🇨🇳 DAI Jianming · CHINA

7rank
+131.0Butler · 224 bds
+0.58per board
±4.0swing
+0.28vs par /bd · #41/123
+0.65adjusted /bd
Butler per round: 10.7 7.7 27.1 7.4 -27 1 -4.9 26.7 5.8 0.7 26.2 31.3 0.8 17.5by round

vs par split: bidding +0.08 · play +0.20

Strength of schedule: opponents averaged +0.07/bd (a tough draw) → opponent-adjusted +0.65/bd

Card play — on target: opening leads 88.2% #11 of 123 · declarer play 74.1% #81 of 123 · defence 94.3% #1 of 123

Card play by contract type — on target
vs NTvs a suit
Opening leads100.0% (9)84.0% (25)
Declarer play60.0% (15)79.5% (39)
Defence92.0% (25)95.0% (80)

Opening leads by suit led: ♠ 100.0% (6) · ♥ 66.7% (6) · ♦ 86.7% (15) · ♣ 100.0% (7)

vs par by strain: NT +0.33 (58) · a suit +0.27 (166)

vs par by level: part-score -0.38 (88) · game +0.77 (117) · slam +0.32 (19)

By role: declaring +0.72/bd (-1.55 vs par · 119) · defending +0.43/bd (+2.36 vs par · 105)

By vulnerability: vulnerable +0.80/bd (+0.65 vs par · 112) · not vulnerable +0.37/bd (-0.09 vs par · 112)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2L.YangC.Martel – M.FleisherOpen16+10.7+0.67-0.81
Round 3L.YangK.Martens – J.AllavenaOpen16+7.7+0.48+0.00
Round 4L.YangR.Aragones – P.BonnetClosed16+27.1+1.69+0.25
Round 5L.YangJ.Rombaut – F.CombescureClosed16+7.4+0.46+0.94
Round 7L.YangG.Chagas – J.Villas-BoasOpen16-27.0-1.69-2.06
Round 9L.YangO.Rimstedt – M.RimstedtClosed16+1.0+0.06-0.06
Round 11L.YangJ.Stefanov – I.NanevOpen16-4.9-0.31-0.06
Round 12L.YangR.Tobing – T.AsbiClosed16+26.7+1.67+2.56
Round 13L.YangW.El Ahmady – T.SadekOpen16+5.8+0.36+2.88
Round 15L.YangM.Di Franco – A.MannoClosed16+0.7+0.04-1.12
Round 17L.YangC.Gower – A.AptekerOpen16+26.2+1.64+2.56
Round 18L.YangC.Pellegrini – C.LucenaClosed16+31.3+1.96+1.44
Round 19L.YangB.Van Den Bos – J.Van LankveldOpen16+0.8+0.05-1.75
Round 20L.YangM.Ispahani – KAMRUZZAMAN A H MOpen16+17.5+1.09-0.81

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
+12.0Round 7🇧🇷 BRAZIL97♦x♠4-5+10
+11.8Round 13🇪🇬 EGYPT165♣x♥A-5+10
+11.0Round 17🇿🇦 SOUTH AFRICA115♦x♠K-3+14
+10.6Round 2🇺🇸 USA2204♥♣4-1+12
+10.3Round 12🇮🇩 INDONESIA212♥x♠K=+8
+9.7Round 17🇿🇦 SOUTH AFRICA106♠♥5=+0
+9.7Round 18🇦🇷 ARGENTINA293NT♣4=+10
+9.4Round 19🇳🇱 NETHERLANDS57♠♥K=+0
+9.0Round 5🇫🇷 FRANCE134♦x♣A-2+0
+8.9Round 18🇦🇷 ARGENTINA236♠♣2=+0
+8.4Round 3🇲🇨 MONACO63NT♠4=-1
+8.4Round 12🇮🇩 INDONESIA183NT♣2-1+6
+7.9Round 3🇲🇨 MONACO33NT♥10=+10
+7.7Round 18🇦🇷 ARGENTINA273NT♠7=+0
+7.4Round 17🇿🇦 SOUTH AFRICA66♣♦3-1+11
+7.4Round 20🇧🇩 BANGLADESH325♣x♥8-3+8
+6.8Round 19🇳🇱 NETHERLANDS16♥♠3=-11
+6.5Round 13🇪🇬 EGYPT55♥♣Q-2+7
+6.3Round 5🇫🇷 FRANCE62♥♥2-1+8
+6.1Round 4🇬🇵 GUADELOUPE313♣♦Q-2-6
+6.1Round 18🇦🇷 ARGENTINA174♠x♥J-2+5
+6.0Round 17🇿🇦 SOUTH AFRICA145♠x♦J-1+5
+5.9Round 2🇺🇸 USA2234♠♠6-2+8
+5.7Round 4🇬🇵 GUADELOUPE192♥♠J+1+1
+5.2Round 4🇬🇵 GUADELOUPE284♥♠10=+0
+5.0Round 4🇬🇵 GUADELOUPE211NT♦4-4+7
+4.9Round 20🇧🇩 BANGLADESH306♥♦5=+0
+4.7Round 19🇳🇱 NETHERLANDS125♦♥7-1+2
+4.5Round 9🇸🇪 SWEDEN84♥♣9=+0
+4.3Round 2🇺🇸 USA2176NT♦2+1-11
+4.3Round 12🇮🇩 INDONESIA314♠x♥A-2+5
+4.3Round 13🇪🇬 EGYPT144♥♠K=+8
+4.1Round 11🇧🇬 BULGARIA133NT♣2-2+13
+4.1Round 18🇦🇷 ARGENTINA194♠♦K-1+10
+4.0Round 12🇮🇩 INDONESIA282♠♣6-1+6
+4.0Round 19🇳🇱 NETHERLANDS74♥♠2-1+12
+3.9Round 15🇮🇹 ITALY103♥♦A=+7
+3.9Round 17🇿🇦 SOUTH AFRICA53NT♦4+1+1
+3.8Round 13🇪🇬 EGYPT73NT♦2-2+13
+3.8Round 15🇮🇹 ITALY65♦♠A+1+14
+3.7Round 3🇲🇨 MONACO163♣♦5-1+4
+3.7Round 4🇬🇵 GUADELOUPE222♥♣Q=-5
+3.7Round 4🇬🇵 GUADELOUPE235♦♦3-1+12
+3.7Round 7🇧🇷 BRAZIL166♥♥4=+0
+3.7Round 11🇧🇬 BULGARIA45♠♣8+1+1
+3.6Round 15🇮🇹 ITALY113NT♣3=-1
+3.5Round 5🇫🇷 FRANCE74♠♣4-1+5
+3.5Round 12🇮🇩 INDONESIA234♠♣2+2+13
+3.4Round 11🇧🇬 BULGARIA34♠♦K-1+5
+3.4Round 11🇧🇬 BULGARIA163♥♣J=+1
+3.2Round 12🇮🇩 INDONESIA223NT♦J-1+10
+3.1Round 4🇬🇵 GUADELOUPE182NT♠6-2+3
+3.1Round 9🇸🇪 SWEDEN101NT♦2=-2
+3.0Round 15🇮🇹 ITALY124♠♦2+1+0
+3.0Round 17🇿🇦 SOUTH AFRICA14♠♣A-2+5
+2.9Round 20🇧🇩 BANGLADESH194♣♦A-1-2
+2.8Round 2🇺🇸 USA2212NT♠K-1+5
+2.8Round 5🇫🇷 FRANCE23NT♠4=+0
+2.8Round 19🇳🇱 NETHERLANDS133♠♦10+1+1
+2.7Round 20🇧🇩 BANGLADESH211NT♦7+2+6
+2.4Round 7🇧🇷 BRAZIL62♦♥6=-1
+2.3Round 13🇪🇬 EGYPT12♥x♥K-2+4
+2.2Round 9🇸🇪 SWEDEN135♦♦2=+13
+2.2Round 19🇳🇱 NETHERLANDS103♦♠7=+0
+2.1Round 5🇫🇷 FRANCE151NT♣K+1+1
+2.1Round 11🇧🇬 BULGARIA82♦♦2-2+5
+2.1Round 20🇧🇩 BANGLADESH276♥♦A=+0
+2.0Round 5🇫🇷 FRANCE12♠♠K-2+0
+2.0Round 7🇧🇷 BRAZIL82♥♠3+2+1
+2.0Round 20🇧🇩 BANGLADESH182♥♠2+2+1
+1.8Round 4🇬🇵 GUADELOUPE242♥♠K+2+2
+1.8Round 4🇬🇵 GUADELOUPE292♥♠9+2-10
+1.8Round 9🇸🇪 SWEDEN22♣♦9+1+5
+1.7Round 2🇺🇸 USA2222♣♠K-1+4
+1.7Round 12🇮🇩 INDONESIA294♥♥7+1+1
+1.7Round 20🇧🇩 BANGLADESH263NT♣J+1+0
+1.6Round 9🇸🇪 SWEDEN123NT♠5+1-1
+1.4Round 2🇺🇸 USA2194♠♥J-2-1
+1.4Round 3🇲🇨 MONACO136NT♣9+1+1
+1.4Round 17🇿🇦 SOUTH AFRICA123NT♠4-1+12
+1.2Round 2🇺🇸 USA2246♥♦2=+5
+1.2Round 13🇪🇬 EGYPT87♠♠3=+0
+1.2Round 13🇪🇬 EGYPT102♠♥3=+9
+1.2Round 17🇿🇦 SOUTH AFRICA22♠♠7-1+3
+1.2Round 18🇦🇷 ARGENTINA262♣♥K+1-1
+1.1Round 4🇬🇵 GUADELOUPE323NT♦6=+0
+1.1Round 15🇮🇹 ITALY151NT♥8+1+0
+1.1Round 17🇿🇦 SOUTH AFRICA74♠♥Q+2+1
+1.1Round 18🇦🇷 ARGENTINA244♦♠K-1-4
+1.1Round 19🇳🇱 NETHERLANDS83♠♥J=+1
+1.0Round 4🇬🇵 GUADELOUPE253NT♥2+2+1
+1.0Round 5🇫🇷 FRANCE124♠♥Q+1+1
+1.0Round 12🇮🇩 INDONESIA261NT♠2-1+0
+1.0Round 18🇦🇷 ARGENTINA312♠♦5-2+2
+0.9Round 3🇲🇨 MONACO74♥♣4+1+0
+0.9Round 3🇲🇨 MONACO113NT♥Q-3+2
+0.9Round 4🇬🇵 GUADELOUPE173♠♣10-2+8
+0.9Round 20🇧🇩 BANGLADESH232♠♦K+1-10
+0.8Round 18🇦🇷 ARGENTINA284♠♦J+1+0
+0.7Round 2🇺🇸 USA2292♠♠2+2+1
+0.7Round 12🇮🇩 INDONESIA253♠♣A=+1
+0.7Round 13🇪🇬 EGYPT33♠♥3=+0
+0.6Round 2🇺🇸 USA2282♠♦2+1+0
+0.6Round 18🇦🇷 ARGENTINA185♣♦K=-1
+0.6Round 19🇳🇱 NETHERLANDS143NT♥8+2+1
+0.5Round 5🇫🇷 FRANCE114♠♣Q=+0
+0.5Round 9🇸🇪 SWEDEN162♠♣A+3-10
+0.5Round 11🇧🇬 BULGARIA74♠♥2+1+4
+0.5Round 12🇮🇩 INDONESIA172♥♦5-2+1
+0.5Round 13🇪🇬 EGYPT64♥♠3-2+5
+0.4Round 9🇸🇪 SWEDEN44♥♦A-1+12
+0.3Round 18🇦🇷 ARGENTINA204♥♣K+3+2
+0.2Round 5🇫🇷 FRANCE93NT♥5+1+11
+0.2Round 15🇮🇹 ITALY34♣♠Q-1+1
+0.2Round 17🇿🇦 SOUTH AFRICA81NT♠4=+1
+0.1Round 2🇺🇸 USA2254♠♣A+1+0
+0.1Round 2🇺🇸 USA2313NT♥6=+0
+0.1Round 12🇮🇩 INDONESIA322♠♦10=-1
+0.1Round 15🇮🇹 ITALY73NT♥2+1+1
+0.0Round 3🇲🇨 MONACO123♦♦4-1+0
-0.0Round 4🇬🇵 GUADELOUPE204♠♦5=+0
+0.0Round 4🇬🇵 GUADELOUPE264♥♦K=-3
+0.0Round 5🇫🇷 FRANCE161NT♥6=+1
+0.0Round 7🇧🇷 BRAZIL114♥♣4+2+11
-0.0Round 9🇸🇪 SWEDEN117♥♠3=+0
+0.0Round 13🇪🇬 EGYPT21NT♣3+1+0
+0.0Round 15🇮🇹 ITALY44♠♥7+1+0
-0.0Round 15🇮🇹 ITALY162♥♦2+2-10
-0.0Round 20🇧🇩 BANGLADESH282♥♦J=+0
-0.1Round 3🇲🇨 MONACO82♠♠3-2+7
-0.1Round 20🇧🇩 BANGLADESH172♠♦A+1-7
-0.2Round 11🇧🇬 BULGARIA53NT♦2+1-1
-0.2Round 15🇮🇹 ITALY84♠♥3=+0
-0.2Round 17🇿🇦 SOUTH AFRICA91NT♣3=+0
-0.3Round 12🇮🇩 INDONESIA204♥♦4=+1
-0.3Round 20🇧🇩 BANGLADESH313♣♣K+2+10
-0.4Round 9🇸🇪 SWEDEN141NT♣K=+1
-0.5Round 2🇺🇸 USA2303NT♣3=-1
-0.5Round 5🇫🇷 FRANCE144♠♣7=+0
-0.6Round 5🇫🇷 FRANCE34♠♦K=+0
-0.7Round 11🇧🇬 BULGARIA103NT♣J+1-12
-0.7Round 12🇮🇩 INDONESIA304♠♥2+1+1
-0.7Round 19🇳🇱 NETHERLANDS42♠♥4+2-1
-0.8Round 9🇸🇪 SWEDEN153NT♣4+2-1
-0.8Round 11🇧🇬 BULGARIA63NT♣6-2-3
-0.8Round 12🇮🇩 INDONESIA242♠♣4=+0
-0.8Round 18🇦🇷 ARGENTINA303NT♦5+1+0
-0.8Round 20🇧🇩 BANGLADESH222♠♣10+1+7
-0.9Round 11🇧🇬 BULGARIA23♣♠Q-1+2
-0.9Round 17🇿🇦 SOUTH AFRICA34♠♣10-1-2
-0.9Round 19🇳🇱 NETHERLANDS114♥♦9+1-1
-0.9Round 20🇧🇩 BANGLADESH292♠♦4+2-8
-1.0Round 9🇸🇪 SWEDEN33NT♣4+2+0
-1.0Round 11🇧🇬 BULGARIA12♥♦2=+0
-1.0Round 11🇧🇬 BULGARIA143♥♠2=+0
-1.0Round 13🇪🇬 EGYPT92♣♥Q=+2
-1.0Round 18🇦🇷 ARGENTINA254♠♦J=+0
-1.1Round 3🇲🇨 MONACO11NT♣3=-6
-1.1Round 3🇲🇨 MONACO54♠♦3=+1
-1.1Round 7🇧🇷 BRAZIL53♣♦4+1-7
-1.1Round 15🇮🇹 ITALY24♠♣Q+3-14
-1.1Round 18🇦🇷 ARGENTINA214♠x♦A-3+0
-1.1Round 20🇧🇩 BANGLADESH243♥♣K=-6
-1.2Round 3🇲🇨 MONACO24♠♦Q+1-1
-1.2Round 9🇸🇪 SWEDEN64♥♣K+1+0
-1.2Round 20🇧🇩 BANGLADESH202♥♦6=+0
-1.4Round 2🇺🇸 USA2275♣♥Q-1-10
-1.4Round 3🇲🇨 MONACO94♥♠2=+0
-1.4Round 11🇧🇬 BULGARIA154♥♦2-1-5
-1.5Round 3🇲🇨 MONACO44♥♦3+1-1
-1.5Round 15🇮🇹 ITALY13♠x♦2-1-7
-1.6Round 9🇸🇪 SWEDEN54♥♦6-2-5
-1.6Round 19🇳🇱 NETHERLANDS163♦♥3-1+1
-1.7Round 7🇧🇷 BRAZIL104♠♣3=+0
-1.7Round 12🇮🇩 INDONESIA273NT♦Q-1-5
-1.7Round 19🇳🇱 NETHERLANDS24♠♣A=-8
-1.8Round 9🇸🇪 SWEDEN12♠♣7+2-6
-1.9Round 7🇧🇷 BRAZIL13NT♠9+1+1
-1.9Round 11🇧🇬 BULGARIA124♠♣K-1-4
-2.0Round 3🇲🇨 MONACO153NT♠5-1-5
-2.0Round 7🇧🇷 BRAZIL74♠♥J-2-8
-2.0Round 9🇸🇪 SWEDEN95♣♠2-1-2
-2.0Round 17🇿🇦 SOUTH AFRICA134♥♥6+1-1
-2.3Round 2🇺🇸 USA2265♣♥2=-13
-2.4Round 15🇮🇹 ITALY53NT♦Q+1+0
-2.4Round 18🇦🇷 ARGENTINA322♥♥3-1+0
-2.7Round 17🇿🇦 SOUTH AFRICA164♠♦K-2-9
-2.7Round 20🇧🇩 BANGLADESH254♥♠2+2-12
-2.8Round 7🇧🇷 BRAZIL134♥♣6-1+1
-2.8Round 13🇪🇬 EGYPT133♣♥3+1+0
-2.8Round 13🇪🇬 EGYPT155♥♦K=-4
-2.9Round 7🇧🇷 BRAZIL123♥♣Q-1-4
-2.9Round 17🇿🇦 SOUTH AFRICA42♦♠A=+0
-2.9Round 19🇳🇱 NETHERLANDS94♥♦J+2-2
-3.0Round 5🇫🇷 FRANCE42♠♦Q-2-2
-3.1Round 3🇲🇨 MONACO102♠♥3+1-12
-3.2Round 15🇮🇹 ITALY96♣♥A=+2
-3.2Round 15🇮🇹 ITALY133NT♦2-1-5
-3.4Round 15🇮🇹 ITALY142♠♦2+2-6
-4.0Round 3🇲🇨 MONACO144♥♠5=+1
-4.1Round 19🇳🇱 NETHERLANDS152NT♥2-2-5
-4.2Round 13🇪🇬 EGYPT43♠♦K=+0
-4.3Round 9🇸🇪 SWEDEN73♠♣K-1-5
-4.6Round 5🇫🇷 FRANCE102♥♦6-2-3
-4.8Round 7🇧🇷 BRAZIL154♥x♣4-2-5
-4.9Round 18🇦🇷 ARGENTINA223NT♠6=+0
-5.0Round 4🇬🇵 GUADELOUPE306♥♠3=+10
-5.3Round 5🇫🇷 FRANCE84♠x♥10=-7
-5.3Round 7🇧🇷 BRAZIL33NT♠Q-1-6
-5.7Round 11🇧🇬 BULGARIA116♥x♦A+1+5
-6.0Round 5🇫🇷 FRANCE53NT♥8+1+0
-6.1Round 7🇧🇷 BRAZIL42♥♥J+1-7
-6.9Round 2🇺🇸 USA2323NT♠Q-1-12
-7.0Round 4🇬🇵 GUADELOUPE276♣♠K-1-16
-7.4Round 7🇧🇷 BRAZIL143♠x♣5-2-9
-7.5Round 12🇮🇩 INDONESIA194♥x♦K+1-6
-7.6Round 2🇺🇸 USA2186NT♦3=+0
-7.8Round 13🇪🇬 EGYPT123♠x♥6-1+0
-7.9Round 13🇪🇬 EGYPT115♥x♠3=-8
-7.9Round 19🇳🇱 NETHERLANDS63NT♥8-3-9
-8.5Round 11🇧🇬 BULGARIA93NT♣2-2-12
-10.0Round 17🇿🇦 SOUTH AFRICA153NT♣2=+0
-11.0Round 19🇳🇱 NETHERLANDS33♦x♥7-3-9
-11.1Round 7🇧🇷 BRAZIL24♥♦8=-10