O'BRIEN Brendan J · IRELAND

287rank
+5.7Butler · 150 bds
+0.04per board
±4.2swing
-0.31vs par /bd · #404/567
-0.13adjusted /bd
Butler per round: -5.6 5 -10.9 10.1 22.7 -6.8 -4 -2.8 -2.5 -3.4 -16.5 6.4 6.7 -12.5 19.8by round

vs par split: bidding -0.58 · play +0.26

Strength of schedule: opponents averaged -0.17/bd (an easy draw) → opponent-adjusted -0.13/bd

Card play — on target: opening leads 85.0% #145 of 567 · declarer play 64.7% #518 of 567 · defence 76.2% #505 of 567

Card play by contract type — on target
vs NTvs a suit
Opening leads80.0% (15)88.0% (25)
Declarer play55.6% (9)68.0% (25)
Defence62.5% (24)82.1% (56)

Opening leads by suit led: ♠ 70.0% (10) · ♥ 92.9% (14) · ♦ 80.0% (10) · ♣ 100.0% (6)

vs par by strain: NT -0.47 (47) · a suit -0.27 (102)

vs par by level: part-score -0.96 (70) · game +0.48 (73) · slam -2.83 (6)

By role: declaring -0.53/bd (-3.14 vs par · 70) · defending +0.54/bd (+2.17 vs par · 80)

By vulnerability: vulnerable +0.39/bd (+0.33 vs par · 75) · not vulnerable -0.31/bd (-0.95 vs par · 75)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1R.MilneX.Hou – Z.FuClosed10-5.6-0.56-0.80
Round 2R.MilneR.Chen – D.FeiClosed10+5.0+0.50-1.20
Round 3R.MilneP.Marstrander – T.BakkeClosed10-10.9-1.09-0.10
Round 4R.MilneA.Pejacsevich – C.PellegriniClosed10+10.1+1.01+1.40
Round 5R.MilneA.Zets – G.MundellOpen10+22.7+2.27+1.70
Round 6R.MilneK.Limsinsopon – P.SitthicharoensawatOpen10-6.8-0.68+0.80
Round 7R.MilneJ.Gu – J.ZhouClosed10-4.0-0.40+2.50
Round 8R.MilneX.Li – Y.WuClosed10-2.8-0.28-0.40
Round 9R.MilneM.Yu – L.LiClosed10-2.5-0.25-3.60
Round 10R.MilneI.Baroni – A.TartarinOpen10-3.4-0.34-2.20
Round 11R.MilneW.Chan – S.WongOpen10-16.5-1.65-2.60
Round 12R.MilneZ.Zeng – S.ChenClosed10+6.4+0.64-0.40
Round 13R.MilneJ.Cai – X.FangOpen10+6.7+0.67-1.10
Round 14R.MilneT.Wu – D.TaoOpen10-12.5-1.25-2.40
Round 15R.MilneD.Yu – Y.XunOpen10+19.8+1.98+3.80

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
+11.3Round 15YUNNAN263NT♣8-4+14
+8.5Round 12HUAXINHUANBAO286♥♣4-1+14
+8.0Round 8FUJIAN BOSSSOFT142♠x♦Q-4+8
+7.8Round 4ANIT NEGRA43NT♠J-2+13
+7.5Round 9JXBA292♥♣K=+6
+7.1Round 5OZ ANGELS134♠♥Q-1+12
+7.1Round 9JXBA215♥x♠J-1+11
+6.9Round 2WUHAN ENGINEERING203NT♥6=+3
+6.9Round 15YUNNAN223NT♦8-1+12
+6.8Round 4ANIT NEGRA24♣♥K=+8
+6.8Round 10PSG24♠x♣A=+7
+6.8Round 13ONE ESSENTIAL OF RED33NT♦3-1+12
+6.8Round 13ONE ESSENTIAL OF RED54♥♥2-2+0
+6.3Round 15YUNNAN295♥♠K-1+12
+6.2Round 5OZ ANGELS194♠♦8=+7
+5.6Round 12HUAXINHUANBAO273NT♣7-1+10
+5.4Round 14ZJJDWUHANYUAN143NT♣10-3+6
+5.1Round 5OZ ANGELS204♠♣4-1+6
+5.1Round 11FAR EAST115♦♣3-1+4
+4.9Round 12HUAXINHUANBAO261NT♠4-1+6
+4.8Round 5OZ ANGELS114♠♦6-1+5
+4.8Round 10PSG62♣x♠9-1+8
+4.7Round 1PD TIMES44♥♠6-1+6
+4.5Round 7XINJIANGYILI105♦x♠Q-1+8
+4.2Round 13ONE ESSENTIAL OF RED42NT♥Q=+6
+4.1Round 6THAILAND Mixed245♦♣7-2+5
+3.9Round 11FAR EAST182♠♣3-1+4
+3.8Round 2WUHAN ENGINEERING115♦♥5+1+0
+3.8Round 2WUHAN ENGINEERING163NT♠4=+7
+3.7Round 3NORWAY Seniors293♠♥J+1-1
+3.5Round 7XINJIANGYILI12♥♣8=+5
+3.5Round 8FUJIAN BOSSSOFT165♦♥5-2+7
+3.5Round 14ZJJDWUHANYUAN185♥♣7=+4
+3.4Round 8FUJIAN BOSSSOFT201NT♥2=-1
+3.3Round 2WUHAN ENGINEERING154♦♠3=+2
+3.2Round 14ZJJDWUHANYUAN163♠♥A=+0
+3.1Round 1PD TIMES84♠♥4-1+10
+2.8Round 12HUAXINHUANBAO304♠x♦2-1+6
+2.8Round 13ONE ESSENTIAL OF RED13NT♣9=-1
+2.8Round 15YUNNAN305♣♣10-1+5
+2.7Round 3NORWAY Seniors274♥♦A=+3
+2.6Round 12HUAXINHUANBAO256♥♣10=-11
+2.5Round 7XINJIANGYILI23♥♦9-2+0
+2.4Round 5OZ ANGELS153♥♠K-1-2
+2.4Round 14ZJJDWUHANYUAN133♠♥Q=+1
+2.3Round 1PD TIMES32♥♠9+2+1
+2.3Round 1PD TIMES92♦♦6+2-2
+2.2Round 1PD TIMES53♣♣4+2+7
+2.1Round 2WUHAN ENGINEERING123♠♥Q=-8
+2.1Round 5OZ ANGELS142NT♠Q=+6
+1.9Round 13ONE ESSENTIAL OF RED93NT♥5+3+3
+1.8Round 15YUNNAN232♠♠3+1+1
+1.7Round 4ANIT NEGRA82NT♣5-1+4
+1.7Round 8FUJIAN BOSSSOFT185♦♣5=-2
+1.6Round 6THAILAND Mixed282♠♦10+1+0
+1.6Round 15YUNNAN283NT♣2+4+10
+1.4Round 9JXBA263NT♠7+3-12
+1.3Round 11FAR EAST163♥♥8=+0
+1.2Round 7XINJIANGYILI32NT♥10=+0
+1.1Round 3NORWAY Seniors264♥♠J+2+13
+1.0Round 10PSG43♠♥3-1-1
+1.0Round 12HUAXINHUANBAO211NT♣3-1+0
+0.9Round 5OZ ANGELS173♠♣3+1+1
+0.9Round 6THAILAND Mixed222♥♦K+1+0
+0.6Round 2WUHAN ENGINEERING143♦♥7=+5
+0.6Round 4ANIT NEGRA102♣♠K=+0
+0.6Round 6THAILAND Mixed303♥♣K=+6
+0.6Round 7XINJIANGYILI84♥♦3=+11
+0.5Round 1PD TIMES71NT♥5=+1
+0.4Round 7XINJIANGYILI72♦♦3=+1
+0.3Round 3NORWAY Seniors245♦♥4=+2
+0.3Round 6THAILAND Mixed213NT♥J-3+6
+0.3Round 9JXBA273♠♥K=+7
-0.0Round 8FUJIAN BOSSSOFT114♠♥A+1+0
-0.0Round 10PSG86NT♣6=-11
-0.1Round 3NORWAY Seniors223NT♥10-1-5
-0.2Round 6THAILAND Mixed261♠♦4-1-1
-0.3Round 4ANIT NEGRA14♥♠9+1+0
-0.4Round 4ANIT NEGRA54♠♥K+1-1
-0.4Round 11FAR EAST202♠♣6=+0
-0.5Round 8FUJIAN BOSSSOFT153NT♠9=-1
-0.5Round 15YUNNAN253NT♠9=-1
-0.6Round 2WUHAN ENGINEERING131NT♦K=+1
-0.6Round 4ANIT NEGRA34♥♠K+2-11
-0.6Round 5OZ ANGELS161NT♠Q=-7
-0.6Round 14ZJJDWUHANYUAN124♠♦4=+0
-0.7Round 4ANIT NEGRA73♠♣7=+0
-0.7Round 13ONE ESSENTIAL OF RED61NT♣3+1-7
-0.8Round 15YUNNAN243NT♠5+3-1
-0.9Round 4ANIT NEGRA62♥♠7-1+0
-1.0Round 3NORWAY Seniors252♠♥7-2-5
-1.0Round 13ONE ESSENTIAL OF RED74♠♥5=+1
-1.2Round 12HUAXINHUANBAO233♥♥J+1-1
-1.4Round 10PSG33♥♥3-1-7
-1.4Round 10PSG9Pass+3
-1.4Round 11FAR EAST124♥♦J=+0
-1.6Round 6THAILAND Mixed232♠♣5+1+0
-1.6Round 7XINJIANGYILI53♣♥7+1+0
-1.6Round 10PSG52♥♠5=-5
-1.7Round 5OZ ANGELS183NT♦6-1-6
-1.7Round 9JXBA254♥♦6+2-11
-1.7Round 14ZJJDWUHANYUAN174♠♥4+1+0
-1.8Round 1PD TIMES104♥♣A-2-2
-1.9Round 9JXBA243♥♦5-2-5
-2.0Round 6THAILAND Mixed275♠♥A-1-8
-2.3Round 10PSG103♠♦3=-1
-2.3Round 14ZJJDWUHANYUAN201NT♦5=-6
-2.4Round 14ZJJDWUHANYUAN192♠♣A-1-4
-2.7Round 3NORWAY Seniors214♥♠K=+1
-2.7Round 9JXBA282♥♣10=-1
-2.7Round 10PSG11NT♦10+1-5
-2.8Round 2WUHAN ENGINEERING182♥♠A=-1
-2.8Round 3NORWAY Seniors231NT♣2=+1
-2.9Round 11FAR EAST154♣♦K+1-11
-3.1Round 15YUNNAN214♥♦6-1-6
-3.2Round 13ONE ESSENTIAL OF RED24♦♣Q-1-12
-3.3Round 9JXBA306♠♦Q-2-11
-3.5Round 12HUAXINHUANBAO242NT♥J-1-9
-3.6Round 5OZ ANGELS121NT♦6=-5
-3.7Round 8FUJIAN BOSSSOFT193NT♠2-1-10
-3.8Round 1PD TIMES62♠♥3=-11
-3.9Round 4ANIT NEGRA92♠♣5-1+1
-3.9Round 8FUJIAN BOSSSOFT174♣♦A=-1
-4.0Round 2WUHAN ENGINEERING173♠♦A-1-10
-4.0Round 6THAILAND Mixed252NT♥2=+0
-4.2Round 3NORWAY Seniors283NT♦Q+4-2
-4.4Round 9JXBA235♦♥9+1-14
-4.5Round 7XINJIANGYILI64♥x♠A-1-5
-4.7Round 11FAR EAST193NT♥9+1-1
-4.8Round 7XINJIANGYILI45♠x♦K-1-7
-4.8Round 9JXBA223NT♣9-2-6
-4.8Round 11FAR EAST172♥♠2=-11
-4.9Round 13ONE ESSENTIAL OF RED102♠x♠J-1-2
-5.3Round 11FAR EAST142♠♦Q-1-5
-5.6Round 8FUJIAN BOSSSOFT132♠♠4=-6
-5.7Round 8FUJIAN BOSSSOFT126♣♦5=+2
-5.8Round 7XINJIANGYILI93NT♠2+2+12
-6.0Round 13ONE ESSENTIAL OF RED85♦♠4+1-11
-6.5Round 6THAILAND Mixed296♠♦J=+0
-6.5Round 15YUNNAN274♥♠K=-8
-6.6Round 10PSG72NT♣9+1-10
-6.8Round 12HUAXINHUANBAO225♣♦J=-11
-7.3Round 1PD TIMES13NT♥Q-2-11
-7.3Round 11FAR EAST134♥♦4-1-6
-7.5Round 12HUAXINHUANBAO293NT♥7-2-8
-7.8Round 1PD TIMES23NT♥3+1-7
-7.9Round 3NORWAY Seniors304♠x♥A-4-8
-8.1Round 2WUHAN ENGINEERING193NT♦10+2-11
-9.3Round 14ZJJDWUHANYUAN113NT♣7-3-11
-10.7Round 14ZJJDWUHANYUAN155♦x♠5-3-14