🇵🇱 ROMANSKI Jacek · POLAND

22rank
+117.7Butler · 256 bds
+0.46per board
±4.3swing
+0.11vs par /bd · #52/129
+0.49adjusted /bd
Butler per round: 4.6 -13.4 1.2 11.2 -4.5 0.3 -4.6 16.3 -19.7 -1.3 34.6 20.6 12.5 8.5 24.3 27.1by round

vs par split: bidding -0.37 · play +0.54

Strength of schedule: opponents averaged +0.03/bd (an average draw) → opponent-adjusted +0.49/bd

Card play — on target: opening leads 80.3% #59 of 129 · declarer play 75.5% #61 of 129 · defence 88.7% #36 of 129

Card play by contract type — on target
vs NTvs a suit
Opening leads91.7% (12)77.6% (49)
Declarer play80.0% (5)75.0% (44)
Defence85.7% (21)89.3% (103)

Opening leads by suit led: ♠ 76.9% (13) · ♥ 81.8% (22) · ♦ 78.6% (14) · ♣ 83.3% (12)

vs par by strain: NT +1.64 (42) · a suit -0.15 (194)

vs par by level: part-score -0.23 (93) · game +1.23 (122) · slam -4.29 (21)

By role: declaring +0.27/bd (-2.24 vs par · 127) · defending +0.64/bd (+2.42 vs par · 129)

By vulnerability: vulnerable +0.16/bd (+0.01 vs par · 128) · not vulnerable +0.76/bd (+0.20 vs par · 128)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2A.KowalskiK.Lung – P.ChunClosed16+4.6+0.29-1.12
Round 3A.KowalskiJ.Moers – S.FabbricatoreClosed16-13.4-0.84-3.50
Round 4A.KowalskiM.Sawiruddin – M.HartonoClosed16+1.2+0.07-0.56
Round 5A.KowalskiF.Cysneiros – G.MelloClosed16+11.2+0.70+2.12
Round 6A.KowalskiA.Ruia – A.SequeiraClosed16-4.5-0.28-0.19
Round 7A.KowalskiP.Grenthe – P.VanhoutteClosed16+0.3+0.02+1.00
Round 8A.KowalskiC.Mosca – A.VivaldiClosed16-4.6-0.29-1.56
Round 11A.KowalskiA.El Askalani – M.GhamrawyClosed16+16.3+1.02+0.75
Round 12A.KowalskiG.Jorgensen – T.BergClosed16-19.7-1.23-2.69
Round 14A.KowalskiR.Ramer – C.NiemeijerClosed16-1.3-0.08+0.31
Round 15A.KowalskiJ.Khalid – S.AkhtarClosed16+34.6+2.16+0.88
Round 16A.KowalskiG.Gramatikov – D.PetkanovOpen16+20.6+1.29+1.31
Round 17A.KowalskiW.Haughie – R.KlingerOpen16+12.5+0.78+0.62
Round 18A.KowalskiA.Fisher – F.HamiltonOpen16+8.5+0.53-0.25
Round 20A.KowalskiR.Marsal – U.WenningClosed16+24.3+1.52+2.50
Round 21A.KowalskiA.Yamada – K.OhnoClosed16+27.1+1.69+2.06

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
+13.2Round 11🇪🇬 EGYPT143NTx♣A-4+12
+11.0Round 2🇭🇰 CHINA HONG KONG195♦x♥Q-2+12
+10.5Round 17🇦🇺 AUSTRALIA44♥♦J-1+12
+10.5Round 20🇩🇪 GERMANY324♥x♣3=+15
+10.2Round 15🇵🇰 PAKISTAN53NT♠3-1+12
+10.0Round 7🇫🇷 FRANCE145♠♣A+1+11
+9.9Round 18🇺🇸 USA 1216♥♠2-2+11
+9.9Round 20🇩🇪 GERMANY196♦♣7-2+11
+9.6Round 6🇮🇳 INDIA273NT♦Q-1+14
+9.2Round 21🇯🇵 JAPAN34♥♥9-1+13
+9.1Round 3🇬🇵 GUADELOUPE64♠♣10-1+6
+8.9Round 16🇧🇬 BULGARIA286♣♠A-1+10
+8.7Round 7🇫🇷 FRANCE163NT♥2+2+11
+8.4Round 3🇬🇵 GUADELOUPE15♣x♠K-2+9
+8.1Round 21🇯🇵 JAPAN13NT♥9=+6
+7.8Round 4🇮🇩 INDONESIA253N♦Q+1+8
+7.4Round 21🇯🇵 JAPAN162♠x♥A-3+8
+7.2Round 15🇵🇰 PAKISTAN126♣♠2=-2
+7.1Round 11🇪🇬 EGYPT124♥♣Q=+7
+7.0Round 8🇮🇹 ITALY204♥♠3=+0
+7.0Round 15🇵🇰 PAKISTAN103♠♣7-3+5
+6.7Round 18🇺🇸 USA 1235♦♥4-1+12
+6.2Round 18🇺🇸 USA 1316♥♣6=+0
+6.0Round 16🇧🇬 BULGARIA181♠♥Q+1+1
+5.8Round 7🇫🇷 FRANCE12♥x♣Q-3+9
+5.8Round 8🇮🇹 ITALY263♦♣5-2+7
+5.6Round 11🇪🇬 EGYPT104♠♥A-1+6
+5.6Round 15🇵🇰 PAKISTAN24♣♥4-1+6
+5.4Round 8🇮🇹 ITALY253NT♦3+1+1
+5.2Round 4🇮🇩 INDONESIA324♠♣8-1+12
+4.9Round 11🇪🇬 EGYPT112♦♠8=+5
+4.9Round 16🇧🇬 BULGARIA176♥♦5+1-11
+4.9Round 20🇩🇪 GERMANY224♠♣5=+10
+4.7Round 8🇮🇹 ITALY323NT♠2+1+0
+4.6Round 4🇮🇩 INDONESIA233♥♠Q-1+6
+4.4Round 6🇮🇳 INDIA303NT♥Q-1+8
+4.3Round 16🇧🇬 BULGARIA266♠♦6=+0
+4.2Round 5🇧🇷 BRAZIL154♥x♠4-1+6
+4.2Round 15🇵🇰 PAKISTAN42NT♥K=-1
+4.1Round 21🇯🇵 JAPAN123♦♠J=+0
+4.0Round 5🇧🇷 BRAZIL43NT♠2+1+1
+4.0Round 20🇩🇪 GERMANY243N♥K=+0
+3.9Round 3🇬🇵 GUADELOUPE113♠♥4-2+5
+3.9Round 8🇮🇹 ITALY313♥♠K-2+5
+3.9Round 11🇪🇬 EGYPT62♠♦Q+2-1
+3.9Round 20🇩🇪 GERMANY204♠♦A-1+6
+3.7Round 5🇧🇷 BRAZIL144♠♥7-1+10
+3.7Round 14🇳🇱 NETHERLANDS193NT♣3-1+10
+3.5Round 4🇮🇩 INDONESIA204♥♦4=-1
+3.3Round 5🇧🇷 BRAZIL83♠♦K=+0
+3.3Round 12🇩🇰 DENMARK243NT♥A+1+0
+3.3Round 17🇦🇺 AUSTRALIA93N♠7=-1
+3.2Round 17🇦🇺 AUSTRALIA71N♠7+1-1
+3.0Round 2🇭🇰 CHINA HONG KONG313♦♥2+1+0
+3.0Round 3🇬🇵 GUADELOUPE56NT♦10+1-13
+3.0Round 12🇩🇰 DENMARK184♥♦3=-1
+3.0Round 16🇧🇬 BULGARIA201♠♣K-2-9
+2.9Round 2🇭🇰 CHINA HONG KONG294♥♦4+1+0
+2.9Round 12🇩🇰 DENMARK173♠♥A-2+0
+2.9Round 14🇳🇱 NETHERLANDS274♠♥A-2+0
+2.8Round 12🇩🇰 DENMARK304♠♦A-2+5
+2.7Round 3🇬🇵 GUADELOUPE92♦x♦Q-2+2
+2.7Round 15🇵🇰 PAKISTAN83♠♥Q=+1
+2.6Round 15🇵🇰 PAKISTAN133♦♠K+1+0
+2.5Round 16🇧🇬 BULGARIA212♠♦10+1+11
+2.4Round 12🇩🇰 DENMARK274♠x♦A-1-1
+2.3Round 7🇫🇷 FRANCE122NT♠6=+0
+2.3Round 16🇧🇬 BULGARIA242♠♠8=+0
+2.3Round 17🇦🇺 AUSTRALIA63♥♦A=+0
+2.2Round 8🇮🇹 ITALY196♠x♣A-2-5
+2.2Round 20🇩🇪 GERMANY302N♠T+1+1
+2.1Round 2🇭🇰 CHINA HONG KONG204♥♠9=+3
+2.1Round 20🇩🇪 GERMANY234♠x♥Q-2+0
+2.1Round 21🇯🇵 JAPAN112♣♠5=+6
+2.0Round 7🇫🇷 FRANCE34♥♠2-1+5
+2.0Round 7🇫🇷 FRANCE53♥♦3+1+1
+2.0Round 17🇦🇺 AUSTRALIA83N♠A=+11
+1.9Round 5🇧🇷 BRAZIL61NT♦K+2+1
+1.9Round 12🇩🇰 DENMARK203NT♣4+1+0
+1.9Round 14🇳🇱 NETHERLANDS182♠♠3+2+1
+1.9Round 15🇵🇰 PAKISTAN142♦♦9+2+1
+1.9Round 20🇩🇪 GERMANY253♦♠K-2+1
+1.8Round 3🇬🇵 GUADELOUPE141NT♠J+2+1
+1.8Round 17🇦🇺 AUSTRALIA113N♥6=+3
+1.7Round 4🇮🇩 INDONESIA182♥♠J+1+7
+1.7Round 17🇦🇺 AUSTRALIA123N♥4-1+10
+1.7Round 17🇦🇺 AUSTRALIA143♦♠7-1+4
+1.6Round 14🇳🇱 NETHERLANDS253♣♥K-1-2
+1.5Round 6🇮🇳 INDIA184♥♠10+1+0
+1.5Round 12🇩🇰 DENMARK322♣♦A=-1
+1.4Round 6🇮🇳 INDIA252♠♠4+2+1
+1.4Round 21🇯🇵 JAPAN75♣♦J-2+2
+1.3Round 5🇧🇷 BRAZIL72♥♣K+2+10
+1.3Round 17🇦🇺 AUSTRALIA21N♥6=+0
+1.3Round 18🇺🇸 USA 1181♥♣4+1-7
+1.3Round 18🇺🇸 USA 1223♣♥K+1+0
+1.2Round 5🇧🇷 BRAZIL34♠♥A+1+1
+1.2Round 6🇮🇳 INDIA214♠♣Q-1+5
+1.2Round 6🇮🇳 INDIA314♠♥A+1+8
+1.2Round 11🇪🇬 EGYPT154♥♣Q=-1
+1.2Round 14🇳🇱 NETHERLANDS243♦♣A-1+4
+1.2Round 16🇧🇬 BULGARIA194♠♦8+1+0
+1.2Round 18🇺🇸 USA 1261N♣K-3+8
+1.1Round 2🇭🇰 CHINA HONG KONG225♣x♠A-1+0
+1.1Round 7🇫🇷 FRANCE61NT♣4=-1
+1.0Round 4🇮🇩 INDONESIA173N♥T+3-11
+1.0Round 4🇮🇩 INDONESIA313N♥2=+1
+1.0Round 5🇧🇷 BRAZIL93♣♣2=+0
+1.0Round 14🇳🇱 NETHERLANDS314♥♠Q=+0
+1.0Round 15🇵🇰 PAKISTAN74♥♥7=+3
+1.0Round 16🇧🇬 BULGARIA314♥♣A=+1
+1.0Round 18🇺🇸 USA 1244♥♦7-1+5
+1.0Round 21🇯🇵 JAPAN44♥♠K+1+4
+1.0Round 21🇯🇵 JAPAN133♣♣A+2+1
+0.9Round 8🇮🇹 ITALY293♣♥K=+0
+0.8Round 14🇳🇱 NETHERLANDS233♦♦7=-1
+0.7Round 21🇯🇵 JAPAN91♠♣4+2+8
+0.6Round 16🇧🇬 BULGARIA223NT♠Q=+13
+0.6Round 20🇩🇪 GERMANY284♠♦K=+6
+0.4Round 21🇯🇵 JAPAN62♠♠3=+0
+0.3Round 2🇭🇰 CHINA HONG KONG234♠♣K+1+0
+0.3Round 2🇭🇰 CHINA HONG KONG273♥♦A-1-3
+0.3Round 5🇧🇷 BRAZIL53NT♥9+2+0
+0.3Round 11🇪🇬 EGYPT82♠♣A+2+1
+0.3Round 11🇪🇬 EGYPT93NT♦Q+2+11
+0.3Round 14🇳🇱 NETHERLANDS214♥♣A=+0
+0.3Round 21🇯🇵 JAPAN55♦♥6+1+11
+0.2Round 2🇭🇰 CHINA HONG KONG244♥♣Q+1+0
+0.2Round 6🇮🇳 INDIA194♠♦K=-1
+0.2Round 6🇮🇳 INDIA222♥♦Q=+1
+0.2Round 7🇫🇷 FRANCE112♠♠Q-1-2
+0.2Round 8🇮🇹 ITALY185♦♥A=+1
+0.2Round 14🇳🇱 NETHERLANDS304♠♥A+1+0
+0.2Round 15🇵🇰 PAKISTAN92♦♦3+1+0
+0.2Round 15🇵🇰 PAKISTAN114♠♠3+1+0
+0.1Round 11🇪🇬 EGYPT42♣♥5=+2
+0.1Round 12🇩🇰 DENMARK236♣x♠6-1-9
+0.1Round 17🇦🇺 AUSTRALIA134♦♣K=-2
+0.1Round 20🇩🇪 GERMANY292♣♣J+1+0
+0.0Round 5🇧🇷 BRAZIL24♠♥9+1+0
+0.0Round 6🇮🇳 INDIA325♦♣3+2-11
-0.0Round 15🇵🇰 PAKISTAN165♦x♠2-1-7
-0.0Round 20🇩🇪 GERMANY213N♥9+2+0
-0.1Round 5🇧🇷 BRAZIL16♦♥J=-12
-0.1Round 15🇵🇰 PAKISTAN33NT♠6+1+1
-0.1Round 16🇧🇬 BULGARIA324♠♦10+1+0
-0.2Round 5🇧🇷 BRAZIL101NT♥5=+1
-0.2Round 6🇮🇳 INDIA263NT♥J+3+13
-0.2Round 12🇩🇰 DENMARK294♠♣A=-1
-0.2Round 20🇩🇪 GERMANY184♣♠T-1+0
-0.3Round 3🇬🇵 GUADELOUPE123NT♥5+1-1
-0.3Round 4🇮🇩 INDONESIA244♠♣T+1+0
-0.3Round 6🇮🇳 INDIA236♠♦A=+0
-0.3Round 6🇮🇳 INDIA294♠♥8+1-10
-0.4Round 2🇭🇰 CHINA HONG KONG324♠♥A=+0
-0.5Round 4🇮🇩 INDONESIA294♠♣2+1-13
-0.5Round 5🇧🇷 BRAZIL115♣♠A+1+0
-0.5Round 7🇫🇷 FRANCE24♠♥9-1-5
-0.5Round 18🇺🇸 USA 1294♠♣Q+1+0
-0.6Round 7🇫🇷 FRANCE92♠♣6+1+6
-0.7Round 2🇭🇰 CHINA HONG KONG283NT♥6+2-1
-0.7Round 12🇩🇰 DENMARK254♠♣4+1+0
-0.7Round 14🇳🇱 NETHERLANDS281NT♥K=+1
-0.7Round 17🇦🇺 AUSTRALIA14♥♠2+2-2
-0.8Round 12🇩🇰 DENMARK284♥♠10=+0
-0.9Round 8🇮🇹 ITALY233NT♣5=+2
-0.9Round 11🇪🇬 EGYPT74♥♣9+2-1
-0.9Round 18🇺🇸 USA 1193N♠3-1-12
-1.0Round 7🇫🇷 FRANCE43♥♦3+1+8
-1.0Round 11🇪🇬 EGYPT53♣♣A=+0
-1.0Round 18🇺🇸 USA 1203N♥8=-2
-1.0Round 21🇯🇵 JAPAN143NT♥A+3-1
-1.1Round 11🇪🇬 EGYPT32♠♣3+2-8
-1.2Round 3🇬🇵 GUADELOUPE132♦♣J-1-6
-1.2Round 5🇧🇷 BRAZIL134♠♣10+2+17
-1.2Round 8🇮🇹 ITALY282♦♠J-1-3
-1.3Round 3🇬🇵 GUADELOUPE153NT♦9=+1
-1.3Round 18🇺🇸 USA 1274♥♠4+1+0
-1.5Round 8🇮🇹 ITALY223NT♠3+3-1
-1.5Round 14🇳🇱 NETHERLANDS174♠♦5+1-11
-1.5Round 18🇺🇸 USA 1171N♦4-3-2
-1.5Round 21🇯🇵 JAPAN86♠♦4=+0
-1.6Round 4🇮🇩 INDONESIA303♠♥A+2-6
-1.6Round 17🇦🇺 AUSTRALIA32♥♠7-2-5
-1.6Round 21🇯🇵 JAPAN106♦♥3-1-6
-1.7Round 2🇭🇰 CHINA HONG KONG213♥♣K-1-4
-1.7Round 5🇧🇷 BRAZIL122♣♥3-2-1
-1.7Round 7🇫🇷 FRANCE103♠♣6-2-9
-1.7Round 11🇪🇬 EGYPT133♠♦2=-6
-1.7Round 16🇧🇬 BULGARIA303NT♥4+2+11
-1.8Round 4🇮🇩 INDONESIA262♠♣2+1+0
-1.8Round 17🇦🇺 AUSTRALIA102♥♦J=-6
-1.8Round 18🇺🇸 USA 1283♦♦2+2+10
-1.9Round 4🇮🇩 INDONESIA282N♣5+1-1
-1.9Round 6🇮🇳 INDIA242♦♥7+1-5
-1.9Round 15🇵🇰 PAKISTAN15♦♠Q-2+0
-2.0Round 12🇩🇰 DENMARK225♥x♣4-1+5
-2.0Round 14🇳🇱 NETHERLANDS204♥♦9+1+0
-2.0Round 14🇳🇱 NETHERLANDS294♠♥7=+1
-2.1Round 3🇬🇵 GUADELOUPE104♥♣J-2-8
-2.1Round 21🇯🇵 JAPAN23NT♥4+3-13
-2.2Round 16🇧🇬 BULGARIA292♠♦9-1-5
-2.3Round 2🇭🇰 CHINA HONG KONG252♠♣8+1-10
-2.3Round 2🇭🇰 CHINA HONG KONG304♠♣K-1-8
-2.3Round 11🇪🇬 EGYPT23♣♠9+1-7
-2.3Round 14🇳🇱 NETHERLANDS222♠♦7=+1
-2.4Round 2🇭🇰 CHINA HONG KONG266♥♥J+1-2
-2.4Round 6🇮🇳 INDIA175♦♣7-1-5
-2.4Round 18🇺🇸 USA 1253♦♦4=-5
-2.4Round 21🇯🇵 JAPAN153♠♣A=-6
-2.5Round 3🇬🇵 GUADELOUPE24♠♦4-1-5
-2.5Round 4🇮🇩 INDONESIA212♠♣Q-1-5
-2.5Round 16🇧🇬 BULGARIA251NT♥2-2+0
-2.6Round 20🇩🇪 GERMANY273♣♦T=+0
-2.7Round 15🇵🇰 PAKISTAN154♥♥5+2-5
-2.8Round 8🇮🇹 ITALY244♥♥4=+0
-2.8Round 17🇦🇺 AUSTRALIA54♠♣8+1+0
-2.8Round 20🇩🇪 GERMANY264♠♥3=+0
-2.9Round 14🇳🇱 NETHERLANDS323NT♥Q-2+6
-3.1Round 2🇭🇰 CHINA HONG KONG173NT♣9-2-5
-3.1Round 8🇮🇹 ITALY303♥♣K-3-1
-3.1Round 18🇺🇸 USA 1303N♠T+1-11
-3.2Round 3🇬🇵 GUADELOUPE164♠♥J+1-4
-3.2Round 16🇧🇬 BULGARIA232♠♥A+1+0
-3.3Round 3🇬🇵 GUADELOUPE34♥♠2-1-5
-3.4Round 2🇭🇰 CHINA HONG KONG183♣♣3+1+0
-3.5Round 12🇩🇰 DENMARK313♠♥6=-7
-3.5Round 14🇳🇱 NETHERLANDS262NT♥K-1-5
-3.5Round 15🇵🇰 PAKISTAN63NT♠4+2+0
-3.6Round 20🇩🇪 GERMANY313♦♥8=+0
-4.0Round 3🇬🇵 GUADELOUPE84♠♦2+2-11
-4.1Round 7🇫🇷 FRANCE154NT♥Q=+5
-4.1Round 17🇦🇺 AUSTRALIA163N♦Q+4-10
-4.4Round 4🇮🇩 INDONESIA225♥♦J+1+3
-4.4Round 16🇧🇬 BULGARIA272♠♠8+2-1
-4.4Round 17🇦🇺 AUSTRALIA151N♠Q-2-3
-4.6Round 8🇮🇹 ITALY211NT♥10-2-3
-5.0Round 4🇮🇩 INDONESIA275♦♣7=-11
-5.5Round 11🇪🇬 EGYPT16♣♠A=-10
-5.5Round 12🇩🇰 DENMARK194♠x♥A-2-4
-5.6Round 4🇮🇩 INDONESIA195♠x♥K+1+2
-6.0Round 5🇧🇷 BRAZIL164♥♣K+1+0
-6.3Round 7🇫🇷 FRANCE74♥♣4=-9
-6.6Round 18🇺🇸 USA 1324♥♠A=-11
-6.6Round 20🇩🇪 GERMANY176♦♣Q-1-10
-7.8Round 7🇫🇷 FRANCE134♠♦J=+0
-7.8Round 8🇮🇹 ITALY274♥♣4+2-14
-7.8Round 11🇪🇬 EGYPT166♦♦5=+2
-8.0Round 6🇮🇳 INDIA282♥♦A-3-10
-9.8Round 7🇫🇷 FRANCE84♠♦9-1-14
-9.9Round 12🇩🇰 DENMARK266♥♣J-1-13
-10.5Round 3🇬🇵 GUADELOUPE74♠♣A=-10
-11.1Round 6🇮🇳 INDIA203NT♠9+1-11
-12.8Round 8🇮🇹 ITALY176♣x♠4-4-14
-13.9Round 3🇬🇵 GUADELOUPE46NT♠7-2-17
-15.0Round 12🇩🇰 DENMARK213♠x♣J-4-16