🇨🇦 LUO Jianfeng · CANADA

71rank
+19.2Butler · 256 bds
+0.07per board
±4.8swing
+0.66vs par /bd · #21/138
+0.03adjusted /bd
Butler per round: -7.7 -9.6 -3.5 -6.3 7.7 20.3 -15.4 6.6 -1.7 8.1 61.3 25.8 -9.5 7.4 -32.3 -32by round

vs par split: bidding +0.54 · play +0.11

Strength of schedule: opponents averaged -0.04/bd (an average draw) → opponent-adjusted +0.03/bd

Card play — on target: opening leads 83.3% #43 of 138 · declarer play 84.0% #13 of 138 · defence 81.5% #114 of 138

Card play by contract type — on target
vs NTvs a suit
Opening leads77.3% (22)86.0% (50)
Declarer play81.2% (16)85.3% (34)
Defence81.4% (43)81.5% (92)

Opening leads by suit led: ♠ 84.2% (19) · ♥ 95.2% (21) · ♦ 92.3% (13) · ♣ 63.2% (19)

vs par by strain: NT +0.84 (83) · a suit +0.55 (172)

vs par by level: part-score +0.24 (82) · game +0.60 (156) · slam +3.00 (17)

By role: declaring -0.03/bd (-1.99 vs par · 121) · defending +0.16/bd (+3.04 vs par · 135)

By vulnerability: vulnerable -0.20/bd (+0.20 vs par · 128) · not vulnerable +0.34/bd (+1.12 vs par · 128)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2C.HeD.Hachem – A.KhedrOpen16-7.7-0.48-0.50
Round 3C.HeR.Mihai – G.MihaiClosed16-9.6-0.60+0.44
Round 5C.HeL.Ferrero – E.Juchimowicz PuglieseClosed16-3.5-0.22+0.75
Round 6C.HeJ.Dai – Y.ZhangOpen16-6.3-0.39+2.38
Round 8C.HeS.Elabyari – MEKKY AMRClosed16+7.7+0.48+1.25
Round 9C.HeK.Fan – P.TsaiOpen16+20.3+1.27+0.06
Round 11C.HeJ.Zochowska – P.SchmidtClosed16-15.4-0.96-0.31
Round 12C.HeA.Rosenthal – M.Zur-CampanileOpen16+6.6+0.41-0.25
Round 14C.HeA.Labaere – V.Carcassonne-LabaereClosed16-1.7-0.11-0.62
Round 15C.HeP.Gruenke – M.EggelingClosed16+8.1+0.51+0.25
Round 17C.HeP.Tan – S.TanOpen16+61.3+3.83+5.06
Round 18C.HeN.Sebti – A.TaziOpen16+25.8+1.61+1.56
Round 20C.HeS.Buus Thomsen – P.JepsenOpen16-9.5-0.59+0.62
Round 21C.HeP.Butryn – N.SakowskaClosed16+7.4+0.46+2.25
Round 22C.HeL.Travis – P.MarkeyOpen16-32.3-2.02+1.06
Round 23C.HeB.Satyanarayana – K.NadarOpen16-32.0-2.00-3.44

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
+14.6Round 9🇹🇼 CHINESE TAIPEI35♣x♦A-4+14
+12.4Round 2🇪🇬 EGYPT256♥♦6-1+13
+11.8Round 5🇦🇷 ARGENTINA12♣x♠K=+15
+11.8Round 17🇸🇬 SINGAPORE74♠x♥A-4+14
+11.3Round 9🇹🇼 CHINESE TAIPEI103NT♥3=+12
+11.0Round 17🇸🇬 SINGAPORE164♠♥4-2+14
+10.0Round 18🇲🇦 MOROCCO213♦♣J+2+11
+9.7Round 9🇹🇼 CHINESE TAIPEI164♥♠A-1+10
+9.3Round 6🇨🇳 CHINA216♠x♥5-1+17
+9.1Round 18🇲🇦 MOROCCO273NT♦10+2+2
+9.0Round 12🇺🇸 USA2283NT♦7-2+8
+9.0Round 14🇧🇪 BELGIUM224♠♣K-2+7
+8.5Round 17🇸🇬 SINGAPORE26NT♠4=+0
+8.1Round 2🇪🇬 EGYPT284♠x♥K=+14
+8.1Round 9🇹🇼 CHINESE TAIPEI24♠♦6-1+12
+8.1Round 15🇩🇪 GERMANY93NT♣5=+7
+8.1Round 20🇩🇰 DENMARK36♥♦K-2+13
+8.0Round 17🇸🇬 SINGAPORE31NTx♥3+2+11
+7.7Round 11🇫🇷 FRANCE85♠x♦A=+8
+7.6Round 14🇧🇪 BELGIUM233NT♠4-1+12
+7.3Round 17🇸🇬 SINGAPORE56NT♦Q-1+14
+6.9Round 5🇦🇷 ARGENTINA23♣♥K-2+0
+6.9Round 21🇵🇱 POLAND254♥♦3=+0
+6.7Round 6🇨🇳 CHINA233NT♦Q-2+13
+6.3Round 8🇦🇪 UAE176♣♠7=+3
+6.2Round 15🇩🇪 GERMANY125♣x♦J=+9
+6.1Round 20🇩🇰 DENMARK106♣♥K-1+12
+5.7Round 3🇷🇴 ROMANIA133♠♦Q=+6
+5.7Round 21🇵🇱 POLAND243NT♥9=+7
+5.6Round 21🇵🇱 POLAND283NT♦5-1+12
+5.4Round 8🇦🇪 UAE323NT♥9-1+12
+5.4Round 17🇸🇬 SINGAPORE153NT♣7=+10
+5.3Round 8🇦🇪 UAE304♠x♥A-1+5
+5.3Round 18🇲🇦 MOROCCO192♦♠4+3+6
+5.3Round 21🇵🇱 POLAND203♠♥A+1+10
+5.2Round 21🇵🇱 POLAND185♦x♣K=+4
+5.2Round 22🇦🇺 AUSTRALIA123NT♣3=+0
+5.1Round 18🇲🇦 MOROCCO264♥♠3+1+0
+5.0Round 5🇦🇷 ARGENTINA84♠x♥5-1+6
+4.9Round 11🇫🇷 FRANCE94♠x♣A=+5
+4.7Round 14🇧🇪 BELGIUM305♦x♥A-1+9
+4.7Round 17🇸🇬 SINGAPORE44♠♦A=+0
+4.7Round 17🇸🇬 SINGAPORE144♠♣A-2+5
+4.4Round 23🇮🇳 INDIA285♥♠6-1+12
+4.3Round 8🇦🇪 UAE214♠x♥K-2+10
+4.3Round 22🇦🇺 AUSTRALIA165♥x♦3-1+0
+4.1Round 12🇺🇸 USA2262NT♥A+1+1
+4.1Round 15🇩🇪 GERMANY64♥♠Q=-1
+4.0Round 3🇷🇴 ROMANIA163NT♥K+1+4
+4.0Round 15🇩🇪 GERMANY103♥♣A+1+10
+3.8Round 2🇪🇬 EGYPT215♣x♠6-4-12
+3.8Round 9🇹🇼 CHINESE TAIPEI72♥♣7=+6
+3.7Round 12🇺🇸 USA2203NT♠5+1+0
+3.7Round 17🇸🇬 SINGAPORE83♥♦K-1+5
+3.5Round 8🇦🇪 UAE184♠♥5-2+5
+3.4Round 8🇦🇪 UAE284♥♦A-1+5
+3.3Round 3🇷🇴 ROMANIA113NT♠10+2+2
+3.3Round 5🇦🇷 ARGENTINA165♠x♥A-1+12
+3.3Round 12🇺🇸 USA2253NT♥7-1+5
+3.2Round 8🇦🇪 UAE253NT♥9-2+7
+3.1Round 21🇵🇱 POLAND304♠♣8-3+6
+3.0Round 3🇷🇴 ROMANIA22♠♥J+2+8
+3.0Round 14🇧🇪 BELGIUM193NT♣Q+2+1
+3.0Round 15🇩🇪 GERMANY53NT♥6+2+0
+2.7Round 3🇷🇴 ROMANIA142NT♠K-1+5
+2.7Round 17🇸🇬 SINGAPORE102♠♠A=+0
+2.7Round 23🇮🇳 INDIA172♠♦2-1+3
+2.5Round 22🇦🇺 AUSTRALIA32NT♠4-1+11
+2.3Round 11🇫🇷 FRANCE113♦♣5=+0
+2.2Round 6🇨🇳 CHINA253NT♣4-2+5
+2.2Round 17🇸🇬 SINGAPORE115♣♠10=-2
+2.1Round 18🇲🇦 MOROCCO283NT♠6+1-1
+2.0Round 18🇲🇦 MOROCCO294♠♥6-1+12
+2.0Round 21🇵🇱 POLAND174♥♣5+2+11
+2.0Round 21🇵🇱 POLAND323NT♦10+1+4
+1.9Round 12🇺🇸 USA2223♥♠7-1+5
+1.8Round 17🇸🇬 SINGAPORE135♣x♣5-1+8
+1.7Round 3🇷🇴 ROMANIA85♣♣2+2+11
+1.7Round 3🇷🇴 ROMANIA104♠♥4-1+6
+1.7Round 9🇹🇼 CHINESE TAIPEI56♥♠9+1-11
+1.6Round 8🇦🇪 UAE271NT♣10-1+2
+1.5Round 20🇩🇰 DENMARK23NT♠3+2+0
+1.4Round 9🇹🇼 CHINESE TAIPEI44♣♠K-1-1
+1.4Round 23🇮🇳 INDIA271NT♥7-4-5
+1.3Round 5🇦🇷 ARGENTINA54♠♣10+1+0
+1.3Round 15🇩🇪 GERMANY33♦♣5-1-6
+1.2Round 3🇷🇴 ROMANIA13NT♣7=+2
+1.2Round 11🇫🇷 FRANCE155♠♥9+1+11
+1.2Round 17🇸🇬 SINGAPORE12♠♥A+1+1
+1.1Round 6🇨🇳 CHINA292♥♠5+1+1
+1.1Round 9🇹🇼 CHINESE TAIPEI143NT♣10-1+5
+1.1Round 15🇩🇪 GERMANY113NT♠3-1+5
+1.1Round 18🇲🇦 MOROCCO242♠♥6=+0
+1.1Round 20🇩🇰 DENMARK125♦♣K-2+5
+1.0Round 8🇦🇪 UAE191NT♠Q+1+1
+1.0Round 11🇫🇷 FRANCE124♠♥Q-1-2
+1.0Round 18🇲🇦 MOROCCO181NT♠K=-1
+1.0Round 20🇩🇰 DENMARK133NT♠Q+1+0
+0.9Round 8🇦🇪 UAE292♠♣J+3+2
+0.9Round 12🇺🇸 USA2174♠♥J+1+0
+0.9Round 12🇺🇸 USA2295♣♠4=+3
+0.9Round 14🇧🇪 BELGIUM325♠♣A=+0
+0.9Round 17🇸🇬 SINGAPORE92♥♦K-2+1
+0.8Round 6🇨🇳 CHINA203♦♠9+1+10
+0.7Round 2🇪🇬 EGYPT224♥♦6=+0
+0.7Round 2🇪🇬 EGYPT245♦♠J=-1
+0.7Round 6🇨🇳 CHINA193NT♣J+2+10
+0.7Round 6🇨🇳 CHINA323NT♣3+1+11
+0.6Round 20🇩🇰 DENMARK14♥♦Q+1+8
+0.6Round 21🇵🇱 POLAND314♠♥8=-1
+0.5Round 2🇪🇬 EGYPT193NT♥6+1+0
+0.5Round 15🇩🇪 GERMANY12♥♠5=+0
+0.5Round 15🇩🇪 GERMANY151NT♥5=+1
+0.4Round 5🇦🇷 ARGENTINA94♠♦10=+1
+0.4Round 12🇺🇸 USA2214♠♦J=-1
+0.4Round 12🇺🇸 USA2273NT♦3=+0
+0.4Round 14🇧🇪 BELGIUM253NT♥3+3-10
+0.4Round 23🇮🇳 INDIA323♠♥5=+7
+0.3Round 8🇦🇪 UAE311♣♦10=-1
+0.3Round 12🇺🇸 USA2233♣♣2-1-11
+0.3Round 18🇲🇦 MOROCCO324♠♣Q-1+10
+0.3Round 22🇦🇺 AUSTRALIA143NT♠2+2+11
+0.2Round 6🇨🇳 CHINA284♥♠6=+0
+0.2Round 22🇦🇺 AUSTRALIA114♥♣Q+2+14
+0.2Round 23🇮🇳 INDIA193NT♠4+2+0
+0.1Round 3🇷🇴 ROMANIA124♥♠9=+0
+0.1Round 14🇧🇪 BELGIUM182NT♠6-2+5
+0.1Round 15🇩🇪 GERMANY24♠♣4+1+0
+0.0Round 5🇦🇷 ARGENTINA64♠♣4+1-11
+0.0Round 8🇦🇪 UAE222♣♠9+3+1
+0.0Round 11🇫🇷 FRANCE13NT♣4+2-11
-0.0Round 14🇧🇪 BELGIUM212♦♠Q+2+1
+0.0Round 22🇦🇺 AUSTRALIA24♥♠6+2+11
+0.0Round 22🇦🇺 AUSTRALIA53♥♠Q+1-10
-0.1Round 23🇮🇳 INDIA303NT♠3=+0
-0.2Round 9🇹🇼 CHINESE TAIPEI91NT♠7+1+0
-0.2Round 20🇩🇰 DENMARK44♠♦2+2-13
-0.2Round 20🇩🇰 DENMARK94♠♦5=+0
-0.3Round 3🇷🇴 ROMANIA42♠♦K+2-1
-0.3Round 6🇨🇳 CHINA173NT♣J+1+1
-0.3Round 17🇸🇬 SINGAPORE66NT♠K+1+13
-0.3Round 18🇲🇦 MOROCCO252♥♣10-1+4
-0.4Round 9🇹🇼 CHINESE TAIPEI115♣♠K=+2
-0.4Round 18🇲🇦 MOROCCO204♠♣K+1+0
-0.4Round 22🇦🇺 AUSTRALIA44♥♣K+1+0
-0.5Round 2🇪🇬 EGYPT201NT♠7+1+1
-0.5Round 11🇫🇷 FRANCE44♠♦3-1-1
-0.5Round 11🇫🇷 FRANCE135♠♣K+1+12
-0.5Round 18🇲🇦 MOROCCO313NT♠J=-1
-0.6Round 11🇫🇷 FRANCE33NT♠4+1+0
-0.6Round 21🇵🇱 POLAND193♥♣K+1+6
-0.6Round 22🇦🇺 AUSTRALIA133♦♠K+1+0
-0.7Round 11🇫🇷 FRANCE103♠♦2=+0
-0.7Round 18🇲🇦 MOROCCO302♠♣3=+0
-0.8Round 5🇦🇷 ARGENTINA74♥♥5+1+0
-0.8Round 12🇺🇸 USA2242NT♠7+1+0
-0.8Round 14🇧🇪 BELGIUM291NT♥7=+1
-0.8Round 15🇩🇪 GERMANY135♦♥K+1+10
-0.9Round 5🇦🇷 ARGENTINA153NT♠4+2-12
-0.9Round 6🇨🇳 CHINA274♥♠K+1+0
-0.9Round 21🇵🇱 POLAND263NT♥7+1-1
-1.0Round 20🇩🇰 DENMARK144♣♥A+1+6
-1.1Round 2🇪🇬 EGYPT182♦♣2=+1
-1.2Round 2🇪🇬 EGYPT313NT♥5+2+0
-1.2Round 22🇦🇺 AUSTRALIA64♥♦7+2-11
-1.3Round 6🇨🇳 CHINA265♦♠J+1-1
-1.3Round 14🇧🇪 BELGIUM263♥♣Q=-7
-1.3Round 23🇮🇳 INDIA215♣♠4-1-5
-1.4Round 12🇺🇸 USA2194♠♥K+1-1
-1.4Round 12🇺🇸 USA2312♠♣3+2-6
-1.5Round 6🇨🇳 CHINA243NT♠A+2-1
-1.6Round 3🇷🇴 ROMANIA32♠♦5=+0
-1.7Round 2🇪🇬 EGYPT23Pass+4
-1.9Round 18🇲🇦 MOROCCO231NT♠4-1-5
-1.9Round 22🇦🇺 AUSTRALIA84♥♠5-1-5
-2.1Round 2🇪🇬 EGYPT173♠♦Q-1-3
-2.4Round 12🇺🇸 USA2183♦♥A-2+0
-2.4Round 23🇮🇳 INDIA314♥♠5+1-11
-2.5Round 3🇷🇴 ROMANIA62♦♥8+2+0
-2.5Round 14🇧🇪 BELGIUM312♠♦3+2-1
-2.5Round 20🇩🇰 DENMARK63♥♣9-2+0
-2.6Round 2🇪🇬 EGYPT324♠♥10+1+0
-2.6Round 5🇦🇷 ARGENTINA104♥♦J=+0
-2.7Round 18🇲🇦 MOROCCO172NT♠Q=+1
-2.8Round 14🇧🇪 BELGIUM202♦♥K-2-3
-2.8Round 22🇦🇺 AUSTRALIA11NT♠Q+1-1
-2.9Round 11🇫🇷 FRANCE64♥♦K-1-5
-2.9Round 14🇧🇪 BELGIUM284♥♠K-1-6
-3.0Round 5🇦🇷 ARGENTINA123NT♠8+1-1
-3.0Round 15🇩🇪 GERMANY44♥♦K-1-12
-3.0Round 20🇩🇰 DENMARK112♥♥8-2+1
-3.1Round 5🇦🇷 ARGENTINA144♣♠K+2+13
-3.1Round 14🇧🇪 BELGIUM172♥♦7+3-6
-3.1Round 20🇩🇰 DENMARK154♣♠5=-6
-3.1Round 20🇩🇰 DENMARK163NT♥3=+0
-3.1Round 21🇵🇱 POLAND274♠♥A+1-1
-3.2Round 9🇹🇼 CHINESE TAIPEI63NT♥5-1-6
-3.3Round 9🇹🇼 CHINESE TAIPEI14♠x♥A-1-5
-3.3Round 23🇮🇳 INDIA243♠♥A=-6
-3.4Round 14🇧🇪 BELGIUM272♥♣7=+0
-3.5Round 3🇷🇴 ROMANIA93NT♣5=-13
-3.5Round 21🇵🇱 POLAND236NT♥4=+13
-3.6Round 20🇩🇰 DENMARK84♥♣2-1-4
-3.6Round 23🇮🇳 INDIA294♠♥Q+2-13
-3.7Round 5🇦🇷 ARGENTINA41NT♦2-1-5
-3.7Round 11🇫🇷 FRANCE23♣♠Q-2-3
-3.7Round 15🇩🇪 GERMANY144♠♦7-2-6
-3.7Round 18🇲🇦 MOROCCO222NT♦J-2-13
-3.8Round 6🇨🇳 CHINA224♠♥5-1-13
-4.0Round 8🇦🇪 UAE243♠♣Q+1-6
-4.1Round 5🇦🇷 ARGENTINA131NT♣4+1-6
-4.1Round 9🇹🇼 CHINESE TAIPEI84♠♣K=-3
-4.3Round 8🇦🇪 UAE233NT♦2+1+0
-4.3Round 15🇩🇪 GERMANY163♥♣10=-7
-4.4Round 2🇪🇬 EGYPT261NT♥5+1-6
-4.4Round 11🇫🇷 FRANCE72♥♣6=-6
-4.4Round 23🇮🇳 INDIA184♥♣7-3-12
-4.4Round 23🇮🇳 INDIA255♥♣10-3-3
-4.5Round 15🇩🇪 GERMANY73NT♦6=+0
-4.5Round 15🇩🇪 GERMANY84♠♦4-2-6
-4.5Round 22🇦🇺 AUSTRALIA153NT♣K+4+10
-4.5Round 23🇮🇳 INDIA264♥♥3=-9
-4.6Round 6🇨🇳 CHINA302♦♥3+3-7
-4.7Round 23🇮🇳 INDIA204♠♦9-1-6
-4.9Round 5🇦🇷 ARGENTINA113♠♥J=+0
-4.9Round 23🇮🇳 INDIA233♦♥K=-6
-5.0Round 2🇪🇬 EGYPT273NT♣7-2-6
-5.2Round 21🇵🇱 POLAND225♦♠8-2-13
-5.3Round 11🇫🇷 FRANCE163NT♠10+2-1
-5.3Round 20🇩🇰 DENMARK73NT♠8-1-12
-5.6Round 9🇹🇼 CHINESE TAIPEI124♥x♥K-3-12
-5.8Round 12🇺🇸 USA2303NT♦Q-4-7
-5.9Round 11🇫🇷 FRANCE147♦♣Q=+2
-5.9Round 20🇩🇰 DENMARK54♥♠2=+0
-6.0Round 3🇷🇴 ROMANIA74♠♠7=+1
-6.3Round 2🇪🇬 EGYPT304♥♣2-1-5
-6.5Round 12🇺🇸 USA2324♠♣5=+0
-6.6Round 22🇦🇺 AUSTRALIA96♥♣2+1+13
-7.0Round 9🇹🇼 CHINESE TAIPEI133NT♥K-1-12
-7.4Round 21🇵🇱 POLAND214♥♣A-2-11
-7.5Round 23🇮🇳 INDIA224♠♥A+1-1
-7.6Round 9🇹🇼 CHINESE TAIPEI154♥♥2-1-10
-7.7Round 6🇨🇳 CHINA186NT♠2-2-11
-7.9Round 6🇨🇳 CHINA312♠x♦J-3+3
-8.0Round 11🇫🇷 FRANCE56♥♥7-3-14
-8.3Round 21🇵🇱 POLAND294♠♣5=-10
-8.4Round 8🇦🇪 UAE266♦♠A+1-13
-8.6Round 3🇷🇴 ROMANIA53NT♠5+3-14
-9.0Round 2🇪🇬 EGYPT293NTx♠4+1-8
-9.0Round 22🇦🇺 AUSTRALIA105♦x♠7+1-8
-9.1Round 5🇦🇷 ARGENTINA36♠♥5=+0
-10.5Round 3🇷🇴 ROMANIA154♥♣Q=-10
-10.6Round 14🇧🇪 BELGIUM245♣x♠7-3-13
-10.8Round 8🇦🇪 UAE204♠♦A+2-13
-12.3Round 17🇸🇬 SINGAPORE126♥♣Q-1-13
-17.8Round 22🇦🇺 AUSTRALIA71NTxx♦A+3-18