KOWALSKI Dariusz · ALTERIS NUCLEAR

51rank
+48.7Butler · 112 bds
+0.43per board
±4.0swing
-0.55vs par /bd
+0.48adjusted /bd
Butler per round: 29.2 29.2 29.4 29.4 29.4 -9.9 -9.9 -9.9by round

vs par split: bidding -0.37 · play -0.19

Strength of schedule: opponents averaged +0.05/bd (an average draw) → opponent-adjusted +0.48/bd

Card play — on target: opening leads 81.0% · declarer play 84.0% · defence 81.6%

Bidding activity — not a pass: 48.4% (148/306)

Card play by contract type — on target
vs NTvs a suit
Opening leads71.4% (7)85.7% (14)
Declarer play83.3% (6)84.2% (19)
Defence83.3% (12)81.1% (37)

Opening leads by suit led: ♠ 85.7% (7) · ♥ 66.7% (3) · ♦ 80.0% (5) · ♣ 83.3% (6)

vs par by strain: NT +0.69 (26) · a suit -0.93 (86)

vs par by level: part-score -0.45 (42) · game -0.02 (63) · slam -6.00 (7)

By role: declaring +0.77/bd (-2.11 vs par · 63) · defending +0.00/bd (+1.45 vs par · 49)

By vulnerability: vulnerable +0.11/bd (-0.82 vs par · 56) · not vulnerable +0.76/bd (-0.29 vs par · 56)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round of 64P.JaniszewskiW.Ho – G.HoClosed14+22.0+1.57-0.07
Round of 64P.JaniszewskiW.Lai – K.MakClosed14+7.2+0.51+0.50
Round of 32P.JaniszewskiB.Norton – S.TommasiniClosed14-0.5-0.04-4.00
Round of 32P.JaniszewskiB.Norton – S.TommasiniClosed14-2.3-0.16-0.50
Round of 32P.JaniszewskiB.Norton – S.TommasiniClosed14+32.2+2.30+1.64
Round of 16P.JaniszewskiB.Brogeland – C.BakkeOpen14-1.9-0.14-0.86
Round of 16P.JaniszewskiC.Bakke – B.BrogelandClosed14-4.5-0.32-0.57
Round of 16P.JaniszewskiC.Willenken – M.SchaltzOpen14-3.5-0.25-0.57

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
+12.3Round of 32KNOTTENBELT164♠x♦Q=+9
+12.1Round of 16ROSENTHAL384♠♣K+3+17
+9.9Round of 32KNOTTENBELT564♠♦Q=+0
+8.0Round of 16ROSENTHAL474♥♦Q+1+1
+7.4Round of 32KNOTTENBELT463♦x♣A-2+9
+7.0Round of 64HOBRA203♠♣7-1+1
+6.6Round of 64HOBRA424♥♦A-2+9
+6.1Round of 64HOBRA312NTx♠7-2+5
+6.1Round of 16ROSENTHAL284♥♦J-2+7
+5.6Round of 16ROSENTHAL202♠♥T=+0
+4.9Round of 16ROSENTHAL392♠♦Q=+0
+4.5Round of 32KNOTTENBELT556♠♥A=+0
+4.3Round of 32KNOTTENBELT235♣♣8+1-13
+4.3Round of 32KNOTTENBELT493NT♦9-1+10
+4.2Round of 32KNOTTENBELT206♠♦Q+1-13
+4.2Round of 32KNOTTENBELT543♥♦Q+1+1
+4.0Round of 64HOBRA175♠♣A-1+4
+3.8Round of 64HOBRA283NT♦Q=-1
+3.8Round of 64HOBRA295♦x♥A-2+5
+3.7Round of 64HOBRA392♥♠K=+5
+3.5Round of 16ROSENTHAL443♥♣Q=+6
+3.4Round of 32KNOTTENBELT453NT♠J-1+10
+3.3Round of 16ROSENTHAL263NT♠Q+1+11
+3.1Round of 32KNOTTENBELT323NT♠2-1+6
+3.1Round of 16ROSENTHAL214♣♥J=+0
+3.0Round of 64HOBRA414♠♣3-1+6
+2.6Round of 64HOBRA184♠♣4=+0
+2.5Round of 64HOBRA195♦♦Q=+0
+2.5Round of 64HOBRA383NT♦Q+2+1
+2.5Round of 32KNOTTENBELT532♥♦Q+1+6
+2.3Round of 16ROSENTHAL223NT♥7=+7
+2.2Round of 16ROSENTHAL534♠♠2+3+12
+2.0Round of 64HOBRA244♠♣A+1+0
+2.0Round of 16ROSENTHAL185♦♠7=+11
+2.0Round of 16ROSENTHAL244♠♦7+1+0
+2.0Round of 16ROSENTHAL556♣♣7+1+1
+1.9Round of 64HOBRA304♠♦Q=+0
+1.9Round of 32KNOTTENBELT293♥♣Q=+1
+1.8Round of 32KNOTTENBELT253♥♦Q+1+1
+1.7Round of 16ROSENTHAL334♥♠A=+0
+1.7Round of 16ROSENTHAL524♥♦9+1+0
+1.6Round of 32KNOTTENBELT481NT♦Q=-1
+1.5Round of 64HOBRA254♥♠6-1-2
+1.4Round of 64HOBRA152♠♦A-1+6
+1.3Round of 32KNOTTENBELT193♠♥J-1-1
+1.2Round of 32KNOTTENBELT243♦♣J-2+0
+1.2Round of 16ROSENTHAL453♣♦Q+1+1
+1.1Round of 32KNOTTENBELT413NT♦7=-1
+1.1Round of 16ROSENTHAL312♥♣Q+1-1
+1.0Round of 32KNOTTENBELT173NT♣T+2+0
+0.9Round of 64HOBRA163NT♣K+1+1
+0.8Round of 32KNOTTENBELT352♥♠4=+6
+0.6Round of 16ROSENTHAL292♥♦Q+1+0
+0.5Round of 64HOBRA264♠♥3+1+0
+0.5Round of 32KNOTTENBELT374♦♠K+1-7
+0.3Round of 32KNOTTENBELT314♥♠2+1+0
+0.3Round of 32KNOTTENBELT424♥♦6+1+0
+0.3Round of 16ROSENTHAL362NT♦Q-1+2
+0.3Round of 16ROSENTHAL424♠♦Q+1+0
+0.3Round of 16ROSENTHAL516♠♥7=+0
+0.2Round of 64HOBRA343NT♣T+1+0
+0.2Round of 32KNOTTENBELT475♥x♣6-1+0
+0.1Round of 64HOBRA224♠♥T=+3
+0.1Round of 32KNOTTENBELT394♠♣Q+1+0
+0.1Round of 32KNOTTENBELT502♠♠7+1-7
-0.2Round of 16ROSENTHAL172NT♦Q-1+2
-0.2Round of 16ROSENTHAL483♣♥7+2-1
-0.3Round of 32KNOTTENBELT332♥♦6=+0
-0.3Round of 16ROSENTHAL233♥♦Q-1+1
-0.3Round of 16ROSENTHAL432♠♦Q-1-5
-0.4Round of 16ROSENTHAL462NT♦Q-2-2
-0.5Round of 32KNOTTENBELT444♠♣K+1+0
-0.5Round of 32KNOTTENBELT522♠♦7+1+0
-0.7Round of 64HOBRA274♠♥A+1-1
-0.7Round of 64HOBRA335♥♠A-1-6
-0.8Round of 64HOBRA363NT♥2+1+0
-0.8Round of 64HOBRA372♥♦8+2-8
-0.8Round of 16ROSENTHAL304♠♥A-1-5
-0.8Round of 16ROSENTHAL413NT♦8+2-1
-1.0Round of 32KNOTTENBELT403♠♦Q+1-12
-1.4Round of 32KNOTTENBELT344♥♠A=+0
-1.4Round of 32KNOTTENBELT512♣♦6+1+1
-1.4Round of 16ROSENTHAL322♣♦7+1+0
-1.7Round of 64HOBRA212♠♥2+1-1
-1.8Round of 32KNOTTENBELT285♣♦Q-1-6
-1.9Round of 64HOBRA232♠♠9=-11
-2.0Round of 16ROSENTHAL373♠♣Q-1-2
-2.1Round of 32KNOTTENBELT384♥♣J=+0
-2.2Round of 32KNOTTENBELT365♥x♠A-1+5
-2.3Round of 32KNOTTENBELT181NT♠J-1-6
-2.4Round of 16ROSENTHAL545♥♦Q-1-7
-2.5Round of 64HOBRA403NT♥Q+1-14
-2.9Round of 16ROSENTHAL404♥♦Q+3-10
-3.0Round of 32KNOTTENBELT262♠♥4=-1
-3.4Round of 32KNOTTENBELT301♠♥J+1-5
-3.5Round of 32KNOTTENBELT434♠x♦8+1-6
-3.7Round of 16ROSENTHAL343NT♣3+2-1
-3.8Round of 32KNOTTENBELT223NT♦3=-3
-3.8Round of 16ROSENTHAL491NT♠7-3+3
-3.9Round of 32KNOTTENBELT274♠♦Q-1-4
-4.0Round of 16ROSENTHAL256♥♠A=-12
-4.1Round of 16ROSENTHAL196♦♥7-1-11
-4.4Round of 16ROSENTHAL165♥x♦Q-1-11
-5.4Round of 32KNOTTENBELT214♠♦A=-7
-6.4Round of 32KNOTTENBELT155♦♦Q-1-12
-6.5Round of 16ROSENTHAL273♣x♦K-2-5
-6.8Round of 16ROSENTHAL153NT♦Q-1-12
-7.6Round of 16ROSENTHAL503NT♦Q-1-10
-7.7Round of 64HOBRA323NT♥J+2+12
-7.7Round of 16ROSENTHAL564♠♦7=-7
-8.1Round of 64HOBRA355♣x♣J-1-8
-13.9Round of 16ROSENTHAL356♦♠6=-7