🇺🇸 ROSENBERG Michael · USA2

44rank
+46.6Butler · 238 bds
+0.20per board
±4.6swing
+0.34vs par /bd · #44/139
+0.21adjusted /bd
Butler per round: -3.3 -4.5 -32.8 11 2.7 -8.3 19.3 5.5 1.4 4.3 16.2 -23.5 -8.1 36.2 -13.6 31.4 12.7by round

vs par split: bidding +0.18 · play +0.16

Strength of schedule: opponents averaged +0.01/bd (an average draw) → opponent-adjusted +0.21/bd

Card play — on target: opening leads 79.3% #81 of 139 · declarer play 75.0% #80 of 139 · defence 91.7% #22 of 139

Bidding activity — not a pass: 41.4% #105 of 139 (280/677)

Card play by contract type — on target
vs NTvs a suit
Opening leads66.7% (18)85.0% (40)
Declarer play66.7% (18)78.9% (38)
Defence83.8% (37)95.2% (84)

Opening leads by suit led: ♠ 81.8% (11) · ♥ 78.6% (14) · ♦ 68.8% (16) · ♣ 88.2% (17)

vs par by strain: NT +0.49 (72) · a suit +0.28 (166)

vs par by level: part-score -0.54 (86) · game +0.85 (135) · slam +0.71 (17)

By role: declaring +0.24/bd (-1.88 vs par · 117) · defending +0.15/bd (+2.49 vs par · 121)

By vulnerability: vulnerable -0.02/bd (-0.24 vs par · 119) · not vulnerable +0.41/bd (+0.92 vs par · 119)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2Z.GrossackG.Donati – G.PercarioClosed14-3.3-0.24+2.36
Round 3Z.GrossackM.Mayer – B.MaceClosed14-4.5-0.32+0.57
Round 4Z.GrossackD.Bilde – M.SchaltzOpen14-32.8-2.34-2.43
Round 6Z.GrossackJ.Hurd – K.BathurstClosed14+11.0+0.79+0.71
Round 7Z.GrossackM.Cloppet – L.RizzoOpen14+2.7+0.19+2.29
Round 8Z.GrossackJ.Upmark – F.NystromOpen14-8.3-0.59-2.43
Round 10Z.GrossackM.Figueiredo – M.TomaOpen14+19.3+1.38+0.79
Round 11Z.GrossackH.So – L.KuoClosed14+5.5+0.39-1.79
Round 12Z.GrossackB.Drijver – S.BrinkOpen14+1.4+0.10+0.14
Round 14Z.GrossackH.Fick – N.EberClosed14+4.3+0.31+0.86
Round 15Z.GrossackO.Meddeb – A.MeddebOpen14+16.2+1.16+1.93
Round 16Z.GrossackL.Milne – J.CouttsClosed14-23.5-1.68-2.93
Round 17Z.GrossackA.Zamir – O.ToledanoClosed14-8.1-0.58-1.29
Round 19Z.GrossackP.Mathieu – L.SoudanOpen14+36.2+2.59+1.43
Round 20Z.GrossackC.Dehaye – B.DehayeClosed14-13.6-0.97+0.79
Round 22Z.GrossackS.Roy – K.NandiOpen14+31.4+2.24+2.57
Round 23Z.GrossackY.Zhang – J.LiOpen14+12.7+0.91+2.21

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
+15.8Round 22🇮🇳 INDIA283NTx♦Q-5+17
+12.3Round 22🇮🇳 INDIA195♠x♦Q-4+12
+11.3Round 15🇹🇳 TUNISIA113♦x♣Q=+13
+11.0Round 22🇮🇳 INDIA174♠x♥A-4+9
+10.6Round 6🇺🇸 USA1233NT♣7=+3
+10.2Round 19🇬🇵 GUADELOUPE126♣♠7=+7
+9.7Round 2🇮🇹 ITALY226NT♥6-1+14
+9.7Round 22🇮🇳 INDIA264♥x♦K=+7
+9.6Round 19🇬🇵 GUADELOUPE106♠x♣K-1+20
+9.2Round 10🇧🇷 BRAZIL256♥x♠K-2+13
+8.8Round 23🇨🇳 CHINA24♠x♥T-3+9
+8.7Round 10🇧🇷 BRAZIL156♥♦K=+5
+8.2Round 19🇬🇵 GUADELOUPE64♥x♥A-1+5
+8.0Round 8🇸🇪 SWEDEN155♦x♦2-1+5
+7.7Round 11🇹🇼 CHINESE TAIPEI145♦♠2-1+8
+7.5Round 14🇿🇦 SOUTH AFRICA193♠♦4-1+12
+7.0Round 3🇳🇿 NEW ZEALAND73NT♠2-1+9
+6.9Round 2🇮🇹 ITALY246♦♠K=+3
+6.9Round 6🇺🇸 USA1204♠♦A-1+12
+6.8Round 19🇬🇵 GUADELOUPE43NT♣Q=-13
+6.7Round 3🇳🇿 NEW ZEALAND33NT♦8-2+11
+6.7Round 15🇹🇳 TUNISIA25♥♥J-2+12
+6.5Round 7🇦🇷 ARGENTINA65♦♦8-2+8
+6.4Round 11🇹🇼 CHINESE TAIPEI123NT♥3+1+0
+6.2Round 23🇨🇳 CHINA54♠♣A=+8
+6.0Round 16🇦🇺 AUSTRALIA242♥x♠2-2+5
+5.0Round 7🇦🇷 ARGENTINA114♠x♥K-2+9
+5.0Round 16🇦🇺 AUSTRALIA254♥♠5-1+12
+4.8Round 8🇸🇪 SWEDEN183♥♠A-2+2
+4.8Round 23🇨🇳 CHINA94NT♥4+1+0
+4.7Round 8🇸🇪 SWEDEN174♠♠3-1+4
+4.6Round 11🇹🇼 CHINESE TAIPEI116NT♠9=+2
+4.5Round 17🇮🇱 ISRAEL84♠♦A-3+6
+4.4Round 6🇺🇸 USA1154♠♥A=+0
+4.4Round 17🇮🇱 ISRAEL123♠♦A-2+0
+4.3Round 7🇦🇷 ARGENTINA11NTx♦Q-2+5
+4.3Round 19🇬🇵 GUADELOUPE33♥♣5-1+11
+4.1Round 7🇦🇷 ARGENTINA144♥♦2=+8
+4.0Round 7🇦🇷 ARGENTINA122♥♣K-2+0
+4.0Round 20🇧🇪 BELGIUM283NT♠A-1+5
+3.9Round 10🇧🇷 BRAZIL223NT♦3=-2
+3.9Round 17🇮🇱 ISRAEL43♦♣7-1+5
+3.8Round 2🇮🇹 ITALY203♦♠6+1+11
+3.8Round 12🇨🇭 SWITZERLAND247♥♣Q=+0
+3.7Round 10🇧🇷 BRAZIL233NT♣7=+0
+3.6Round 10🇧🇷 BRAZIL173♦♥3-2+6
+3.6Round 10🇧🇷 BRAZIL213NT♦8+3+2
+3.3Round 19🇬🇵 GUADELOUPE14♥♥J=+0
+3.1Round 3🇳🇿 NEW ZEALAND14♥♣Q=+0
+3.1Round 15🇹🇳 TUNISIA33♦♥A+1+0
+3.0Round 16🇦🇺 AUSTRALIA274NT♣J+2+11
+3.0Round 20🇧🇪 BELGIUM213NT♥5+2+13
+3.0Round 22🇮🇳 INDIA235♣♦Q-2+2
+2.9Round 12🇨🇭 SWITZERLAND213♥♠6-1+6
+2.9Round 12🇨🇭 SWITZERLAND262♠♣Q+1+1
+2.9Round 19🇬🇵 GUADELOUPE94♠♥A-1+12
+2.8Round 6🇺🇸 USA1222♥♥6-1-2
+2.8Round 16🇦🇺 AUSTRALIA225♦x♣K=+4
+2.8Round 17🇮🇱 ISRAEL113♥♣4+1+1
+2.7Round 20🇧🇪 BELGIUM244♥♣9+1+1
+2.6Round 6🇺🇸 USA1164♥♣A+2+11
+2.6Round 14🇿🇦 SOUTH AFRICA184♥♦K=+0
+2.4Round 11🇹🇼 CHINESE TAIPEI84♥♥2-2-1
+2.3Round 12🇨🇭 SWITZERLAND194♠♥A=+3
+2.2Round 7🇦🇷 ARGENTINA53NT♠T+1+1
+2.2Round 16🇦🇺 AUSTRALIA213♠♦A-1+5
+2.1Round 22🇮🇳 INDIA272♠♦Q+2+7
+2.0Round 6🇺🇸 USA1213NT♣3+1+1
+2.0Round 10🇧🇷 BRAZIL263NT♥3+2+1
+2.0Round 11🇹🇼 CHINESE TAIPEI72♠♣7-2-2
+1.9Round 7🇦🇷 ARGENTINA82♠♣T+1+1
+1.8Round 15🇹🇳 TUNISIA133NT♣9-2+8
+1.7Round 11🇹🇼 CHINESE TAIPEI53NT♠Q-1+5
+1.6Round 14🇿🇦 SOUTH AFRICA264♠♦2=+0
+1.5Round 15🇹🇳 TUNISIA94♥♦9-1-6
+1.4Round 11🇹🇼 CHINESE TAIPEI92♠♦Q+1+1
+1.4Round 14🇿🇦 SOUTH AFRICA273♠♦4=+0
+1.4Round 17🇮🇱 ISRAEL33NT♠6=+0
+1.4Round 19🇬🇵 GUADELOUPE113♥♦4+1+1
+1.4Round 20🇧🇪 BELGIUM233NT♠3+2+0
+1.3Round 8🇸🇪 SWEDEN162NT♥3+1-10
+1.3Round 23🇨🇳 CHINA62♥♣4-1+5
+1.3Round 23🇨🇳 CHINA143♦♠4+2-6
+1.2Round 3🇳🇿 NEW ZEALAND43NT♦2+4+2
+1.2Round 3🇳🇿 NEW ZEALAND93♥♣3-1-2
+1.2Round 3🇳🇿 NEW ZEALAND141♥♣4-1+9
+1.2Round 4🇩🇰 DENMARK154♥♦Q=+11
+1.2Round 10🇧🇷 BRAZIL164♠♥J+2+11
+1.2Round 20🇧🇪 BELGIUM153♥♠A=+1
+1.1Round 14🇿🇦 SOUTH AFRICA214♠♣T+1+1
+1.1Round 14🇿🇦 SOUTH AFRICA243♠♣K-1+2
+1.0Round 12🇨🇭 SWITZERLAND153NT♥3-1+2
+1.0Round 12🇨🇭 SWITZERLAND185♦♠A=+0
+1.0Round 17🇮🇱 ISRAEL53♠♣A-1+5
+0.9Round 4🇩🇰 DENMARK274♣♥8-2-5
+0.9Round 12🇨🇭 SWITZERLAND164♠♥K=-1
+0.8Round 23🇨🇳 CHINA44♥♣Q=+1
+0.7Round 8🇸🇪 SWEDEN234♠♣3+1+0
+0.7Round 14🇿🇦 SOUTH AFRICA153NT♠T+1+0
+0.7Round 15🇹🇳 TUNISIA73♥♦2+1+10
+0.7Round 16🇦🇺 AUSTRALIA234♥♣J+2-13
+0.6Round 2🇮🇹 ITALY153NT♥2+3+12
+0.6Round 15🇹🇳 TUNISIA14♥♦A=-1
+0.6Round 15🇹🇳 TUNISIA144♥♣A=+1
+0.6Round 19🇬🇵 GUADELOUPE73♦♣A+1-10
+0.6Round 22🇮🇳 INDIA242♦x♥Q-1+5
+0.5Round 17🇮🇱 ISRAEL71NT♠2-2+2
+0.5Round 22🇮🇳 INDIA214♠♥Q+2+1
+0.5Round 23🇨🇳 CHINA13NT♦J+1+10
+0.5Round 23🇨🇳 CHINA71NT♥3+1+1
+0.4Round 3🇳🇿 NEW ZEALAND53NT♣3+1+1
+0.4Round 7🇦🇷 ARGENTINA44♠♣3+2+13
+0.4Round 8🇸🇪 SWEDEN252NT♠7=-1
+0.4Round 8🇸🇪 SWEDEN282♠♣A=+0
+0.4Round 12🇨🇭 SWITZERLAND204♠♥A+1+13
+0.4Round 20🇧🇪 BELGIUM173NT♦4+2+11
+0.3Round 3🇳🇿 NEW ZEALAND104♥♦K+2+13
+0.3Round 6🇺🇸 USA1182♦♣K+1+0
+0.2Round 7🇦🇷 ARGENTINA33NT♦5+2+0
+0.2Round 15🇹🇳 TUNISIA81NT♣5-1+3
+0.2Round 16🇦🇺 AUSTRALIA284♠x♥A-2-5
+0.2Round 23🇨🇳 CHINA84♥♦Q+1+0
+0.1Round 7🇦🇷 ARGENTINA71NT♠5+1+0
+0.1Round 14🇿🇦 SOUTH AFRICA163♦♥2=+1
+0.1Round 14🇿🇦 SOUTH AFRICA222♠♦A=+1
+0.1Round 20🇧🇪 BELGIUM224♥♦T+1+0
+0.1Round 23🇨🇳 CHINA131NT♣4=+1
+0.0Round 4🇩🇰 DENMARK173NT♠2+1+1
+0.0Round 11🇹🇼 CHINESE TAIPEI34♠♣T-1-10
-0.0Round 12🇨🇭 SWITZERLAND174♠♥Q+1+0
-0.0Round 15🇹🇳 TUNISIA126♠♦A=+0
-0.0Round 19🇬🇵 GUADELOUPE134♠♥3+1+0
-0.0Round 20🇧🇪 BELGIUM264♠♥2+1+0
-0.1Round 2🇮🇹 ITALY193NT♦6+3+11
-0.2Round 14🇿🇦 SOUTH AFRICA233NT♣3+2+0
-0.2Round 15🇹🇳 TUNISIA104♠♦5+1+0
-0.3Round 2🇮🇹 ITALY274♠♦4+1+0
-0.3Round 3🇳🇿 NEW ZEALAND65♣♦T=-13
-0.3Round 8🇸🇪 SWEDEN223NT♦Q+1+0
-0.3Round 10🇧🇷 BRAZIL204♠♥T=+0
-0.3Round 12🇨🇭 SWITZERLAND224♠♦4+1+0
-0.3Round 12🇨🇭 SWITZERLAND253NT♥7+2+0
-0.3Round 23🇨🇳 CHINA33NT♠5+1+0
-0.3Round 23🇨🇳 CHINA103NT♦5-2-7
-0.4Round 12🇨🇭 SWITZERLAND282♥♦K+2-7
-0.4Round 22🇮🇳 INDIA154♥♣6=-1
-0.5Round 2🇮🇹 ITALY231NT♣2+2-1
-0.5Round 4🇩🇰 DENMARK234♠♦2+1+13
-0.5Round 10🇧🇷 BRAZIL275♣♥4-3-6
-0.7Round 8🇸🇪 SWEDEN243♥♦A-1-4
-0.7Round 10🇧🇷 BRAZIL282♠♥7+1+0
-0.7Round 11🇹🇼 CHINESE TAIPEI64♥♣7-1-5
-0.8Round 2🇮🇹 ITALY263NT♥4=+1
-0.8Round 4🇩🇰 DENMARK243♥♣K=+0
-0.8Round 8🇸🇪 SWEDEN202♠♦2=+5
-0.8Round 17🇮🇱 ISRAEL103♦♠T=+0
-0.9Round 4🇩🇰 DENMARK223♦♠A-1-5
-1.0Round 2🇮🇹 ITALY176NT♥5-1-14
-1.0Round 4🇩🇰 DENMARK163NT♥6+1-1
-1.0Round 8🇸🇪 SWEDEN214♠♦3+2-1
-1.0Round 16🇦🇺 AUSTRALIA263NT♠7=-10
-1.0Round 17🇮🇱 ISRAEL62♠♠6-2-5
-1.0Round 19🇬🇵 GUADELOUPE23NT♠9+2-1
-1.0Round 22🇮🇳 INDIA254♥♣J=+1
-1.1Round 6🇺🇸 USA1192♠♦9-3-5
-1.1Round 11🇹🇼 CHINESE TAIPEI134♠♥3-1-6
-1.1Round 14🇿🇦 SOUTH AFRICA253♥♦A=+0
-1.2Round 4🇩🇰 DENMARK203♠♥8-1+0
-1.2Round 4🇩🇰 DENMARK212♥♦A=-1
-1.2Round 15🇹🇳 TUNISIA54♠x♥Q-3+4
-1.2Round 17🇮🇱 ISRAEL14♥♣3=+0
-1.4Round 4🇩🇰 DENMARK194♠♣3-1-6
-1.4Round 6🇺🇸 USA1243NT♥A=+0
-1.4Round 20🇧🇪 BELGIUM161NT♦J=+1
-1.6Round 2🇮🇹 ITALY281NT♥6-1-4
-1.6Round 7🇦🇷 ARGENTINA133♠♦3+1-8
-1.7Round 10🇧🇷 BRAZIL194♠♥3=-11
-2.0Round 3🇳🇿 NEW ZEALAND132NT♦8+1-1
-2.0Round 19🇬🇵 GUADELOUPE53♦♣A=+0
-2.1Round 12🇨🇭 SWITZERLAND233♠♣K-1-1
-2.2Round 4🇩🇰 DENMARK284♥x♥7-2-4
-2.2Round 16🇦🇺 AUSTRALIA162NT♦K-1-5
-2.3Round 6🇺🇸 USA1262♠♦6=+0
-2.3Round 14🇿🇦 SOUTH AFRICA283♠♦7=+0
-2.4Round 22🇮🇳 INDIA203♣♦J=-6
-2.7Round 2🇮🇹 ITALY163♦♠A=+0
-2.8Round 2🇮🇹 ITALY254♠♣J-1-5
-2.9Round 6🇺🇸 USA1272♥♦K=-1
-3.1Round 14🇿🇦 SOUTH AFRICA203NT♠6=-3
-3.2Round 6🇺🇸 USA1173♥♥7-1-4
-3.3Round 3🇳🇿 NEW ZEALAND83NT♥9=+0
-3.3Round 6🇺🇸 USA1283NT♠3+2-1
-3.3Round 20🇧🇪 BELGIUM203♥♠6+2-10
-3.3Round 20🇧🇪 BELGIUM274♠♦Q=+0
-3.5Round 11🇹🇼 CHINESE TAIPEI103♥♣5+3-15
-3.5Round 19🇬🇵 GUADELOUPE83♥♥K=-7
-3.5Round 23🇨🇳 CHINA124♠♣4=+14
-3.9Round 17🇮🇱 ISRAEL143NT♥Q-1-5
-4.1Round 16🇦🇺 AUSTRALIA174♥♣K=+0
-4.2Round 11🇹🇼 CHINESE TAIPEI13♥♣K=+6
-4.3Round 22🇮🇳 INDIA163NT♥Q-2-13
-4.4Round 6🇺🇸 USA1252♣xx♦6=-4
-4.4Round 15🇹🇳 TUNISIA66♥x♣3-2-12
-4.5Round 15🇹🇳 TUNISIA43♥♣A-1-5
-4.6Round 4🇩🇰 DENMARK265♥♣2=-10
-4.6Round 19🇬🇵 GUADELOUPE145♣x♠K-2-5
-4.7Round 11🇹🇼 CHINESE TAIPEI22♠♦T-1-3
-4.9Round 20🇧🇪 BELGIUM193NT♦3-1-6
-4.9Round 22🇮🇳 INDIA184♠♣5=+1
-5.0Round 17🇮🇱 ISRAEL93NT♣9+3-11
-5.1Round 3🇳🇿 NEW ZEALAND124♠♦K-1-10
-5.1Round 7🇦🇷 ARGENTINA26NT♦2=+11
-5.1Round 17🇮🇱 ISRAEL132NT♥5-1-5
-5.2Round 14🇿🇦 SOUTH AFRICA173NT♥J-3-2
-5.3Round 2🇮🇹 ITALY211NT♥J-6+5
-5.5Round 20🇧🇪 BELGIUM185♦♠9-2-7
-5.7Round 8🇸🇪 SWEDEN274♥♦8-1-10
-6.2Round 3🇳🇿 NEW ZEALAND113NT♠7=+0
-6.5Round 10🇧🇷 BRAZIL183NT♦J-3-1
-6.5Round 11🇹🇼 CHINESE TAIPEI43♠♥4-3-5
-6.6Round 8🇸🇪 SWEDEN193♠♣K+1-10
-6.7Round 16🇦🇺 AUSTRALIA183♠♥3-2-2
-6.9Round 10🇧🇷 BRAZIL243NT♦2=-7
-7.7Round 23🇨🇳 CHINA116♥♣A=-5
-8.0Round 20🇧🇪 BELGIUM256♦♣A+1+2
-8.2Round 7🇦🇷 ARGENTINA94♥♠J=-3
-8.7Round 3🇳🇿 NEW ZEALAND23NT♠4+1-11
-9.0Round 16🇦🇺 AUSTRALIA196♠♦J-1-17
-9.2Round 2🇮🇹 ITALY186♥♦4=+0
-9.6Round 4🇩🇰 DENMARK254♠♣K-2-12
-9.6Round 17🇮🇱 ISRAEL23♣♥8-2-11
-10.2Round 16🇦🇺 AUSTRALIA155♣x♣7=-9
-10.2Round 16🇦🇺 AUSTRALIA206♥♣A-1-17
-10.6Round 22🇮🇳 INDIA225♥x♦Q=-6
-10.7Round 12🇨🇭 SWITZERLAND274♥♠Q-1-14
-11.1Round 7🇦🇷 ARGENTINA103NT♣4-2-13
-11.5Round 4🇩🇰 DENMARK181♠x♣2=-15
-13.5Round 8🇸🇪 SWEDEN263♣x♥5-4-14