ZHANG Yalan · YEH MIX

117rank
+9.3Butler · 20 bds
+0.47per board
±5.7swing
-1.10vs par /bd
+0.27adjusted /bd
Butler per round: 15.1 -5.8by round

vs par split: bidding -1.05 · play -0.05

Strength of schedule: opponents averaged -0.20/bd (an easy draw) → opponent-adjusted +0.27/bd

Card play — on target: opening leads 100.0% · declarer play 62.5% · defence 100.0%

Card play by contract type — on target
vs NTvs a suit
Opening leads·100.0% (2)
Declarer play50.0% (2)66.7% (6)
Defence100.0% (1)100.0% (5)

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

vs par by strain: NT +1.50 (4) · a suit -1.75 (16)

vs par by level: part-score +0.90 (10) · game -1.62 (8) · slam -9.00 (2)

By role: declaring -0.86/bd (-3.21 vs par · 14) · defending +3.55/bd (+3.83 vs par · 6)

By vulnerability: vulnerable -0.27/bd (-3.40 vs par · 10) · not vulnerable +1.20/bd (+1.20 vs par · 10)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 6C.YehV.Pangkerego – H.ManoppoOpen10+15.1+1.51-0.70
Round 11C.YehW.Coyle – V.SilverstoneOpen10-5.8-0.58-1.50

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
+9.2Round 6ASINDO MAKASSAR283NT♠4-3+11
+7.9Round 6ASINDO MAKASSAR293NT♣4=+0
+7.7Round 11SCOTLAND163♥♣4+1+10
+6.6Round 11SCOTLAND113♠♦A-2+13
+4.1Round 11SCOTLAND152♦♣2+2+1
+3.5Round 11SCOTLAND205♣♠K=+3
+2.7Round 6ASINDO MAKASSAR253♥♦A-1+0
+2.4Round 6ASINDO MAKASSAR244♥♦A-1+5
+1.9Round 6ASINDO MAKASSAR302♠♦Q+1+0
+1.4Round 6ASINDO MAKASSAR273NT♦3-2-5
+1.4Round 11SCOTLAND171♥♦4+1+8
+1.3Round 6ASINDO MAKASSAR214♠♣A+1+0
+1.1Round 11SCOTLAND141♠♣10+1+0
-0.2Round 6ASINDO MAKASSAR231NT♠9+1+0
-2.1Round 11SCOTLAND183♠♣K-2-11
-5.3Round 6ASINDO MAKASSAR226♣x♦A-2-5
-6.2Round 6ASINDO MAKASSAR264♠♥2+2-13
-7.9Round 11SCOTLAND194♠♥7+2-14
-9.1Round 11SCOTLAND133♦♠J-1-12
-11.1Round 11SCOTLAND126♥♦A-1-13