CHEN Biao · HUAXINHUANBAO

586rank
-99.6Butler · 140 bds
-0.71per board
±4.6swing
-0.99vs par /bd · #524/567
-0.64adjusted /bd
Butler per round: -20.6 -3.6 -10.8 -12.4 -14.5 -15.8 4.3 -22.4 -13.4 10.3 -5.6 19.4 -33.3 18.8by round

vs par split: bidding -0.26 · play -0.73

Strength of schedule: opponents averaged +0.07/bd (a tough draw) → opponent-adjusted -0.64/bd

Card play — on target: opening leads 62.9% #550 of 567 · declarer play 63.4% #532 of 567 · defence 71.8% #547 of 567

Card play by contract type — on target
vs NTvs a suit
Opening leads50.0% (8)66.7% (27)
Declarer play50.0% (10)67.7% (31)
Defence65.0% (20)74.5% (51)

Opening leads by suit led: ♠ 70.0% (10) · ♥ 63.6% (11) · ♦ 37.5% (8) · ♣ 83.3% (6)

vs par by strain: NT -0.32 (41) · a suit -1.27 (99)

vs par by level: part-score -0.66 (61) · game -1.37 (70) · slam -0.33 (9)

By role: declaring -1.19/bd (-3.29 vs par · 69) · defending -0.25/bd (+1.24 vs par · 71)

By vulnerability: vulnerable -0.82/bd (-0.77 vs par · 70) · not vulnerable -0.60/bd (-1.21 vs par · 70)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1X.ShiG.Manara – D.AttanasioClosed10-20.6-2.06-2.80
Round 2X.ShiH.Zhang – Z.LuoOpen10-3.6-0.36-1.70
Round 3C.WangC.Madsen – O.PavlushkoOpen10-10.8-1.08+0.00
Round 4C.WangS.Basu – B.DeyClosed10-12.4-1.24-1.20
Round 5C.WangX.Zhang – Z.ZhuClosed10-14.5-1.45-2.00
Round 6C.WangD.Rotchell – P.MathieuOpen10-15.8-1.58-0.60
Round 7C.WangV.Desai – K.SamantClosed10+4.3+0.43+2.80
Round 8X.ShiX.Liu – Y.WangOpen10-22.4-2.24-2.40
Round 9C.WangW.Zhang – D.JiangClosed10-13.4-1.34-5.40
Round 10C.WangM.Ahasan – S.HaqueClosed10+10.3+1.03-1.10
Round 11C.WangK.Janebunjong – K.PlengsapClosed10-5.6-0.56-0.90
Round 12X.ShiM.O'Briain – D.O'GormanOpen10+19.4+1.94+1.60
Round 13X.ShiJ.Mcavoy – D.FraserOpen10-33.3-3.33-4.60
Round 15X.ShiJ.Tutty – D.BeauchampOpen10+18.8+1.88+4.40

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
+11.7Round 15AUSTRALIA MIXED295♥x♥5-2+14
+9.4Round 10BANGLADESH44♠x♥3-2+8
+9.1Round 12IRELAND286♥♣2-2+14
+8.2Round 2HIIMOTOR115♦x♥8+1+6
+8.0Round 6CARIBBEAN PIRATES213NTx♦8-3+11
+7.7Round 3AURUSSIA286♣♠Q-1+11
+7.7Round 9ONE ESSENTIAL OF RED236♦♥9=-8
+7.7Round 9ONE ESSENTIAL OF RED304♠♦9=+0
+6.9Round 2HIIMOTOR155♥♠A-1+6
+6.6Round 4INDIA TSANGPO44♥♠J-1+13
+6.0Round 12IRELAND305♦♥K-5+9
+5.7Round 5ZJJDWUHANYUAN173NT♣J=+6
+5.6Round 12IRELAND274♠♥5-1+10
+5.2Round 11THAILAND Mixed194♣♥K=+10
+5.2Round 15AUSTRALIA MIXED273♠♥6=+6
+5.1Round 11THAILAND Mixed115♦♣10-1+4
+4.9Round 12IRELAND264♥♠6-1+6
+4.8Round 7NAMO KK71NT♣K=+5
+4.8Round 10BANGLADESH63NT♦10-2+8
+4.7Round 1ITALY Mixed44♠♣9-1+6
+4.6Round 7NAMO KK65♦x♥6+1+6
+4.6Round 11THAILAND Mixed133NT♣6=+10
+4.4Round 6CARIBBEAN PIRATES234♠♣5-1+6
+4.4Round 7NAMO KK91NT♠2+1+15
+3.9Round 10BANGLADESH73NT♥2+1+1
+3.9Round 12IRELAND226♥♦A=+0
+3.9Round 13WE THE NORTH104♥♠6-2+8
+3.6Round 8XINJIANGYILI124♥♦K+2+11
+3.6Round 10BANGLADESH12NT♦10-2+0
+3.2Round 7NAMO KK11NT♦4=+5
+2.8Round 7NAMO KK54♣♥K-1+5
+2.8Round 15AUSTRALIA MIXED305♣♠6-1+5
+2.7Round 3AURUSSIA274♥♣2=+3
+2.7Round 15AUSTRALIA MIXED212♥♦3+1+0
+2.4Round 6CARIBBEAN PIRATES262♠♦A-2+2
+2.3Round 1ITALY Mixed33♥♦K+1+1
+2.1Round 1ITALY Mixed62♥♣A+1-7
+2.1Round 5ZJJDWUHANYUAN142NT♥5=+6
+1.8Round 2HIIMOTOR192♠♣3=+0
+1.8Round 15AUSTRALIA MIXED221NT♠5+3+9
+1.8Round 15AUSTRALIA MIXED232♠♠5+1+1
+1.7Round 3AURUSSIA232♠♦3-1+5
+1.7Round 4INDIA TSANGPO82♠♣9-1+4
+1.6Round 6CARIBBEAN PIRATES283♠♦6=+0
+1.5Round 10BANGLADESH91NT♥A=+5
+1.3Round 15AUSTRALIA MIXED263♠♣A-2+10
+0.8Round 1ITALY Mixed101NT♥3=+1
+0.7Round 4INDIA TSANGPO102♦♦5-1+0
+0.7Round 12IRELAND232♥♥6=+1
+0.6Round 2HIIMOTOR143♦♥2=+5
+0.5Round 9ONE ESSENTIAL OF RED263NT♥9+2-12
+0.5Round 15AUSTRALIA MIXED253NT♣4+1+0
+0.3Round 2HIIMOTOR173♠♥2=-7
+0.3Round 3AURUSSIA245♦♥K=+2
+0.2Round 10BANGLADESH32♣♦10+3-6
+0.2Round 11THAILAND Mixed182♠♣6=+0
-0.0Round 5ZJJDWUHANYUAN122♥♥2-1-2
-0.0Round 8XINJIANGYILI114♠♥K+1+0
+0.0Round 8XINJIANGYILI143NT♣5+2+0
-0.0Round 10BANGLADESH86NT♣7=-11
-0.0Round 12IRELAND292♠♣2+1+0
-0.1Round 3AURUSSIA223NT♣Q-1-5
-0.1Round 9ONE ESSENTIAL OF RED242♥♦8-1-4
-0.1Round 13WE THE NORTH93NT♠8+1+1
-0.2Round 5ZJJDWUHANYUAN113♠♠4=+0
-0.3Round 3AURUSSIA304♥♠A+1+0
-0.4Round 4INDIA TSANGPO54♠♥K+1-1
-0.4Round 7NAMO KK83NT♦6+2+10
-0.5Round 8XINJIANGYILI153NT♠8=-1
-0.5Round 11THAILAND Mixed201NT♥Q-1+0
-0.6Round 1ITALY Mixed13♠♣5+1-6
-0.6Round 4INDIA TSANGPO34♥♣6+2-11
-0.6Round 11THAILAND Mixed123NT♣6=+1
-0.8Round 15AUSTRALIA MIXED243NT♠5+3-1
-0.9Round 4INDIA TSANGPO62♥♠7-1+0
-0.9Round 6CARIBBEAN PIRATES242♥♣6=+0
-1.0Round 12IRELAND243NT♥7-3-7
-1.2Round 1ITALY Mixed71NT♥6+2-1
-1.2Round 8XINJIANGYILI202♥♣5=-6
-1.2Round 11THAILAND Mixed173♥♠10-1-8
-1.3Round 5ZJJDWUHANYUAN203♠♥3+1-1
-1.6Round 2HIIMOTOR131NT♥6+1+0
-1.6Round 5ZJJDWUHANYUAN152♥♠A=-5
-1.7Round 9ONE ESSENTIAL OF RED254♥♦6+2-11
-1.8Round 13WE THE NORTH42♥♣3+1-1
-1.9Round 12IRELAND211NT♣5-2-3
-2.1Round 3AURUSSIA252♠♥3-3-6
-2.2Round 4INDIA TSANGPO14♠x♦A-3-2
-2.2Round 7NAMO KK103♥♦5-1+1
-2.3Round 10BANGLADESH102♠♦2+1-1
-2.6Round 13WE THE NORTH74♠♣5+2-1
-2.7Round 7NAMO KK22♠♣A=-5
-2.7Round 9ONE ESSENTIAL OF RED283♣♥A-1+0
-3.1Round 2HIIMOTOR163♦♠10=+0
-3.2Round 9ONE ESSENTIAL OF RED225♦♠6-1-5
-3.6Round 3AURUSSIA214♥♣7+1+0
-3.6Round 5ZJJDWUHANYUAN194♠♥5-1-5
-3.6Round 6CARIBBEAN PIRATES276♠♣A-2-9
-3.6Round 8XINJIANGYILI163♥♣K-2+0
-3.6Round 9ONE ESSENTIAL OF RED274♥x♣6-2+3
-3.7Round 8XINJIANGYILI193NT♠8-1-10
-3.9Round 4INDIA TSANGPO92♠♥10-1+1
-3.9Round 8XINJIANGYILI174♣♠8=-1
-4.0Round 10BANGLADESH53♠♥A-2-7
-4.1Round 13WE THE NORTH22♠♠3+1-12
-4.3Round 5ZJJDWUHANYUAN183NT♠6-2-8
-4.6Round 7NAMO KK33NT♥5-2-6
-4.6Round 11THAILAND Mixed163NT♠6-2-6
-4.9Round 1ITALY Mixed54♠♠6+1-1
-4.9Round 13WE THE NORTH64♥♠8-1-10
-5.0Round 5ZJJDWUHANYUAN133NT♣10+1+0
-5.1Round 2HIIMOTOR182♠♥10-2-3
-5.1Round 13WE THE NORTH54♥♦A+1-11
-5.2Round 3AURUSSIA294♠♥J=-10
-5.2Round 6CARIBBEAN PIRATES221NT♠6-2-6
-5.5Round 6CARIBBEAN PIRATES303NT♠4=+0
-5.6Round 7NAMO KK44♦♠K+2-8
-5.6Round 8XINJIANGYILI132♠♦3=-6
-5.6Round 13WE THE NORTH33NT♥Q=+1
-5.7Round 2HIIMOTOR204♠♥10-1-12
-5.9Round 2HIIMOTOR124♠x♥Q-1-12
-6.0Round 4INDIA TSANGPO74♠♣K-1-6
-6.0Round 13WE THE NORTH85♦♠A+1-11
-6.3Round 5ZJJDWUHANYUAN163NT♥3-3-11
-6.5Round 6CARIBBEAN PIRATES296♠♦J=+0
-6.6Round 11THAILAND Mixed154♠♦6-1-13
-6.8Round 10BANGLADESH23♠♥A+1-8
-7.0Round 13WE THE NORTH14♥♦Q-1-10
-7.2Round 11THAILAND Mixed142♠♦9-3-7
-7.3Round 1ITALY Mixed95♦x♦5-2-11
-7.4Round 4INDIA TSANGPO25♥x♦A=-10
-7.5Round 8XINJIANGYILI183♦♣5+2-11
-7.6Round 9ONE ESSENTIAL OF RED214♠x♦A=-5
-7.9Round 12IRELAND254♥♣5+2-14
-8.0Round 1ITALY Mixed83NT♦5+3-2
-8.2Round 15AUSTRALIA MIXED286NT♦2=+0
-8.5Round 1ITALY Mixed23NT♠7+2-8
-10.4Round 9ONE ESSENTIAL OF RED294♠x♥A=-12
-10.5Round 6CARIBBEAN PIRATES253NT♥2=-10
-11.9Round 3AURUSSIA266♥♠K=+0