🇨🇳 ZHANG Boxin · CHINA1

16rank
+111.0Butler · 112 bds
+0.99per board
±5.3swing
+1.94vs par /bd · #2/75
+0.73adjusted /bd
Butler per round: 6.9 83 8.2 -11 13.6 40.5 -14.7 -15.5by round

vs par split: bidding +1.52 · play +0.42

Strength of schedule: opponents averaged -0.27/bd (an easy draw) → opponent-adjusted +0.73/bd

Card play — on target: opening leads 80.0% #32 of 75 · declarer play 78.9% #16 of 75 · defence 93.0% #4 of 75

Card play by contract type — on target
vs NTvs a suit
Opening leads62.5% (8)85.2% (27)
Declarer play100.0% (5)71.4% (14)
Defence93.3% (15)92.9% (42)

Opening leads by suit led: ♠ 90.9% (11) · ♥ 50.0% (10) · ♦ 100.0% (7) · ♣ 85.7% (7)

vs par by strain: NT +0.27 (33) · a suit +2.63 (79)

vs par by level: part-score +2.93 (42) · game +0.90 (62) · slam +4.75 (8)

By role: declaring +0.34/bd (-1.69 vs par · 55) · defending +1.62/bd (+5.44 vs par · 57)

By vulnerability: vulnerable +1.66/bd (+3.54 vs par · 56) · not vulnerable +0.32/bd (+0.34 vs par · 56)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2J.BaiV.Dalpozzo – F.DalpozzoOpen14+6.9+0.49+0.71
Round 4J.BaiL.Beko – B.HollosOpen14+83.0+5.93+4.86
Round 5J.BaiC.Smith – K.VohraOpen14+8.2+0.59+3.50
Round 8J.BaiB.Zhu – H.DongOpen14-11.0-0.79-0.14
Round 9J.BaiM.Bertheau – E.WibergClosed14+13.6+0.97+3.21
Round 11J.BaiL.Gunardi – A.ImawanClosed14+40.5+2.89+5.07
Round 12B.JiangJ.Blom – T.Van De PaverdOpen14-14.7-1.05-1.57
Round 13J.BaiM.Maszenda – K.KopkaOpen14-15.5-1.11-0.14

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
+17.8Round 4🇭🇺 HUNGARY26♥x♦K-6+18
+14.9Round 4🇭🇺 HUNGARY43♦x♥2-4+15
+13.2Round 11🇮🇩 INDONESIA76♥♣A-2+17
+12.4Round 4🇭🇺 HUNGARY104♥♠8-2+13
+11.6Round 11🇮🇩 INDONESIA43NT♣2=+10
+11.5Round 9🇸🇪 SWEDEN214♠♦5+3+17
+10.3Round 9🇸🇪 SWEDEN205♦x♠K-2+12
+8.2Round 5🇺🇸 USA245♥♠A-4+8
+7.9Round 8🇨🇦 CANADA74♠♣A-1+12
+7.8Round 4🇭🇺 HUNGARY73NT♠3+2+1
+7.8Round 9🇸🇪 SWEDEN151NTx♣3-2+8
+6.8Round 9🇸🇪 SWEDEN233♥♠5=+7
+6.8Round 11🇮🇩 INDONESIA123NT♠7-2+12
+6.2Round 13🇵🇱 POLAND23NT♣6+1+4
+6.0Round 2🇮🇹 ITALY264♥♠A=+9
+5.8Round 8🇨🇦 CANADA104♣♠10+1+15
+5.7Round 5🇺🇸 USA284♥♣6+1+1
+5.5Round 4🇭🇺 HUNGARY144♠♦K=+3
+5.3Round 11🇮🇩 INDONESIA93NT♦5-1+10
+5.2Round 5🇺🇸 USA222NT♣6+1+7
+5.1Round 4🇭🇺 HUNGARY83♥♣A=+6
+5.0Round 2🇮🇹 ITALY254♠♥2+3+14
+5.0Round 4🇭🇺 HUNGARY92♠♦A=+6
+4.8Round 13🇵🇱 POLAND124♦♦8+1+7
+4.7Round 4🇭🇺 HUNGARY111NT♥J-2+5
+4.7Round 9🇸🇪 SWEDEN273♥♥7-3+1
+4.7Round 12🇳🇱 NETHERLANDS253♣♠A-1+5
+4.3Round 4🇭🇺 HUNGARY54♥♠A-1+10
+4.2Round 5🇺🇸 USA173♦♠8+2+13
+4.2Round 11🇮🇩 INDONESIA143NT♥3-3+0
+4.1Round 4🇭🇺 HUNGARY12♥♦A=+5
+4.0Round 5🇺🇸 USA234♠♣K-2+7
+3.6Round 5🇺🇸 USA196NT♦6=+0
+3.5Round 9🇸🇪 SWEDEN193NT♠2+2+0
+3.2Round 4🇭🇺 HUNGARY33NT♠J+2+0
+3.2Round 11🇮🇩 INDONESIA54♠♣Q+1+1
+3.0Round 13🇵🇱 POLAND75♦x♠2=+6
+2.8Round 2🇮🇹 ITALY184♠♥A=+0
+2.8Round 8🇨🇦 CANADA45♣x♠A-2+4
+2.8Round 9🇸🇪 SWEDEN254♠♣3-1+5
+2.5Round 2🇮🇹 ITALY164♥♦Q=+3
+2.2Round 11🇮🇩 INDONESIA13♦♠9=+5
+2.0Round 2🇮🇹 ITALY202♠♦J-2+3
+2.0Round 4🇭🇺 HUNGARY63♦♠5=+0
+2.0Round 5🇺🇸 USA202♠♣10+1+10
+2.0Round 8🇨🇦 CANADA61NT♥5+2-10
+1.9Round 2🇮🇹 ITALY223♠♦J=+0
+1.9Round 12🇳🇱 NETHERLANDS244♠♦6+1+0
+1.5Round 5🇺🇸 USA273NT♣K+1+4
+1.2Round 8🇨🇦 CANADA114♣♥J=+0
+1.2Round 11🇮🇩 INDONESIA82♥♠A-2-1
+1.2Round 12🇳🇱 NETHERLANDS155♥♥5+1-13
+1.0Round 2🇮🇹 ITALY154♠♥Q+1+0
+1.0Round 2🇮🇹 ITALY273NT♣A+2+0
+0.8Round 11🇮🇩 INDONESIA134♥♦4+2+13
+0.7Round 11🇮🇩 INDONESIA23♦♠7-1+10
+0.7Round 12🇳🇱 NETHERLANDS201NT♥4+2+10
+0.4Round 4🇭🇺 HUNGARY122♣♥4=-2
+0.3Round 11🇮🇩 INDONESIA101NT♥6=+2
+0.3Round 13🇵🇱 POLAND83NT♥5+2+0
+0.2Round 2🇮🇹 ITALY283NT♦3+2-11
+0.2Round 5🇺🇸 USA165♣♠6+1+11
+0.2Round 8🇨🇦 CANADA53♦♠7=+0
+0.2Round 8🇨🇦 CANADA123NT♣Q=+0
+0.2Round 12🇳🇱 NETHERLANDS213♠♣8=+0
+0.0Round 12🇳🇱 NETHERLANDS263♠♥J+1+10
+0.0Round 13🇵🇱 POLAND135♠♣9=+13
-0.2Round 9🇸🇪 SWEDEN262♠♥10=+10
-0.3Round 8🇨🇦 CANADA13♣♦A-1-3
-0.5Round 11🇮🇩 INDONESIA33NT♠7+2+0
-0.5Round 12🇳🇱 NETHERLANDS181NT♠3+1+0
-0.5Round 13🇵🇱 POLAND66♦♠7-1+13
-0.7Round 13🇵🇱 POLAND54♥♦6=+1
-0.8Round 2🇮🇹 ITALY174♣♣8+1-13
-0.9Round 9🇸🇪 SWEDEN184♠♥2+1+13
-0.9Round 12🇳🇱 NETHERLANDS191NT♠6-2+0
-1.0Round 8🇨🇦 CANADA34♦♥J+1-1
-1.2Round 2🇮🇹 ITALY212♠♥3=+0
-1.2Round 12🇳🇱 NETHERLANDS272NT♠5+1-1
-1.5Round 8🇨🇦 CANADA91NT♦3+1+0
-1.7Round 8🇨🇦 CANADA134♦♠2=+9
-1.8Round 12🇳🇱 NETHERLANDS163♣♥A=-6
-1.9Round 13🇵🇱 POLAND144♥♣A+1+0
-2.0Round 2🇮🇹 ITALY194♠♦9=+0
-2.0Round 12🇳🇱 NETHERLANDS223♠♣3-1-4
-2.0Round 13🇵🇱 POLAND113NT♦5=-11
-2.1Round 5🇺🇸 USA213NT♠5=+1
-2.1Round 11🇮🇩 INDONESIA63♣♠9=-1
-2.2Round 5🇺🇸 USA254♥♣2-1+1
-2.3Round 9🇸🇪 SWEDEN172♥♣3-1-4
-2.6Round 13🇵🇱 POLAND33NT♠J-1-5
-3.0Round 13🇵🇱 POLAND93NT♦2-2-6
-3.5Round 12🇳🇱 NETHERLANDS283NT♠10+2-1
-4.1Round 9🇸🇪 SWEDEN164♠♠9+1-1
-4.2Round 4🇭🇺 HUNGARY133NT♠A-1-12
-4.7Round 2🇮🇹 ITALY236♥♣7=+13
-4.7Round 9🇸🇪 SWEDEN243NT♠A+2+0
-4.8Round 12🇳🇱 NETHERLANDS175♦♠10-1-10
-5.8Round 5🇺🇸 USA154♥♦6-1-10
-5.8Round 13🇵🇱 POLAND14♠♦7=+0
-6.0Round 5🇺🇸 USA186♦♦5=+0
-6.4Round 11🇮🇩 INDONESIA115♣♥A=-7
-6.5Round 13🇵🇱 POLAND44♠♦8-1-12
-6.8Round 2🇮🇹 ITALY243NT♣5-4-8
-6.8Round 13🇵🇱 POLAND104♠♦K-1-12
-8.3Round 8🇨🇦 CANADA144♠x♥A=-10
-8.7Round 12🇳🇱 NETHERLANDS235♣♥7-1-12
-9.1Round 8🇨🇦 CANADA86♥♥2-1-10
-9.1Round 9🇸🇪 SWEDEN284♥♣4-1-10
-9.2Round 8🇨🇦 CANADA24♥♦2=-8
-10.3Round 5🇺🇸 USA264♠♥6+1-4
-12.5Round 9🇸🇪 SWEDEN226♠♦A-1-13