🇨🇳 CHEN Yunlong · CHINA

54rank
+29.9Butler · 224 bds
+0.13per board
±4.3swing
+0.12vs par /bd · #58/123
+0.15adjusted /bd
Butler per round: -27.7 -18.7 -23.2 8 0.6 0.1 13.1 -15.1 -5.7 42.9 53.5 6.5 14.1 -18.5by round

vs par split: bidding -0.16 · play +0.28

Strength of schedule: opponents averaged +0.01/bd (an average draw) → opponent-adjusted +0.15/bd

Card play — on target: opening leads 72.2% #121 of 123 · declarer play 76.4% #69 of 123 · defence 94.2% #5 of 123

Card play by contract type — on target
vs NTvs a suit
Opening leads57.1% (7)75.9% (29)
Declarer play58.3% (12)81.4% (43)
Defence82.8% (29)98.7% (75)

Opening leads by suit led: ♠ 80.0% (10) · ♥ 72.7% (11) · ♦ 70.0% (10) · ♣ 60.0% (5)

vs par by strain: NT -0.21 (53) · a suit +0.25 (170)

vs par by level: part-score -0.22 (100) · game -0.02 (108) · slam +3.73 (15)

By role: declaring -0.30/bd (-1.98 vs par · 120) · defending +0.63/bd (+2.56 vs par · 104)

By vulnerability: vulnerable +0.11/bd (-0.23 vs par · 112) · not vulnerable +0.15/bd (+0.48 vs par · 112)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1J.ZhaoJ.Linde – C.SchwerdtClosed16-27.7-1.73-0.62
Round 3J.ZhaoG.Helgemo – T.HelnessClosed16-18.7-1.17-0.56
Round 5J.ZhaoC.Lorenzini – J.QuantinOpen16-23.2-1.45-1.94
Round 6J.ZhaoM.Cornell – A.BachClosed16+8.0+0.50+2.25
Round 7J.ZhaoR.Dias – L.De CarvalhoClosed16+0.6+0.04+0.38
Round 8J.ZhaoD.Yang – S.YangClosed16+0.1+0.01-0.19
Round 10J.ZhaoM.Thomson – D.BeauchampOpen16+13.1+0.82+0.81
Round 12J.ZhaoF.Karwur – D.SaculOpen16-15.1-0.94-1.50
Round 13J.ZhaoM.Heshmat – B.PascalClosed16-5.7-0.36-2.44
Round 14J.ZhaoK.Venkataraman – A.GoelOpen16+42.9+2.68+1.44
Round 16J.ZhaoG.Herrera – G.MarshallClosed16+53.5+3.34+5.25
Round 17J.ZhaoR.Stephens – B.DondeClosed16+6.5+0.41-1.12
Round 19J.ZhaoB.Nab – B.DrijverClosed16+14.1+0.88+2.31
Round 21J.ZhaoR.Levin – S.WeinsteinClosed16-18.5-1.16-2.31

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
+14.8Round 14🇮🇳 INDIA315♦x♥A-4+15
+13.3Round 16🇲🇽 MEXICO215♣♠2+2+17
+12.2Round 19🇳🇱 NETHERLANDS125♥x♠5+1+14
+11.3Round 14🇮🇳 INDIA213NT♥4-2+13
+10.1Round 7🇧🇷 BRAZIL163NT♠7+2+13
+10.1Round 16🇲🇽 MEXICO195♣x♠A-3+9
+9.7Round 13🇪🇬 EGYPT145♥x♠K-2+9
+9.4Round 12🇮🇩 INDONESIA236♠♣2=+0
+9.2Round 10🇦🇺 AUSTRALIA264♠♣2+1+11
+9.0Round 10🇦🇺 AUSTRALIA186♥♠2-1+17
+8.4Round 6🇳🇿 NEW ZEALAND204♥x♦K-2+9
+8.4Round 14🇮🇳 INDIA185♥x♠Q-3+12
+8.1Round 17🇿🇦 SOUTH AFRICA107♠♠3-1+17
+8.0Round 16🇲🇽 MEXICO184♠♣K-2+13
+6.1Round 7🇧🇷 BRAZIL43♥♥Q=+7
+6.1Round 19🇳🇱 NETHERLANDS24♠x♥A=+10
+5.9Round 8🇹🇼 CHINESE TAIPEI272♥x♦K-3+2
+5.8Round 16🇲🇽 MEXICO244♦♣K+2+13
+5.6Round 6🇳🇿 NEW ZEALAND275♦♠K=+0
+5.5Round 14🇮🇳 INDIA254♥♥4+2+5
+5.4Round 5🇫🇷 FRANCE123♠♥Q+2+6
+5.3Round 19🇳🇱 NETHERLANDS102NT♣3-2+7
+5.2Round 13🇪🇬 EGYPT116♣x♥A-3+5
+5.1Round 1🇩🇪 GERMANY113♥♦Q=+6
+5.0Round 12🇮🇩 INDONESIA183NT♣2=+10
+5.0Round 16🇲🇽 MEXICO224♣♠J-1+5
+4.8Round 10🇦🇺 AUSTRALIA305♦♠2=+0
+4.8Round 16🇲🇽 MEXICO291NT♣5-1+5
+4.7Round 16🇲🇽 MEXICO173♥♠A+1+2
+4.6Round 17🇿🇦 SOUTH AFRICA123♣♥3+1-10
+4.4Round 16🇲🇽 MEXICO233♣♣3+1+10
+4.3Round 7🇧🇷 BRAZIL83♥♠3-1+5
+4.3Round 10🇦🇺 AUSTRALIA194♥♠2-1+5
+4.3Round 17🇿🇦 SOUTH AFRICA64♥♦K+1+0
+4.3Round 19🇳🇱 NETHERLANDS34♥♦9=+0
+4.1Round 8🇹🇼 CHINESE TAIPEI222♣♣2=+6
+4.0Round 6🇳🇿 NEW ZEALAND243NT♠K=+0
+4.0Round 16🇲🇽 MEXICO302NT♣2+1+6
+3.9Round 8🇹🇼 CHINESE TAIPEI193♣♠8-3+6
+3.8Round 17🇿🇦 SOUTH AFRICA54♣♣5=+7
+3.3Round 13🇪🇬 EGYPT133♣♦7+2+1
+3.1Round 21🇺🇸 USA1104♠♥J-2+8
+3.0Round 14🇮🇳 INDIA172♠♦10+1-7
+2.9Round 8🇹🇼 CHINESE TAIPEI201NT♠4=+5
+2.9Round 19🇳🇱 NETHERLANDS94♥♦J+2+2
+2.7Round 10🇦🇺 AUSTRALIA292♠♦2-1+1
+2.7Round 21🇺🇸 USA183♠♣3=+1
+2.6Round 13🇪🇬 EGYPT92♥♦Q+1+0
+2.5Round 3🇲🇨 MONACO32♦♣7+1+0
+2.4Round 3🇲🇨 MONACO94♥♠2+1+1
+2.4Round 8🇹🇼 CHINESE TAIPEI324♥♠3-2+11
+2.4Round 14🇮🇳 INDIA321NT♣2+1+5
+2.4Round 21🇺🇸 USA1166♠♦10+1-13
+2.3Round 8🇹🇼 CHINESE TAIPEI212♦♦3+3-7
+2.3Round 10🇦🇺 AUSTRALIA274♠♦2-1+4
+2.3Round 21🇺🇸 USA1144♠x♣Q-2+0
+2.1Round 3🇲🇨 MONACO54♠♦5+1+0
+2.1Round 10🇦🇺 AUSTRALIA172♠♥2+1+0
+2.1Round 10🇦🇺 AUSTRALIA283♦♦2=+5
+2.1Round 19🇳🇱 NETHERLANDS56♠♣Q+1+11
+2.0Round 3🇲🇨 MONACO153NT♠4-1+5
+2.0Round 7🇧🇷 BRAZIL74♠♣A-2+8
+2.0Round 12🇮🇩 INDONESIA262♦♣6-2+3
+2.0Round 12🇮🇩 INDONESIA314♥♠A=+3
+2.0Round 17🇿🇦 SOUTH AFRICA134♥♥5+1+1
+1.9Round 7🇧🇷 BRAZIL14♥♣7=-1
+1.8Round 3🇲🇨 MONACO82♠♥A-3-6
+1.8Round 6🇳🇿 NEW ZEALAND254♥♦5-1+4
+1.8Round 13🇪🇬 EGYPT13NT♥3+2+0
+1.8Round 14🇮🇳 INDIA203♦♦J+2+0
+1.7Round 7🇧🇷 BRAZIL104♠♣Q=+0
+1.7Round 10🇦🇺 AUSTRALIA246♣♥2=-2
+1.7Round 13🇪🇬 EGYPT102♦♣J-2-7
+1.6Round 8🇹🇼 CHINESE TAIPEI283♦♥10+1+0
+1.4Round 1🇩🇪 GERMANY94♥♦8-1+5
+1.3Round 17🇿🇦 SOUTH AFRICA91NT♣3+1+1
+1.2Round 10🇦🇺 AUSTRALIA227♠♣2=+0
+1.2Round 13🇪🇬 EGYPT62♥♠9-1-4
+1.2Round 17🇿🇦 SOUTH AFRICA153♦♣3+1-10
+1.1Round 5🇫🇷 FRANCE61NT♠6-4-2
+1.1Round 7🇧🇷 BRAZIL53♣♦4+1+7
+1.1Round 14🇮🇳 INDIA293♥♦K=+0
+1.1Round 16🇲🇽 MEXICO283♦♦2-1+11
+1.1Round 21🇺🇸 USA1114♠♣A=+0
+1.0Round 1🇩🇪 GERMANY42♠♦J-1-1
+1.0Round 1🇩🇪 GERMANY131♠♦J+2-10
+1.0Round 5🇫🇷 FRANCE161NT♥9+1+0
+1.0Round 8🇹🇼 CHINESE TAIPEI292♠♥A-1+0
+1.0Round 14🇮🇳 INDIA233NT♠7+3-12
+0.9Round 1🇩🇪 GERMANY52NT♣3-1+0
+0.9Round 17🇿🇦 SOUTH AFRICA33♦♣10-1+2
+0.8Round 1🇩🇪 GERMANY144♠♦5=+1
+0.8Round 5🇫🇷 FRANCE94♠♥4+1-11
+0.8Round 14🇮🇳 INDIA282♥♥A-2+3
+0.7Round 10🇦🇺 AUSTRALIA312NT♠2=+0
+0.7Round 16🇲🇽 MEXICO274♥♣10+1+0
+0.7Round 19🇳🇱 NETHERLANDS42♠♥2+2+1
+0.6Round 6🇳🇿 NEW ZEALAND174♦♦3-1+2
+0.6Round 6🇳🇿 NEW ZEALAND282♠♠9+1+0
+0.6Round 10🇦🇺 AUSTRALIA233NT♥2-1+6
+0.6Round 16🇲🇽 MEXICO263NT♣3+1+0
+0.5Round 5🇫🇷 FRANCE144♠♦10=+0
+0.4Round 3🇲🇨 MONACO162♠♥Q=+0
+0.4Round 6🇳🇿 NEW ZEALAND313NT♠10+2+0
+0.4Round 12🇮🇩 INDONESIA173♦♣6+1+0
+0.4Round 13🇪🇬 EGYPT23♦♥2=+1
+0.3Round 12🇮🇩 INDONESIA204♥♦3=-1
+0.3Round 14🇮🇳 INDIA222♥♠4=-9
+0.2Round 1🇩🇪 GERMANY71NT♠4-1+0
+0.2Round 5🇫🇷 FRANCE133♠♣A-1+9
+0.1Round 3🇲🇨 MONACO23NT♣6+1+0
+0.1Round 3🇲🇨 MONACO74♥♣4=+1
+0.1Round 8🇹🇼 CHINESE TAIPEI254♠♥A=+0
-0.0Round 3🇲🇨 MONACO123♦♥3-1+0
+0.0Round 6🇳🇿 NEW ZEALAND237♥x♠4-4+0
-0.1Round 5🇫🇷 FRANCE11NT♥7-1+2
-0.1Round 5🇫🇷 FRANCE42♦♥4=-1
-0.1Round 8🇹🇼 CHINESE TAIPEI232♥♣2-1-1
-0.1Round 19🇳🇱 NETHERLANDS114♥♣Q=+0
-0.2Round 1🇩🇪 GERMANY104♥♠5+1+0
-0.2Round 6🇳🇿 NEW ZEALAND223NT♠J=+0
-0.2Round 16🇲🇽 MEXICO313NT♥2+1+0
-0.2Round 17🇿🇦 SOUTH AFRICA81NT♠7=-1
-0.3Round 14🇮🇳 INDIA243♥♣K=+0
-0.3Round 21🇺🇸 USA163♥♠3=+0
-0.4Round 14🇮🇳 INDIA193NT♣7+2+0
-0.5Round 5🇫🇷 FRANCE114♠♣2=+0
-0.5Round 6🇳🇿 NEW ZEALAND293♠♣A-1+1
-0.5Round 16🇲🇽 MEXICO324♠♦2+1+0
-0.6Round 8🇹🇼 CHINESE TAIPEI263NT♦3-1-5
-0.6Round 12🇮🇩 INDONESIA294♥♠K=+0
-0.7Round 6🇳🇿 NEW ZEALAND263NT♦Q+1-1
-0.7Round 13🇪🇬 EGYPT32♠♥7+1+0
-0.7Round 14🇮🇳 INDIA273NT♠6-1+5
-0.7Round 21🇺🇸 USA1133NT♦2=-1
-0.8Round 21🇺🇸 USA144♥♠A+1+0
-0.9Round 1🇩🇪 GERMANY32♥♣Q=+0
-0.9Round 3🇲🇨 MONACO113NT♥A-3-2
-0.9Round 7🇧🇷 BRAZIL154♥♦A-1-2
-0.9Round 21🇺🇸 USA133NT♦4=+1
-1.0Round 7🇧🇷 BRAZIL114♥♣4+1-11
-1.0Round 19🇳🇱 NETHERLANDS16Pass-4
-1.1Round 5🇫🇷 FRANCE151NT♦3=+0
-1.1Round 17🇿🇦 SOUTH AFRICA74♠♥Q+2-1
-1.1Round 19🇳🇱 NETHERLANDS82♠♣J+1-1
-1.2Round 1🇩🇪 GERMANY153NT♦2=+2
-1.2Round 13🇪🇬 EGYPT87♠♠3=+0
-1.2Round 19🇳🇱 NETHERLANDS153♥♠K-1+0
-1.3Round 6🇳🇿 NEW ZEALAND194♥♥J+2+11
-1.3Round 7🇧🇷 BRAZIL122♥♠6=+0
-1.3Round 19🇳🇱 NETHERLANDS63♣♥A=+0
-1.4Round 3🇲🇨 MONACO136NT♦7+1-1
-1.4Round 6🇳🇿 NEW ZEALAND184♠♣K+2+13
-1.4Round 17🇿🇦 SOUTH AFRICA14♠♦2-1-4
-1.5Round 1🇩🇪 GERMANY14♠♥2=+0
-1.5Round 8🇹🇼 CHINESE TAIPEI181NT♣3-3-2
-1.6Round 6🇳🇿 NEW ZEALAND323♦♣4-1-2
-1.6Round 19🇳🇱 NETHERLANDS143NT♥7+3-2
-1.7Round 19🇳🇱 NETHERLANDS133♠♠7=+0
-1.8Round 8🇹🇼 CHINESE TAIPEI174♠♥2+2-11
-1.8Round 21🇺🇸 USA172♦♠J+2+0
-1.9Round 7🇧🇷 BRAZIL143NT♦7-2+0
-1.9Round 13🇪🇬 EGYPT42♥♦K-1-6
-1.9Round 21🇺🇸 USA1153NT♠10=-3
-2.0Round 14🇮🇳 INDIA304♥x♦K-2+3
-2.0Round 17🇿🇦 SOUTH AFRICA42♠♦K=-5
-2.1Round 21🇺🇸 USA1123NT♣5=+2
-2.3Round 3🇲🇨 MONACO143♥♦K=-7
-2.3Round 17🇿🇦 SOUTH AFRICA164♠x♥Q-2+5
-2.4Round 6🇳🇿 NEW ZEALAND214♠x♣A-1+0
-2.7Round 7🇧🇷 BRAZIL62♦♦3+1+0
-2.7Round 12🇮🇩 INDONESIA322♠♣K+3-2
-2.8Round 3🇲🇨 MONACO12♥♦A-1+2
-2.8Round 12🇮🇩 INDONESIA212♠♥3-1+0
-2.8Round 17🇿🇦 SOUTH AFRICA113♦♠5-1-10
-3.0Round 1🇩🇪 GERMANY83♥♦Q-2+0
-3.0Round 16🇲🇽 MEXICO202♣♠2+1+0
-3.1Round 12🇮🇩 INDONESIA271NT♦2+1+1
-3.2Round 12🇮🇩 INDONESIA223NT♦2-1-10
-3.2Round 21🇺🇸 USA123♠♣2-1-5
-3.3Round 5🇫🇷 FRANCE102♦♥8-1-5
-3.3Round 13🇪🇬 EGYPT163NT♠5+1+0
-3.4Round 12🇮🇩 INDONESIA304♠x♠J=-5
-3.5Round 5🇫🇷 FRANCE73♥♣4-1-5
-3.5Round 12🇮🇩 INDONESIA242♣♥4-1-4
-3.6Round 5🇫🇷 FRANCE23NT♦7+1-1
-3.7Round 7🇧🇷 BRAZIL135♣x♥6-1-8
-3.8Round 13🇪🇬 EGYPT73NT♦9-2-13
-3.8Round 21🇺🇸 USA113♥♠3=-6
-4.0Round 10🇦🇺 AUSTRALIA214♠♦2-1+2
-4.0Round 12🇮🇩 INDONESIA193♥♣3+2-6
-4.0Round 19🇳🇱 NETHERLANDS74♥♦7-1-12
-4.1Round 3🇲🇨 MONACO103♣♦4+2+8
-4.1Round 14🇮🇳 INDIA263NT♣5=-10
-4.3Round 7🇧🇷 BRAZIL22NT♥J-1-6
-4.4Round 13🇪🇬 EGYPT55♥♣Q-1-5
-4.5Round 7🇧🇷 BRAZIL94♥♦K+1+0
-4.5Round 12🇮🇩 INDONESIA255♣x♠5-2-5
-4.6Round 1🇩🇪 GERMANY64♥♠6-1-6
-4.7Round 21🇺🇸 USA193♥♦2+1-10
-4.9Round 17🇿🇦 SOUTH AFRICA23♥♦4-1-6
-5.0Round 8🇹🇼 CHINESE TAIPEI246♦♥A=+0
-5.0Round 8🇹🇼 CHINESE TAIPEI314♠♥7-3-7
-5.0Round 17🇿🇦 SOUTH AFRICA145♠♦J-1-4
-5.1Round 13🇪🇬 EGYPT154♠x♠5-2-5
-5.2Round 10🇦🇺 AUSTRALIA254♠x♦2=-5
-5.3Round 6🇳🇿 NEW ZEALAND302NT♣K=-1
-5.3Round 16🇲🇽 MEXICO254♠♠6=-7
-5.4Round 5🇫🇷 FRANCE32♠♦K+2-6
-5.7Round 5🇫🇷 FRANCE85♦♠4-3-4
-6.3Round 7🇧🇷 BRAZIL31NTx♠K+1-6
-6.4Round 12🇮🇩 INDONESIA284♥♣5-2-8
-6.5Round 1🇩🇪 GERMANY25♠x♣5-1-6
-7.0Round 1🇩🇪 GERMANY126♥♠5=+11
-7.5Round 19🇳🇱 NETHERLANDS16♥♠3+1+11
-8.9Round 3🇲🇨 MONACO63NT♣9+1+0
-8.9Round 5🇫🇷 FRANCE55♦♥8-2-13
-9.2Round 10🇦🇺 AUSTRALIA204♥♦2-2-13
-9.2Round 10🇦🇺 AUSTRALIA325♥x♠2-2-18
-9.7Round 3🇲🇨 MONACO42NT♦3+2-10
-9.9Round 21🇺🇸 USA153NT♥2-1-11
-10.1Round 8🇹🇼 CHINESE TAIPEI306♣♦A=+0
-11.2Round 13🇪🇬 EGYPT124♥x♠3-4-15
-13.2Round 1🇩🇪 GERMANY164♥x♦9-4-12