ZHOU Yong Mei · SAIC BLUE

102rank
+24.0Butler · 70 bds
+0.34per board
±4.2swing
+1.10vs par /bd · #10/384
+0.30adjusted /bd
Butler per round: -3 35.4 -3.3 6.3 13.3 -1.7 -23by round

vs par split: bidding +0.32 · play +0.75

Strength of schedule: opponents averaged -0.04/bd (an average draw) → opponent-adjusted +0.30/bd

Card play — on target: opening leads 50.0% #383 of 384 · declarer play 71.4% #192 of 384 · defence 76.9% #333 of 384

Card play by contract type — on target
vs NTvs a suit
Opening leads54.5% (11)45.5% (11)
Declarer play57.1% (7)85.7% (7)
Defence66.7% (18)85.7% (21)

Opening leads by suit led: ♠ 33.3% (6) · ♥ 57.1% (7) · ♦ 60.0% (5) · ♣ 50.0% (4)

vs par by strain: NT +1.68 (34) · a suit +0.49 (35)

vs par by level: part-score +0.70 (23) · game +1.07 (44) · slam +5.50 (2)

By role: declaring +1.17/bd (-0.90 vs par · 30) · defending -0.28/bd (+2.60 vs par · 40)

By vulnerability: vulnerable +0.27/bd (+1.74 vs par · 35) · not vulnerable +0.41/bd (+0.46 vs par · 35)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1L.YangP.Klebanovich – E.ShokhanClosed10-3.0-0.30+3.60
Round 5L.YangI.Volozhenin – K.NekrasovaClosed10+35.4+3.54+4.00
Round 8L.YangJ.Slemr – P.HoderovaOpen10-3.3-0.33-0.10
Round 9L.YangB.Short – A.SymonsOpen10+6.3+0.63+0.40
Round 13G.ChenF.Terraneo – S.TerraneoOpen10+13.3+1.33+1.60
Round 14L.YangP.Franceschetti – A.TartarinOpen10-1.7-0.17+1.70
Round 15G.ChenD.Gaviard – B.PayenOpen10-23.0-2.30-3.50

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
+13.2Round 1BELAKRUS24♠xx♣10+1+14
+10.6Round 5BARIBAL194♥♦3=+3
+9.7Round 13SIGMA45♦x♥7=+3
+9.7Round 14GRANDEBARBE182♠x♠7-3+9
+6.7Round 5BARIBAL143NT♦2+1+0
+5.7Round 13SIGMA33NT♣4-3+11
+5.5Round 8CZECHOSLOVAKIA143NT♦2-2+11
+5.2Round 14GRANDEBARBE113NTx♦5-2+5
+5.0Round 5BARIBAL123NT♠8-1+6
+4.9Round 1BELAKRUS93NT♥3-1+10
+4.2Round 9SHORT223NT♠3+1+11
+4.0Round 5BARIBAL111NT♠6+1+6
+3.9Round 5BARIBAL204♥♣4-1+6
+3.6Round 13SIGMA14♠♠4-1+5
+3.5Round 5BARIBAL153♥♦6-2+2
+2.9Round 5BARIBAL163♠♥2+1+7
+2.6Round 9SHORT254♠♣3-1+5
+2.6Round 9SHORT273NT♥J=+7
+2.6Round 13SIGMA92NT♠Q=+0
+1.9Round 8CZECHOSLOVAKIA183♠♥A-1+0
+1.9Round 9SHORT232♠♦Q+2+1
+1.8Round 5BARIBAL133NT♦9-1+12
+1.6Round 15PAYEN292♣♠5+1-1
+1.2Round 8CZECHOSLOVAKIA153NT♥2+3-11
+0.9Round 9SHORT263NT♦10+2-13
+0.9Round 13SIGMA52♥♠3+1+0
+0.8Round 15PAYEN255♥♠2-1+3
+0.7Round 14GRANDEBARBE195♠♣3=+0
+0.6Round 1BELAKRUS83NT♥7+3-11
+0.6Round 14GRANDEBARBE153NT♣5+2+10
+0.4Round 1BELAKRUS43NT♥J=+13
+0.4Round 1BELAKRUS72♠♥Q=+0
+0.4Round 15PAYEN211♠♥10+2+0
+0.3Round 9SHORT293NT♠Q=-2
+0.3Round 9SHORT301NT♣A=-2
+0.3Round 13SIGMA6Pass+3
+0.1Round 15PAYEN273NT♠2=-9
+0.0Round 14GRANDEBARBE172♠♥2+1-1
-0.1Round 14GRANDEBARBE123NT♣5+2+0
-0.2Round 8CZECHOSLOVAKIA114♥♣3=+1
-0.6Round 13SIGMA83NT♦3+1+0
-0.7Round 8CZECHOSLOVAKIA131NT♥K+1+0
-0.8Round 9SHORT244♠♣3+2-1
-1.0Round 5BARIBAL174♠♣10+2-1
-1.0Round 8CZECHOSLOVAKIA202♦♥6+1+1
-1.2Round 8CZECHOSLOVAKIA122NT♥3+1+10
-1.4Round 9SHORT214♠♥J+1+0
-1.5Round 8CZECHOSLOVAKIA164♠♥J+1+0
-1.7Round 1BELAKRUS35♦x♠A-1+0
-1.8Round 13SIGMA104♥♠A-1+1
-1.8Round 15PAYEN303NT♦J+1+0
-1.9Round 15PAYEN231NT♠6=+2
-1.9Round 15PAYEN241NT♥10-1-4
-2.0Round 5BARIBAL182NT♠2+2-1
-2.1Round 13SIGMA73NT♠5-2-7
-2.5Round 8CZECHOSLOVAKIA173♠♦A-1-6
-2.5Round 14GRANDEBARBE142♠♦7-2+0
-3.2Round 1BELAKRUS53NT♥3+1-1
-3.2Round 14GRANDEBARBE164NT♠8+3+9
-3.6Round 1BELAKRUS66NT♠Q+1+11
-3.8Round 1BELAKRUS14♥♣10=+0
-4.3Round 9SHORT283♥♦7-3-2
-4.8Round 8CZECHOSLOVAKIA194♠♦3=-7
-5.0Round 13SIGMA23NT♣7+1+0
-5.2Round 14GRANDEBARBE134♠♠5=-10
-5.6Round 15PAYEN283NT♠5-1-10
-6.0Round 15PAYEN223NT♠8-1-6
-6.9Round 14GRANDEBARBE202♦x♠3-3-5
-8.7Round 15PAYEN264♥♠8=-10
-10.2Round 1BELAKRUS106♠♥A=+0