LAM Cheng Yen · SINGAPORE

323rank
+5.1Butler · 70 bds
+0.07per board
±3.7swing
-1.24vs par /bd · #671/695
+0.02adjusted /bd
Butler per round: 11.2 -19.2 -10.3 6.9 15.5 -3.4 4.4by round

vs par split: bidding -1.03 · play -0.21

Strength of schedule: opponents averaged -0.05/bd (an easy draw) → opponent-adjusted +0.02/bd

Card play — on target: opening leads 82.4% #259 of 694 · declarer play 79.2% #199 of 694 · defence 92.9% #31 of 695

Card play by contract type — on target
vs NTvs a suit
Opening leads75.0% (4)84.6% (13)
Declarer play87.5% (8)75.0% (16)
Defence100.0% (9)89.5% (19)

Opening leads by suit led: ♠ 100.0% (4) · ♥ 100.0% (6) · ♦ 100.0% (1) · ♣ 50.0% (6)

vs par by strain: NT -1.04 (24) · a suit -1.35 (46)

vs par by level: part-score -0.58 (31) · game -1.53 (36) · slam -4.67 (3)

By role: declaring -0.52/bd (-3.88 vs par · 42) · defending +0.96/bd (+2.71 vs par · 28)

By vulnerability: vulnerable +0.54/bd (-1.26 vs par · 35) · not vulnerable -0.39/bd (-1.23 vs par · 35)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1K.NgH.Tripa – M.SirbOpen10+11.2+1.12+1.30
Round 2K.NgR.Van Leeuwen – O.JanssensOpen10-19.2-1.92-2.70
Round 6K.NgR.Vigil – G.MooneyOpen10-10.3-1.03-1.50
Round 10K.NgS.Cocheme – T.GauldOpen10+6.9+0.69-0.40
Round 11K.NgH.Christie – P.BuchenOpen10+15.5+1.55-1.70
Round 12K.NgY.Wang – D.LuOpen10-3.4-0.34-5.10
Round 13K.NgM.Mevius – M.TermaatClosed10+4.4+0.44+1.40

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
+9.3Round 12CHINA TRINERGY297NT♣7=+0
+7.6Round 10BOWLES24♠♠10=+0
+6.2Round 2WIJMAN205♠x♣3-1-7
+6.1Round 12CHINA TRINERGY234♥♣5+1+1
+5.8Round 6ARGENTINA303♠x♥3-2+5
+5.4Round 11AUSTRALIA SENIORS116NT♦7=+0
+5.2Round 11AUSTRALIA SENIORS124♠♥9-1+10
+5.1Round 1ALMA13NT♣K-5+8
+4.7Round 13ZEEROB WIT33NT♠A-2+7
+3.9Round 2WIJMAN124♥♥J-1+5
+3.9Round 10BOWLES93NT♠Q-2+8
+3.6Round 11AUSTRALIA SENIORS143NT♥9=-1
+3.6Round 13ZEEROB WIT82♣x♣5-2-3
+3.3Round 11AUSTRALIA SENIORS175♥♣10-2+5
+3.3Round 11AUSTRALIA SENIORS184♠♣K=+3
+3.2Round 1ALMA24♥♠4-2-1
+3.2Round 10BOWLES43♠♦2=+7
+2.5Round 10BOWLES31NT♦2+1+1
+2.2Round 6ARGENTINA222♠♥3-1+10
+2.1Round 1ALMA73NT♠8=+0
+1.8Round 1ALMA82♥♠2-1+5
+1.8Round 1ALMA91NT♦5-1+5
+1.8Round 6ARGENTINA263♠♥5-1+0
+1.6Round 1ALMA62♠♦Q-1+11
+1.5Round 12CHINA TRINERGY274♥♠A+1+0
+1.4Round 12CHINA TRINERGY223♥♣8-1-1
+1.3Round 13ZEEROB WIT13NT♠3+2+0
+1.0Round 11AUSTRALIA SENIORS193NT♥3+2-11
+0.9Round 10BOWLES102♠♥7=+1
+0.7Round 10BOWLES13NT♠4+2+0
+0.0Round 13ZEEROB WIT23♥♠3+1-8
-0.0Round 13ZEEROB WIT93NT♣7+2+13
+0.0Round 13ZEEROB WIT101♠♦J+2+10
-0.1Round 6ARGENTINA273♣♠Q+1-7
-0.1Round 12CHINA TRINERGY283♦♥A+1+0
-0.2Round 10BOWLES82♠♣6+1-6
-0.3Round 1ALMA103♠♥K+1+1
-0.4Round 1ALMA43NT♦10+3-13
-0.4Round 11AUSTRALIA SENIORS154♥♠Q=+0
-0.4Round 13ZEEROB WIT53NT♣3=+1
-0.7Round 13ZEEROB WIT62♥♠A+1-7
-0.8Round 6ARGENTINA234♥♣Q=+1
-1.0Round 6ARGENTINA283♣♣2-1-4
-1.0Round 10BOWLES72♥♦K=-1
-1.0Round 11AUSTRALIA SENIORS204♠♣3+2-12
-1.1Round 1ALMA53♥♦K-2-3
-1.2Round 12CHINA TRINERGY213NT♠4=-13
-1.4Round 2WIJMAN165♠♥4-2+0
-1.7Round 2WIJMAN144♠♣7-2+0
-1.7Round 13ZEEROB WIT41NT♠6-1+1
-2.3Round 11AUSTRALIA SENIORS134♥♥7+1+0
-2.4Round 13ZEEROB WIT72♠♥K+1+0
-2.6Round 1ALMA33NT♥2=+0
-2.6Round 2WIJMAN151NT♦A+2+0
-2.6Round 6ARGENTINA251NT♥9-1-5
-2.6Round 11AUSTRALIA SENIORS163NT♠3-2-11
-2.7Round 2WIJMAN135♦♣A+1-13
-2.7Round 2WIJMAN182♣♠5+1+1
-3.0Round 12CHINA TRINERGY253♦♥Q+1-7
-3.2Round 10BOWLES52♥♠5+2-4
-3.4Round 6ARGENTINA243NT♦2=+1
-3.7Round 2WIJMAN112♦♣Q+1-5
-4.1Round 12CHINA TRINERGY265♦♣A-1-6
-5.2Round 6ARGENTINA292♠♣6+2-10
-5.3Round 12CHINA TRINERGY245♥♦K+1-11
-5.4Round 2WIJMAN173♦x♥J-2-5
-7.0Round 6ARGENTINA213NT♦6-2-6
-7.5Round 10BOWLES63NT♦6-1-10
-8.0Round 12CHINA TRINERGY306♥♦K-1-14
-9.1Round 2WIJMAN194♠♥J=-3