🇺🇸 ZHANG Brian · USA1

3rank
+219.2Butler · 144 bds
+1.52per board
±4.8swing
+0.78vs par /bd · #19/108
+1.38adjusted /bd
Butler per round: 24.2 9.2 0.3 -7.2 16.9 47.4 22.3 34.4 11.6 13 18.1 29by round

vs par split: bidding +0.01 · play +0.76

Strength of schedule: opponents averaged -0.14/bd (an easy draw) → opponent-adjusted +1.38/bd

Card play — on target: opening leads 91.7% #1 of 108 · declarer play 82.1% #12 of 108 · defence 86.8% #15 of 108

Bidding activity — not a pass: 41.7% #57 of 108 (163/391)

Card play by contract type — on target
vs NTvs a suit
Opening leads77.8% (9)96.3% (27)
Declarer play76.5% (17)86.4% (22)
Defence92.6% (27)83.7% (49)

Opening leads by suit led: ♠ 100.0% (7) · ♥ 100.0% (10) · ♦ 90.0% (10) · ♣ 77.8% (9)

vs par by strain: NT +1.44 (54) · a suit +0.38 (90)

vs par by level: part-score +1.28 (50) · game +0.87 (87) · slam -4.00 (7)

By role: declaring +1.57/bd (-2.53 vs par · 68) · defending +1.48/bd (+3.74 vs par · 76)

By vulnerability: vulnerable +1.40/bd (+0.19 vs par · 72) · not vulnerable +1.64/bd (+1.36 vs par · 72)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2A.ChenF.Zeeberg – C.ZeebergClosed12+24.2+2.02+2.33
Round 4A.ChenS.Lillejord – J.BrekkeClosed12+9.2+0.77-0.92
Round 5A.ChenM.Cayla – T.ExbrayatOpen12+0.3+0.02-0.33
Round 6A.ChenZ.Tort – T.AltunOpen12-7.2-0.60-0.50
Round 8A.ChenC.Peng – C.LuClosed12+16.9+1.41-0.25
Round 9A.ChenH.Xing – H.XingOpen12+47.4+3.95+3.67
Round 10A.ChenA.Bukat – M.KlimiukClosed12+22.3+1.86-0.67
Round 11A.ChenA.Zodypache – S.SatishClosed12+34.4+2.87-0.08
Round 13A.ChenH.Wang – H.YuOpen12+11.6+0.97+0.00
Round 15A.ChenK.Mak – M.CaiOpen12+13.0+1.08+3.00
Round 17A.ChenF.Kubat – P.KarlikOpen12+18.1+1.51+2.83
Round 18A.ChenH.Vinevich – S.Zaidenberg GattClosed12+29.0+2.42+0.25

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
+12.5Round 5🇫🇷 FRANCE12♠x♣T-5+12
+12.5Round 10🇵🇱 POLAND245♥x♠K-5+3
+12.2Round 9🇨🇦 CANADA66♠x♣T-1+13
+12.1Round 11🇮🇳 INDIA41NTx♥J-3+12
+11.4Round 11🇮🇳 INDIA103♣x♠J+1+6
+11.3Round 2🇩🇰 DENMARK156♠♥7=-13
+11.1Round 18🇮🇱 ISRAEL203NT♥3-1+13
+10.1Round 9🇨🇦 CANADA84♥♠9-1+11
+9.6Round 13🇨🇳 CHINA86♠♦K=+0
+9.1Round 5🇫🇷 FRANCE94♥♦8+1+6
+8.8Round 15🇭🇰 HONG KONG CHINA44♠x♥J-2+12
+8.7Round 11🇮🇳 INDIA13NT♣4-1+10
+8.6Round 8🇹🇼 CHINESE TAIPEI184♥♠T=+8
+8.1Round 17🇨🇿 CZECH REPUBLIC63♠♠Q+2+7
+7.7Round 9🇨🇦 CANADA115♣♥Q-1+14
+7.1Round 17🇨🇿 CZECH REPUBLIC55♥x♦K-1+11
+7.0Round 2🇩🇰 DENMARK193NT♣5=+6
+6.7Round 8🇹🇼 CHINESE TAIPEI243NT♣7+1+1
+6.5Round 5🇫🇷 FRANCE113NT♦4-1+10
+6.5Round 9🇨🇦 CANADA14♠♥8+1+7
+6.4Round 13🇨🇳 CHINA71NT♦4-2+8
+6.2Round 9🇨🇦 CANADA53NT♥6=-2
+6.2Round 18🇮🇱 ISRAEL213NT♦K=-1
+6.1Round 5🇫🇷 FRANCE32NT♦K-2+7
+5.9Round 17🇨🇿 CZECH REPUBLIC75♥♦Q-1+13
+5.8Round 15🇭🇰 HONG KONG CHINA103NT♠6-1+12
+5.5Round 8🇹🇼 CHINESE TAIPEI233♠♣5-2+2
+5.5Round 10🇵🇱 POLAND212NT♦7=+6
+5.2Round 6🇹🇷 TURKIYE234♦♣7+1+1
+4.9Round 13🇨🇳 CHINA33NT♦3+1+0
+4.8Round 4🇳🇴 NORWAY154♠♦9-1+10
+4.8Round 4🇳🇴 NORWAY234♠♥J+1-13
+4.8Round 11🇮🇳 INDIA63NT♣5+1+1
+4.6Round 17🇨🇿 CZECH REPUBLIC93NT♠5-3+9
+4.5Round 9🇨🇦 CANADA105♦♠4+1+0
+4.3Round 2🇩🇰 DENMARK265♣x♥A-2+0
+4.3Round 18🇮🇱 ISRAEL192♠♦2-2+8
+4.3Round 18🇮🇱 ISRAEL233NT♥7+1+0
+4.2Round 6🇹🇷 TURKIYE184♥♦A+2+1
+4.2Round 10🇵🇱 POLAND174♠♣8=+0
+3.7Round 10🇵🇱 POLAND233NT♠T+1+1
+3.6Round 4🇳🇴 NORWAY174♠♦Q-3+11
+3.6Round 13🇨🇳 CHINA23NT♥7-1+10
+3.6Round 15🇭🇰 HONG KONG CHINA54♠♦Q+1+0
+3.6Round 15🇭🇰 HONG KONG CHINA72♠♣2=+1
+3.5Round 8🇹🇼 CHINESE TAIPEI214♠♣A=+3
+3.5Round 18🇮🇱 ISRAEL182♥♣A+1+0
+3.4Round 11🇮🇳 INDIA123NT♠A+1-13
+3.3Round 10🇵🇱 POLAND164♥♣8-2+2
+3.2Round 8🇹🇼 CHINESE TAIPEI162♠♦5-1+5
+3.1Round 8🇹🇼 CHINESE TAIPEI154♥♦9+1+0
+3.1Round 11🇮🇳 INDIA54♥♠A-2-5
+2.9Round 8🇹🇼 CHINESE TAIPEI254♣x♠3-1-6
+2.7Round 9🇨🇦 CANADA44♥♠J-1+6
+2.7Round 18🇮🇱 ISRAEL264♥♦6=+0
+2.6Round 9🇨🇦 CANADA33NT♣T+2+1
+2.5Round 11🇮🇳 INDIA73NT♦6+1+1
+2.4Round 13🇨🇳 CHINA53NT♥4-1+4
+2.0Round 2🇩🇰 DENMARK203♠♥6=+1
+2.0Round 4🇳🇴 NORWAY224♠♥T=-1
+2.0Round 9🇨🇦 CANADA73♦♠6+1+16
+1.9Round 15🇭🇰 HONG KONG CHINA14♠♦J+1+0
+1.9Round 17🇨🇿 CZECH REPUBLIC83NT♠5=+3
+1.7Round 2🇩🇰 DENMARK172♥x♠J-1+1
+1.7Round 5🇫🇷 FRANCE23NT♦7-2+6
+1.6Round 6🇹🇷 TURKIYE242NT♦4=+0
+1.6Round 15🇭🇰 HONG KONG CHINA23NT♦2-1+5
+1.5Round 6🇹🇷 TURKIYE172♠♦T+3+6
+1.5Round 13🇨🇳 CHINA96NT♠6+1-11
+1.3Round 2🇩🇰 DENMARK163NT♠K+3+16
+1.2Round 4🇳🇴 NORWAY252♠♦2+1+0
+1.2Round 15🇭🇰 HONG KONG CHINA64♠♥K+3-14
+1.2Round 18🇮🇱 ISRAEL244♣♦K-3-7
+1.1Round 11🇮🇳 INDIA34♥♣A+1+0
+1.1Round 13🇨🇳 CHINA12♥♦A=+1
+1.0Round 13🇨🇳 CHINA124♥♣6-1-6
+0.9Round 15🇭🇰 HONG KONG CHINA113♣♥J+1+13
+0.8Round 2🇩🇰 DENMARK183NT♣5=+11
+0.8Round 10🇵🇱 POLAND253NT♣J+2+1
+0.8Round 18🇮🇱 ISRAEL221NT♥7+1+0
+0.7Round 6🇹🇷 TURKIYE204NT♥6+1-13
+0.7Round 9🇨🇦 CANADA25♥♦5-3-11
+0.6Round 4🇳🇴 NORWAY203NT♠Q+1+0
+0.5Round 2🇩🇰 DENMARK243NT♣2+2+0
+0.4Round 4🇳🇴 NORWAY164♠♣3=-1
+0.2Round 10🇵🇱 POLAND192♠♥8+1+0
+0.1Round 2🇩🇰 DENMARK234♥♣K+2+13
+0.1Round 6🇹🇷 TURKIYE253♦♠T-1+2
+0.1Round 9🇨🇦 CANADA91NT♦2+2+0
+0.1Round 17🇨🇿 CZECH REPUBLIC31NT♣4-2+1
+0.1Round 17🇨🇿 CZECH REPUBLIC112♦♥K-1-2
-0.2Round 13🇨🇳 CHINA63♦♠Q+1+0
-0.2Round 17🇨🇿 CZECH REPUBLIC13♣♠A+3-7
-0.3Round 2🇩🇰 DENMARK213♥♣K=-6
-0.3Round 6🇹🇷 TURKIYE194♥♦3+1+0
-0.3Round 6🇹🇷 TURKIYE261NT♠3=+1
-0.3Round 10🇵🇱 POLAND262♠♣7-1+0
-0.3Round 13🇨🇳 CHINA112♥♣T=+7
-0.3Round 17🇨🇿 CZECH REPUBLIC123NT♠4=+1
-0.5Round 8🇹🇼 CHINESE TAIPEI221NT♥6=+1
-0.5Round 18🇮🇱 ISRAEL153♥♦K+1-8
-0.6Round 4🇳🇴 NORWAY184♠♣6+1+0
-0.6Round 8🇹🇼 CHINESE TAIPEI174♥♥8+1+0
-0.7Round 17🇨🇿 CZECH REPUBLIC103NT♥6+1+0
-0.8Round 8🇹🇼 CHINESE TAIPEI261NT♥J+1+10
-0.8Round 11🇮🇳 INDIA93♥♣6-2+1
-0.8Round 15🇭🇰 HONG KONG CHINA125♦♠7+1+11
-1.0Round 2🇩🇰 DENMARK253NT♥5=-11
-1.1Round 4🇳🇴 NORWAY212NT♦Q+1-6
-1.1Round 18🇮🇱 ISRAEL173NT♣8=-2
-1.3Round 4🇳🇴 NORWAY245♠♣K-1-10
-1.3Round 5🇫🇷 FRANCE64♥♣9-1-5
-1.3Round 10🇵🇱 POLAND204♥♣A-1-9
-1.4Round 18🇮🇱 ISRAEL161NT♥4=+1
-1.5Round 10🇵🇱 POLAND152♥♣3+1+0
-1.5Round 10🇵🇱 POLAND183NT♠2-1-6
-1.8Round 11🇮🇳 INDIA83NT♣6+1+0
-2.1Round 5🇫🇷 FRANCE54♠♦A=+0
-2.1Round 18🇮🇱 ISRAEL253NT♦4+3-1
-2.2Round 5🇫🇷 FRANCE81NT♥5-1-4
-2.5Round 6🇹🇷 TURKIYE154♠♣T+1+0
-2.6Round 4🇳🇴 NORWAY192♠♦Q+1-1
-2.6Round 4🇳🇴 NORWAY262♦♣A+2+0
-2.9Round 5🇫🇷 FRANCE73♠♣Q=+0
-3.3Round 10🇵🇱 POLAND222♥♦J=-6
-3.4Round 8🇹🇼 CHINESE TAIPEI203NT♥5-3-10
-3.5Round 2🇩🇰 DENMARK224♥♠T+1+10
-3.5Round 17🇨🇿 CZECH REPUBLIC24♠♥2=+1
-3.6Round 5🇫🇷 FRANCE104♠♣T-1-12
-4.3Round 15🇭🇰 HONG KONG CHINA82♠♥K=-6
-4.3Round 15🇭🇰 HONG KONG CHINA93NT♦4=+2
-4.4Round 11🇮🇳 INDIA24♠♣K=-11
-4.8Round 6🇹🇷 TURKIYE223NT♦8-1-10
-5.0Round 15🇭🇰 HONG KONG CHINA34♠♣8+1+0
-5.0Round 17🇨🇿 CZECH REPUBLIC42♠♦A-2-3
-5.7Round 11🇮🇳 INDIA113NT♠J=-3
-5.9Round 6🇹🇷 TURKIYE214♥♥J=-7
-6.3Round 13🇨🇳 CHINA103NT♦2=+0
-6.7Round 6🇹🇷 TURKIYE166♠♥2=+13
-7.9Round 9🇨🇦 CANADA123♣♥5+2-11
-10.9Round 5🇫🇷 FRANCE44♥♥K=-10
-11.3Round 8🇹🇼 CHINESE TAIPEI197♣♦J-1-17
-12.1Round 13🇨🇳 CHINA46♣♣T-1-13
-12.6Round 5🇫🇷 FRANCE124♠x♥8-3-14