VAN DEN BOS Berend · MAHAFFEY

22rank
+65.4Butler · 98 bds
+0.67per board
±4.1swing
+1.02vs par /bd
+0.34adjusted /bd
Butler per round: 36.4 36.4 36.4 36.4 29 29 29by round

vs par split: bidding +1.06 · play -0.04

Strength of schedule: opponents averaged -0.33/bd (an easy draw) → opponent-adjusted +0.34/bd

Card play — on target: opening leads 95.5% · declarer play 85.0% · defence 84.3%

Card play by contract type — on target
vs NTvs a suit
Opening leads75.0% (4)100.0% (18)
Declarer play66.7% (3)88.2% (17)
Defence83.3% (12)84.6% (39)

Opening leads by suit led: ♠ 100.0% (6) · ♥ 100.0% (5) · ♦ 87.5% (8) · ♣ 100.0% (3)

vs par by strain: NT +0.43 (23) · a suit +1.20 (75)

vs par by level: part-score -0.76 (45) · game +3.31 (49) · slam -7.00 (4)

By role: declaring +0.46/bd (-0.62 vs par · 47) · defending +0.86/bd (+2.53 vs par · 51)

By vulnerability: vulnerable +1.09/bd (+2.49 vs par · 49) · not vulnerable +0.25/bd (-0.45 vs par · 49)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round of 64J.Van LankveldF.Nystrom – J.UpmarkOpen14+6.7+0.48+2.29
Round of 64J.Van LankveldF.Nystrom – J.UpmarkClosed14+5.9+0.42-0.71
Round of 64J.Van LankveldF.Nystrom – J.UpmarkClosed14+9.2+0.66+0.86
Round of 64J.Van LankveldF.Nystrom – J.UpmarkClosed14+14.6+1.04+1.71
Round of 32J.Van LankveldS.Weinstein – R.LevinClosed14+16.2+1.16+3.29
Round of 32J.Van LankveldE.Rodwell – J.MeckstrothOpen14+15.3+1.09+0.50
Round of 32J.Van LankveldS.Weinstein – R.LevinOpen14-2.5-0.18-0.79

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
+12.9Round of 64GUPTA346♣♣3=+10
+10.1Round of 64GUPTA214♥x♦10=+7
+9.7Round of 64GUPTA514♠♥A-1+12
+9.1Round of 64GUPTA175♠x♦Q-3+9
+9.1Round of 64GUPTA433NT♠K=+7
+8.1Round of 64GUPTA201♠x♥K-2+8
+7.9Round of 32NICKELL324♥x♠9-3+12
+7.8Round of 32NICKELL403NT♥10+3+13
+7.4Round of 32NICKELL185♣♠6-1+11
+6.7Round of 32NICKELL192♣♦J-4+6
+5.8Round of 64GUPTA75♣♠10-2+13
+5.8Round of 32NICKELL204♠♦Q-1+6
+5.7Round of 64GUPTA25♣x♦K-1+7
+5.4Round of 32NICKELL255♦x♠A-2+5
+4.4Round of 64GUPTA294♠x♥K=+5
+4.3Round of 32NICKELL444♠x♦2-1+6
+4.0Round of 32NICKELL425♦♣K=-1
+3.5Round of 32NICKELL314♠♣A-3+3
+3.2Round of 64GUPTA113♣♠7-1+5
+3.2Round of 64GUPTA273♣♥2-4-3
+3.0Round of 64GUPTA332♣♠5+2+1
+3.0Round of 64GUPTA545♠♣Q=+0
+2.9Round of 64GUPTA44♣♦7=+0
+2.7Round of 64GUPTA63♦♠K-1+4
+2.6Round of 64GUPTA323♥♦5=+0
+2.2Round of 64GUPTA13♦♠7=+6
+2.1Round of 32NICKELL234♠x♦K-1+0
+2.0Round of 64GUPTA552♥♦K+3-6
+2.0Round of 32NICKELL504♥♦2+1+1
+1.8Round of 32NICKELL164♠♦8-1+6
+1.8Round of 32NICKELL364♠♣A+1+4
+1.8Round of 32NICKELL434♥♦2-2-5
+1.5Round of 64GUPTA422NT♣2+1+0
+1.5Round of 32NICKELL413♥♣2=-10
+1.4Round of 64GUPTA283NT♠2-1+10
+1.4Round of 64GUPTA502♥♠5=+5
+1.3Round of 64GUPTA31♥♦5+1+0
+1.1Round of 64GUPTA123♠♥7-2+11
+1.0Round of 64GUPTA462♠♦5-2-1
+0.9Round of 64GUPTA252♥♦K+1+0
+0.9Round of 64GUPTA404♠♥4+2+11
+0.8Round of 64GUPTA152NT♠J-1-2
+0.8Round of 32NICKELL522♦♥6-2+0
+0.8Round of 32NICKELL545♣♠K-1+12
+0.6Round of 32NICKELL474♠♦2+1+0
+0.5Round of 32NICKELL352♥♠J+1+1
+0.5Round of 32NICKELL463NT♥6=+0
+0.4Round of 64GUPTA93NT♠10+2+1
+0.3Round of 64GUPTA444♥♦4=-3
+0.2Round of 32NICKELL283NT♣K-1+10
+0.1Round of 64GUPTA304♠♦Q=+0
+0.0Round of 32NICKELL483♦♦2+2+10
-0.1Round of 64GUPTA144♠♥K+1+0
-0.1Round of 64GUPTA181NT♣Q+1+1
-0.1Round of 64GUPTA384♥♣8+1+0
-0.1Round of 64GUPTA471NT♥2+1+0
-0.1Round of 32NICKELL175♦♦K=+2
-0.2Round of 32NICKELL241NT♣10+2-1
-0.4Round of 64GUPTA194♠♥K+1+0
-0.4Round of 32NICKELL301NT♦2+1-7
-0.4Round of 32NICKELL391NT♣4-1-1
-0.5Round of 32NICKELL214♥♥10+1+10
-0.5Round of 32NICKELL263NT♠10+2+0
-0.7Round of 64GUPTA411♠♠10+3-1
-0.7Round of 64GUPTA485♣♠4=+13
-0.7Round of 64GUPTA524♠♥3+1+0
-0.8Round of 64GUPTA451NT♥Q=-2
-0.8Round of 64GUPTA533NT♥9=-1
-0.9Round of 64GUPTA563NT♣J=+0
-1.0Round of 32NICKELL382♥♠6-1+0
-1.1Round of 64GUPTA362♦♣8-1-4
-1.1Round of 32NICKELL451NT♦2+1+1
-1.2Round of 64GUPTA242NT♠8+1-1
-1.2Round of 32NICKELL272♠♣8-1+2
-1.3Round of 32NICKELL153NT♣10+2+0
-1.4Round of 32NICKELL331NT♦A+1-1
-1.4Round of 32NICKELL552♦♦2=-5
-1.5Round of 32NICKELL533NT♦2-1-6
-2.0Round of 64GUPTA392♦♠4-1-5
-2.0Round of 32NICKELL494♠♦2-1-6
-2.1Round of 64GUPTA52♠♦K-2+0
-2.1Round of 64GUPTA264♠♣5+3-2
-2.3Round of 32NICKELL373♣♠Q+2+1
-2.8Round of 32NICKELL342♠♦K+1-6
-2.8Round of 32NICKELL566NT♦2+1-11
-3.3Round of 64GUPTA353♠♦6-1+1
-3.4Round of 32NICKELL292♠♦K+1-1
-4.2Round of 64GUPTA104♠x♦K-3+12
-4.3Round of 64GUPTA373♠♣K=-6
-4.5Round of 32NICKELL514♠x♦2-1-8
-4.7Round of 64GUPTA315♦♦6=+0
-5.9Round of 64GUPTA132♥♦10+1-13
-6.0Round of 64GUPTA236♦♥2-1-13
-6.3Round of 64GUPTA85♦♠9+1-14
-7.2Round of 64GUPTA167♦♠K-1-14
-7.9Round of 64GUPTA494♠♥J=+0
-9.4Round of 32NICKELL223♠♥K=-11
-10.7Round of 64GUPTA223♦x♦6-5-10