BOS Berend van den · NETHERLANDS

283rank
-24.9Butler · 35 bds
-0.71per board
±4.8swing
-0.97vs par /bd · #273/311
-0.39adjusted /bd
Butler per round: -2.5 -13 -2.5 -9.4 2.5by round

vs par split: bidding -0.23 · play -0.74

Strength of schedule: opponents averaged +0.32/bd (a tough draw) → opponent-adjusted -0.39/bd

Card play — on target: opening leads 62.5% #258 of 310 · declarer play 62.5% #258 of 310 · defence 77.8% #242 of 311

Card play by contract type — on target
vs NTvs a suit
Opening leads0.0% (1)71.4% (7)
Declarer play33.3% (3)80.0% (5)
Defence0.0% (2)87.5% (16)

Opening leads by suit led: ♠ 100.0% (1) · ♥ 100.0% (1) · ♦ 33.3% (3) · ♣ 66.7% (3)

vs par by strain: NT -4.14 (7) · a suit -0.18 (28)

vs par by level: part-score -0.95 (19) · game -1.86 (14) · slam +5.00 (2)

By role: declaring +0.47/bd (-1.76 vs par · 17) · defending -1.82/bd (-0.22 vs par · 18)

By vulnerability: vulnerable -0.21/bd (-0.53 vs par · 17) · not vulnerable -1.19/bd (-1.39 vs par · 18)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1J.Van LankveldG.Hallberg – P.BertheauOpen7-2.5-0.36-0.29
Round 2J.Van LankveldC.Lin – C.ChenOpen7-13.0-1.86-4.86
Round 5J.Van LankveldK.Karaivanov – R.TrendafilovOpen7-2.5-0.36+1.00
Round 6J.Van LankveldJ.Li – Z.LinOpen7-9.4-1.34-0.71
Round 8J.Van LankveldZ.Shao – R.LianClosed7+2.5+0.36+0.00

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
+14.1Round 8ZHEJIANG JINGFAN255♣x♥7-4+14
+5.9Round 8ZHEJIANG JINGFAN263NT♥6=-1
+5.1Round 2YEH BROS TWO104♥♠A=+3
+3.3Round 6LUCKY SEVEN133♣♠K=+6
+3.2Round 2YEH BROS TWO142♠♥2+1+1
+3.2Round 5PENFOLD33NT♥5+1+1
+2.5Round 8ZHEJIANG JINGFAN274♠♣2=+0
+2.4Round 1BLACK13NT♦7=-1
+2.1Round 5PENFOLD44♠♦K-1+6
+1.6Round 6LUCKY SEVEN142♠♦2=+0
+1.5Round 6LUCKY SEVEN102♦♠3+2+0
+1.0Round 1BLACK53♥♠K=+0
+0.9Round 8ZHEJIANG JINGFAN284♠♦J=+3
+0.8Round 1BLACK23♥♦Q+2+10
+0.4Round 5PENFOLD23♣♦K=-1
+0.3Round 2YEH BROS TWO124♣♠K-1-2
+0.1Round 1BLACK32♠♣K-1-3
+0.1Round 5PENFOLD14♥♣K=+1
-0.0Round 2YEH BROS TWO81NT♠2=-1
-1.4Round 8ZHEJIANG JINGFAN232♣♠K=+1
-1.5Round 1BLACK43♣♣A-2+9
-1.7Round 1BLACK62NT♥4=-10
-1.8Round 6LUCKY SEVEN113♣♣2=+0
-2.0Round 5PENFOLD66♠♣10+1+11
-2.2Round 6LUCKY SEVEN83♦♦A+1-1
-2.3Round 5PENFOLD54♠♦4-1-10
-3.6Round 1BLACK73♥♦9=-7
-4.0Round 5PENFOLD76♥♣9+1-1
-4.4Round 2YEH BROS TWO134♠♥2+3-17
-4.5Round 6LUCKY SEVEN93♥♦K+1-2
-5.6Round 2YEH BROS TWO113♥♠K=-6
-7.3Round 6LUCKY SEVEN124♠x♥6-2-8
-8.3Round 8ZHEJIANG JINGFAN243NT♦4+1-7
-11.2Round 8ZHEJIANG JINGFAN223NT♣5=-10
-11.6Round 2YEH BROS TWO93♥x♥9-4-12