ZHANG Ivy · TEAM CANADA

17rank
+28.6Butler · 128 bds
+0.22per board
±4.6swing
+0.49vs par /bd · #11/43
+0.24adjusted /bd
Butler per round: 2.8 -1.4 6 9.5 23.4 12.3 6.3 -30.3by round

vs par split: bidding +0.69 · play -0.18

Strength of schedule: opponents averaged +0.02/bd (an average draw) → opponent-adjusted +0.24/bd

Card play — on target: opening leads 82.9% #18 of 43 · declarer play 54.8% #41 of 43 · defence 82.8% #40 of 43

Card play by contract type — on target
vs NTvs a suit
Opening leads83.3% (12)82.6% (23)
Declarer play66.7% (9)50.0% (22)
Defence70.0% (20)88.6% (44)

Opening leads by suit led: ♠ 77.8% (9) · ♥ 86.7% (15) · ♦ 60.0% (5) · ♣ 100.0% (6)

vs par by strain: NT -0.27 (37) · a suit +0.82 (90)

vs par by level: part-score -0.70 (46) · game +0.96 (73) · slam +3.25 (8)

By role: declaring +0.94/bd (-1.61 vs par · 64) · defending -0.49/bd (+2.59 vs par · 64)

By vulnerability: vulnerable +0.68/bd (+0.27 vs par · 64) · not vulnerable -0.24/bd (+0.72 vs par · 64)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1W.ChenH.Ozgur – I.OzbayClosed16+2.8+0.17-1.31
Round 2W.ChenN.Senior – N.SmithClosed16-1.4-0.09+1.62
Round 3W.ChenJ.Brody – S.RimstedtClosed16+6.0+0.38+0.81
Round 4W.ChenS.Aitchison – J.LeesOpen16+9.5+0.59+2.62
Round 5W.ChenC.Arnolds – S.KolenClosed16+23.4+1.46+2.62
Round 6W.ChenC.Vechiatto – G.SmykallaClosed16+12.3+0.77+0.69
Round 7W.ChenD.Kazmucha – A.SarniakClosed16+6.3+0.39-1.00
Round 9W.ChenJ.Meyers – K.SanbornClosed16-30.3-1.89-2.12

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
+11.0Round 3BRODY93NT♦6-3+12
+11.0Round 6GERMANY254♥♠5+2+11
+10.3Round 5NO NAME64♥♣3=+13
+10.1Round 4THISTLES176♠♥4=+0
+9.9Round 6GERMANY294♥x♠7-1+12
+9.6Round 7EDMONDS95♣xx♥7-1+8
+8.6Round 1GALATASARAY SK136♦♦Q-2+13
+8.4Round 5NO NAME104♥♠A+1+0
+8.0Round 7EDMONDS55♦x♦2=+12
+7.9Round 1GALATASARAY SK83♠x♦5=+3
+7.1Round 6GERMANY263♥♣2+1+12
+7.0Round 5NO NAME35♣x♥A-1+15
+6.4Round 9BAKER154♠♦2-1+12
+6.3Round 2TRI POLAR323NT♠3+2+1
+5.2Round 3BRODY71NT♥Q=-1
+5.1Round 6GERMANY184♥♠10-4-3
+5.0Round 7EDMONDS26♥♠3+1-11
+4.9Round 4THISTLES214♥♠A+2+11
+4.6Round 2TRI POLAR214♠♥Q-1+12
+4.3Round 4THISTLES233♣x♥A-1+9
+4.2Round 1GALATASARAY SK115♦x♥A-1+0
+4.2Round 4THISTLES324♣♥Q=+6
+4.0Round 9BAKER124♠♥A-3-3
+3.9Round 2TRI POLAR294♠♣10+1+1
+3.8Round 5NO NAME23NT♠7-1+9
+3.7Round 3BRODY82♠♣2-1+9
+3.7Round 5NO NAME87NT♠5=+0
+3.6Round 1GALATASARAY SK41NT♥2+1+0
+3.4Round 4THISTLES314♠♥K-2-2
+3.4Round 6GERMANY214♥♣K+1-8
+3.3Round 2TRI POLAR222♠♥Q=+1
+3.0Round 3BRODY32♦♦5-2-1
+2.8Round 2TRI POLAR204♥x♣A=+7
+2.7Round 4THISTLES184♠♥Q-1+11
+2.6Round 1GALATASARAY SK122♠♥2+1-7
+2.6Round 5NO NAME122♥♠3=+0
+2.4Round 7EDMONDS122♠♥K-1+5
+2.2Round 1GALATASARAY SK54♥♠3=+0
+2.1Round 2TRI POLAR193NT♠Q-2+6
+2.1Round 5NO NAME164♣♦8-2-1
+2.0Round 2TRI POLAR173♥♣K-1+10
+1.9Round 4THISTLES193NT♥3+2+13
+1.6Round 6GERMANY201NT♥4-1-1
+1.4Round 1GALATASARAY SK13♦x♠A-2-4
+1.4Round 3BRODY12♠♣Q-1+2
+1.4Round 3BRODY124♠♥3+3+17
+1.2Round 4THISTLES244♥♣8-2+0
+1.1Round 1GALATASARAY SK102♦♠Q+3-10
+1.0Round 9BAKER63NT♠4+2+1
+0.9Round 6GERMANY173NT♣2+1+1
+0.8Round 1GALATASARAY SK63NT♠9+1-1
+0.8Round 9BAKER113♠♣2+2+6
+0.7Round 1GALATASARAY SK163NT♥J+2-12
+0.7Round 5NO NAME14♥♣2=+0
+0.6Round 7EDMONDS43♥♦8-3-9
+0.3Round 7EDMONDS34♠♣9+1+1
+0.2Round 9BAKER83NT♥2=-11
+0.1Round 4THISTLES223NT♣5+2+13
+0.1Round 5NO NAME53NT♠8+2+0
+0.1Round 6GERMANY244♦♠4-1-2
+0.1Round 9BAKER35♠♥2=+0
-0.0Round 1GALATASARAY SK32♠♦10=+0
-0.0Round 1GALATASARAY SK144♠♦10+1+0
-0.0Round 3BRODY134♥♥K+1+0
-0.1Round 2TRI POLAR263NT♦3-1+6
-0.1Round 9BAKER132♥♦J=+0
-0.2Round 7EDMONDS144♠♦2+1-11
-0.3Round 5NO NAME116NT♣10-1+11
-0.3Round 7EDMONDS104♥♣7=+0
-0.4Round 6GERMANY224♠♥10=+1
-0.4Round 9BAKER165♥♠A=+0
-0.7Round 2TRI POLAR253NT♠10=-1
-0.7Round 5NO NAME134♥♣9=+1
-0.7Round 5NO NAME15Adj.♣A-1
-0.7Round 9BAKER42♥♦3+1+0
-0.9Round 4THISTLES203NT♥6+1-1
-0.9Round 4THISTLES273NT♠3=+1
-0.9Round 7EDMONDS12♠♠A=-1
-1.0Round 3BRODY23NT♥6+2-1
-1.1Round 3BRODY141NT♠5-2-7
-1.2Round 2TRI POLAR243NT♠5+2+0
-1.2Round 3BRODY42♠♥K+1-10
-1.2Round 3BRODY64♠♥A-2-7
-1.2Round 3BRODY104♥♠3+1+0
-1.2Round 7EDMONDS113♥♣K-1+2
-1.2Round 7EDMONDS163♠♥J=-6
-1.7Round 5NO NAME71NT♣2+1-1
-1.7Round 7EDMONDS154♠♣10+1+0
-1.8Round 3BRODY163NT♠10-1-6
-1.8Round 4THISTLES283NT♠8+1-1
-1.9Round 2TRI POLAR273NT♥7+2+0
-1.9Round 6GERMANY194♥♠K+1-13
-1.9Round 6GERMANY284♠♣Q+2+13
-2.0Round 2TRI POLAR314♠♥2-2-11
-2.2Round 2TRI POLAR182♣♦J+1+5
-2.2Round 2TRI POLAR284♠♥10+2-11
-2.2Round 2TRI POLAR301NT♠7+1+0
-2.3Round 9BAKER72♠♥K-2-8
-2.4Round 5NO NAME144♣♥8=+1
-2.4Round 7EDMONDS63NT♥7=+0
-2.6Round 3BRODY114♠♣10+2+11
-2.7Round 4THISTLES294♥♠7+1+0
-2.7Round 6GERMANY312♠♦A-2+9
-2.7Round 9BAKER93♦x♠K-1-9
-3.2Round 6GERMANY234♥♠8=+0
-3.4Round 5NO NAME42NT♥3-1+0
-3.6Round 7EDMONDS73♠♥9+2-14
-3.8Round 6GERMANY303NT♠3+2-10
-3.8Round 7EDMONDS84♥♥9+2-2
-3.9Round 6GERMANY323♣♥A=-5
-4.3Round 3BRODY152♠♣A-2+1
-4.3Round 7EDMONDS132♠♣4+1+10
-4.4Round 9BAKER22NT♦5-2-6
-4.8Round 1GALATASARAY SK71NT♠4-2-3
-5.0Round 4THISTLES255♣x♥7-2-9
-5.3Round 3BRODY52♠♥J+2-6
-5.6Round 9BAKER54♠x♠Q-2-9
-5.9Round 4THISTLES304♥♣7=-3
-6.1Round 4THISTLES262♠♣Q=-6
-6.1Round 5NO NAME93♣♠K-3-5
-6.8Round 1GALATASARAY SK26♥♠10=+13
-7.3Round 9BAKER13NT♠2+2-8
-7.9Round 1GALATASARAY SK93NT♦J-2-13
-9.0Round 6GERMANY275♣x♦9=-6
-9.4Round 9BAKER105♣♥A=+1
-9.9Round 9BAKER146♠♦Q=+0
-10.8Round 1GALATASARAY SK153NT♥Q=+0
-13.9Round 2TRI POLAR237♠♣2=+0