TUSZYNSKI Piotr · ROSSARSKI

34rank
+116.1Butler · 140 bds
+0.83per board
±4.1swing
+1.48vs par /bd · #11/672
+0.59adjusted /bd
Butler per round: -15 21.4 3 11.6 6.5 -1.8 17.9 -7.9 2.8 20.3 12.3 6.5 15.9 22.6by round

vs par split: bidding +0.55 · play +0.87

Strength of schedule: opponents averaged -0.24/bd (an easy draw) → opponent-adjusted +0.59/bd

Card play — on target: opening leads 94.1% #39 of 671 · declarer play 95.2% #19 of 671 · defence 91.1% #99 of 672

Card play by contract type — on target
vs NTvs a suit
Opening leads·94.1% (17)
Declarer play·95.2% (21)
Defence·91.1% (45)

Opening leads by suit led: ♠ 100.0% (3) · ♥ 100.0% (4) · ♦ 100.0% (5) · ♣ 80.0% (5)

vs par by strain: a suit +1.41 (97)

vs par by level: part-score +1.49 (43) · game +0.98 (49) · slam +5.00 (5)

By role: declaring +1.48/bd (+0.07 vs par · 67) · defending +0.24/bd (+2.77 vs par · 73)

By vulnerability: vulnerable +1.39/bd (+1.62 vs par · 76) · not vulnerable +0.17/bd (+1.31 vs par · 64)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1A.KowalskiL.Sebbane – J.RombautOpen10-15.0-1.50+0.00
Round 2A.KowalskiZ.Chen – W.TuOpen10+21.4+2.14+5.80
Round 3A.KowalskiL.Chen – Y.GuOpen10+3.0+0.30+1.80
Round 4A.KowalskiJ.Pochron – W.StobieckiOpen10+11.6+1.16+1.00
Round 6A.KowalskiX.Lin – W.ZhuOpen10+6.5+0.65-0.30
Round 7A.KowalskiD.Wu – H.YuOpen10-1.8-0.18+0.80
Round 8A.KowalskiZ.Gu – J.DaiOpen10+17.9+1.79+2.10
Round 9A.KowalskiO.Eskes – R.Van ProoijenOpen10-7.9-0.79-0.20
Round 10A.KowalskiS.Mukherjee – B.DasOpen10+2.8+0.28+1.40
Round 11A.KowalskiH.Jiang – X.ZhouOpen10+20.3+2.03+2.30
Round 12A.KowalskiP.Silabhusiddhi – P.NimityongskulOpen10+12.3+1.23+0.40
Round 13A.KowalskiZ.Nagy – D.LilleyOpen10+6.5+0.65+3.50
Round 14A.KowalskiN.Sver – M.PilipovicOpen10+15.9+1.59-1.10
Round 15A.KowalskiC.Feitelson – E.HavasOpen10+22.6+2.26+3.20

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
+9.8Round 10TEXAN ACES104♠♣5=+11
+9.0Round 8PUDONGPUFA CLUB114♠x♥3-2+12
+8.9Round 8PUDONGPUFA CLUB173N♥9-1+12
+8.2Round 2XIAMEN124♥x♣2-2+10
+7.8Round 9AUKEN273N♦3=+6
+7.7Round 10TEXAN ACES22♥♦A+1+11
+7.7Round 13HOFFMAN86♠♦J-2+17
+7.7Round 14SVER146♠♥6=-10
+7.2Round 4POLISH SENIORS45♦♥J=-1
+6.6Round 12TSEP284♠♦K=+5
+6.5Round 1GROSS74♥♠J-1+13
+6.5Round 3SHANGHAI YOUTH 4305♣♦J-1+12
+6.5Round 12TSEP225♣♥A=+6
+5.9Round 15SOLOMON214♠♦4=+7
+5.6Round 13HOFFMAN22♥♠7+2+10
+5.6Round 15SOLOMON256♠♥3-2+17
+5.1Round 3SHANGHAI YOUTH 4273♠♥A+1+7
+5.1Round 9AUKEN291♠♦7+1+6
+5.1Round 11SHANGHAI JIAHENG165♠♥2+1+1
+4.8Round 15SOLOMON304♥♠10=-2
+4.7Round 6TAICANG BA214♥♣A+1+0
+4.7Round 7LIAONING55♠x♦Q-1+7
+4.5Round 13HOFFMAN66♣♠4-1+14
+4.3Round 15SOLOMON273N♣6-2+6
+4.2Round 3SHANGHAI YOUTH 4265♣♦A+1+8
+4.2Round 14SVER192N♥3-1-2
+3.8Round 2XIAMEN132♠♣5+1+0
+3.8Round 11SHANGHAI JIAHENG132♥♠5-1+5
+3.7Round 14SVER204♠♦6+1+1
+3.6Round 10TEXAN ACES12♠♦A-3+6
+3.6Round 13HOFFMAN44♠♣3=-1
+3.5Round 11SHANGHAI JIAHENG143N♠4+2-14
+3.4Round 6TAICANG BA253♦♥A-3+0
+3.4Round 11SHANGHAI JIAHENG113N♠J+1+0
+3.3Round 1GROSS83N♣2-1+4
+3.1Round 6TAICANG BA241N♠K+2+1
+3.1Round 9AUKEN264♠♦7-1+6
+3.1Round 12TSEP274♥♦Q+1-5
+2.8Round 2XIAMEN113N♥4-1+5
+2.8Round 8PUDONGPUFA CLUB153♥♣6+1+1
+2.8Round 11SHANGHAI JIAHENG122♥♦A-2+11
+2.6Round 8PUDONGPUFA CLUB204♠♣7=+0
+2.4Round 14SVER164♠♣6=+0
+2.3Round 3SHANGHAI YOUTH 4234♠♦J+1+0
+2.3Round 4POLISH SENIORS102N♠6=+0
+2.3Round 10TEXAN ACES83♠♦A=+6
+2.2Round 3SHANGHAI YOUTH 4242♣♦2-1+3
+2.2Round 4POLISH SENIORS64♣♠Q-2+11
+2.2Round 13HOFFMAN14♠♦3+1+1
+2.2Round 14SVER121N♠4-1+5
+2.1Round 2XIAMEN161N♣10+1+0
+2.1Round 4POLISH SENIORS92♣♣3=-1
+2.1Round 14SVER182♥♦A+2+6
+2.0Round 11SHANGHAI JIAHENG183♠♥4-1+0
+1.9Round 2XIAMEN143N♣2+4+17
+1.9Round 7LIAONING74♠♥4-1+6
+1.8Round 7LIAONING94♥♠8+3-10
+1.6Round 2XIAMEN183♠♠10-1+4
+1.6Round 9AUKEN222♠♦3+3+6
+1.6Round 14SVER113♠♣Q-2+5
+1.5Round 2XIAMEN193♦♥6+2+1
+1.4Round 2XIAMEN173♣♠J+2+8
+1.4Round 6TAICANG BA292♦♦8=+1
+1.4Round 14SVER172N♠6+1+1
+1.3Round 11SHANGHAI JIAHENG173N♠J-1+4
+1.3Round 12TSEP304♥♦A-1+5
+1.2Round 11SHANGHAI JIAHENG194♠♥K+1+1
+1.2Round 12TSEP253N♣4=-5
+1.2Round 15SOLOMON231N♥6-1+5
+1.1Round 8PUDONGPUFA CLUB163♠♥A=+0
+1.0Round 4POLISH SENIORS51N♠5-1-1
+1.0Round 13HOFFMAN94♠♠4+2+1
+1.0Round 15SOLOMON261N♠7-1-1
+1.0Round 15SOLOMON294♠♣A=+0
+0.7Round 9AUKEN231N♥4=+1
+0.6Round 10TEXAN ACES71N♦7+1-9
+0.6Round 15SOLOMON242N♠7-1-4
+0.5Round 9AUKEN304♥♦10-2-1
+0.5Round 10TEXAN ACES64♠♣A=+0
+0.4Round 6TAICANG BA232♥♦5+1+0
+0.4Round 6TAICANG BA301N♣6-1+5
+0.3Round 3SHANGHAI YOUTH 4212N♣10=+1
+0.3Round 4POLISH SENIORS71N♦Q=+2
+0.3Round 4POLISH SENIORS84♦♣Q-2-1
+0.3Round 7LIAONING102♥♣Q=+1
+0.3Round 10TEXAN ACES54♠♥4+2+11
+0.2Round 1GROSS43♠♦Q-1+1
+0.2Round 7LIAONING43N♥6+1+1
+0.2Round 15SOLOMON224♠♦6+1+5
+0.1Round 4POLISH SENIORS23N♠4+1+0
+0.1Round 11SHANGHAI JIAHENG203N♠5+3+13
+0.0Round 3SHANGHAI YOUTH 4251N♠8=+0
+0.0Round 6TAICANG BA283N♥7+2+0
+0.0Round 7LIAONING31N♣A-2+9
-0.0Round 12TSEP214♦♠3=-1
-0.1Round 7LIAONING14♥♦4=-1
-0.2Round 2XIAMEN203N♠4+3+13
-0.2Round 6TAICANG BA274♥♦K-1-5
-0.5Round 12TSEP235♦♠A-1-6
-0.7Round 3SHANGHAI YOUTH 4223N♦8+1+5
-0.8Round 13HOFFMAN33N♥J+2+0
-0.9Round 7LIAONING64♥♥6+1+0
-0.9Round 8PUDONGPUFA CLUB134♠♠5+2-7
-0.9Round 9AUKEN244♥♦4=+5
-0.9Round 13HOFFMAN53N♣2+2+12
-1.0Round 7LIAONING22♠♣2-1+1
-1.0Round 12TSEP244♠♣7-1+5
-1.1Round 8PUDONGPUFA CLUB142♥♣8=+0
-1.2Round 1GROSS103N♠Q=+3
-1.4Round 1GROSS93N♥9+2+0
-1.4Round 8PUDONGPUFA CLUB193♦♥K-1+2
-1.5Round 4POLISH SENIORS33N♥5+1+1
-1.5Round 8PUDONGPUFA CLUB182♠♦6=+0
-1.6Round 8PUDONGPUFA CLUB122♣♦4+1+1
-1.7Round 2XIAMEN155♥♦K=+0
-2.0Round 6TAICANG BA264♠♥6+1-5
-2.0Round 15SOLOMON281N♣6-1-1
-2.2Round 14SVER135♥x♠A-3-8
-2.3Round 1GROSS34♠x♣A-3+4
-2.4Round 4POLISH SENIORS13♣♥K=+0
-2.4Round 12TSEP262♠♣A=+1
-2.5Round 12TSEP292♥♠A+1-1
-2.9Round 11SHANGHAI JIAHENG154♠♣A-1+2
-3.0Round 1GROSS62N♠4-1-4
-3.1Round 1GROSS52♠♠2+1+0
-4.7Round 6TAICANG BA222♦♥Q=+0
-4.8Round 13HOFFMAN103N♥K-1-6
-5.0Round 9AUKEN212♠♣8+1-7
-5.2Round 10TEXAN ACES94♥♠4=-8
-5.5Round 1GROSS14♥♠4-1-11
-6.0Round 10TEXAN ACES42♥♦A-2-3
-6.3Round 3SHANGHAI YOUTH 4283N♠4+1-5
-7.2Round 14SVER155♦x♠3-2-9
-8.5Round 1GROSS23♠♣Q=-10
-8.7Round 7LIAONING85♦x♥Q=-6
-9.0Round 9AUKEN253N♦5=-10
-10.6Round 3SHANGHAI YOUTH 4296♦♥Q-1-13
-10.8Round 10TEXAN ACES34♥♥6+2-11
-11.6Round 13HOFFMAN72♦♦2+1-13
-11.8Round 9AUKEN283♠♦A=-14