪 SWEDEN61NT♠5=+5
+3.0Round 20🇸🇪 SWEDEN163♣♠J+1+10
+2.9Round 23🇵🇰 PAKISTAN201NT♠3-2+2
+2.8Round 15🇧🇪 BELGIUM12♥♠3-1+4
+2.8Round 23🇵🇰 PAKISTAN215♠♣K-2+2
+2.7Round 2🇭🇰 HONG KONG CHINA174♠x♥2-2+4
+2.7Round 22🇦🇷 ARGENTINA12♠♣J=+5
+2.5Round 6🇨🇦 CANADA233NT♦K-1+12
+2.5Round 12🇨🇳 CHINA304♣x♠8-1+5
+2.3Round 9🇦🇺 AUSTRALIA14♠x♥A-1+5
+2.3Round 20🇸🇪 SWEDEN112♥♥4=+6
+2.3Round 21🇿🇦 SOUTH AFRICA274♠♥A=+0
+2.2Round 9🇦🇺 AUSTRALIA163NT♠4+1+0
+2.2Round 11🇹🇼 CHINESE TAIPEI123♦♠2-1+5
+2.2Round 19🇵🇱 POLAND144♥♦J=+3
+2.1Round 22🇦🇷 ARGENTINA32NT♠6-2+11
+2.0Round 2🇭🇰 HONG KONG CHINA245♦♣6+1+0
+2.0Round 20🇸🇪 SWEDEN23NT♣5+1-1
+1.9Round 3🇮🇳 INDIA104♠♣4-1+6
+1.9Round 14🇳🇴 NORWAY202♠♥6-2+3
+1.9Round 15🇧🇪 BELGIUM151NT♥3+3+2
+1.9Round 20🇸🇪 SWEDEN53NT♣J-1+10
+1.8Round 6🇨🇦 CANADA284♥♠7=+0
+1.7Round 3🇮🇳 INDIA61♠♠A-1+1
+1.7Round 8🇨🇴 COLOMBIA233NT♦3=-1
+1.7Round 15🇧🇪 BELGIUM94♦♥K-1+9
+1.7Round 16🇺🇸 USA2181NT♥6=-1
+1.7Round 16🇺🇸 USA2283♥♦5=+0
+1.6Round 23🇵🇰 PAKISTAN171NT♦3=+2
+1.5Round 11🇹🇼 CHINESE TAIPEI33NT♠4=-1
+1.5Round 17🇩🇰 DENMARK83♣♥A-3+0
+1.5Round 22🇦🇷 ARGENTINA143NT♥Q+2+11
+1.4Round 12🇨🇳 CHINA312♠♦10+2+6
+1.3Round 2🇭🇰 HONG KONG CHINA283♠♥A+1+7
+1.3Round 3🇮🇳 INDIA84♥♦10=+11
+1.3Round 15🇧🇪 BELGIUM103♥♣A=-10
+1.3Round 17🇩🇰 DENMARK163NT♥10=-5
+1.3Round 22🇦🇷 ARGENTINA152♠♦4+4+13
+1.2Round 9🇦🇺 AUSTRALIA42♦♦3+2+0
+1.2Round 12🇨🇳 CHINA194♠♦Q=+0
+1.2Round 12🇨🇳 CHINA295♠x♣A-2+0
+1.2Round 14🇳🇴 NORWAY292♠♥Q=+0
+1.2Round 17🇩🇰 DENMARK72♠♦6-1+1
+1.1Round 9🇦🇺 AUSTRALIA91NT♥6+2+1
+1.0Round 15🇧🇪 BELGIUM135♦♥10+1-10
+1.0Round 19🇵🇱 POLAND133♣♠K=+0
+0.9Round 5🇺🇸 USA154♠♣10+1+0
+0.9Round 6🇨🇦 CANADA193NT♣J+2+10
+0.9Round 6🇨🇦 CANADA312♦♠A+1+10
+0.9Round 15🇧🇪 BELGIUM24♠♣A=+1
+0.7Round 2🇭🇰 HONG KONG CHINA214♠♣K+1-13
+0.7Round 2🇭🇰 HONG KONG CHINA262♦♥K=-1
+0.7Round 8🇨🇴 COLOMBIA181♠♥2+1+0
+0.7Round 16🇺🇸 USA2212♠♥Q+1+0
+0.7Round 23🇵🇰 PAKISTAN193NT♠4+2+0
+0.6Round 2🇭🇰 HONG KONG CHINA193NT♠Q+1+0
+0.6Round 8🇨🇴 COLOMBIA272♠♥9-2-1
+0.6Round 21🇿🇦 SOUTH AFRICA242♠♣J-1+2
+0.6Round 23🇵🇰 PAKISTAN271NT♥3-3-6
+0.5Round 9🇦🇺 AUSTRALIA56♥♠9+1+11
+0.5Round 16🇺🇸 USA2204♥♦Q+2+1
+0.5Round 19🇵🇱 POLAND164♣♣2-8+3
+0.4Round 2🇭🇰 HONG KONG CHINA274♣♦9-2-1
+0.4Round 12🇨🇳 CHINA253♦♥Q+1+0
+0.3Round 2🇭🇰 HONG KONG CHINA324♠♣Q+1+0
+0.3Round 14🇳🇴 NORWAY213♦♦3=+0
+0.3Round 19🇵🇱 POLAND104♠♦K=+1
+0.2Round 3🇮🇳 INDIA14♠♣5=+1
+0.2Round 5🇺🇸 USA164♠♥J+1-11
+0.2Round 15🇧🇪 BELGIUM33NT♥10-2+8
+0.2Round 16🇺🇸 USA2242♠♥K+1+0
+0.1Round 8🇨🇴 COLOMBIA175♦♥5+1+9
+0.1Round 11🇹🇼 CHINESE TAIPEI134♠♦9+2-12
+0.0Round 5🇺🇸 USA1133♣♦A+2+0
-0.0Round 16🇺🇸 USA2222♠♥3+2+6
-0.0Round 17🇩🇰 DENMARK135♣♥A-1-6
-0.1Round 2🇭🇰 HONG KONG CHINA182♦♦7=+1
-0.1Round 2🇭🇰 HONG KONG CHINA224♥♥4=+0
-0.1Round 3🇮🇳 INDIA124♥♦J=+0
-0.2Round 5🇺🇸 USA174♥♦7+1+0
-0.2Round 12🇨🇳 CHINA214♠♦J=+1
-0.2Round 23🇵🇰 PAKISTAN232♥♣5+1+0
-0.3Round 6🇨🇦 CANADA323NT♥3+2+11
-0.3Round 11🇹🇼 CHINESE TAIPEI13NT♣3+2+11
-0.3Round 19🇵🇱 POLAND84♠♦10=+1
-0.3Round 21🇿🇦 SOUTH AFRICA264♠♦A+1+0
-0.4Round 15🇧🇪 BELGIUM163♥♣10-1+3
-0.4Round 16🇺🇸 USA2313NT♠2+2+0
-0.4Round 23🇵🇰 PAKISTAN243♠♥A-1-2
-0.5Round 6🇨🇦 CANADA202♥♣5-2+9
-0.5Round 8🇨🇴 COLOMBIA221NT♦2+1+0
-0.5Round 20🇸🇪 SWEDEN44♠♦8+1-13
-0.6Round 2🇭🇰 HONG KONG CHINA201♥♦J+2+0
-0.6Round 5🇺🇸 USA114♥♦A+2+11
-0.7Round 22🇦🇷 ARGENTINA84♥♣K-1-5
-0.9Round 22🇦🇷 ARGENTINA133♦♠A+1+0
-1.0Round 19🇵🇱 POLAND153♦♥A-1-1
-1.1Round 2🇭🇰 HONG KONG CHINA254♥♦9+1+0
-1.1Round 9🇦🇺 AUSTRALIA143♥♠10-1-5
-1.2Round 22🇦🇷 ARGENTINA52♥♥Q+2-10
-1.3Round 17🇩🇰 DENMARK151NT♣J-5-3
-1.3Round 21🇿🇦 SOUTH AFRICA174♥♣K+1-11
-1.3Round 22🇦🇷 ARGENTINA44♥♣K+1+0
-1.4Round 6🇨🇦 CANADA174♠♣J+1+0
-1.4Round 11🇹🇼 CHINESE TAIPEI113♦♥Q=+0
-1.4Round 17🇩🇰 DENMARK144♥♦A-1-2
-1.6Round 9🇦🇺 AUSTRALIA61NT♣7+1+0
-1.6Round 17🇩🇰 DENMARK66♥♠4+1-13
-1.6Round 17🇩🇰 DENMARK124♥♦5=+1
-1.6Round 20🇸🇪 SWEDEN73♦♣10+3-10
-1.7Round 3🇮🇳 INDIA141NT♠Q+1+1
-1.7Round 11🇹🇼 CHINESE TAIPEI63♥♦K+1-1
-1.7Round 16🇺🇸 USA2173NT♠6+4-9
-1.7Round 17🇩🇰 DENMARK91NT♦K-1-2
-1.7Round 21🇿🇦 SOUTH AFRICA191NT♣3+1-7
-1.7Round 23🇵🇰 PAKISTAN303NT♥3+3-3
-1.8Round 5🇺🇸 USA142♣♦A-1-5
-1.8Round 16🇺🇸 USA2193♦♥4=-1
-1.9Round 3🇮🇳 INDIA43♠♥J=+0
-1.9Round 14🇳🇴 NORWAY225♣x♥9-1+0
-1.9Round 21🇿🇦 SOUTH AFRICA183NT♣5=+0
-2.0Round 8🇨🇴 COLOMBIA244♠♣Q=+0
-2.0Round 11🇹🇼 CHINESE TAIPEI85♠♦6=-4
-2.0Round 21🇿🇦 SOUTH AFRICA323NT♠6=-3
-2.0Round 23🇵🇰 PAKISTAN323♠♥6=+7
-2.1Round 11🇹🇼 CHINESE TAIPEI44♦♠7+1-1
-2.1Round 23🇵🇰 PAKISTAN222♠♠2+3+6
-2.2Round 5🇺🇸 USA1123NT♣4+1-1
-2.2Round 8🇨🇴 COLOMBIA311NT♠4+2-2
-2.2Round 21🇿🇦 SOUTH AFRICA283NT♦5-1-12
-2.3Round 5🇺🇸 USA1144♣♠A+1+13
-2.3Round 12🇨🇳 CHINA174♠♥J+2-1
-2.4Round 5🇺🇸 USA193NT♥3+3-1
-2.5Round 3🇮🇳 INDIA93NT♣5=-13
-2.5Round 5🇺🇸 USA1104♥♦J=+0
-2.5Round 8🇨🇴 COLOMBIA206NT♣Q+1-1
-2.5Round 14🇳🇴 NORWAY273NT♠K-3-6
-2.6Round 6🇨🇦 CANADA253♦♠A=+0
-2.6Round 20🇸🇪 SWEDEN34♠♣K+1+0
-2.7Round 14🇳🇴 NORWAY184♥♣10-2-5
-2.7Round 14🇳🇴 NORWAY314♠♥A-1-5
-2.8Round 3🇮🇳 INDIA32♠♦7+1-1
-2.8Round 12🇨🇳 CHINA262♠♥A=+0
-2.8Round 14🇳🇴 NORWAY324♠♥3+1+0
-2.8Round 15🇧🇪 BELGIUM64♥♠Q=+1
-2.8Round 15🇧🇪 BELGIUM143♠♦9=+0
-2.8Round 20🇸🇪 SWEDEN94♠♦5=+0
-2.9Round 6🇨🇦 CANADA243NT♠A+2-1
-2.9Round 16🇺🇸 USA2252♥♦5-1-6
-3.0Round 14🇳🇴 NORWAY264♥♣Q-1+1
-3.0Round 15🇧🇪 BELGIUM54NT♥5+1+0
-3.1Round 17🇩🇰 DENMARK102♠♥9=+0
-3.1Round 19🇵🇱 POLAND26♣♣A=+0
-3.2Round 5🇺🇸 USA1155♣♦Q+1-13
-3.2Round 22🇦🇷 ARGENTINA71♣♣K-3-5
-3.3Round 3🇮🇳 INDIA152♥♣Q+1+0
-3.3Round 8🇨🇴 COLOMBIA253NT♥2-2-7
-3.6Round 9🇦🇺 AUSTRALIA154♥♣2=+0
-3.6Round 17🇩🇰 DENMARK113NT♥J+2+0
-3.7Round 22🇦🇷 ARGENTINA105♦x♥2=-4
-3.8Round 9🇦🇺 AUSTRALIA133NT♥K=+1
-3.8Round 21🇿🇦 SOUTH AFRICA214♥♣A=+0
-3.9Round 14🇳🇴 NORWAY282♥♣A+1+0
-4.0Round 8🇨🇴 COLOMBIA284♥♦A-1-5
-4.0Round 12🇨🇳 CHINA244♥♠7-1-5
-4.2Round 20🇸🇪 SWEDEN154♣♠5=-6
-4.3Round 9🇦🇺 AUSTRALIA122♣♦4-1+5
-4.5Round 12🇨🇳 CHINA271NT♠2+3-6
-4.7Round 22🇦🇷 ARGENTINA24♠x♥6-3+5
-4.8Round 11🇹🇼 CHINESE TAIPEI94♠x♣A=-5
-4.8Round 21🇿🇦 SOUTH AFRICA294♠♥Q-1-6
-4.8Round 23🇵🇰 PAKISTAN294♠♥9+2-13
-5.0Round 9🇦🇺 AUSTRALIA105♣x♠J-1-7
-5.0Round 19🇵🇱 POLAND74♠♥A+2-13
-5.3Round 3🇮🇳 INDIA24♠♥J=-3
-5.3Round 22🇦🇷 ARGENTINA123NT♥J-1-12
-5.8Round 11🇹🇼 CHINESE TAIPEI155♠♥9+1-11
-5.8Round 19🇵🇱 POLAND93♣♥3+1-11
-5.9Round 6🇨🇦 CANADA224♠♥5-1-13
-6.0Round 19🇵🇱 POLAND115♠x♣A-2-5
-6.2Round 5🇺🇸 USA1165♥♣K+1+3
-6.2Round 17🇩🇰 DENMARK34♠♠5-2-8
-6.5Round 20🇸🇪 SWEDEN145♣♥A=+0
-6.7Round 17🇩🇰 DENMARK56NT♦Q-1-14
-7.0Round 19🇵🇱 POLAND33NT♠5+1-1
-7.2Round 20🇸🇪 SWEDEN83NT♣7-2-5
-7.5Round 9🇦🇺 AUSTRALIA84♠♣A-1-8
-7.5Round 23🇵🇰 PAKISTAN255♣x♦2=-8
-7.7Round 8🇨🇴 COLOMBIA323NT♠K-1-12
-7.8Round 16🇺🇸 USA2306♥♣K-1-14
-8.0Round 8🇨🇴 COLOMBIA293NT♦2+2-11
-8.0Round 9🇦🇺 AUSTRALIA32♥♣A+1-6
-9.1Round 6🇨🇦 CANADA186NT♦J-2-11
-9.1Round 21🇿🇦 SOUTH AFRICA254♥♦2=+0
-9.2Round 20🇸🇪 SWEDEN132NT♠Q+2-10
-9.5Round 22🇦🇷 ARGENTINA164♥♣3=-13
-9.6Round 14🇳🇴 NORWAY256♦♠6=+0
-10.0Round 12🇨🇳 CHINA234♠♥8=+0
-10.5Round 5🇺🇸 USA136♠♥5=+0
-14.0Round 12🇨🇳 CHINA205♣xx♦A+1-13