🇵🇱 JASSEM Krzysztof · POLAND

80rank
-22.1Butler · 176 bds
-0.13per board
±4.6swing
+0.07vs par /bd · #62/126
-0.16adjusted /bd
Butler per round: -6.9 12 16.4 8.9 -5.2 11 -1.3 9.2 -17.4 -12.3 -36.5by round

vs par split: bidding +0.26 · play -0.16

Strength of schedule: opponents averaged -0.03/bd (an average draw) → opponent-adjusted -0.16/bd

Card play — on target: opening leads 90.3% #9 of 126 · declarer play 76.9% #54 of 126 · defence 86.2% #82 of 126

Card play by contract type — on target
vs NTvs a suit
Opening leads66.7% (6)96.0% (25)
Declarer play54.5% (11)85.7% (28)
Defence74.2% (31)92.9% (56)

Opening leads by suit led: ♠ 100.0% (4) · ♥ 77.8% (9) · ♦ 90.0% (10) · ♣ 100.0% (8)

vs par by strain: NT -0.24 (55) · a suit +0.21 (121)

vs par by level: part-score +0.59 (59) · game +0.07 (101) · slam -1.88 (16)

By role: declaring -0.30/bd (-2.38 vs par · 89) · defending +0.05/bd (+2.58 vs par · 87)

By vulnerability: vulnerable -0.33/bd (-0.18 vs par · 88) · not vulnerable +0.08/bd (+0.32 vs par · 88)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1M.MazurkiewiczJ.Smith – P.ThurstonClosed16-6.9-0.43+0.69
Round 3M.MazurkiewiczM.Reid – P.NewellClosed16+12.0+0.75-0.62
Round 4M.MazurkiewiczP.Zimmermann – F.MultonClosed16+16.4+1.02+1.19
Round 7M.MazurkiewiczA.Hussein – T.SadekOpen16+8.9+0.56-0.06
Round 9M.MazurkiewiczJ.Ho – N.ShenClosed16-5.2-0.33-0.88
Round 10M.MazurkiewiczC.Pellegrini – H.CamberosOpen16+11.0+0.69+2.50
Round 12M.MazurkiewiczA.Sementa – G.DuboinClosed16-1.3-0.08+0.56
Round 14M.MazurkiewiczM.Rehder – M.GromoellerOpen16+9.2+0.57-1.69
Round 15M.MazurkiewiczC.Ju – Z.ShiClosed16-17.4-1.09+0.31
Round 16M.MazurkiewiczR.Tobing – T.AsbiOpen16-12.3-0.77-0.12
Round 18M.MazurkiewiczA.Robson – A.AllfreyClosed16-36.5-2.28-1.12

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
+13.4Round 3🇳🇿 NEW ZEALAND23♥x♦A+1+13
+12.7Round 4🇲🇨 MONACO205♦x♦2-3+12
+11.4Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND183NT♣7-2+13
+9.9Round 10🇦🇷 ARGENTINA213NT♥5-1+15
+9.1Round 14🇩🇪 GERMANY306♥♠4=+0
+9.0Round 9🇹🇼 CHINESE TAIPEI124♠♥2-5+9
+8.0Round 1🇨🇦 CANADA42♦♦2-3+10
+8.0Round 10🇦🇷 ARGENTINA175♣x♠A=+4
+7.7Round 7🇪🇬 EGYPT86♥♠A-2+5
+7.4Round 3🇳🇿 NEW ZEALAND44♠♥A-1+6
+7.4Round 14🇩🇪 GERMANY293NT♣4-3+14
+7.2Round 14🇩🇪 GERMANY234♠♣A=+13
+7.1Round 15🇨🇳 CHINA151NT♦J+2+10
+7.0Round 7🇪🇬 EGYPT23NT♠6+3+12
+7.0Round 16🇮🇩 INDONESIA312♠♠Q=+11
+6.9Round 7🇪🇬 EGYPT75♠♥3+1+13
+6.9Round 9🇹🇼 CHINESE TAIPEI102♠♣K+2+10
+6.5Round 14🇩🇪 GERMANY207♠♦J=+0
+6.2Round 15🇨🇳 CHINA125♣x♥K=+13
+6.1Round 4🇲🇨 MONACO313NTx♣Q-2+5
+6.0Round 1🇨🇦 CANADA125♣x♦A=+8
+6.0Round 16🇮🇩 INDONESIA324♥♦8=+7
+5.7Round 3🇳🇿 NEW ZEALAND122♥♣K+2+6
+5.2Round 7🇪🇬 EGYPT52NT♥2+1+10
+5.0Round 4🇲🇨 MONACO196♥♦7=+0
+4.8Round 14🇩🇪 GERMANY223♠♣9=+1
+4.7Round 12🇮🇹 ITALY295♣♣5-1+7
+4.5Round 10🇦🇷 ARGENTINA184♠♦K-1+12
+4.2Round 7🇪🇬 EGYPT112♣♣3+1+6
+4.2Round 9🇹🇼 CHINESE TAIPEI13NT♦5+2+1
+4.2Round 12🇮🇹 ITALY305♠+1-8
+4.0Round 12🇮🇹 ITALY174♥♠8-1+10
+3.7Round 1🇨🇦 CANADA103NT♦2=+0
+3.2Round 12🇮🇹 ITALY314♠♣2=+13
+3.0Round 3🇳🇿 NEW ZEALAND93NT♥7+1+13
+3.0Round 7🇪🇬 EGYPT44♥♥3=+0
+3.0Round 14🇩🇪 GERMANY193♣♦J+1-7
+2.9Round 1🇨🇦 CANADA143♥♦Q-1+10
+2.7Round 14🇩🇪 GERMANY273♥♦Q+1+1
+2.6Round 3🇳🇿 NEW ZEALAND36♥♠K=+0
+2.6Round 9🇹🇼 CHINESE TAIPEI81NT♦7=+0
+2.5Round 3🇳🇿 NEW ZEALAND134♠♥2+1+0
+2.3Round 3🇳🇿 NEW ZEALAND83NT♦2+2-10
+2.0Round 1🇨🇦 CANADA94♥♠10-1+5
+2.0Round 7🇪🇬 EGYPT62♠♦3+1+1
+2.0Round 10🇦🇷 ARGENTINA253♥♣6=+0
+2.0Round 14🇩🇪 GERMANY244♥♥3+1+1
+1.9Round 3🇳🇿 NEW ZEALAND51NT♠J-1+4
+1.8Round 1🇨🇦 CANADA164♠x♠2-1+7
+1.8Round 10🇦🇷 ARGENTINA244♥♦A-2-1
+1.4Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND273NT♥Q=+15
+1.3Round 4🇲🇨 MONACO174♦♦A-1+4
+1.3Round 9🇹🇼 CHINESE TAIPEI43NT♣6+1+0
+1.3Round 12🇮🇹 ITALY252♠♣5-1+4
+1.2Round 9🇹🇼 CHINESE TAIPEI73NT♠3+2+0
+1.1Round 10🇦🇷 ARGENTINA192♥♠Q=-1
+1.0Round 4🇲🇨 MONACO213♥♦T-1-3
+1.0Round 15🇨🇳 CHINA31NT♠J+1+7
+0.9Round 12🇮🇹 ITALY323NT♠3-1+5
+0.8Round 4🇲🇨 MONACO293♦♣3=-1
+0.7Round 1🇨🇦 CANADA11♠♥5+1+0
+0.6Round 9🇹🇼 CHINESE TAIPEI155♣♥K+1-11
+0.6Round 10🇦🇷 ARGENTINA224♠♥K-1+10
+0.5Round 16🇮🇩 INDONESIA214♥♦K=-1
+0.3Round 4🇲🇨 MONACO264♠♦A=-1
+0.3Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND215♥♠K=+0
+0.2Round 4🇲🇨 MONACO281NTx♥J-1-1
+0.2Round 7🇪🇬 EGYPT163♣♥3=+0
+0.2Round 10🇦🇷 ARGENTINA262♠♦A+2+1
+0.2Round 12🇮🇹 ITALY214♠♦K+1+0
+0.2Round 15🇨🇳 CHINA44♠♥A+1+4
+0.2Round 16🇮🇩 INDONESIA252♣♠A+1+0
+0.2Round 16🇮🇩 INDONESIA292♥♦9=+1
+0.1Round 4🇲🇨 MONACO251NT♥5-2+1
+0.1Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND294♥♦3=-1
-0.0Round 1🇨🇦 CANADA34♠♠5+1+0
+0.0Round 3🇳🇿 NEW ZEALAND114♥♣2+1+0
-0.0Round 10🇦🇷 ARGENTINA294♥♣4+1+0
-0.0Round 12🇮🇹 ITALY243♣♠K=-5
-0.0Round 12🇮🇹 ITALY271NT♥8+3+6
+0.0Round 15🇨🇳 CHINA73NT♣6=-1
-0.0Round 15🇨🇳 CHINA134♥♦2+1+0
-0.0Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND323♣x♥Q-1+5
-0.2Round 3🇳🇿 NEW ZEALAND163NT♠2+2-11
-0.4Round 4🇲🇨 MONACO245♠♣K+1+11
-0.4Round 12🇮🇹 ITALY193NT♦8+2+0
-0.4Round 15🇨🇳 CHINA161NT♠6-2-1
-0.4Round 16🇮🇩 INDONESIA303NT♦Q=-1
-0.5Round 1🇨🇦 CANADA56♠♥K=+13
-0.5Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND204NT+2+1
-0.6Round 10🇦🇷 ARGENTINA271♥♠6-1-2
-0.6Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND171NT♣3+2+6
-0.7Round 7🇪🇬 EGYPT33NT♥3+2-13
-0.7Round 10🇦🇷 ARGENTINA201♠♦9+1+0
-0.7Round 10🇦🇷 ARGENTINA286♦♠4+1+13
-0.7Round 14🇩🇪 GERMANY253NT♦5+2+0
-0.7Round 16🇮🇩 INDONESIA203♣♠Q+1+0
-0.7Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND316♦♠T+1-11
-0.8Round 4🇲🇨 MONACO324♥♣A=+0
-0.8Round 7🇪🇬 EGYPT124♥♦3=+1
-0.9Round 3🇳🇿 NEW ZEALAND73NT♥Q+2+0
-0.9Round 4🇲🇨 MONACO222♠♦6-2+1
-0.9Round 15🇨🇳 CHINA61♠♦A-1-5
-1.0Round 7🇪🇬 EGYPT102♠♠2=+0
-1.0Round 9🇹🇼 CHINESE TAIPEI134NT♦2+1+4
-1.1Round 4🇲🇨 MONACO303NT♠6-1-10
-1.1Round 12🇮🇹 ITALY284♠♥2=+1
-1.1Round 16🇮🇩 INDONESIA231NT♦5+1+0
-1.2Round 1🇨🇦 CANADA73♥♣K+1+1
-1.2Round 12🇮🇹 ITALY234♥♥2+1+0
-1.2Round 14🇩🇪 GERMANY185♦x♣A-3-3
-1.3Round 3🇳🇿 NEW ZEALAND64♣♠K-1-7
-1.3Round 10🇦🇷 ARGENTINA323NT♠7+2+0
-1.3Round 12🇮🇹 ITALY203NT♦8=+2
-1.3Round 15🇨🇳 CHINA24♠x♠4-2+0
-1.4Round 4🇲🇨 MONACO232NT♣7-1+6
-1.4Round 14🇩🇪 GERMANY173NT♥5=-7
-1.4Round 16🇮🇩 INDONESIA263NT♠Q-1-6
-1.5Round 10🇦🇷 ARGENTINA313NT♥J+3-1
-1.5Round 12🇮🇹 ITALY226♥♠A=+0
-1.5Round 16🇮🇩 INDONESIA173NT♥4+1+0
-1.6Round 15🇨🇳 CHINA83NT♠J+1+0
-1.7Round 12🇮🇹 ITALY263NT♣2-1-12
-1.7Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND251♠♦A+2+0
-1.8Round 1🇨🇦 CANADA85♥♠5-2+0
-1.8Round 9🇹🇼 CHINESE TAIPEI22♠♦4-2+5
-1.9Round 1🇨🇦 CANADA134♠♦10-1-7
-2.0Round 7🇪🇬 EGYPT133NT♦3+2-12
-2.2Round 7🇪🇬 EGYPT144♥♦3-2-6
-2.3Round 16🇮🇩 INDONESIA185♦♣4=+1
-2.5Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND224♠♣A-1-5
-2.7Round 15🇨🇳 CHINA53NT♦J-3-7
-2.7Round 15🇨🇳 CHINA142♥♣Q-1+2
-2.7Round 16🇮🇩 INDONESIA242♠♥T-1-4
-2.8Round 1🇨🇦 CANADA113NT♥6-2-6
-3.1Round 4🇲🇨 MONACO274♠♥4=+1
-3.1Round 9🇹🇼 CHINESE TAIPEI92♥♣A=-5
-3.2Round 16🇮🇩 INDONESIA283NT♠4-2-2
-3.3Round 1🇨🇦 CANADA24♠♠9-1-5
-3.3Round 3🇳🇿 NEW ZEALAND13♥♠2+1-2
-3.3Round 9🇹🇼 CHINESE TAIPEI33♥♥5=+0
-3.4Round 4🇲🇨 MONACO183♥♣A=-6
-3.5Round 10🇦🇷 ARGENTINA303NT♥2-2-5
-3.5Round 15🇨🇳 CHINA13♥♣7=-7
-3.7Round 3🇳🇿 NEW ZEALAND153NT♠2-2-8
-3.8Round 1🇨🇦 CANADA153♥♥3-1-4
-3.8Round 9🇹🇼 CHINESE TAIPEI65♦x♣A-1-5
-4.0Round 16🇮🇩 INDONESIA222♥x♦8-2-5
-4.1Round 9🇹🇼 CHINESE TAIPEI54♠♦K-1-5
-4.2Round 16🇮🇩 INDONESIA193NT♥Q=+1
-4.3Round 14🇩🇪 GERMANY264♠x♦8=-5
-4.4Round 9🇹🇼 CHINESE TAIPEI114♥♥6-5-5
-4.4Round 15🇨🇳 CHINA106♠♥7=+0
-4.6Round 9🇹🇼 CHINESE TAIPEI143NT♠7=-12
-4.6Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND283NT♥2-3-7
-4.7Round 7🇪🇬 EGYPT154♠♥3-2-11
-4.7Round 16🇮🇩 INDONESIA272♠♣K+2-4
-4.9Round 9🇹🇼 CHINESE TAIPEI163NT♣K=+0
-4.9Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND304♥♦5-2-11
-5.0Round 14🇩🇪 GERMANY315♦♥3=-2
-5.8Round 15🇨🇳 CHINA114♥♦Q=+0
-5.9Round 14🇩🇪 GERMANY325♦x♠9-4-4
-6.0Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND234♥x♦A-1-2
-6.1Round 14🇩🇪 GERMANY286♥♦Q+1-13
-6.8Round 3🇳🇿 NEW ZEALAND146♦♠2=+0
-6.8Round 7🇪🇬 EGYPT94♥♣4=-7
-8.1Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND263NT♦4=-10
-8.4Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND196♠♦K=+0
-8.6Round 15🇨🇳 CHINA93♠♥K+1-10
-8.8Round 10🇦🇷 ARGENTINA234♥x♠T=-5
-8.9Round 14🇩🇪 GERMANY216♥♦3-2-16
-9.1Round 7🇪🇬 EGYPT16♠♦8=+0
-10.6Round 3🇳🇿 NEW ZEALAND102♦♠2-3-14
-11.7Round 18🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND244♠♥J=-11
-12.6Round 12🇮🇹 ITALY183♥x♥9-3-14
-16.7Round 1🇨🇦 CANADA66NTx♠A-3-21