KOWALSKI Apolinary · BORTOLETTI

21rank
+12.9Butler · 40 bds
+0.32per board
±4.4swing
+2.12vs par /bd
+0.67adjusted /bd
Butler per round: 12.9 12.9by round

vs par split: bidding +1.90 · play +0.36

Strength of schedule: opponents averaged +0.35/bd (a tough draw) → opponent-adjusted +0.67/bd

Card play — on target: opening leads 81.8% · declarer play 62.5% · defence 90.9%

Card play by contract type — on target
vs NTvs a suit
Opening leads66.7% (3)87.5% (8)
Declarer play100.0% (1)57.1% (7)
Defence100.0% (5)88.2% (17)

Opening leads by suit led: ♠ 75.0% (4) · ♥ 66.7% (3) · ♦ 100.0% (3) · ♣ 100.0% (1)

vs par by strain: NT +1.00 (10) · a suit +2.69 (29)

vs par by level: part-score +3.70 (10) · game +0.81 (26) · slam +10.00 (3)

By role: declaring -0.02/bd (-1.24 vs par · 17) · defending +0.57/bd (+4.61 vs par · 23)

By vulnerability: vulnerable -0.17/bd (+1.85 vs par · 20) · not vulnerable +0.81/bd (+2.40 vs par · 20)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round of 16J.RomanskiJ.Meckstroth – Z.MahmoodOpen20+6.5+0.33+3.85
Round of 16J.RomanskiG.Helgemo – C.LorenziniClosed20+6.4+0.32+0.40

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
+15.6Round of 16GUPTA386♣♥8-1+17
+9.0Round of 16GUPTA513NT♠6=+7
+6.7Round of 16GUPTA363NT♥4-3+6
+5.9Round of 16GUPTA594♠x♥9=+12
+3.6Round of 16GUPTA502♥♠4=+10
+3.5Round of 16GUPTA492♥♠9=+6
+3.4Round of 16GUPTA352♥♣Q-1+6
+3.3Round of 16GUPTA225♣♠A-2+13
+3.3Round of 16GUPTA554♠♣3+1-13
+2.7Round of 16GUPTA244♠♦8-4+7
+2.5Round of 16GUPTA333NT♠10-2+8
+2.1Round of 16GUPTA585♦x♥A-1+6
+0.9Round of 16GUPTA264♠♦A+1+0
+0.9Round of 16GUPTA405♥♠Q+1+13
+0.7Round of 16GUPTA464NT♦Q+2-10
+0.6Round of 16GUPTA544♥♣J=+0
+0.5Round of 16GUPTA232♥♠6+1+7
+0.5Round of 16GUPTA423NT♦7-1+5
+0.5Round of 16GUPTA485♦x♠6+1+4
+0.4Round of 16GUPTA523NT♣3+2+0
+0.3Round of 16GUPTA576NT♥10=+0
+0.0Round of 16GUPTA444♥♦A-1-6
-0.2Round of 16GUPTA27Pass-3
-0.3Round of 16GUPTA604♥♦Q-1+6
-0.4Round of 16GUPTA291NT♠3=+1
-1.0Round of 16GUPTA434♠♦K=+1
-1.1Round of 16GUPTA284♥♠6+1-11
-1.2Round of 16GUPTA314♥♦2+1-1
-1.2Round of 16GUPTA563NT♥4+4-2
-1.3Round of 16GUPTA253♣♠Q+1+9
-1.9Round of 16GUPTA452♣♣6-2-3
-2.4Round of 16GUPTA414♠♦A=+0
-2.8Round of 16GUPTA372♠♥3+1-1
-3.5Round of 16GUPTA395♦x♦10-2-5
-4.0Round of 16GUPTA306♣♠9+1+13
-4.1Round of 16GUPTA344♥♠A-1-4
-5.0Round of 16GUPTA322♥♥5-3-2
-6.4Round of 16GUPTA212♣x♥A-2+4
-6.9Round of 16GUPTA533NT♥5-3-5
-10.3Round of 16GUPTA474♥♥8=-10