JASSEM Krzysztof · MAZURKIEWICZ

75rank
+74.8Butler · 150 bds
+0.50per board
±3.9swing
+0.49vs par /bd · #109/535
+0.79adjusted /bd
Butler per round: 29.5 1.6 7.9 3 1.8 14.5 19.7 5.1 3.6 -16.8 -13.9 10.1 12.4 -2.1 -1.6by round

vs par split: bidding +0.54 · play +0.03

Strength of schedule: opponents averaged +0.29/bd (a tough draw) → opponent-adjusted +0.79/bd

Card play — on target: opening leads 83.3% #112 of 534 · declarer play 80.6% #78 of 534 · defence 83.6% #340 of 535

Card play by contract type — on target
vs NTvs a suit
Opening leads69.2% (13)91.3% (23)
Declarer play66.7% (6)83.3% (30)
Defence81.8% (22)84.3% (51)

Opening leads by suit led: ♠ 84.6% (13) · ♥ 80.0% (10) · ♦ 87.5% (8) · ♣ 80.0% (5)

vs par by strain: NT -0.27 (44) · a suit +0.93 (105)

vs par by level: part-score -0.32 (65) · game +1.12 (76) · slam +2.75 (8)

By role: declaring +1.05/bd (-0.57 vs par · 76) · defending -0.07/bd (+1.58 vs par · 74)

By vulnerability: vulnerable +0.53/bd (+0.53 vs par · 77) · not vulnerable +0.47/bd (+0.45 vs par · 73)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1M.MazurkiewiczS.Mackay – J.HarsanyiOpen10+29.5+2.95+2.90
Round 2M.MazurkiewiczB.Igla – F.PiedraOpen10+1.6+0.16-2.80
Round 3M.MazurkiewiczM.Rehder – H.HaeuslerClosed10+7.9+0.79+1.40
Round 4M.MazurkiewiczW.Strzemecki – P.ZawadaClosed10+3.0+0.30+1.20
Round 5M.MazurkiewiczD.Fischer – B.SaurerOpen10+1.8+0.18+0.30
Round 6M.MazurkiewiczA.Palma – L.CimaOpen10+14.5+1.45+3.10
Round 7M.MazurkiewiczM.Orey Capucho – B.CabanesClosed10+19.7+1.97+2.30
Round 8M.MazurkiewiczY.Liu – J.LiuOpen10+5.1+0.51+0.70
Round 9M.MazurkiewiczF.Gitelman – S.WinestockOpen10+3.6+0.36+0.30
Round 10M.MazurkiewiczZ.Shi – C.JuClosed10-16.8-1.68-3.70
Round 11M.MazurkiewiczZ.Engel – O.NeveOpen10-13.9-1.39+0.30
Round 12M.MazurkiewiczY.Chen – J.ZhaoOpen10+10.1+1.01+1.00
Round 13M.MazurkiewiczM.Liu – S.WangOpen10+12.4+1.24-0.90
Round 14M.MazurkiewiczA.Versace – L.LauriaClosed10-2.1-0.21+0.30
Round 15M.MazurkiewiczP.Fredin – J.McallisterOpen10-1.6-0.16+1.00

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
+13.0Round 6TEAM VENTIN226♠♦2-1+17
+11.0Round 9THE MAGICDOGS263NT♣2+1+11
+10.6Round 7RIEHM74♠x♦A-3+5
+10.4Round 1MARVELOUS105♥♠A=+13
+10.4Round 11BRULIBU174♠x♣A=+12
+9.9Round 3GERMANY OPEN294♠♦8-1+13
+9.2Round 1MARVELOUS74NT♠Q-4+11
+8.4Round 7RIEHM34♠x♥9-2+12
+8.1Round 5KASIMIR134♠♥K=+10
+7.4Round 15MCALLISTER225♣x♠A-2+8
+6.5Round 8ZHIYIJIA175♣♦K=+0
+6.4Round 2PIEDRA164♠♥A-1+2
+6.2Round 1MARVELOUS45♠x♦A-1+7
+6.2Round 6TEAM VENTIN294♥♣K-2+8
+6.0Round 1MARVELOUS24♦♣A-1+12
+5.3Round 3GERMANY OPEN223♠♠10-2+7
+5.3Round 13YBM12♠♣A=+0
+5.3Round 13YBM101NT♠4-3+4
+4.5Round 2PIEDRA184♠♥4+2-9
+4.5Round 14ZIMMERMANN203NT♥Q+2+1
+4.2Round 7RIEHM84♠x♦K-2+5
+3.7Round 5KASIMIR143NT♠K-3+6
+3.6Round 4POLAND44♥♦A=-1
+3.6Round 14ZIMMERMANN152NT♠6-1+4
+3.5Round 12CHINA OPEN302♠♠2+2+6
+3.5Round 13YBM63♥♣K-1+0
+3.3Round 9THE MAGICDOGS302♥♦J-1+4
+3.2Round 10JINSHUO22♠♣4-1+2
+3.2Round 13YBM53NT♥5=+3
+3.0Round 1MARVELOUS11NT♥2+1+1
+3.0Round 4POLAND12♥♣A+1+1
+3.0Round 6TEAM VENTIN234♥♣3+1+1
+2.9Round 1MARVELOUS63NT♦9+1-1
+2.9Round 8ZHIYIJIA193NT♠5-1+6
+2.8Round 8ZHIYIJIA184♥♣A+1+0
+2.8Round 15MCALLISTER262♠x♠10-1+9
+2.7Round 6TEAM VENTIN244♠♦3+1+1
+2.5Round 1MARVELOUS83NT♥8+1+1
+2.4Round 12CHINA OPEN272♣♣A=+6
+2.3Round 4POLAND34♠♠J-1+5
+2.2Round 4POLAND93NT♣6+3+1
+2.2Round 12CHINA OPEN212♣♠7+1+7
+2.0Round 2PIEDRA136♦♣3=+0
+2.0Round 6TEAM VENTIN303♣♦A-2+0
+1.9Round 7RIEHM43♣♠5=+10
+1.7Round 2PIEDRA193NT♣J+1-1
+1.6Round 12CHINA OPEN224♠♣A+1+0
+1.5Round 3GERMANY OPEN273NT♣10=+0
+1.5Round 7RIEHM102♥♠2-1-1
+1.4Round 15MCALLISTER254♥♦K=-1
+1.3Round 13YBM45♥♦2=+0
+1.2Round 3GERMANY OPEN286♠x♦2-2+0
+1.2Round 7RIEHM53NT♦3-1-2
+1.1Round 7RIEHM23♣♠J=+0
+1.0Round 8ZHIYIJIA203NT♠2+3-13
+0.9Round 12CHINA OPEN233NT♥7+2+0
+0.8Round 10JINSHUO65♣♥3+1+3
+0.8Round 13YBM25♦♠Q+1-10
+0.8Round 14ZIMMERMANN132♥♦7+1+0
+0.8Round 15MCALLISTER274♥♠8=-1
+0.7Round 5KASIMIR123♠♣J=+0
+0.7Round 10JINSHUO31NT♦J=-11
+0.7Round 15MCALLISTER214♠♥2+2+1
+0.6Round 5KASIMIR193♥♠A-1+2
+0.5Round 5KASIMIR152♥♣A+2-4
+0.5Round 8ZHIYIJIA144♠♣4-1+2
+0.5Round 9THE MAGICDOGS273♠♦5+1+1
+0.4Round 4POLAND103♥♥2-1+1
+0.4Round 6TEAM VENTIN274♠♦Q+1+0
+0.4Round 12CHINA OPEN241NT♦5+1-7
+0.4Round 13YBM94♦♥A-1+5
+0.3Round 5KASIMIR203♠♦K-1+11
+0.3Round 6TEAM VENTIN253NT♦8-2+8
+0.3Round 12CHINA OPEN252♠♦J=-1
+0.2Round 2PIEDRA123NT♠4+1-1
+0.2Round 5KASIMIR114♥♦2=+0
+0.1Round 3GERMANY OPEN244♠♠9=+1
-0.0Round 8ZHIYIJIA132♣♠A+1+0
+0.0Round 11BRULIBU181♣♦6+1+1
+0.0Round 13YBM84♠♦9-2+0
-0.2Round 12CHINA OPEN263NT♥Q+1+0
-0.2Round 14ZIMMERMANN123♦♠J-1+1
-0.2Round 14ZIMMERMANN173♣♣Q+2-7
-0.2Round 14ZIMMERMANN194♥♠5+2+13
-0.3Round 1MARVELOUS33NT♥2=-1
-0.4Round 8ZHIYIJIA156♦♥5=+12
-0.4Round 9THE MAGICDOGS253NT♠6+2+13
-0.4Round 9THE MAGICDOGS284♥♥4=+0
-0.5Round 12CHINA OPEN283♠♦A+1-1
-0.5Round 12CHINA OPEN294♥♦2+1+0
-0.6Round 2PIEDRA143♣♦9-1-2
-0.6Round 3GERMANY OPEN263NT♥2+2-1
-0.6Round 4POLAND74♥♣6+2+13
-0.6Round 8ZHIYIJIA164♣♦2+1+10
-0.6Round 9THE MAGICDOGS213♦♠7+1-10
-0.7Round 4POLAND83NT♠10=+2
-0.7Round 15MCALLISTER241NT♠2-2-1
-0.8Round 4POLAND21NT♦6-2+1
-0.9Round 3GERMANY OPEN304♠♣2+1+0
-0.9Round 5KASIMIR164♠♣7-1-5
-1.0Round 13YBM36NT♦6=-11
-1.1Round 10JINSHUO101♠♦Q+1+1
-1.1Round 11BRULIBU112♠♥10=+0
-1.2Round 1MARVELOUS53NT♥9+1-1
-1.2Round 7RIEHM62♦♥4+2+0
-1.2Round 9THE MAGICDOGS232♦♥Q+2-1
-1.3Round 11BRULIBU151NT♥Q+2-2
-1.4Round 10JINSHUO53♠♦K-1-5
-1.5Round 14ZIMMERMANN162♠♥5-2+0
-1.6Round 3GERMANY OPEN254♣♦A+1-7
-1.7Round 10JINSHUO72♥♦Q=-5
-1.7Round 15MCALLISTER301NT♣Q=-2
-1.8Round 9THE MAGICDOGS242♠♣A=-5
-1.9Round 2PIEDRA114♥♦K-1+2
-2.0Round 2PIEDRA171NT♥8-2+0
-2.0Round 11BRULIBU133NT♠5+1-1
-2.1Round 5KASIMIR182NT♣2-1-5
-2.1Round 10JINSHUO81NT♦Q-1-9
-2.4Round 14ZIMMERMANN113♠♠8-1-4
-2.6Round 4POLAND64♠♥5-2-5
-2.7Round 8ZHIYIJIA123♦♣2=+0
-2.7Round 14ZIMMERMANN143♣♥Q=-5
-2.8Round 11BRULIBU124♥♣Q+2-1
-2.9Round 15MCALLISTER231NT♠2-2-3
-3.0Round 9THE MAGICDOGS294♦♦10-1-6
-3.1Round 11BRULIBU166♣x♥A-3-9
-3.2Round 3GERMANY OPEN231♥x♠A-3+11
-3.2Round 11BRULIBU193NT♦2+1+0
-3.8Round 3GERMANY OPEN213♠♦J=-10
-3.8Round 4POLAND51NT♠Q=-6
-3.8Round 7RIEHM97♣♦6=+2
-3.8Round 9THE MAGICDOGS224♠x♥A-4-4
-3.8Round 11BRULIBU146♠♥2=+11
-3.8Round 14ZIMMERMANN181NT♥3-1+0
-3.9Round 6TEAM VENTIN283♦♦2-1-5
-4.0Round 2PIEDRA202♠♥2+1-7
-4.1Round 10JINSHUO13NT♥4=+1
-4.2Round 7RIEHM14♥♠Q=-8
-4.3Round 15MCALLISTER283NT♥2=+0
-4.4Round 6TEAM VENTIN265♣♠K+1+13
-4.4Round 10JINSHUO42♥♣9+2-7
-4.7Round 2PIEDRA155♠x♣A-3-12
-4.8Round 6TEAM VENTIN21Adj.♦A-12
-4.9Round 8ZHIYIJIA114♠♦K-1-10
-5.1Round 15MCALLISTER293NT♥7+1+0
-6.4Round 13YBM74♥♣2=+0
-6.7Round 10JINSHUO93NT♠Q=-7
-7.0Round 11BRULIBU205♦x♠A-1-8
-9.2Round 1MARVELOUS94♥♥2=-13
-9.3Round 5KASIMIR174♥♥9=-12