ZHANG De Zhong · ZHIHAOLE

303rank
-7.9Butler · 21 bds
-0.38per board
±4.8swing
+1.19vs par /bd
-0.85adjusted /bd
Butler per round: -3.3 -8.8 4.2by round

vs par split: bidding -0.57 · play +1.76

Strength of schedule: opponents averaged -0.47/bd (an easy draw) → opponent-adjusted -0.85/bd

Card play — on target: opening leads 100.0% · declarer play 75.0% · defence 90.0%

Card play by contract type — on target
vs NTvs a suit
Opening leads100.0% (1)100.0% (3)
Declarer play50.0% (2)100.0% (2)
Defence66.7% (3)100.0% (7)

Opening leads by suit led: ♥ 100.0% (1) · ♦ 100.0% (2) · ♣ 100.0% (1)

vs par by strain: NT +0.17 (6) · a suit +1.60 (15)

vs par by level: part-score -0.60 (5) · game +1.42 (12) · slam +2.75 (4)

By role: declaring -1.09/bd (-2.54 vs par · 11) · defending +0.41/bd (+5.30 vs par · 10)

By vulnerability: vulnerable -0.74/bd (+0.46 vs par · 11) · not vulnerable +0.02/bd (+2.00 vs par · 10)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 4Z.LuoY.Atabey – U.SemerciClosed7-3.3-0.47+1.00
Round 5Z.LuoX.Li – R.ZhangClosed7-8.8-1.26-0.71
Round 6Z.LuoG.Narkiewicz – N.SakowskaClosed7+4.2+0.60+3.29

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
+7.1Round 4ATABEY236♥♦3-1+17
+6.2Round 4ATABEY263♠♣A-1+13
+6.2Round 6JOEL143NTxx♠Q-1+11
+3.6Round 5BEYOND72NT♥4=+0
+3.4Round 6JOEL126♠x♦8-4+12
+3.3Round 6JOEL85♥♣2-2+11
+3.2Round 5BEYOND15♥♠2+1-1
+1.9Round 4ATABEY243NT♣J+1-1
+0.3Round 6JOEL94♥♣9+1+0
+0.1Round 5BEYOND24♥♠J+1+0
-0.1Round 4ATABEY253NT♦J=+0
-0.6Round 6JOEL131NT♥5+2-10
-1.1Round 6JOEL104♥♥3+1+0
-1.3Round 4ATABEY273♠♣A-2+0
-1.5Round 5BEYOND64♠♦A=+1
-3.3Round 5BEYOND43NT♥10+1+1
-3.8Round 4ATABEY284♥♠A-1-5
-5.4Round 5BEYOND34♥♣J+1+0
-5.5Round 5BEYOND53♣♣2-2-6
-7.3Round 6JOEL116♠♦8+1-1
-13.3Round 4ATABEY226♣♥10-2-17