🇨🇳 ZHAO Ziwen · CHINA

71rank
-32.4Butler · 88 bds
-0.37per board
±4.1swing
-0.43vs par /bd · #79/105
-0.51adjusted /bd
Butler per round: 9.7 -7.2 2 -9.1 0.9 7.9 -13.4 -29.2 -4.9 27.1 -16.2by round

vs par split: bidding -0.69 · play +0.26

Strength of schedule: opponents averaged -0.15/bd (an easy draw) → opponent-adjusted -0.51/bd

Card play — on target: opening leads 72.7% #91 of 105 · declarer play 54.2% #93 of 105 · defence 91.8% #5 of 105

Bidding activity — not a pass: 43.0% #55 of 105 (102/237)

Card play by contract type — on target
vs NTvs a suit
Opening leads50.0% (4)77.8% (18)
Declarer play50.0% (6)55.6% (18)
Defence100.0% (12)89.2% (37)

Opening leads by suit led: ♠ 66.7% (6) · ♥ 66.7% (6) · ♦ 60.0% (5) · ♣ 100.0% (5)

vs par by strain: NT -1.00 (20) · a suit -0.27 (68)

vs par by level: part-score +0.30 (40) · game +0.24 (41) · slam -8.57 (7)

By role: declaring -0.24/bd (-3.28 vs par · 39) · defending -0.47/bd (+1.84 vs par · 49)

By vulnerability: vulnerable -0.29/bd (+0.29 vs par · 44) · not vulnerable -0.44/bd (-1.16 vs par · 44)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1Z.ZhuS.Lahav – A.Zaidenberg GattOpen8+9.7+1.21-0.25
Round 2Z.ZhuG.Chan – G.ChanOpen8-7.2-0.90-2.25
Round 4Z.ZhuD.De Rooij – K.VisserClosed8+2.0+0.25+0.50
Round 5Z.ZhuT.Bernieri – X.RoulleClosed8-9.1-1.14-1.75
Round 7Z.ZhuT.Lillejord – B.MoeClosed8+0.9+0.11-0.12
Round 8Z.ZhuC.Zeeberg – T.Holm FaxoeeOpen8+7.9+0.99-2.12
Round 10Z.ZhuW.Gu – W.LiuOpen8-13.4-1.68-2.75
Round 11Z.ZhuB.Mroz – M.ProkopowiczClosed8-29.2-3.65-1.88
Round 13Z.ZhuA.Zodypache – A.ZodypacheClosed8-4.9-0.61-1.88
Round 14Z.ZhuK.Wei – A.ChaunalClosed8+27.1+3.39+7.88
Round 17Z.ZhuS.Chen – C.ChuOpen8-16.2-2.02-0.12

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
+9.6Round 14🇺🇸 USA2194♠♥A-2+11
+8.2Round 4🇳🇱 NETHERLANDS286♣♠Q=-11
+7.2Round 1🇮🇱 ISRAEL15♣♠K-2+11
+6.9Round 8🇩🇰 DENMARK294♠♠6+2+1
+6.8Round 7🇳🇴 NORWAY225♥♦A-2+11
+6.5Round 14🇺🇸 USA2244♥♠8-1+10
+6.4Round 1🇮🇱 ISRAEL33♠♣K-1+5
+5.5Round 4🇳🇱 NETHERLANDS303♠♥K-2+5
+5.2Round 10🇨🇦 CANADA136♠♣3=-13
+5.1Round 14🇺🇸 USA2173NT♠4-2+11
+4.6Round 2🇭🇰 HONG KONG CHINA123♥♠A+1+1
+4.6Round 14🇺🇸 USA2182♥♥2-2+8
+4.1Round 13🇮🇳 INDIA103♠♣A-1+11
+3.6Round 8🇩🇰 DENMARK274♠♥5-1+10
+3.4Round 13🇮🇳 INDIA114♠♣3=+3
+3.3Round 17🇹🇼 CHINESE TAIPEI134♥♣A+1+0
+3.1Round 1🇮🇱 ISRAEL61NT♥5-1+4
+3.1Round 8🇩🇰 DENMARK313NT♦7+1+0
+2.9Round 4🇳🇱 NETHERLANDS312♥♠6=+0
+2.9Round 8🇩🇰 DENMARK254♥♠7=+3
+2.6Round 7🇳🇴 NORWAY183♦♣8+1+1
+2.5Round 8🇩🇰 DENMARK324♥♠K+1-10
+2.5Round 14🇺🇸 USA2214♥♣4+1+1
+2.2Round 4🇳🇱 NETHERLANDS252♠♣3+1+7
+1.9Round 7🇳🇴 NORWAY192♥♣5+2+6
+1.8Round 5🇫🇷 FRANCE24♥♠K-1-1
+1.1Round 11🇵🇱 POLAND201NT♥6+1+0
+0.9Round 8🇩🇰 DENMARK304♠♦3+1+0
+0.9Round 14🇺🇸 USA2203♥♦Q-1+11
+0.8Round 14🇺🇸 USA2223NT♠4+3+1
+0.5Round 1🇮🇱 ISRAEL42♠♣Q+1+0
+0.5Round 2🇭🇰 HONG KONG CHINA112♦♣Q+1+7
+0.5Round 10🇨🇦 CANADA165♣♥T-4+7
+0.4Round 2🇭🇰 HONG KONG CHINA94♠♦5=+0
+0.3Round 1🇮🇱 ISRAEL81NT♥5-2-8
+0.3Round 7🇳🇴 NORWAY241NT♣2=-1
+0.2Round 2🇭🇰 HONG KONG CHINA133♠♦A=+0
+0.2Round 17🇹🇼 CHINESE TAIPEI94♥♠J+2+11
+0.1Round 1🇮🇱 ISRAEL74♠♦A=+0
+0.1Round 5🇫🇷 FRANCE74♠♦6=+0
+0.1Round 13🇮🇳 INDIA134♠♦7=-1
+0.1Round 17🇹🇼 CHINESE TAIPEI142♠♦A-1+4
-0.2Round 17🇹🇼 CHINESE TAIPEI162NT♥8=+0
-0.5Round 5🇫🇷 FRANCE34♠♦3=+0
-0.5Round 11🇵🇱 POLAND193NT♦5=+0
-0.6Round 13🇮🇳 INDIA163♠♦T+1-10
-0.8Round 5🇫🇷 FRANCE44♥♠T-1+1
-0.9Round 4🇳🇱 NETHERLANDS261NT♠A+3+10
-1.0Round 5🇫🇷 FRANCE61NT♥2+2-10
-1.2Round 4🇳🇱 NETHERLANDS273♠♦A-2-8
-1.2Round 7🇳🇴 NORWAY202♠♣Q=-1
-1.2Round 10🇨🇦 CANADA143♥♦K-1-5
-1.4Round 1🇮🇱 ISRAEL22♠♦Q=+1
-1.4Round 11🇵🇱 POLAND211♥♠4-1-1
-1.4Round 13🇮🇳 INDIA123NT♣5=-2
-1.5Round 7🇳🇴 NORWAY213NT♥6=-11
-1.5Round 13🇮🇳 INDIA152♠♥5+1+0
-1.8Round 5🇫🇷 FRANCE12♠♥3-3-6
-1.8Round 10🇨🇦 CANADA124♠♣8-1-6
-1.8Round 11🇵🇱 POLAND172♠♣9+1+0
-1.8Round 17🇹🇼 CHINESE TAIPEI114♠♦7+1+0
-1.9Round 13🇮🇳 INDIA93♣♦6-1-5
-2.1Round 7🇳🇴 NORWAY172♥♠A=-6
-2.2Round 2🇭🇰 HONG KONG CHINA102♠♦K=-5
-2.8Round 4🇳🇱 NETHERLANDS295♦♠3+1+1
-2.9Round 14🇺🇸 USA2233♦♠A+2+10
-3.0Round 5🇫🇷 FRANCE82♠♦2-3-2
-3.1Round 17🇹🇼 CHINESE TAIPEI153NT♣5=+2
-3.2Round 2🇭🇰 HONG KONG CHINA144♠♣5-2-5
-3.2Round 10🇨🇦 CANADA151NTx♠K=-2
-3.3Round 2🇭🇰 HONG KONG CHINA154♠♥2-1-10
-3.8Round 8🇩🇰 DENMARK263♣♣8-2-7
-3.8Round 10🇨🇦 CANADA113NT♦4+2+0
-3.9Round 5🇫🇷 FRANCE53♥♠7+1+4
-3.9Round 10🇨🇦 CANADA96♠♣A=+0
-4.2Round 2🇭🇰 HONG KONG CHINA162♥♣6=-6
-4.9Round 11🇵🇱 POLAND233NT♥3=+1
-5.0Round 17🇹🇼 CHINESE TAIPEI123NT♦3+1-1
-5.2Round 10🇨🇦 CANADA105♦♠A+1-3
-5.9Round 7🇳🇴 NORWAY233♠♥2=+0
-6.5Round 1🇮🇱 ISRAEL54♠x♥T=-15
-6.9Round 11🇵🇱 POLAND184♥x♣A-2+7
-7.0Round 11🇵🇱 POLAND245♣♠7-3-11
-7.1Round 13🇮🇳 INDIA146♥♦A-1-11
-7.8Round 11🇵🇱 POLAND226♠♥3=-11
-8.2Round 8🇩🇰 DENMARK287NT♦J-2-14
-9.7Round 17🇹🇼 CHINESE TAIPEI105♦♦2-2-17
-11.9Round 4🇳🇱 NETHERLANDS327NT♣6=+0