ZEN Derek · HK ZEN

122rank
+7.6Butler · 35 bds
+0.22per board
±3.8swing
+0.91vs par /bd · #49/311
+0.12adjusted /bd
Butler per round: 6.6 -6.1 6.3 -5.8 6.6by round

vs par split: bidding +1.31 · play -0.40

Strength of schedule: opponents averaged -0.10/bd (an easy draw) → opponent-adjusted +0.12/bd

Card play — on target: opening leads 100.0% #1 of 310 · declarer play 83.3% #97 of 310 · defence 100.0% #1 of 311

Card play by contract type — on target
vs NTvs a suit
Opening leads100.0% (1)100.0% (7)
Declarer play100.0% (1)80.0% (5)
Defence100.0% (3)100.0% (16)

Opening leads by suit led: ♠ 100.0% (3) · ♥ 100.0% (1) · ♦ 100.0% (1) · ♣ 100.0% (3)

vs par by strain: NT +4.75 (4) · a suit +0.42 (31)

vs par by level: part-score +1.26 (19) · game -0.21 (14) · slam +5.50 (2)

By role: declaring +0.81/bd (-1.19 vs par · 16) · defending -0.28/bd (+2.68 vs par · 19)

By vulnerability: vulnerable +1.24/bd (+3.23 vs par · 17) · not vulnerable -0.75/bd (-1.28 vs par · 18)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2S.WanR.Chan – S.HuangOpen7+6.6+0.94+3.57
Round 3S.WanU.Kasimir – P.JokischOpen7-6.1-0.87-0.57
Round 5S.WanJ.Wang – H.CuiOpen7+6.3+0.90+1.86
Round 6S.WanE.Lindqvist – B.BrogelandClosed7-5.8-0.83-1.43
Round 8S.WanM.Karmarkar – B.DeyClosed7+6.6+0.94+1.14

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
+12.2Round 2JILINDINGYUAN102♠x♣K=+15
+6.7Round 8AZURE223♥x♠J-2+5
+5.2Round 2JILINDINGYUAN134♠♥5+2+17
+4.1Round 6GILLIS103NT♥K-1+6
+3.9Round 3KASIMIRS DREAMTEAM174♠♣8-1+8
+3.7Round 6GILLIS132♠♦Q+2+2
+3.7Round 8AZURE262♦♥Q+2+11
+3.6Round 5SHAANXI ELECTRIC POWER DESIGN53♠♥7+2-6
+3.2Round 5SHAANXI ELECTRIC POWER DESIGN33NT♦10+1+1
+2.2Round 6GILLIS84♦♥4=+1
+2.1Round 5SHAANXI ELECTRIC POWER DESIGN44♠♦K-1+6
+1.4Round 5SHAANXI ELECTRIC POWER DESIGN22♠♥K+1+0
+1.4Round 8AZURE232♣♠K=-1
+1.0Round 3KASIMIRS DREAMTEAM214♣♣A+1+10
+0.4Round 8AZURE253♣♠J-1+1
+0.3Round 3KASIMIRS DREAMTEAM154♥♠10+2-11
+0.1Round 5SHAANXI ELECTRIC POWER DESIGN14♥♣A=+1
+0.1Round 6GILLIS143♠♥3+1+2
+0.0Round 2JILINDINGYUAN81NT♠2=+1
-0.9Round 8AZURE284♠♣7=-3
-1.0Round 5SHAANXI ELECTRIC POWER DESIGN66NT♣5=+11
-1.2Round 2JILINDINGYUAN112♠♣K+1-1
-1.5Round 3KASIMIRS DREAMTEAM183♦♣5-2-5
-2.0Round 2JILINDINGYUAN123♦♣2-2+0
-2.1Round 3KASIMIRS DREAMTEAM203♣♦4=+0
-2.2Round 8AZURE243♣♥3-1-5
-2.3Round 3KASIMIRS DREAMTEAM194♠♦K=-6
-2.5Round 8AZURE274♠♦Q=+0
-3.1Round 5SHAANXI ELECTRIC POWER DESIGN76♥♠A=+0
-3.2Round 2JILINDINGYUAN142♠♥2+1-1
-3.3Round 6GILLIS94♥x♦K-1-7
-4.1Round 6GILLIS112♥♠5=-5
-4.4Round 2JILINDINGYUAN94♠♦J-1-6
-5.4Round 3KASIMIRS DREAMTEAM164♥♣5=+0
-8.5Round 6GILLIS125♥x♠2+1-9