NG Kelvin · SINGAPORE

563rank
-47.8Butler · 140 bds
-0.34per board
±4.0swing
-0.87vs par /bd · #624/695
-0.32adjusted /bd
Butler per round: 11.2 -19.2 1.2 -36.6 6.9 -10.3 -19.9 -12.3 6.9 15.5 -3.4 4.4 3.4 4.4by round

vs par split: bidding -0.44 · play -0.43

Strength of schedule: opponents averaged +0.02/bd (an average draw) → opponent-adjusted -0.32/bd

Card play — on target: opening leads 82.1% #267 of 694 · declarer play 69.2% #512 of 694 · defence 85.2% #285 of 695

Card play by contract type — on target
vs NTvs a suit
Opening leads88.9% (9)78.9% (19)
Declarer play36.4% (11)82.1% (28)
Defence81.2% (16)86.7% (45)

Opening leads by suit led: ♠ 83.3% (6) · ♥ 100.0% (7) · ♦ 80.0% (10) · ♣ 60.0% (5)

vs par by strain: NT -1.35 (37) · a suit -0.70 (103)

vs par by level: part-score -0.41 (54) · game -1.00 (80) · slam -3.33 (6)

By role: declaring -0.88/bd (-3.52 vs par · 79) · defending +0.36/bd (+2.56 vs par · 61)

By vulnerability: vulnerable -0.45/bd (-1.17 vs par · 70) · not vulnerable -0.24/bd (-0.57 vs par · 70)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1C.LamH.Tripa – M.SirbOpen10+11.2+1.12+1.30
Round 2C.LamR.Van Leeuwen – O.JanssensOpen10-19.2-1.92-2.70
Round 3K.FongT.Jiang – D.WangClosed10+1.2+0.12+0.20
Round 4K.FongD.Williams – J.WilliamsClosed10-36.6-3.66-2.70
Round 5K.FongG.Dragt – E.De GrootClosed10+6.9+0.69+1.50
Round 6C.LamR.Vigil – G.MooneyOpen10-10.3-1.03-1.50
Round 7K.FongR.Ritmeijer – R.BrantsmaClosed10-19.9-1.99-0.10
Round 9K.FongP.Noordeman – J.WormClosed10-12.3-1.23-0.80
Round 10C.LamS.Cocheme – T.GauldOpen10+6.9+0.69-0.40
Round 11C.LamH.Christie – P.BuchenOpen10+15.5+1.55-1.70
Round 12C.LamY.Wang – D.LuOpen10-3.4-0.34-5.10
Round 13C.LamM.Mevius – M.TermaatClosed10+4.4+0.44+1.40
Round 14K.FongB.Paping – J.FeringaClosed10+3.4+0.34-1.20
Round 15K.FongJ.Sabate – G.GodedClosed10+4.4+0.44-0.40

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
+8.7Round 3PAN CHINA225♣♥A-4+11
+8.6Round 14ZEEROB BLAUW155♦x♠K-2+12
+7.6Round 10BOWLES24♠♠10=+0
+7.5Round 5BITES193♠x♣J-2+3
+7.3Round 15LANTARON213♥♥3+2+10
+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
+4.9Round 5BITES143NT♠A-3+6
+4.7Round 13ZEEROB WIT33NT♠A-2+7
+4.4Round 14ZEEROB BLAUW165♦♥A+1+3
+3.9Round 2WIJMAN124♥♥J-1+5
+3.9Round 3PAN CHINA213NT♠7+3+3
+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 3PAN CHINA284♥x♦10-1+6
+3.2Round 10BOWLES43♠♦2=+7
+3.1Round 9DE RUITER242♠♦3=+0
+3.0Round 5BITES156♥♦10=+0
+2.8Round 4VALLON94♥♦A-1+6
+2.5Round 3PAN CHINA243♠♥9-2+0
+2.5Round 9DE RUITER214♦♠A-1+1
+2.5Round 10BOWLES31NT♦2+1+1
+2.4Round 5BITES134♠♦7+3+12
+2.2Round 6ARGENTINA222♠♥3-1+10
+2.2Round 15LANTARON235♣♥10-1+6
+2.1Round 1ALMA73NT♠8=+0
+2.1Round 9DE RUITER303♦♦Q-2+7
+1.8Round 1ALMA82♥♠2-1+5
+1.8Round 1ALMA91NT♦5-1+5
+1.8Round 6ARGENTINA263♠♥5-1+0
+1.8Round 14ZEEROB BLAUW112♦♥K+1+0
+1.6Round 1ALMA62♠♦Q-1+11
+1.5Round 12CHINA TRINERGY274♥♠A+1+0
+1.4Round 12CHINA TRINERGY223♥♣8-1-1
+1.3Round 7ONSTEIN 2104♥♦10+2+17
+1.3Round 13ZEEROB WIT13NT♠3+2+0
+1.2Round 15LANTARON274♠♦K=-1
+1.2Round 15LANTARON303NT♣2=-2
+1.1Round 3PAN CHINA254♠♦Q-1-1
+1.0Round 5BITES124♥♦2=+1
+1.0Round 11AUSTRALIA SENIORS193NT♥3+2-11
+1.0Round 15LANTARON294♠♥5+1+0
+0.9Round 10BOWLES102♠♥7=+1
+0.7Round 10BOWLES13NT♠4+2+0
+0.6Round 7ONSTEIN 213♠♦5+1+6
+0.6Round 9DE RUITER284♥♠K+2-12
+0.5Round 7ONSTEIN 252♥♣3=+1
+0.4Round 3PAN CHINA233♦♣5-1+1
+0.4Round 9DE RUITER224♥♠Q+1+0
+0.3Round 5BITES114♠♠10=+0
+0.2Round 7ONSTEIN 223NT♣Q+2+1
+0.2Round 14ZEEROB BLAUW134♥♠Q+1-13
+0.1Round 14ZEEROB BLAUW193NT♣7+2+0
+0.0Round 4VALLON83♦♦8-1-2
+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
-0.1Round 14ZEEROB BLAUW123♠♦A-1+2
-0.1Round 15LANTARON224♠♥3=+0
-0.2Round 10BOWLES82♠♣6+1-6
-0.3Round 1ALMA103♠♥K+1+1
-0.3Round 3PAN CHINA292♠♣K-1+1
-0.3Round 14ZEEROB BLAUW143NT♠4=-11
-0.4Round 1ALMA43NT♦10+3-13
-0.4Round 4VALLON44♥♣4+1-1
-0.4Round 11AUSTRALIA SENIORS154♥♠Q=+0
-0.4Round 13ZEEROB WIT53NT♣3=+1
-0.5Round 7ONSTEIN 233NT♥8+1-1
-0.5Round 15LANTARON283NT♥4+2+0
-0.7Round 7ONSTEIN 274♠♥K=+0
-0.7Round 13ZEEROB WIT62♥♠A+1-7
-0.7Round 14ZEEROB BLAUW176♣♦8=+11
-0.8Round 5BITES165♥♠2=+0
-0.8Round 6ARGENTINA234♥♣Q=+1
-1.0Round 4VALLON23♠♣K-2+6
-1.0Round 6ARGENTINA283♣♣2-1-4
-1.0Round 10BOWLES72♥♦K=-1
-1.0Round 11AUSTRALIA SENIORS204♠♣3+2-12
-1.1Round 1ALMA53♥♦K-2-3
-1.1Round 9DE RUITER293NT♠J+1+1
-1.2Round 12CHINA TRINERGY213NT♠4=-13
-1.2Round 15LANTARON264♠♠J+1-1
-1.4Round 2WIJMAN165♠♥4-2+0
-1.4Round 15LANTARON253♠♦K=-10
-1.7Round 2WIJMAN144♠♣7-2+0
-1.7Round 13ZEEROB WIT41NT♠6-1+1
-2.1Round 7ONSTEIN 293NT♥Q=+0
-2.3Round 4VALLON73♥♣J-2-3
-2.3Round 11AUSTRALIA SENIORS134♥♥7+1+0
-2.4Round 13ZEEROB WIT72♠♥K+1+0
-2.5Round 5BITES173♠♣2-3-1
-2.5Round 5BITES183♣♣2-1-6
-2.6Round 1ALMA33NT♥2=+0
-2.6Round 2WIJMAN151NT♦A+2+0
-2.6Round 6ARGENTINA251NT♥9-1-5
-2.6Round 7ONSTEIN 243♥♦J-1+0
-2.6Round 11AUSTRALIA SENIORS163NT♠3-2-11
-2.7Round 2WIJMAN135♦♣A+1-13
-2.7Round 2WIJMAN182♣♠5+1+1
-2.8Round 9DE RUITER253♥♣K=-1
-3.0Round 12CHINA TRINERGY253♦♥Q+1-7
-3.2Round 10BOWLES52♥♠5+2-4
-3.3Round 9DE RUITER273NT♦Q+2-4
-3.4Round 6ARGENTINA243NT♦2=+1
-3.7Round 2WIJMAN112♦♣Q+1-5
-3.7Round 14ZEEROB BLAUW203NT♣2-1-12
-4.1Round 12CHINA TRINERGY265♦♣A-1-6
-4.4Round 4VALLON55♣♥10=+0
-4.9Round 3PAN CHINA303♥♦10-4-7
-5.1Round 7ONSTEIN 284♠♥A+2-11
-5.2Round 6ARGENTINA292♠♣6+2-10
-5.3Round 12CHINA TRINERGY245♥♦K+1-11
-5.3Round 15LANTARON243♠♥5+2-6
-5.4Round 2WIJMAN173♦x♥J-2-5
-5.4Round 4VALLON65♥x♦K-4-4
-5.6Round 4VALLON35♥♦A-2-7
-6.1Round 9DE RUITER234♥♦6-1-12
-6.4Round 5BITES205♦♠2=+0
-6.5Round 3PAN CHINA273NT♦7=-6
-6.9Round 3PAN CHINA262♠♦K-1-6
-6.9Round 14ZEEROB BLAUW185♥♦7=-4
-7.0Round 4VALLON15♥x♥6-2-5
-7.0Round 6ARGENTINA213NT♦6-2-6
-7.5Round 10BOWLES63NT♦6-1-10
-7.7Round 9DE RUITER264♥♣10+3+12
-8.0Round 12CHINA TRINERGY306♥♦K-1-14
-9.1Round 2WIJMAN194♠♥J=-3
-11.5Round 7ONSTEIN 264♥x♣A+1-14
-13.3Round 4VALLON107♠♠10-1-17