YU Dan · YUNNAN

580rank
-100.8Butler · 150 bds
-0.67per board
±4.4swing
-1.11vs par /bd · #532/567
-0.81adjusted /bd
Butler per round: -12.2 21.4 -2.4 5.5 -13.6 0 8.1 12.7 -23.8 -23 -27.1 -22 -4.5 -0.1 -19.8by round

vs par split: bidding -0.35 · play -0.76

Strength of schedule: opponents averaged -0.14/bd (an easy draw) → opponent-adjusted -0.81/bd

Card play — on target: opening leads 85.7% #132 of 567 · declarer play 76.9% #274 of 567 · defence 76.0% #513 of 567

Card play by contract type — on target
vs NTvs a suit
Opening leads66.7% (12)95.7% (23)
Declarer play68.8% (16)82.6% (23)
Defence88.0% (25)70.0% (50)

Opening leads by suit led: ♠ 80.0% (10) · ♥ 100.0% (6) · ♦ 66.7% (6) · ♣ 92.3% (13)

vs par by strain: NT -1.58 (48) · a suit -0.88 (102)

vs par by level: part-score -1.85 (61) · game -0.67 (84) · slam +0.60 (5)

By role: declaring -0.91/bd (-3.21 vs par · 75) · defending -0.43/bd (+1.00 vs par · 75)

By vulnerability: vulnerable -0.18/bd (-0.37 vs par · 75) · not vulnerable -1.16/bd (-1.84 vs par · 75)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1R.LiM.Islam – M.ChowdhuryClosed10-12.2-1.22-1.60
Round 2R.LiX.Zhang – X.HuangOpen10+21.4+2.14+1.00
Round 3R.LiF.Karwur – J.BojohClosed10-2.4-0.24+0.80
Round 4R.LiK.Dwyer – S.HuangClosed10+5.5+0.55+1.00
Round 5R.LiS.Orlov – M.KrasnosselskiClosed10-13.6-1.36-2.00
Round 6R.LiJ.Shen – J.LiOpen10+0.0+0.00+1.10
Round 7R.LiX.Li – D.HuClosed10+8.1+0.81+4.00
Round 8R.LiY.Luo – W.SongOpen10+12.7+1.27+1.20
Round 9R.LiJ.Hu – Y.ChenOpen10-23.8-2.38-5.80
Round 10R.LiJ.Ge – H.LiuClosed10-23.0-2.30-3.90
Round 11R.LiT.Jiang – B.DuOpen10-27.1-2.71-2.90
Round 12R.LiH.Chen – X.LiOpen10-22.0-2.20-2.20
Round 13Y.XunS.Malik – M.BandeshaClosed10-4.5-0.45-2.00
Round 14Y.XunP.Rankin – S.FischerClosed10-0.1-0.01-1.50
Round 15Y.XunR.Milne – B.O'BrienOpen10-19.8-1.98-3.80

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
+13.3Round 6NANGANG POWER297♣♣8-2+17
+13.1Round 4MILLENS25♣x♥K=+14
+10.7Round 4MILLENS16♣♠K-1+11
+8.4Round 2FUJIAN BOSSSOFT153♠♦A=+8
+6.8Round 13PK NZ54♥♥4-2+0
+6.8Round 14AUSTRALIA MIXED154♠♦3-2+0
+6.5Round 15IRELAND274♥♠K=+8
+6.3Round 2FUJIAN BOSSSOFT174♠♥A=+0
+6.0Round 10JSQX NJZS BRIDGECLUB35♣♥A=+0
+5.2Round 2FUJIAN BOSSSOFT193NT♠7-1+6
+5.0Round 3INDONESIA Open295♥♠K-1+1
+4.7Round 1BANGLADESH44♥♦9-1+6
+4.6Round 11JINSHUO133NT♣J=+10
+4.5Round 1BANGLADESH25♦♠4-2+6
+4.5Round 7CHANG HONG105♦x♠Q-1+8
+4.5Round 13PK NZ86♦♠9=+0
+4.2Round 7CHANG HONG52♥♥J=+6
+3.9Round 2FUJIAN BOSSSOFT182♠♣A-3+6
+3.8Round 2FUJIAN BOSSSOFT163NT♥4=+7
+3.6Round 5RUSSIA Open182NT♠A=-1
+3.6Round 8GUIZHOU ZHENGYE124♥♦K+2+11
+3.5Round 3INDONESIA Open253NT♣2-1+0
+3.5Round 8GUIZHOU ZHENGYE163NT♥9-2+7
+3.5Round 14AUSTRALIA MIXED184♥♦6+1+4
+3.4Round 8GUIZHOU ZHENGYE202♣♥2=-1
+3.3Round 6NANGANG POWER253NT♥3-2+7
+3.3Round 7CHANG HONG44♥♠K=+3
+3.3Round 10JSQX NJZS BRIDGECLUB54♥♣K-2+0
+3.2Round 8GUIZHOU ZHENGYE184♠♣K+1+0
+3.1Round 1BANGLADESH84♠♥4-1+10
+3.1Round 15IRELAND214♥♦6-1+6
+2.8Round 13PK NZ13NT♣5=-1
+2.7Round 3INDONESIA Open274♥♠4=+3
+2.7Round 10JSQX NJZS BRIDGECLUB24♠♥A=+3
+2.5Round 12MINGXIN GROUP302♦♠A=+6
+2.4Round 14AUSTRALIA MIXED133♠♥2=+1
+2.4Round 14AUSTRALIA MIXED203♥♦A-1-1
+2.3Round 11JINSHUO201NT♠6-2+3
+2.0Round 4MILLENS62NT♠6-2+3
+1.9Round 8GUIZHOU ZHENGYE175♦♥6-2+5
+1.9Round 13PK NZ93NT♥5+3+3
+1.7Round 6NANGANG POWER213NT♥2-4+7
+1.7Round 12MINGXIN GROUP256♦♠8+1-11
+1.5Round 7CHANG HONG64♥x♦6-2+3
+1.3Round 7CHANG HONG83NT♦6=+11
+1.2Round 9REIGNWOOD283♥♦4-1+4
+1.1Round 3INDONESIA Open265♥♠K+1+13
+1.0Round 10JSQX NJZS BRIDGECLUB43♠♥4-1-1
+1.0Round 12MINGXIN GROUP212♠♦A=+0
+0.9Round 6NANGANG POWER222♥♦Q+1+0
+0.9Round 7CHANG HONG22♠♣A-1-1
+0.8Round 2FUJIAN BOSSSOFT114♥x♣A-2-3
+0.8Round 7CHANG HONG32♦♠2+1+0
+0.8Round 15IRELAND243NT♠5+3+1
+0.7Round 12MINGXIN GROUP262♣♠3=+2
+0.6Round 2FUJIAN BOSSSOFT143♦♦4=+5
+0.6Round 5RUSSIA Open111NT♣3+1+1
+0.6Round 5RUSSIA Open163♣♠J+1-7
+0.6Round 9REIGNWOOD291NT♣Q-2-2
+0.5Round 8GUIZHOU ZHENGYE153NT♣K+1+0
+0.5Round 9REIGNWOOD263NT♥8+2-12
+0.5Round 15IRELAND253NT♠9=+1
+0.3Round 8GUIZHOU ZHENGYE134♦♠A=+0
-0.0Round 8GUIZHOU ZHENGYE114♠♥A+1+0
+0.0Round 8GUIZHOU ZHENGYE143NT♣6+2+0
-0.1Round 2FUJIAN BOSSSOFT204♥♣A-2-7
-0.1Round 3INDONESIA Open223NT♥10-1-5
-0.2Round 5RUSSIA Open192♠♦3=-1
-0.3Round 12MINGXIN GROUP232♥♥6+1+0
-0.4Round 4MILLENS54♠♥A+1-1
-0.4Round 5RUSSIA Open202♥♦4+1+0
-0.6Round 1BANGLADESH13♠♥7+1-6
-0.6Round 4MILLENS35♥♦4+1-11
-0.6Round 11JINSHUO123NT♣4=+1
-0.7Round 4MILLENS73♠♣Q=+0
-0.8Round 11JINSHUO182♠♣2+1-1
-0.9Round 6NANGANG POWER243♦♣9=+0
-0.9Round 13PK NZ42♠♣4-1+0
-1.0Round 12MINGXIN GROUP292♠♣7=-1
-1.0Round 13PK NZ74♠♣2=+1
-1.2Round 3INDONESIA Open304♥♣6+2-1
-1.2Round 11JINSHUO173♥♠3-1-8
-1.3Round 12MINGXIN GROUP284♥♥J+2+11
-1.4Round 14AUSTRALIA MIXED141NT♠4+1+0
-1.5Round 14AUSTRALIA MIXED164♠♥K-1-5
-1.6Round 2FUJIAN BOSSSOFT131NT♦Q+1+0
-1.6Round 5RUSSIA Open152♥♠A=-5
-1.6Round 6NANGANG POWER233♥♣5=+0
-1.6Round 15IRELAND283NT♣2+4-10
-1.7Round 9REIGNWOOD255♥♦8+1-11
-1.7Round 10JSQX NJZS BRIDGECLUB11NT♦10=-5
-1.7Round 14AUSTRALIA MIXED174♠♣6+1+0
-1.8Round 1BANGLADESH102♠♣A-2-2
-1.8Round 15IRELAND232♠♠3+1-1
-1.9Round 7CHANG HONG14♥♦8-2+0
-1.9Round 9REIGNWOOD243♥♥4-2-5
-2.0Round 6NANGANG POWER275♠♥A-1-8
-2.2Round 4MILLENS82♠♥10=+0
-2.3Round 7CHANG HONG72♣x♥K-1-3
-2.3Round 10JSQX NJZS BRIDGECLUB102♠♦4+1-1
-2.5Round 5RUSSIA Open143♣♦7-1+3
-2.7Round 3INDONESIA Open214♥♠K=+1
-2.7Round 14AUSTRALIA MIXED121♥x♣4-2-2
-2.8Round 3INDONESIA Open231NT♣2=+1
-2.8Round 15IRELAND305♣♣10-1-5
-2.9Round 10JSQX NJZS BRIDGECLUB92NT♥4-1+1
-3.2Round 13PK NZ23NT♣Q-1-12
-3.3Round 9REIGNWOOD305♠♦Q-2-11
-3.4Round 9REIGNWOOD233NT♦7+2-14
-3.5Round 14AUSTRALIA MIXED112♠♣5+2-6
-3.6Round 1BANGLADESH32NT♦4-1-5
-3.6Round 5RUSSIA Open121NT♠J=-5
-3.7Round 3INDONESIA Open245♦x♥4=-3
-3.7Round 8GUIZHOU ZHENGYE192NT♥Q-1-10
-3.8Round 1BANGLADESH62♠♦8=-11
-4.0Round 11JINSHUO193NT♦2=+0
-4.1Round 6NANGANG POWER284♠♥K-1-6
-4.2Round 1BANGLADESH54♠♣8=+0
-4.2Round 1BANGLADESH93♥♦A=-8
-4.2Round 3INDONESIA Open283NT♦4+4-2
-4.2Round 7CHANG HONG93NT♠3=+13
-4.4Round 5RUSSIA Open133NT♦9=+1
-4.4Round 14AUSTRALIA MIXED193♠♣A-3-6
-4.6Round 11JINSHUO113NT♠4=-7
-4.8Round 4MILLENS91NT♠A=+0
-4.8Round 9REIGNWOOD214♥♠J+1-1
-4.8Round 9REIGNWOOD223NT♣9-2-6
-4.9Round 13PK NZ64♥♣5-1-10
-4.9Round 13PK NZ104♠x♥6-1-2
-5.0Round 4MILLENS44♥♠J=+1
-5.1Round 6NANGANG POWER263♣♣8=-6
-5.3Round 11JINSHUO145♣♦Q-1-5
-5.5Round 6NANGANG POWER303NT♠4=+0
-5.6Round 11JINSHUO163NT♣9-3-7
-5.6Round 13PK NZ33NT♦3=+1
-5.7Round 5RUSSIA Open175♣♦A-2-6
-5.9Round 2FUJIAN BOSSSOFT124♠x♥Q-1-12
-6.2Round 9REIGNWOOD274♠♥A=+0
-6.2Round 12MINGXIN GROUP274♠♥J+3-3
-6.3Round 1BANGLADESH71NTx♥4+1-6
-6.3Round 15IRELAND295♥♠K-1-12
-6.6Round 4MILLENS103♣♠K-2-7
-6.6Round 10JSQX NJZS BRIDGECLUB72NT♠K+1-10
-6.9Round 15IRELAND223NT♦8-1-12
-7.6Round 12MINGXIN GROUP243♦♣6+2-12
-9.7Round 10JSQX NJZS BRIDGECLUB64♠♣10=-10
-11.3Round 15IRELAND263NT♣8-4-14
-11.5Round 12MINGXIN GROUP226♣♦4-1-14
-11.9Round 11JINSHUO154NT♦Q-5-15
-12.8Round 10JSQX NJZS BRIDGECLUB83♦♣4+3-16