DONG Lidang · PD TIMES

252rank
-38.5Butler · 70 bds
-0.55per board
±3.6swing
-0.66vs par /bd
-0.33adjusted /bd
Butler per round: -6.7 -6.7 -6.7 -31.8 -31.8by round

vs par split: bidding -0.36 · play -0.30

Strength of schedule: opponents averaged +0.22/bd (a tough draw) → opponent-adjusted -0.33/bd

Card play — on target: opening leads 81.2% · declarer play 90.0% · defence 80.0%

Card play by contract type — on target
vs NTvs a suit
Opening leads60.0% (5)90.9% (11)
Declarer play100.0% (5)86.7% (15)
Defence80.0% (10)80.0% (25)

Opening leads by suit led: ♠ 0.0% (2) · ♥ 100.0% (4) · ♦ 100.0% (6) · ♣ 75.0% (4)

vs par by strain: NT -0.17 (18) · a suit -0.83 (52)

vs par by level: part-score -0.29 (31) · game -1.74 (34) · slam +4.40 (5)

By role: declaring -0.22/bd (-1.43 vs par · 35) · defending -0.88/bd (+0.11 vs par · 35)

By vulnerability: vulnerable +0.29/bd (-0.14 vs par · 35) · not vulnerable -1.39/bd (-1.17 vs par · 35)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round of 64J.ChenB.Nab – B.DrijverClosed14-17.0-1.21-2.07
Round of 64J.ChenT.Verbeek – D.MolenaarOpen14+2.5+0.18+0.36
Round of 64J.ChenT.Verbeek – D.MolenaarOpen14+7.8+0.56+0.00
Round of 32J.ChenJ.Verhees – R.Van ProoijenClosed14-47.3-3.38-1.93
Round of 32J.ChenR.Van Prooijen – J.VerheesOpen14+15.5+1.11+0.36

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
+8.8Round of 64PDC546♠♣Q-1+13
+8.8Round of 32TULIN375♣x♠Q=+12
+5.0Round of 32TULIN413♠♥5-3-8
+4.7Round of 64PDC315♦♠10=+0
+4.3Round of 64PDC373♠♥Q=+6
+4.2Round of 64PDC324♦♥A=+7
+4.0Round of 32TULIN323NT♠5=+10
+4.0Round of 32TULIN425♦♣K=-1
+3.6Round of 64PDC394♥♠3-2+6
+3.4Round of 64PDC514♠♣3=+3
+2.9Round of 32TULIN291NT♥Q=+5
+2.7Round of 64PDC433♠♣3-1+6
+2.2Round of 64PDC346♠♦6-2+11
+2.1Round of 64PDC52♠♦K-2+0
+2.1Round of 64PDC553♦♥7-1+9
+2.1Round of 32TULIN343♣♦K-1-2
+1.8Round of 32TULIN164♠♦8-1+6
+1.8Round of 32TULIN364♠♣K+1+4
+1.7Round of 64PDC105♥♠9+1-12
+1.5Round of 64PDC485♣♥2+1-13
+1.4Round of 32TULIN301NT♣5+3-6
+1.3Round of 64PDC63♦♠A=+0
+0.8Round of 64PDC533NT♥3=+1
+0.5Round of 32TULIN352♥♠J+1+1
+0.2Round of 64PDC24♥♣A-1-2
+0.2Round of 32TULIN283NT♣K-1+10
+0.1Round of 64PDC144♠♥K+1+0
+0.1Round of 64PDC384♠♣3+1+0
-0.1Round of 64PDC304♠♥J=+0
-0.1Round of 32TULIN381NT♣A+1+1
-0.2Round of 64PDC412♠♦5+1+0
-0.2Round of 64PDC451NT♥Q+1+1
-0.3Round of 64PDC132♠♦K+1+10
-0.3Round of 64PDC444♥♦3=+3
-0.3Round of 64PDC524♠♣9+2-1
-0.4Round of 64PDC93NT♠J+2-1
-0.4Round of 32TULIN392♠♦4-1-1
-0.5Round of 64PDC422♠♦3=+1
-0.5Round of 32TULIN263NT♠J+2+0
-0.6Round of 64PDC471NT♦10+2-1
-0.7Round of 64PDC332♠♥6-1+2
-0.9Round of 64PDC404♠♥J+2-11
-1.0Round of 64PDC462♠♦3-2+1
-1.1Round of 32TULIN173NT♣7+1+1
-1.3Round of 64PDC32♥♠6=+0
-1.3Round of 32TULIN153NT♣10+2+0
-1.4Round of 32TULIN331NT♣3+1-1
-1.5Round of 32TULIN213NT♣2+3+10
-2.2Round of 64PDC12♠♦Q=-6
-2.2Round of 64PDC494♠♥A-1-10
-2.3Round of 64PDC124♠♥7-1-11
-2.4Round of 64PDC503♥♠3=-6
-2.8Round of 64PDC352♠♥7+1-7
-2.8Round of 32TULIN273♦♣J=+0
-2.9Round of 64PDC44♣♠A=+0
-3.2Round of 64PDC113♠♥10-1-5
-3.7Round of 32TULIN243♦x♥10-2-5
-4.0Round of 64PDC86♦♣2=+11
-4.1Round of 32TULIN194♥♦A-1-5
-4.3Round of 32TULIN183NT♠Q+4-2
-4.4Round of 64PDC294♠x♥K=-5
-4.5Round of 64PDC562NT♣J+2-6
-4.5Round of 32TULIN235♦♣8-1-7
-5.0Round of 32TULIN406♠♥Q=+0
-5.8Round of 64PDC73NT♥J-2-13
-6.7Round of 32TULIN204♠♥3=-10
-7.0Round of 64PDC362♣x♣3-2-5
-8.1Round of 32TULIN314♠x♣K-3-9
-8.7Round of 32TULIN256♣♦K=-13
-10.1Round of 32TULIN223NT♠6-3-12