CHENG Ziyu (Max) · CARROTS

20rank
+19.6Butler · 42 bds
+0.47per board
±4.3swing
+1.43vs par /bd · #6/89
+0.09adjusted /bd
Butler per round: -9.7 9 13.4 -2.2 11.6 13 -15.5by round

vs par split: bidding +1.36 · play +0.07

Strength of schedule: opponents averaged -0.38/bd (an easy draw) → opponent-adjusted +0.09/bd

Card play — on target: opening leads 83.3% #52 of 89 · declarer play 70.0% #71 of 89 · defence 74.1% #64 of 89

Card play by contract type — on target
vs NTvs a suit
Opening leads66.7% (9)100.0% (9)
Declarer play100.0% (2)62.5% (8)
Defence50.0% (10)88.2% (17)

Opening leads by suit led: ♠ 100.0% (4) · ♥ 83.3% (6) · ♦ 100.0% (4) · ♣ 50.0% (4)

vs par by strain: NT -0.79 (14) · a suit +2.54 (28)

vs par by level: part-score +0.00 (22) · game +3.00 (20)

By role: declaring +0.87/bd (-0.80 vs par · 15) · defending +0.24/bd (+2.67 vs par · 27)

By vulnerability: vulnerable +0.33/bd (+2.76 vs par · 21) · not vulnerable +0.60/bd (+0.10 vs par · 21)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1C.HeL.Fegarty – J.FegartyOpen6-9.7-1.62-0.67
Round 2C.HeS.Garcia – M.Arreaga EstevezOpen6+9.0+1.50+3.33
Round 4Q.ChenD.Kapiris – P.SkordasOpen6+13.4+2.23-0.33
Round 5Q.ChenM.Kemeny – Z.ArgayClosed6-2.2-0.37+4.50
Round 6C.HeG.Morgan – LUKE - PAREDI JackClosed6+11.6+1.93+1.50
Round 7C.HeB.Vasickova – A.OlmerClosed6+13.0+2.17+2.83
Round 8C.HeI.Oeberg – M.AustadClosed6-15.5-2.58-1.17

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
+12.9Round 4FOTINAKIS245♣x♥5-4+12
+10.1Round 5HUNGARY U21265♣x♠K-2+15
+8.0Round 6AUSTRALIA13♥♦Q=+10
+5.7Round 7CZECH REPUBLIC B103♠♠7-2+2
+5.3Round 2ECUADOR GIRLS113NT♠Q=+6
+5.2Round 2ECUADOR GIRLS73♠♣K+1+10
+4.7Round 4FOTINAKIS195♦x♥8=+4
+3.7Round 6AUSTRALIA63NT♥A+1+1
+3.4Round 7CZECH REPUBLIC B74♠♣5+1+13
+3.4Round 7CZECH REPUBLIC B124♥x♣3-1+5
+2.9Round 6AUSTRALIA25♦♦K=-1
+2.8Round 2ECUADOR GIRLS84♥♦K+1+1
+1.9Round 1ENGLAND U2144♣x♦10-1+8
+1.9Round 2ECUADOR GIRLS94♠♥7=+0
+1.9Round 7CZECH REPUBLIC B93NT♠Q+1-1
+1.4Round 1ENGLAND U2115♦♠K-1+5
+0.9Round 4FOTINAKIS213♠♠2=-8
+0.8Round 4FOTINAKIS204♥♣Q+1+0
+0.7Round 6AUSTRALIA41NT♦2-2+2
+0.4Round 4FOTINAKIS231NT♦8=+0
+0.2Round 1ENGLAND U2121NT♦10+4-2
+0.1Round 8NORWAY U21141NT♥2-1-2
-0.3Round 7CZECH REPUBLIC B112NT♥6=-1
-0.4Round 8NORWAY U21184♥♣2=+0
-1.1Round 5HUNGARY U21302♥♥3+1+7
-1.1Round 7CZECH REPUBLIC B81NT♠7-2-1
-1.2Round 6AUSTRALIA32♠♥J-1-3
-1.3Round 8NORWAY U21173♠♣9+2-6
-1.8Round 8NORWAY U21163NT♦K=-3
-1.9Round 1ENGLAND U2161NT♣2-1-7
-2.1Round 5HUNGARY U21273NT♥3+3-1
-2.1Round 5HUNGARY U21281NT♠3+3-2
-2.3Round 5HUNGARY U21293♣♥Q=-1
-2.5Round 1ENGLAND U2153♥♥5=+0
-2.5Round 6AUSTRALIA51NT♣Q=+0
-2.9Round 2ECUADOR GIRLS123♥♥9+1-7
-3.3Round 2ECUADOR GIRLS103♠♦7=+10
-4.2Round 8NORWAY U21134♥♠J+2+13
-4.7Round 5HUNGARY U21255♣x♥J=+9
-6.3Round 4FOTINAKIS224♥♦5=-10
-7.9Round 8NORWAY U21153♣♦3-3-9
-8.8Round 1ENGLAND U2135♣x♦Q-3-8