MAK Kwok-Fai · HK ZEN

181rank
-7.0Butler · 42 bds
-0.17per board
±4.3swing
-1.12vs par /bd · #285/311
-0.22adjusted /bd
Butler per round: 7.8 -0.9 -5.9 -9.8 -22.6 24.4by round

vs par split: bidding -1.00 · play -0.07

Strength of schedule: opponents averaged -0.05/bd (an easy draw) → opponent-adjusted -0.22/bd

Card play — on target: opening leads 90.0% #51 of 310 · declarer play 72.7% #185 of 310 · defence 82.4% #189 of 311

Card play by contract type — on target
vs NTvs a suit
Opening leads100.0% (2)87.5% (8)
Declarer play50.0% (2)77.8% (9)
Defence66.7% (3)85.7% (14)

Opening leads by suit led: ♠ 66.7% (3) · ♥ 100.0% (2) · ♦ 100.0% (3) · ♣ 100.0% (2)

vs par by strain: NT -0.56 (9) · a suit -1.22 (32)

vs par by level: part-score +0.56 (18) · game -2.15 (20) · slam -3.67 (3)

By role: declaring -0.24/bd (-3.00 vs par · 24) · defending -0.07/bd (+1.39 vs par · 18)

By vulnerability: vulnerable -0.62/bd (-2.05 vs par · 21) · not vulnerable +0.29/bd (-0.19 vs par · 21)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1W.LaiV.Isporski – V.KovachevClosed7+7.8+1.11+1.00
Round 2W.LaiS.Bi – Y.WeiClosed7-0.9-0.13-2.86
Round 4W.LaiJ.Bian – Y.LianClosed7-5.9-0.84-2.43
Round 5W.LaiF.Zhou – L.MengClosed7-9.8-1.40-2.57
Round 7W.LaiL.Wang – Y.GongOpen7-22.6-3.23-3.29
Round 8W.LaiR.Gupta – J.SensarmaOpen7+24.4+3.49+3.43

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 8AZURE233NT♠3-3+9
+6.0Round 4CHINA HYX241NTx♣J+1+5
+5.9Round 8AZURE263NT♥6=-1
+5.1Round 2JILINDINGYUAN104♥♠K=+3
+5.1Round 8AZURE223♠♥Q-2+8
+3.4Round 1BULGARIAN ALL STARS22♦♠4+1+11
+3.2Round 2JILINDINGYUAN142♠♥2+1+1
+3.1Round 5SHAANXI ELECTRIC POWER DESIGN76♥♠A=+0
+2.7Round 7KUNMING LIJIAN154♠♥4-1+12
+2.6Round 7KUNMING LIJIAN216♠♦8=+0
+2.5Round 8AZURE274♠♦3=+0
+2.4Round 1BULGARIAN ALL STARS13NT♥4=-1
+2.2Round 8AZURE243NT♥7-1+5
+2.0Round 2JILINDINGYUAN123♦♣2-2+0
+1.9Round 1BULGARIAN ALL STARS74♥♦6-1-1
+1.7Round 1BULGARIAN ALL STARS33♠♣K-2-1
+1.0Round 5SHAANXI ELECTRIC POWER DESIGN66NT♦Q=-11
+0.9Round 8AZURE284♠♣7=+3
+0.7Round 8AZURE253♥♦7=+0
-0.0Round 1BULGARIAN ALL STARS53♠♠4-1-1
-0.0Round 4CHINA HYX283♠x♦K-2+5
-0.1Round 4CHINA HYX253NT♣Q=+0
-0.1Round 5SHAANXI ELECTRIC POWER DESIGN14♥♣A=-1
-0.4Round 5SHAANXI ELECTRIC POWER DESIGN23♥♦9-1+1
-0.5Round 1BULGARIAN ALL STARS42♥♦4+2+10
-0.6Round 7KUNMING LIJIAN192♠♥J-1-2
-0.7Round 7KUNMING LIJIAN175♥♣A-2-7
-0.8Round 2JILINDINGYUAN111♣♦4=-1
-0.9Round 4CHINA HYX274♠♥6=-11
-0.9Round 7KUNMING LIJIAN20Pass-3
-1.1Round 1BULGARIAN ALL STARS61NT♠4+2-10
-1.1Round 2JILINDINGYUAN82♦♦2-1-2
-1.3Round 4CHINA HYX262♥♣Q=+0
-2.1Round 5SHAANXI ELECTRIC POWER DESIGN44♠♦K-1-6
-3.2Round 5SHAANXI ELECTRIC POWER DESIGN33NT♣5+1-1
-4.1Round 2JILINDINGYUAN93♥x♠2-2-4
-4.7Round 4CHINA HYX222♥♦5+1-10
-4.9Round 4CHINA HYX235♣♥10-1-6
-5.2Round 2JILINDINGYUAN134♠♥5+2-17
-8.1Round 5SHAANXI ELECTRIC POWER DESIGN54♠♠2=+0
-10.9Round 7KUNMING LIJIAN164♥x♠Q=-12
-14.8Round 7KUNMING LIJIAN184♠x♥7-8-11