🇨🇳 DAI Jianming · CHINA

19rank
+99.2Butler · 260 bds
+0.38per board
±4.9swing
+0.41vs par /bd · #15/125
+0.29adjusted /bd
Butler per round: -8 2.3 -4 22.9 47 19.4 5.1 36.7 -7.6 -32.9 41.8 14.7 -38.2by round

vs par split: bidding +1.11 · play +0.00

Strength of schedule: opponents averaged -0.09/bd (an easy draw) → opponent-adjusted +0.29/bd

Card play — on target: opening leads 77.6% #103 of 125 · declarer play 71.1% #104 of 125 · defence 90.1% #38 of 125

Card play by contract type — on target
vs NTvs a suit
Opening leads·77.6% (49)
Declarer play·71.1% (38)
Defence·90.1% (101)

Opening leads by suit led: ♠ 75.0% (12) · ♥ 83.3% (12) · ♦ 71.4% (7) · ♣ 77.8% (18)

vs par by strain: a suit +1.11 (179)

vs par by level: part-score +1.22 (74) · game +1.32 (82) · slam +0.04 (23)

By role: declaring -0.20/bd (-2.40 vs par · 125) · defending +0.92/bd (+3.02 vs par · 135)

By vulnerability: vulnerable +0.57/bd (+1.10 vs par · 130) · not vulnerable +0.19/bd (-0.28 vs par · 130)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1L.YangC.Gower – W.ChuOpen20-8.0-0.40-0.10
Round 3L.YangA.El-Kourdy – H.DagherClosed20+2.3+0.11+0.25
Round 4L.YangA.Hobart – G.MittelmanClosed20-4.0-0.20-1.05
Round 6L.YangT.Teramoto – K.MiyakuniOpen20+22.9+1.15+0.80
Round 8L.YangN.Hattar-Ghanem – G.GhanemClosed20+47.0+2.35+4.20
Round 9L.YangJ.Hackett – J.HackettOpen20+19.4+0.97-0.35
Round 10L.YangN.Paz – C.LuisClosed20+5.1+0.26-0.65
Round 14L.YangG.Mooney – M.MonsegurOpen20+36.7+1.84+1.90
Round 15L.YangG.Hampson – E.GrecoOpen20-7.6-0.38+0.15
Round 16L.YangA.Versace – L.LauriaOpen20-32.9-1.65-1.15
Round 18L.YangH.Yang – W.ChiuClosed20+41.8+2.09-0.05
Round 20L.YangR.Rizk – P.JoattonClosed20+14.7+0.73+1.80
Round 21L.YangG.Chagas – M.Villas-BoasOpen20-38.2-1.91-0.40

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
+15.0Round 8🇯🇴 JORDAN126♣x♦9-5+17
+13.3Round 14🇦🇷 ARGENTINA164♠♣K=+13
+13.3Round 20🇬🇵 GUADELOUPE67♥x♠3-1+14
+13.0Round 18🇹🇼 CHINESE TAIPEI206♦x♥2-3+12
+12.0Round 10🇵🇹 PORTUGAL46♦♥A=+0
+11.7Round 18🇹🇼 CHINESE TAIPEI135♦x♠A-1+12
+11.5Round 6🇯🇵 JAPAN52♥x♣A-3+12
+10.0Round 1🇿🇦 SOUTH AFRICA46♦x♥2-2+15
+9.5Round 20🇬🇵 GUADELOUPE53N♦4-1+11
+9.0Round 18🇹🇼 CHINESE TAIPEI185♣x♥K-2+8
+8.7Round 8🇯🇴 JORDAN44♥x♠K-2+12
+8.4Round 8🇯🇴 JORDAN195♣x♠3-2+10
+8.1Round 3🇪🇬 EGYPT182♣x♦5+1+10
+8.0Round 4🇨🇦 CANADA14♠♥8-1+10
+7.7Round 8🇯🇴 JORDAN113N♣10+1+7
+7.7Round 18🇹🇼 CHINESE TAIPEI84♠x♦K-3+2
+7.6Round 9🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND103♠♦4+1+10
+7.6Round 20🇬🇵 GUADELOUPE93N♥K=+0
+7.5Round 8🇯🇴 JORDAN24♠♦4-1+12
+7.4Round 4🇨🇦 CANADA41♦♣A-2+9
+7.4Round 14🇦🇷 ARGENTINA23N♥8-2+7
+7.4Round 21🇧🇷 BRAZIL183♥♦A=+0
+7.3Round 15🇺🇸 USA 2136♥x♣J-2+14
+7.2Round 20🇬🇵 GUADELOUPE72♠x♥A-3+5
+7.0Round 8🇯🇴 JORDAN173N♥7+2+1
+7.0Round 9🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND164♥♠4=+1
+6.8Round 3🇪🇬 EGYPT155♠♣A=+8
+6.8Round 18🇹🇼 CHINESE TAIPEI73N♠4=+0
+6.7Round 10🇵🇹 PORTUGAL192♠♥5-2+11
+6.5Round 10🇵🇹 PORTUGAL105♠♥2+1+13
+6.4Round 15🇺🇸 USA 2146♣♠K-2+11
+6.2Round 14🇦🇷 ARGENTINA183N♠4-1+12
+6.1Round 8🇯🇴 JORDAN163♥x♠3-2+5
+6.1Round 18🇹🇼 CHINESE TAIPEI163♥♣J+1+7
+5.9Round 21🇧🇷 BRAZIL16♦x♣K-2+5
+5.6Round 20🇬🇵 GUADELOUPE133♠♠5+1+10
+5.3Round 6🇯🇵 JAPAN83♥♣6+1+6
+5.2Round 14🇦🇷 ARGENTINA33N♣6+3-9
+5.2Round 20🇬🇵 GUADELOUPE174♠♣3+2+11
+5.0Round 9🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND133♥♠5-2+2
+4.8Round 1🇿🇦 SOUTH AFRICA194♠♥2-1+10
+4.5Round 4🇨🇦 CANADA103♥♥J-2+8
+4.2Round 15🇺🇸 USA 2154♥♣5-1+5
+4.2Round 21🇧🇷 BRAZIL105♥♣A=+13
+4.2Round 21🇧🇷 BRAZIL114♦x♠J-1+6
+4.1Round 6🇯🇵 JAPAN64♥♣7-3+7
+4.1Round 14🇦🇷 ARGENTINA193N♥5-2+11
+4.1Round 16🇮🇹 ITALY143♦♠10=+6
+4.0Round 6🇯🇵 JAPAN41N♥3-1+0
+4.0Round 6🇯🇵 JAPAN114♠x♥K-1+6
+4.0Round 14🇦🇷 ARGENTINA124♠♦J+1+0
+4.0Round 16🇮🇹 ITALY203N♦K-1+6
+3.9Round 6🇯🇵 JAPAN24♠♥6-2+5
+3.9Round 8🇯🇴 JORDAN62♥♣Q+1+7
+3.9Round 16🇮🇹 ITALY21N♠3+2+2
+3.7Round 4🇨🇦 CANADA145♦x♥A-2-4
+3.6Round 3🇪🇬 EGYPT203N♣5+1+0
+3.6Round 16🇮🇹 ITALY13N♠A-1+5
+3.4Round 8🇯🇴 JORDAN183N♠10+1+0
+3.2Round 9🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND53♠♦A-1+5
+3.1Round 20🇬🇵 GUADELOUPE83♣♥3-1+2
+3.0Round 14🇦🇷 ARGENTINA142♥♣Q+1+1
+2.9Round 15🇺🇸 USA 284♠♥3-1+4
+2.8Round 6🇯🇵 JAPAN192♥♦10-1-1
+2.8Round 18🇹🇼 CHINESE TAIPEI91N♥4+3+2
+2.7Round 21🇧🇷 BRAZIL64♠♦7+1+1
+2.6Round 10🇵🇹 PORTUGAL174♠x♣4-1+8
+2.6Round 10🇵🇹 PORTUGAL202♥♣Q+1+0
+2.6Round 14🇦🇷 ARGENTINA13♣♣K-1+4
+2.6Round 16🇮🇹 ITALY51N♥2-3+2
+2.5Round 18🇹🇼 CHINESE TAIPEI107♦♦10=+4
+2.4Round 3🇪🇬 EGYPT125♥♠J=+4
+2.4Round 9🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND33N♣Q-1+5
+2.4Round 9🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND121N♠2=-1
+2.4Round 15🇺🇸 USA 2113N♥2+1+0
+2.3Round 6🇯🇵 JAPAN33♣♠Q+2+7
+2.3Round 9🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND44♥♠9+1+0
+2.2Round 3🇪🇬 EGYPT24♥♦8-2-1
+2.2Round 6🇯🇵 JAPAN161N♣2-2+0
+2.2Round 18🇹🇼 CHINESE TAIPEI174♠x♥7-2+0
+2.2Round 20🇬🇵 GUADELOUPE152♠♥A-1+4
+2.1Round 18🇹🇼 CHINESE TAIPEI121N♥4+2-7
+2.0Round 3🇪🇬 EGYPT143N♣5+4-10
+2.0Round 15🇺🇸 USA 261♥♦2+2-7
+2.0Round 15🇺🇸 USA 293N♠10-1-8
+2.0Round 20🇬🇵 GUADELOUPE145♥♦10-1+8
+1.9Round 4🇨🇦 CANADA194♥♦10+2+1
+1.9Round 10🇵🇹 PORTUGAL64♥♣9+2+5
+1.8Round 3🇪🇬 EGYPT84♠♥9=+0
+1.8Round 10🇵🇹 PORTUGAL151N♥9+3-6
+1.8Round 20🇬🇵 GUADELOUPE113N♥5=+2
+1.7Round 15🇺🇸 USA 2122♠♣2+1+0
+1.6Round 1🇿🇦 SOUTH AFRICA153♦♠3=+9
+1.6Round 9🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND144♠♥A=-1
+1.5Round 1🇿🇦 SOUTH AFRICA63♥♣8-1+4
+1.5Round 4🇨🇦 CANADA51N♥4+3+9
+1.5Round 14🇦🇷 ARGENTINA131♠♦10+1+0
+1.5Round 14🇦🇷 ARGENTINA153N♥5+2+1
+1.5Round 15🇺🇸 USA 2104♠♥Q-1+6
+1.3Round 4🇨🇦 CANADA154♥♦A+2+1
+1.3Round 6🇯🇵 JAPAN141N♥8+2+0
+1.3Round 20🇬🇵 GUADELOUPE33N♦10=-1
+1.3Round 21🇧🇷 BRAZIL84♥♣Q=-1
+1.2Round 1🇿🇦 SOUTH AFRICA124♠♠10=+0
+1.2Round 8🇯🇴 JORDAN201N♠3+1+0
+1.2Round 15🇺🇸 USA 2203N♠5+1+0
+1.1Round 6🇯🇵 JAPAN133N♥5-2-2
+1.1Round 8🇯🇴 JORDAN86N♥3+1+11
+1.1Round 9🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND114♠♥3-2+5
+1.0Round 4🇨🇦 CANADA85♦♥2-1-10
+1.0Round 4🇨🇦 CANADA123♣♠2=-1
+1.0Round 4🇨🇦 CANADA134♠♥K-2+2
+1.0Round 10🇵🇹 PORTUGAL121N♥8+1-1
+1.0Round 16🇮🇹 ITALY192♠♣4=+0
+0.9Round 1🇿🇦 SOUTH AFRICA14♥♣6+2-11
+0.9Round 21🇧🇷 BRAZIL74♦♦3-2+9
+0.8Round 1🇿🇦 SOUTH AFRICA74♠♥2+1+0
+0.8Round 1🇿🇦 SOUTH AFRICA161N♥9=-1
+0.8Round 8🇯🇴 JORDAN13N♠8=+0
+0.8Round 14🇦🇷 ARGENTINA114♠♦9+2-11
+0.7Round 3🇪🇬 EGYPT194♥♠2+1+13
+0.7Round 9🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND24♥♦A=-1
+0.7Round 18🇹🇼 CHINESE TAIPEI152♣♠J+3+1
+0.6Round 14🇦🇷 ARGENTINA75♣x♣3-2-4
+0.6Round 18🇹🇼 CHINESE TAIPEI112♠♥3-2+0
+0.5Round 3🇪🇬 EGYPT94♥♥J+1+0
+0.5Round 3🇪🇬 EGYPT132♠♥6=+1
+0.4Round 1🇿🇦 SOUTH AFRICA84♠♥7=-1
+0.4Round 4🇨🇦 CANADA164♠♥5=+1
+0.4Round 8🇯🇴 JORDAN96♥x♠K-3+0
+0.4Round 10🇵🇹 PORTUGAL84♣♥2=+0
+0.4Round 10🇵🇹 PORTUGAL163N♦7=+0
+0.4Round 14🇦🇷 ARGENTINA41♠♦Q-2+9
+0.4Round 14🇦🇷 ARGENTINA20Pass+3
+0.4Round 16🇮🇹 ITALY114♥♣5-2-1
+0.4Round 18🇹🇼 CHINESE TAIPEI193♦♠K+1+0
+0.3Round 1🇿🇦 SOUTH AFRICA103N♥Q+1+0
+0.3Round 8🇯🇴 JORDAN53N♦K=-1
+0.3Round 8🇯🇴 JORDAN142♠♥7+1+6
+0.3Round 14🇦🇷 ARGENTINA84♠♥7+1+0
+0.3Round 18🇹🇼 CHINESE TAIPEI44♥♦A+1+0
+0.2Round 15🇺🇸 USA 2182♠♣4+2-1
+0.1Round 3🇪🇬 EGYPT61N♥3+1+0
+0.1Round 3🇪🇬 EGYPT104♠♦Q+1+0
+0.1Round 6🇯🇵 JAPAN103N♠6=+0
+0.1Round 6🇯🇵 JAPAN174♠♦2+1+1
+0.1Round 14🇦🇷 ARGENTINA64♥♠10+2+11
+0.0Round 1🇿🇦 SOUTH AFRICA23♦♥K=-6
+0.0Round 1🇿🇦 SOUTH AFRICA54♥♠6-1+5
-0.0Round 4🇨🇦 CANADA204♥♣6+1+0
-0.0Round 10🇵🇹 PORTUGAL92♥♣5+1+7
+0.0Round 15🇺🇸 USA 244♥♦K=+0
+0.0Round 20🇬🇵 GUADELOUPE204♥♦A=+0
-0.1Round 1🇿🇦 SOUTH AFRICA183N♣Q+3+2
-0.1Round 9🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND93N♦Q=-1
-0.1Round 14🇦🇷 ARGENTINA173N♠3+1+0
-0.2Round 9🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND64♠♠4=+0
-0.3Round 15🇺🇸 USA 274♠♣3=-1
-0.4Round 3🇪🇬 EGYPT13N♥K=+1
-0.4Round 3🇪🇬 EGYPT53N♠5=+0
-0.4Round 4🇨🇦 CANADA182♦♦6+1-1
-0.4Round 16🇮🇹 ITALY43♦♠3=+0
-0.4Round 21🇧🇷 BRAZIL143N♦9+1+11
-0.5Round 8🇯🇴 JORDAN104♠♦Q=-1
-0.5Round 9🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND73N♦J+1-1
-0.6Round 6🇯🇵 JAPAN94♠♣5=+0
-0.6Round 9🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND85♥♠K=+0
-0.7Round 21🇧🇷 BRAZIL23N♣9+2-14
-0.8Round 18🇹🇼 CHINESE TAIPEI63N♣7-2-8
-0.9Round 3🇪🇬 EGYPT113N♥7+1+0
-0.9Round 10🇵🇹 PORTUGAL132N♣2-1+5
-1.0Round 15🇺🇸 USA 213N♠3+2+10
-1.0Round 21🇧🇷 BRAZIL174♥♣10=-7
-1.1Round 6🇯🇵 JAPAN153N♠2+1+0
-1.1Round 20🇬🇵 GUADELOUPE13♣♥J-3+7
-1.3Round 4🇨🇦 CANADA33♦♠8=-6
-1.3Round 14🇦🇷 ARGENTINA52♥♠Q-1+2
-1.5Round 16🇮🇹 ITALY182♠♣4-1+0
-1.5Round 18🇹🇼 CHINESE TAIPEI26♦♣J-1-11
-1.5Round 20🇬🇵 GUADELOUPE182♠♥10+1-1
-1.6Round 8🇯🇴 JORDAN153♠♦J-2+0
-1.6Round 9🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND13N♥K+3-12
-1.6Round 9🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND173♠♣K-1+2
-1.6Round 18🇹🇼 CHINESE TAIPEI53♥♠Q=+0
-1.8Round 4🇨🇦 CANADA73♦♦2=-1
-1.8Round 16🇮🇹 ITALY74♥♣3+1+13
-1.8Round 21🇧🇷 BRAZIL203♠♥A+1+8
-1.9Round 9🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND183♥♣6+1-6
-2.0Round 6🇯🇵 JAPAN201N♥J+1+0
-2.0Round 20🇬🇵 GUADELOUPE22♠♦6-1-5
-2.2Round 10🇵🇹 PORTUGAL72♥♣3+1+0
-2.2Round 20🇬🇵 GUADELOUPE163N♥2-1-4
-2.3Round 6🇯🇵 JAPAN126♣♥J=+2
-2.3Round 9🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND202♥♣2=-6
-2.3Round 14🇦🇷 ARGENTINA93N♠3+1-1
-2.4Round 10🇵🇹 PORTUGAL23N♥3+1-1
-2.4Round 15🇺🇸 USA 2173♠♥4=-6
-2.5Round 3🇪🇬 EGYPT33♣♥6-2-6
-2.5Round 9🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND153N♥6-1+2
-2.5Round 16🇮🇹 ITALY123N♣J+2-13
-2.6Round 9🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND193♠♥K+1-10
-2.7Round 10🇵🇹 PORTUGAL36♥♠A-1-17
-2.8Round 1🇿🇦 SOUTH AFRICA117♠♦K=+0
-2.8Round 15🇺🇸 USA 223♠♣10=+6
-2.8Round 15🇺🇸 USA 234♥♠3=-8
-2.9Round 10🇵🇹 PORTUGAL143Nx♥Q-1-5
-3.0Round 1🇿🇦 SOUTH AFRICA134♣♣5=+0
-3.0Round 10🇵🇹 PORTUGAL184♠♥5+2-11
-3.0Round 16🇮🇹 ITALY82♠♠6=-6
-3.1Round 16🇮🇹 ITALY161♠♥J+2+0
-3.2Round 16🇮🇹 ITALY61N♠10+2-2
-3.3Round 1🇿🇦 SOUTH AFRICA33♦x♠A-2-3
-3.3Round 1🇿🇦 SOUTH AFRICA206N♠10-2-13
-3.3Round 21🇧🇷 BRAZIL31N♥3=-11
-3.6Round 1🇿🇦 SOUTH AFRICA143♦♥9=+0
-3.9Round 3🇪🇬 EGYPT43N♦Q-3-3
-3.9Round 6🇯🇵 JAPAN183N♥3-1-10
-4.1Round 3🇪🇬 EGYPT163N♦A-1-5
-4.1Round 10🇵🇹 PORTUGAL14♥♥5=-3
-4.3Round 16🇮🇹 ITALY154♥♣8-2-7
-4.4Round 16🇮🇹 ITALY134♠♣7+1+0
-4.5Round 4🇨🇦 CANADA23♠♣7+1-6
-4.5Round 6🇯🇵 JAPAN71N♠10-1-12
-4.5Round 18🇹🇼 CHINESE TAIPEI147♠♠5=+0
-4.6Round 3🇪🇬 EGYPT73♠♣K=+0
-4.7Round 1🇿🇦 SOUTH AFRICA175♦♣3=+0
-4.9Round 4🇨🇦 CANADA95♦x♠K-2-5
-4.9Round 21🇧🇷 BRAZIL41N♥10-1-6
-5.0Round 21🇧🇷 BRAZIL163N♥6-2-2
-5.1Round 16🇮🇹 ITALY103N♠7-3-5
-5.4Round 6🇯🇵 JAPAN14♠x♣A=-5
-5.4Round 8🇯🇴 JORDAN136♥♠J=+0
-5.6Round 4🇨🇦 CANADA64♣♠7=-6
-5.8Round 21🇧🇷 BRAZIL153♣♦K+1-7
-5.9Round 21🇧🇷 BRAZIL133N♥3+1+0
-6.0Round 15🇺🇸 USA 257♦♣Q=+2
-6.0Round 16🇮🇹 ITALY92♣♠A-3-11
-6.2Round 10🇵🇹 PORTUGAL114♥♦2=-8
-6.2Round 16🇮🇹 ITALY173♥♣Q=-4
-6.2Round 21🇧🇷 BRAZIL54♥♥3=-3
-6.4Round 10🇵🇹 PORTUGAL53N♠8=-10
-6.5Round 18🇹🇼 CHINESE TAIPEI16♠♥J+1-11
-6.8Round 21🇧🇷 BRAZIL124♠♦7=+0
-6.9Round 8🇯🇴 JORDAN36N♣7=+11
-7.5Round 20🇬🇵 GUADELOUPE123N♥J-1-12
-8.4Round 4🇨🇦 CANADA176♥♦9-1-11
-8.8Round 4🇨🇦 CANADA116♠♦A-1-11
-9.2Round 18🇹🇼 CHINESE TAIPEI33N♦Q-1-12
-9.3Round 15🇺🇸 USA 2166♦♥5-2-11
-9.4Round 20🇬🇵 GUADELOUPE43N♦3-2-8
-9.5Round 1🇿🇦 SOUTH AFRICA94♠x♦3-2-12
-9.5Round 21🇧🇷 BRAZIL95♥x♣K-3+5
-9.7Round 3🇪🇬 EGYPT174♥♣6=-7
-10.2Round 20🇬🇵 GUADELOUPE105♥♠8-1-7
-10.2Round 20🇬🇵 GUADELOUPE194♠♣A=+0
-10.4Round 8🇯🇴 JORDAN73Nx♥3+1-13
-11.0Round 14🇦🇷 ARGENTINA102♣♠K+2-11
-11.0Round 16🇮🇹 ITALY36♥♠3=-8
-13.5Round 21🇧🇷 BRAZIL197♠x♣A-4-15
-14.8Round 15🇺🇸 USA 2195♦x♠J-6-13