🇨🇳 CHEN Yichao · CHINA

56rank
+35.4Butler · 220 bds
+0.16per board
±4.4swing
+0.13vs par /bd · #72/165
+0.13adjusted /bd
Butler per round: 15.4 2.8 -7.1 -4.4 -8.8 -0.7 -8.9 -10.6 -8.7 23.3 25.1 -7 -9.1 14.8 -22.6 8.6 -6.3 13.6 11 -3.3 -6.7 25by round

vs par split: bidding +0.08 · play +0.06

Strength of schedule: opponents averaged -0.03/bd (an average draw) → opponent-adjusted +0.13/bd

Card play — on target: opening leads 92.0% #2 of 165 · declarer play 67.2% #144 of 165 · defence 95.7% #1 of 165

Card play by contract type — on target
vs NTvs a suit
Opening leads87.5% (8)92.9% (42)
Declarer play77.3% (22)61.5% (39)
Defence90.0% (20)97.3% (74)

Opening leads by suit led: ♠ 88.9% (9) · ♥ 83.3% (12) · ♦ 94.4% (18) · ♣ 100.0% (11)

vs par by strain: NT +0.49 (53) · a suit +0.03 (166)

vs par by level: part-score +1.27 (86) · game -0.46 (118) · slam -1.60 (15)

By role: declaring +0.32/bd (-1.26 vs par · 126) · defending -0.05/bd (+1.99 vs par · 94)

By vulnerability: vulnerable +0.52/bd (-0.09 vs par · 110) · not vulnerable -0.20/bd (+0.34 vs par · 110)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1B.FuS.Lang – L.ChemalyOpen10+15.4+1.54+2.20
Round 2B.FuR.Benin-Barr – Y.ZackOpen10+2.8+0.28+0.10
Round 4B.FuF.Hinden – G.OsborneOpen10-7.1-0.71-4.30
Round 6B.FuG.Nabil – A.TaziOpen10-4.4-0.44+2.30
Round 8B.FuB.Cronier – P.CronierClosed10-8.8-0.88-1.70
Round 9B.FuD.Korbel – S.ShiClosed10-0.7-0.07+1.20
Round 10B.FuP.Nehmert – C.FroehnerOpen10-8.9-0.89+1.40
Round 11B.FuR.Furuta – K.FurutaOpen10-10.6-1.06-3.00
Round 12B.FuC.Szabo – B.FischerClosed10-8.7-0.87-3.50
Round 13B.FuM.Fourcaudot – S.BlankOpen10+23.3+2.33+3.20
Round 14B.FuG.Rubio – A.ZemanOpen10+25.1+2.51+1.90
Round 15B.FuK.Asplund – S.Asplund SivelindOpen10-7.0-0.70-1.20
Round 16B.FuB.Furlan – L.MenezesClosed10-9.1-0.91-1.90
Round 17B.FuK.Mak – T.TangOpen10+14.8+1.48+0.00
Round 19B.FuD.Kazmucha – M.HutyraClosed10-22.6-2.26-4.20
Round 20B.FuA.Martorell – A.WasikClosed10+8.6+0.86+1.80
Round 22B.FuA.Meyerson – E.MeyersonOpen10-6.3-0.63+2.00
Round 24B.FuB.Satyanarayana – K.NadarClosed10+13.6+1.36+3.30
Round 25B.FuT.Ozbay – H.OzgurOpen10+11.0+1.10+1.10
Round 27B.FuM.Drogemuller – A.Rolf-LarsenOpen10-3.3-0.33+0.30
Round 28B.FuP.Pejacsevich – M.MayorgaClosed10-6.7-0.67-0.70
Round 29B.FuR.Sivertsvik – S.EvenstadClosed10+25.0+2.50+2.50

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
+11.9Round 29🇳🇴 NORWAY192♣x♣K-4+14
+11.7Round 25🇹🇷 TURKIYE44♥♠10=+13
+11.4Round 2🇮🇱 ISRAEL147♥♥3-1+14
+10.9Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND106♣♥K=-8
+10.1Round 20🇪🇸 SPAIN147♠♥K-1+14
+9.9Round 24🇮🇳 INDIA283NT♦9=+10
+9.4Round 14🇨🇱 CHILE145♦x♠Q=+10
+9.2Round 13🇨🇦 CANADA105♦♣K=-1
+9.0Round 12🇭🇺 HUNGARY274♥♣3-1+10
+8.9Round 10🇩🇪 GERMANY93♣x♠K-3+8
+8.9Round 13🇨🇦 CANADA55♠♦10+1+11
+8.1Round 29🇳🇴 NORWAY124♥♣J=+11
+8.0Round 20🇪🇸 SPAIN114♥♥8=+7
+8.0Round 29🇳🇴 NORWAY206♠♦J=+0
+7.4Round 10🇩🇪 GERMANY104♥♠A=+3
+7.3Round 16🇧🇷 BRAZIL53NT♣10+1-1
+7.0Round 17🇭🇰 HONG KONG CHINA205♣♠K=+0
+6.9Round 6🇲🇦 MOROCCO274♠♥K=+1
+6.6Round 11🇯🇵 JAPAN185♦x♦7-2+5
+6.1Round 22🇨🇭 SWITZERLAND32♦x♦A-1+7
+5.8Round 1🇿🇦 SOUTH AFRICA24♠♦A-3+9
+5.7Round 28🇦🇷 ARGENTINA72NT♠3-2+8
+5.6Round 20🇪🇸 SPAIN123♠♦4+1+12
+5.4Round 19🇵🇱 POLAND43♥♣A-1+1
+5.3Round 14🇨🇱 CHILE151NT♥2+3+7
+5.1Round 17🇭🇰 HONG KONG CHINA116♠♥6=+0
+4.9Round 14🇨🇱 CHILE172NT♦A-2+6
+4.5Round 1🇿🇦 SOUTH AFRICA34♥♠9=+3
+4.5Round 13🇨🇦 CANADA84♥♠9-1+10
+4.5Round 24🇮🇳 INDIA272NT♣7=+6
+4.4Round 8🇫🇷 FRANCE123NT♣6+1-1
+4.3Round 29🇳🇴 NORWAY142♠♦J=+6
+4.2Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND74♠♥A-3+4
+4.1Round 10🇩🇪 GERMANY83NT♠4+1+1
+4.1Round 24🇮🇳 INDIA222♥♠2-2+3
+4.1Round 25🇹🇷 TURKIYE95♥♠6=+0
+4.0Round 17🇭🇰 HONG KONG CHINA194♠♥A-2-6
+4.0Round 25🇹🇷 TURKIYE103NT♣3-2+7
+3.9Round 11🇯🇵 JAPAN132♠♥8-3-8
+3.4Round 12🇭🇺 HUNGARY282♥♦Q+1+0
+3.4Round 12🇭🇺 HUNGARY303♥♥10=+1
+3.3Round 19🇵🇱 POLAND74♠x♦K-2+4
+3.3Round 22🇨🇭 SWITZERLAND103♠♦2=+10
+3.3Round 28🇦🇷 ARGENTINA25♣x♥Q-1+6
+3.2Round 6🇲🇦 MOROCCO282♥♣3+1+10
+3.2Round 27🇩🇰 DENMARK272♠♦8-1+4
+3.1Round 8🇫🇷 FRANCE132♥♥2-1+5
+3.0Round 1🇿🇦 SOUTH AFRICA56♦♥2=+0
+3.0Round 8🇫🇷 FRANCE184♥♦2=+0
+3.0Round 14🇨🇱 CHILE194♠♣2=+0
+3.0Round 24🇮🇳 INDIA264♠x♦A-1+8
+3.0Round 29🇳🇴 NORWAY133NT♠8=+17
+2.8Round 20🇪🇸 SPAIN193NT♠7+3+2
+2.6Round 14🇨🇱 CHILE204♥♣A+1+1
+2.2Round 16🇧🇷 BRAZIL23♣♠K=-1
+2.2Round 17🇭🇰 HONG KONG CHINA135♣♦2+1+0
+2.2Round 27🇩🇰 DENMARK233♦♥9=+1
+2.1Round 13🇨🇦 CANADA34♥♥3+1+1
+2.1Round 20🇪🇸 SPAIN162♥♣4-2-1
+2.1Round 25🇹🇷 TURKIYE15♣♠3+2-11
+2.1Round 27🇩🇰 DENMARK263♣♦5-1+11
+2.1Round 27🇩🇰 DENMARK294♥♦2+2+1
+2.0Round 9🇺🇸 U.S.A.244♠♥Q-2+1
+1.9Round 2🇮🇱 ISRAEL181NT♠2+5+3
+1.9Round 14🇨🇱 CHILE122♠♣6+2+1
+1.9Round 25🇹🇷 TURKIYE52♠♥5+1+1
+1.8Round 2🇮🇱 ISRAEL173♠♠2-1-2
+1.8Round 19🇵🇱 POLAND25♣♦A-1+6
+1.8Round 27🇩🇰 DENMARK283♠♣9-3-8
+1.7Round 1🇿🇦 SOUTH AFRICA92♠♥4-1+5
+1.7Round 13🇨🇦 CANADA23♦♠A-1+5
+1.7Round 24🇮🇳 INDIA236♣x♠A-1+9
+1.7Round 29🇳🇴 NORWAY163NT♣2+2+0
+1.5Round 1🇿🇦 SOUTH AFRICA74♠♦K+1+1
+1.5Round 9🇺🇸 U.S.A.291NT♠7+1+6
+1.5Round 15🇸🇪 SWEDEN233♥♦2-2+3
+1.4Round 8🇫🇷 FRANCE165♥x♠7-3+0
+1.4Round 10🇩🇪 GERMANY24♥♦K=+0
+1.4Round 11🇯🇵 JAPAN172♥♥10-2+7
+1.3Round 2🇮🇱 ISRAEL194♥♦10+1+0
+1.3Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND64♠♦K=-1
+1.3Round 12🇭🇺 HUNGARY223♠♠7=+0
+1.3Round 14🇨🇱 CHILE161♠x♥9-3-3
+1.0Round 6🇲🇦 MOROCCO253NT♠J+1+0
+1.0Round 28🇦🇷 ARGENTINA94♥♠A-1-5
+0.9Round 15🇸🇪 SWEDEN263NT♥J+1-1
+0.9Round 22🇨🇭 SWITZERLAND23♠♦9=+0
+0.8Round 6🇲🇦 MOROCCO234♠♦5=+0
+0.8Round 17🇭🇰 HONG KONG CHINA183NT♦7+1+1
+0.8Round 22🇨🇭 SWITZERLAND44♦♥J=+0
+0.7Round 1🇿🇦 SOUTH AFRICA14♥♦10-1+10
+0.7Round 13🇨🇦 CANADA92♠♥A+2+1
+0.7Round 15🇸🇪 SWEDEN223NT♣3=-2
+0.7Round 16🇧🇷 BRAZIL43♦♠4=+11
+0.7Round 22🇨🇭 SWITZERLAND51NT♦4=+2
+0.7Round 28🇦🇷 ARGENTINA63♣♥K=-7
+0.6Round 12🇭🇺 HUNGARY244♠♥7=+0
+0.6Round 13🇨🇦 CANADA64♥♣K+1+0
+0.6Round 17🇭🇰 HONG KONG CHINA163♥♦A+1+10
+0.5Round 9🇺🇸 U.S.A.213NT♠3=+1
+0.4Round 2🇮🇱 ISRAEL115♠x♥A-3+0
+0.4Round 9🇺🇸 U.S.A.232♠♥Q-1+5
+0.4Round 16🇧🇷 BRAZIL73NT♦3+2+1
+0.4Round 19🇵🇱 POLAND82♠♣10-1+2
+0.3Round 11🇯🇵 JAPAN123♣♣7-1-1
+0.3Round 15🇸🇪 SWEDEN284♥♦4=+0
+0.3Round 17🇭🇰 HONG KONG CHINA172♠♥6=+0
+0.2Round 9🇺🇸 U.S.A.264NT♥8+1+0
+0.2Round 15🇸🇪 SWEDEN214♠♦Q=+0
+0.1Round 14🇨🇱 CHILE181NT♥6-1+3
-0.0Round 9🇺🇸 U.S.A.303NT♣Q=+0
+0.0Round 28🇦🇷 ARGENTINA12♠♥10-1+1
+0.0Round 28🇦🇷 ARGENTINA44♥♦K+1+0
-0.1Round 1🇿🇦 SOUTH AFRICA44♠♥10-1-5
-0.1Round 1🇿🇦 SOUTH AFRICA103NT♠10+1-1
-0.1Round 9🇺🇸 U.S.A.254♥♠J=+1
-0.1Round 10🇩🇪 GERMANY64♠♦K+1+0
-0.1Round 27🇩🇰 DENMARK255♥♦5=+13
-0.2Round 6🇲🇦 MOROCCO302NT♣8-1+1
-0.2Round 12🇭🇺 HUNGARY293♠♣10=-10
-0.2Round 22🇨🇭 SWITZERLAND73♦♥5-1+11
-0.3Round 19🇵🇱 POLAND52♥♦A-1-4
-0.4Round 2🇮🇱 ISRAEL124♠♦Q+1+0
-0.4Round 6🇲🇦 MOROCCO293NT♥6+1-1
-0.4Round 11🇯🇵 JAPAN142♥♠K=+1
-0.4Round 11🇯🇵 JAPAN203NT♦4-1-6
-0.4Round 13🇨🇦 CANADA45♥♦A=+0
-0.5Round 6🇲🇦 MOROCCO211NT♦7=+5
-0.5Round 14🇨🇱 CHILE133NT♥4=-1
-0.5Round 24🇮🇳 INDIA293NT♣9=+1
-0.6Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND44♠♦7=-1
-0.6Round 13🇨🇦 CANADA13♦♥10-2+5
-0.6Round 15🇸🇪 SWEDEN243♥♠10-1-4
-0.7Round 8🇫🇷 FRANCE15Pass-3
-0.7Round 8🇫🇷 FRANCE203NT♣3+2+0
-0.7Round 20🇪🇸 SPAIN172♠♦10-1-4
-0.7Round 25🇹🇷 TURKIYE22♠♦8=+0
-0.8Round 1🇿🇦 SOUTH AFRICA64♥♣6=+0
-0.8Round 1🇿🇦 SOUTH AFRICA83NT♠J+1+0
-0.9Round 15🇸🇪 SWEDEN292♠♠2+1+0
-0.9Round 16🇧🇷 BRAZIL83♦♥2+1-7
-0.9Round 17🇭🇰 HONG KONG CHINA123NT♦J+1+1
-1.1Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND35♥♦Q+1-11
-1.1Round 6🇲🇦 MOROCCO222♠♥A+1+7
-1.1Round 27🇩🇰 DENMARK241NT♥A-1+2
-1.3Round 8🇫🇷 FRANCE112♥♦7=-1
-1.4Round 16🇧🇷 BRAZIL33NT♣4-1-5
-1.5Round 9🇺🇸 U.S.A.223♠♣5=+0
-1.5Round 17🇭🇰 HONG KONG CHINA154♠♦A-2-5
-1.6Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND94♥♦K-2-6
-1.6Round 16🇧🇷 BRAZIL63NT♠J+2+1
-1.6Round 24🇮🇳 INDIA242♠♥A-1+8
-1.7Round 22🇨🇭 SWITZERLAND13NT♠2+2+0
-1.7Round 25🇹🇷 TURKIYE74♠♥8=+0
-1.7Round 28🇦🇷 ARGENTINA53♥♠K+1+6
-1.8Round 9🇺🇸 U.S.A.282♠♦4-2-2
-1.9Round 9🇺🇸 U.S.A.276♥♥2=+0
-1.9Round 27🇩🇰 DENMARK213♦♣A-1-5
-2.0Round 15🇸🇪 SWEDEN273♦♣A-1+2
-2.0Round 29🇳🇴 NORWAY114♥♦A+2-14
-2.1Round 2🇮🇱 ISRAEL153♠♣Q-2+11
-2.1Round 15🇸🇪 SWEDEN304♣♦K-3+0
-2.1Round 29🇳🇴 NORWAY172NT♠Q-1-4
-2.2Round 20🇪🇸 SPAIN131NT♣5-1+0
-2.2Round 24🇮🇳 INDIA301NT♠9=-6
-2.2Round 28🇦🇷 ARGENTINA103♠♣5=-8
-2.5Round 2🇮🇱 ISRAEL134♥♦5+1-12
-2.5Round 11🇯🇵 JAPAN153♦♦2-1-5
-2.6Round 24🇮🇳 INDIA212♥♥K+1-6
-2.6Round 25🇹🇷 TURKIYE63NT♣K-2+1
-2.7Round 2🇮🇱 ISRAEL161♥♦4=-5
-2.7Round 24🇮🇳 INDIA255♣♣4=+0
-2.8Round 17🇭🇰 HONG KONG CHINA142♠♥A+1-1
-2.8Round 25🇹🇷 TURKIYE82♠♥A-2+0
-2.9Round 12🇭🇺 HUNGARY213♥♠2=+0
-2.9Round 14🇨🇱 CHILE114♥♦4-1-5
-2.9Round 27🇩🇰 DENMARK223NT♣4-1-5
-2.9Round 28🇦🇷 ARGENTINA83♠♦4=-1
-3.1Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND83NT♠4=+0
-3.2Round 11🇯🇵 JAPAN192NT♥A-2-6
-3.2Round 20🇪🇸 SPAIN153♣♦K=+1
-3.4Round 13🇨🇦 CANADA73NT♠2+1+0
-3.5Round 29🇳🇴 NORWAY154♠♥K=+0
-3.8Round 12🇭🇺 HUNGARY234♠♥J+2-13
-3.8Round 22🇨🇭 SWITZERLAND84♠♣Q=+1
-4.0Round 16🇧🇷 BRAZIL14♠♥K-2-11
-4.1Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND53NT♠9-2-7
-4.1Round 10🇩🇪 GERMANY53NT♣J-2-5
-4.1Round 19🇵🇱 POLAND93♣♥8-5-8
-4.4Round 29🇳🇴 NORWAY185♥x♠A-2-5
-4.5Round 12🇭🇺 HUNGARY254♥♦A=-3
-4.5Round 22🇨🇭 SWITZERLAND95♥x♠K-2-5
-4.7Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND14♠x♠7-1-9
-4.7Round 6🇲🇦 MOROCCO264♠♣3=+0
-5.0Round 10🇩🇪 GERMANY35♠♥6+1+11
-5.0Round 15🇸🇪 SWEDEN254♠♦9-1-10
-5.0Round 25🇹🇷 TURKIYE33NT♦10=+0
-5.3Round 8🇫🇷 FRANCE143NT♠6+2-1
-5.3Round 10🇩🇪 GERMANY16♦♠5+1+11
-5.4Round 19🇵🇱 POLAND14♠♦Q-1-5
-5.5Round 16🇧🇷 BRAZIL95♦♥Q+1+5
-5.7Round 8🇫🇷 FRANCE193NT♦4+2+0
-5.9Round 19🇵🇱 POLAND36♠♦K-1-13
-6.0Round 20🇪🇸 SPAIN204♠♣7-2-8
-6.3Round 2🇮🇱 ISRAEL203NT♦3-2-8
-6.3Round 16🇧🇷 BRAZIL104♥♠2-1-12
-6.4Round 11🇯🇵 JAPAN112♠♣K-4-7
-6.6Round 10🇩🇪 GERMANY44♦♣A=-12
-7.0Round 8🇫🇷 FRANCE175♦x♣J-1-16
-7.9Round 20🇪🇸 SPAIN184♠♥8-1-5
-7.9Round 22🇨🇭 SWITZERLAND63NT♥Q-2-6
-8.3Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND25♣x♥J=-4
-8.7Round 19🇵🇱 POLAND66♦♠7-1-13
-8.7Round 27🇩🇰 DENMARK306♠♦Q-1-11
-9.1Round 19🇵🇱 POLAND104♠♣A-1-12
-9.4Round 6🇲🇦 MOROCCO246♥♣6=+0
-9.6Round 10🇩🇪 GERMANY75♦♣4=-3
-9.9Round 11🇯🇵 JAPAN165♦x♠A-5-10
-10.6Round 28🇦🇷 ARGENTINA36♦♥K=-7
-15.0Round 12🇭🇺 HUNGARY267♦♠4-2-20