🇵🇱 JASSEM Piotr · POLAND

77rank
-12.4Butler · 224 bds
-0.06per board
±4.1swing
+0.07vs par /bd · #49/125
+0.09adjusted /bd
Butler per round: 6.7 -7 25.1 21.4 12.5 -7.2 -6.8 35.6 -25 -18.8 -9.4 -20.6 -14.9 -4by round

vs par split: bidding -0.35 · play +0.08

Strength of schedule: opponents averaged +0.14/bd (a tough draw) → opponent-adjusted +0.09/bd

Card play — on target: opening leads 90.0% #17 of 125 · declarer play 84.4% #18 of 125 · defence 90.9% #27 of 125

Card play by contract type — on target
vs NTvs a suit
Opening leads·90.0% (30)
Declarer play·84.4% (45)
Defence·90.9% (66)

Opening leads by suit led: ♠ 90.0% (10) · ♥ 87.5% (8) · ♦ 87.5% (8) · ♣ 100.0% (4)

vs par by strain: a suit -0.34 (161)

vs par by level: part-score +0.85 (65) · game -0.80 (83) · slam -3.31 (13)

By role: declaring -0.08/bd (-1.48 vs par · 119) · defending -0.03/bd (+1.82 vs par · 105)

By vulnerability: vulnerable +0.26/bd (+0.51 vs par · 112) · not vulnerable -0.37/bd (-0.38 vs par · 112)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2K.MartensN.Bocchi – G.DuboinOpen16+6.7+0.42+2.50
Round 3K.MartensJ.Shih – C.ShenOpen16-7.0-0.44-0.81
Round 5K.MartensT.Masood – J.AhmedOpen16+25.1+1.57+3.25
Round 6K.MartensT.Bakkeren – H.BertensOpen16+21.4+1.34+0.88
Round 7K.MartensM.Rosenberg – Z.MahmoodClosed16+12.5+0.78-1.06
Round 8K.MartensN.Fitzgibbon – A.MesburClosed16-7.2-0.45-0.06
Round 10K.MartensT.Cope – G.HolmanOpen16-6.8-0.42-0.38
Round 12K.MartensA.Goel – K.MukherjeeClosed16+35.6+2.23+1.94
Round 13K.MartensJ.Meckstroth – E.RodwellOpen16-25.0-1.56-1.94
Round 14K.MartensH.Shi – Z.ZhuangOpen16-18.8-1.18-1.50
Round 16K.MartensJ.Bojoh – J.GeorgeOpen16-9.4-0.59-1.88
Round 17K.MartensG.Helgemo – T.HelnessClosed16-20.6-1.29-1.00
Round 19K.MartensD.Chen – K.FurutaClosed16-14.9-0.93-0.56
Round 20K.MartensG.Chagas – M.Villas-BoasClosed16-4.0-0.25+1.56

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
+12.0Round 5🇵🇰 PAKISTAN152♥xx♠Q=+18
+11.9Round 6🇳🇱 NETHERLANDS103N♣Q-3+14
+10.5Round 19🇯🇵 JAPAN194♣x♠A=+12
+10.4Round 12🇮🇳 INDIA67Nx♣K-2+15
+9.4Round 5🇵🇰 PAKISTAN13N♦10=+7
+9.2Round 5🇵🇰 PAKISTAN123N♣3-1+10
+8.7Round 20🇧🇷 BRAZIL153N♥7-2+13
+8.1Round 7🇺🇸 USA 193♠♥2=+11
+8.1Round 14🇨🇳 CHINA SMEG43N♥Q-2+13
+7.4Round 5🇵🇰 PAKISTAN95♦x♥A=+9
+7.1Round 6🇳🇱 NETHERLANDS114♠♦K=+7
+7.0Round 2🇮🇹 ITALY154♠♥5+2+12
+7.0Round 6🇳🇱 NETHERLANDS94♥♦J+3+14
+6.8Round 2🇮🇹 ITALY15♣x♣3-2+5
+6.1Round 5🇵🇰 PAKISTAN54♥♦5=+0
+6.1Round 13🇺🇸 USA 2183N♦6-2+6
+6.0Round 3🇹🇼 CHINESE TAIPEI123N♠Q-2+6
+5.4Round 3🇹🇼 CHINESE TAIPEI14♥♦7-2+11
+4.8Round 12🇮🇳 INDIA123N♦10-2+6
+4.7Round 12🇮🇳 INDIA26♦♠A=+11
+4.7Round 12🇮🇳 INDIA83N♠J=+0
+4.7Round 20🇧🇷 BRAZIL73N♠10-2+13
+4.6Round 5🇵🇰 PAKISTAN143N♣6=-1
+4.5Round 16🇮🇩 INDONESIA63♥♠A-2+3
+4.4Round 6🇳🇱 NETHERLANDS26♠♦3+1-11
+4.4Round 12🇮🇳 INDIA73♠♦A-1+5
+4.4Round 12🇮🇳 INDIA95♦♣9+1+1
+4.3Round 8🇮🇪 IRELAND244♥♦A-2+6
+4.3Round 10🇿🇦 SOUTH AFRICA63♠♣A+1+7
+4.3Round 17🇳🇴 NORWAY213♥♠8=+1
+4.2Round 16🇮🇩 INDONESIA111N♥2+3+7
+4.0Round 7🇺🇸 USA 1146♠x♥A-2+0
+4.0Round 12🇮🇳 INDIA34♥♦4=+0
+3.9Round 2🇮🇹 ITALY134♠♥10+1+0
+3.8Round 20🇧🇷 BRAZIL24♠♣A=+6
+3.7Round 8🇮🇪 IRELAND284♥♦7+1+4
+3.6Round 17🇳🇴 NORWAY173♥♣3=+1
+3.5Round 3🇹🇼 CHINESE TAIPEI151♠x♠4=+6
+3.5Round 7🇺🇸 USA 133N♦5-1+4
+3.5Round 10🇿🇦 SOUTH AFRICA21N♥5=+5
+3.5Round 10🇿🇦 SOUTH AFRICA82♠♣-2+0
+3.4Round 17🇳🇴 NORWAY193N♥9-6+14
+3.2Round 2🇮🇹 ITALY26♠♣6=+0
+3.2Round 7🇺🇸 USA 113♥♦A+1+2
+3.1Round 10🇿🇦 SOUTH AFRICA134♥♦K-1+6
+2.9Round 6🇳🇱 NETHERLANDS145♥x♦J=+8
+2.8Round 2🇮🇹 ITALY164♠♠8=+0
+2.7Round 8🇮🇪 IRELAND312♥♠6+1+1
+2.7Round 10🇿🇦 SOUTH AFRICA164♦♥A=+0
+2.6Round 20🇧🇷 BRAZIL92♠♦5-1+5
+2.3Round 6🇳🇱 NETHERLANDS56♣♠K=+0
+2.3Round 7🇺🇸 USA 1102♦♠Q+1+11
+2.3Round 12🇮🇳 INDIA43♠♣Q-1+0
+2.2Round 2🇮🇹 ITALY56♠♠4=+0
+2.2Round 10🇿🇦 SOUTH AFRICA32♠♦5-2+0
+2.2Round 16🇮🇩 INDONESIA162♠♦4+2+1
+2.1Round 3🇹🇼 CHINESE TAIPEI34♥♦A=+0
+2.0Round 3🇹🇼 CHINESE TAIPEI73N♥10+2+1
+2.0Round 5🇵🇰 PAKISTAN115♣♥7-1+5
+2.0Round 20🇧🇷 BRAZIL43N♠8+3+12
+1.9Round 19🇯🇵 JAPAN273N♥Q-2+0
+1.8Round 7🇺🇸 USA 173N♥3=-2
+1.7Round 8🇮🇪 IRELAND263N♥4+2+0
+1.6Round 12🇮🇳 INDIA54♠♠J=+0
+1.5Round 3🇹🇼 CHINESE TAIPEI133N♠6+3+2
+1.5Round 3🇹🇼 CHINESE TAIPEI161N♦9+1+6
+1.5Round 6🇳🇱 NETHERLANDS161N♠J-2-1
+1.5Round 20🇧🇷 BRAZIL114♥♠A+1+0
+1.4Round 19🇯🇵 JAPAN243N♥10+2+0
+1.4Round 20🇧🇷 BRAZIL33♥♠4-1+5
+1.3Round 12🇮🇳 INDIA154♥♣Q-1-2
+1.2Round 7🇺🇸 USA 142♠♠4+1+0
+1.1Round 8🇮🇪 IRELAND184♠♣K+1+0
+1.1Round 14🇨🇳 CHINA SMEG124♥♠4-1+5
+1.0Round 5🇵🇰 PAKISTAN132♥♣Q+1+0
+1.0Round 14🇨🇳 CHINA SMEG134♥♠4=+0
+1.0Round 16🇮🇩 INDONESIA102♠♦10-1+0
+0.9Round 10🇿🇦 SOUTH AFRICA14♠♣5-1+2
+0.9Round 17🇳🇴 NORWAY232♠♠6+1+0
+0.9Round 20🇧🇷 BRAZIL161N♦Q+1+1
+0.8Round 12🇮🇳 INDIA164♠x♥10+2-5
+0.8Round 13🇺🇸 USA 2304♥♣5=+0
+0.8Round 14🇨🇳 CHINA SMEG83♥♠Q-1-2
+0.8Round 19🇯🇵 JAPAN303N♦K=+1
+0.7Round 8🇮🇪 IRELAND295♠♥J+1-1
+0.7Round 14🇨🇳 CHINA SMEG73♥♣8=-10
+0.7Round 19🇯🇵 JAPAN232♦♣Q-1-1
+0.6Round 6🇳🇱 NETHERLANDS32♥♠K+2+6
+0.6Round 10🇿🇦 SOUTH AFRICA73N+1+0
+0.6Round 10🇿🇦 SOUTH AFRICA122♥♠A+2+10
+0.6Round 14🇨🇳 CHINA SMEG144♥♠2+2+1
+0.6Round 16🇮🇩 INDONESIA33N♥9+2-10
+0.6Round 16🇮🇩 INDONESIA122♦♠Q=-1
+0.5Round 16🇮🇩 INDONESIA151N♣=+1
+0.5Round 19🇯🇵 JAPAN295♦♠A=+0
+0.4Round 3🇹🇼 CHINESE TAIPEI91N♥5-1+2
+0.4Round 13🇺🇸 USA 2275♥x♠7-2+0
+0.4Round 17🇳🇴 NORWAY262♠♣7-1-1
+0.4Round 20🇧🇷 BRAZIL143N♥10+3-11
+0.3Round 7🇺🇸 USA 122♠♣2+2-6
+0.3Round 14🇨🇳 CHINA SMEG154♥♦9+3-15
+0.3Round 16🇮🇩 INDONESIA21♠♣4+1+1
+0.2Round 2🇮🇹 ITALY83♥♦K-2+1
+0.2Round 5🇵🇰 PAKISTAN83N♥5+2+0
+0.2Round 6🇳🇱 NETHERLANDS155♥♣A=-4
+0.2Round 7🇺🇸 USA 1123N♠Q+3-11
+0.2Round 14🇨🇳 CHINA SMEG22♥♥8+1+0
+0.2Round 19🇯🇵 JAPAN173♥♥4=+0
+0.1Round 3🇹🇼 CHINESE TAIPEI22♥♣3-1-10
+0.1Round 8🇮🇪 IRELAND224♠♥3=-1
+0.1Round 10🇿🇦 SOUTH AFRICA92♠♥A=+0
+0.1Round 12🇮🇳 INDIA102♣♠8=+11
+0.1Round 13🇺🇸 USA 2194♥♠5+1+0
+0.1Round 13🇺🇸 USA 2205♦♥K=-11
+0.1Round 20🇧🇷 BRAZIL64♥♠8=-1
-0.0Round 16🇮🇩 INDONESIA84♥♥5=+0
+0.0Round 17🇳🇴 NORWAY283♣♥Q+2+6
-0.1Round 8🇮🇪 IRELAND234♥♠4=-1
-0.1Round 13🇺🇸 USA 2314♥♣9-1+5
-0.2Round 12🇮🇳 INDIA133N♣K+1+0
-0.2Round 14🇨🇳 CHINA SMEG13N♣9+1-1
-0.3Round 7🇺🇸 USA 155♦x♦5-2+0
-0.3Round 14🇨🇳 CHINA SMEG52♠♦A-2+6
-0.4Round 2🇮🇹 ITALY113♦♠5-1+3
-0.4Round 3🇹🇼 CHINESE TAIPEI143♥♦A-1+3
-0.4Round 6🇳🇱 NETHERLANDS63N♦J+1+0
-0.4Round 8🇮🇪 IRELAND203N♥5+1+0
-0.4Round 13🇺🇸 USA 223Pass-3
-0.4Round 20🇧🇷 BRAZIL83N♣K+2+0
-0.5Round 2🇮🇹 ITALY142♥♠4+2-6
-0.5Round 16🇮🇩 INDONESIA13N♠3+2-1
-0.5Round 17🇳🇴 NORWAY311Nx♠3-1-2
-0.6Round 17🇳🇴 NORWAY202♦♥9+2+0
-0.7Round 6🇳🇱 NETHERLANDS84♥♦9+1+0
-0.9Round 2🇮🇹 ITALY74♥♣8+1+12
-1.0Round 3🇹🇼 CHINESE TAIPEI83N♥2=+0
-1.0Round 7🇺🇸 USA 1162♥♥8-1-5
-1.1Round 8🇮🇪 IRELAND214♠♦10+1+0
-1.1Round 17🇳🇴 NORWAY291N♦3+1+0
-1.2Round 3🇹🇼 CHINESE TAIPEI113♥♠9+2-6
-1.2Round 7🇺🇸 USA 164♥♠K=-1
-1.2Round 13🇺🇸 USA 2321N♦5=+1
-1.2Round 16🇮🇩 INDONESIA133N♦3+2-1
-1.2Round 17🇳🇴 NORWAY253N♦5+1-1
-1.3Round 6🇳🇱 NETHERLANDS72♠♥4=+0
-1.3Round 16🇮🇩 INDONESIA43♦♠8=+3
-1.4Round 2🇮🇹 ITALY102♠♥4+2+10
-1.4Round 20🇧🇷 BRAZIL126♥x♠A-1-7
-1.5Round 2🇮🇹 ITALY34♠+1+0
-1.5Round 5🇵🇰 PAKISTAN41N♥8+2+0
-1.5Round 13🇺🇸 USA 2172N♦K=+0
-1.6Round 5🇵🇰 PAKISTAN163♠x♦K-1+0
-1.6Round 7🇺🇸 USA 184♥♠4+1-1
-1.6Round 13🇺🇸 USA 2253N♣J+2+0
-1.6Round 17🇳🇴 NORWAY182♥♥+1+0
-1.7Round 7🇺🇸 USA 1113N♠5-1-5
-1.7Round 10🇿🇦 SOUTH AFRICA104♥♠A=-9
-1.8Round 8🇮🇪 IRELAND272♠♥4+1+0
-1.8Round 12🇮🇳 INDIA13♠♥Q-1-6
-1.9Round 19🇯🇵 JAPAN214♠♠7=+1
-2.0Round 2🇮🇹 ITALY42♠♥Q+1-1
-2.0Round 20🇧🇷 BRAZIL134♥♣2-1-6
-2.1Round 5🇵🇰 PAKISTAN24♥♥10+1-7
-2.1Round 7🇺🇸 USA 1153♣♠5=-1
-2.1Round 8🇮🇪 IRELAND253N♦Q=+1
-2.1Round 19🇯🇵 JAPAN205♣♦10=+1
-2.2Round 5🇵🇰 PAKISTAN104♥♣A-2-2
-2.2Round 12🇮🇳 INDIA144♥♠10-3+0
-2.3Round 13🇺🇸 USA 2284♠♥10+1-1
-2.4Round 6🇳🇱 NETHERLANDS124♥♦J=+0
-2.4Round 19🇯🇵 JAPAN315♣♠J-1-6
-2.5Round 6🇳🇱 NETHERLANDS16♣♥3+1-11
-2.5Round 13🇺🇸 USA 2214♥x♠4-1-2
-2.6Round 14🇨🇳 CHINA SMEG34♥♦7-2+1
-2.6Round 16🇮🇩 INDONESIA74♠♦3+1+0
-2.6Round 17🇳🇴 NORWAY224♠♦2=-11
-2.7Round 8🇮🇪 IRELAND196♣♠Q=+2
-2.8Round 2🇮🇹 ITALY94♥♦4+1+10
-2.8Round 3🇹🇼 CHINESE TAIPEI51N♦6=-5
-2.8Round 6🇳🇱 NETHERLANDS45♣x♣2-2+4
-2.8Round 13🇺🇸 USA 2224♥♣3=+1
-3.0Round 19🇯🇵 JAPAN223♠♣8+1-6
-3.4Round 8🇮🇪 IRELAND303N♦5+2-1
-3.4Round 8🇮🇪 IRELAND322♦♣A+1+0
-3.4Round 13🇺🇸 USA 2242♥♦Q+1-7
-3.4Round 19🇯🇵 JAPAN284♥♣K-1-6
-3.5Round 10🇿🇦 SOUTH AFRICA113N♣4=+0
-3.6Round 19🇯🇵 JAPAN254♠♥Q-2-6
-3.7Round 12🇮🇳 INDIA112N♦K-1-5
-3.7Round 14🇨🇳 CHINA SMEG104♠♣7+2-13
-4.0Round 5🇵🇰 PAKISTAN34♠♥Q-1+2
-4.0Round 17🇳🇴 NORWAY302♠x♣Q-1+0
-4.2Round 7🇺🇸 USA 1134♠♥J+2-13
-4.3Round 19🇯🇵 JAPAN323N♦8=+0
-4.5Round 16🇮🇩 INDONESIA94♠♥Q-3-7
-4.5Round 17🇳🇴 NORWAY274♠x♦K=-5
-4.7Round 14🇨🇳 CHINA SMEG163N♦3+4+12
-4.7Round 16🇮🇩 INDONESIA53N♥Q-1-12
-4.8Round 19🇯🇵 JAPAN183N♦8+2-8
-4.9Round 2🇮🇹 ITALY63♣♠J-1-6
-5.0Round 2🇮🇹 ITALY124♥♥8=+0
-5.0Round 10🇿🇦 SOUTH AFRICA44♠♣K-3-5
-5.3Round 14🇨🇳 CHINA SMEG116♦♥4+1-11
-5.4Round 10🇿🇦 SOUTH AFRICA153♦=-11
-5.4Round 13🇺🇸 USA 2261N♥Q=-5
-5.4Round 19🇯🇵 JAPAN263♥♦A-2+9
-5.5Round 3🇹🇼 CHINESE TAIPEI43♠♦Q+1-8
-5.8Round 14🇨🇳 CHINA SMEG63♠x♣A-1+0
-6.2Round 5🇵🇰 PAKISTAN74♠♣4=+0
-6.3Round 10🇿🇦 SOUTH AFRICA145♥x♣K-2-5
-6.4Round 6🇳🇱 NETHERLANDS135♣♥A-1-12
-6.4Round 10🇿🇦 SOUTH AFRICA54♠x♦7-1-6
-6.5Round 8🇮🇪 IRELAND175♦♥Q+1-11
-7.0Round 3🇹🇼 CHINESE TAIPEI106♦♣3-2-13
-7.4Round 17🇳🇴 NORWAY325♠x♦6-1-7
-7.6Round 20🇧🇷 BRAZIL55♣x♣10-5+7
-8.5Round 16🇮🇩 INDONESIA146♦x♥5-1-14
-9.0Round 14🇨🇳 CHINA SMEG93N♣6-1-10
-9.0Round 20🇧🇷 BRAZIL104♥♠K=-3
-9.2Round 5🇵🇰 PAKISTAN66♠♣7=+11
-9.7Round 17🇳🇴 NORWAY245♣♠5-1-11
-9.7Round 20🇧🇷 BRAZIL14♦x♠A=-9
-11.3Round 13🇺🇸 USA 2294♥x♦K-2-15
-11.6Round 3🇹🇼 CHINESE TAIPEI63N♠5+1-8