🇨🇳 CHEN Yichao · CHINA

21rank
+109.9Butler · 238 bds
+0.46per board
±4.6swing
+0.71vs par /bd · #15/140
+0.40adjusted /bd
Butler per round: 14.4 6.6 4.8 19.4 1.5 37 -26 12.1 6.9 23.9 44.4 -28.6 -0.8 -4.9 37.9 -18.1 -20.6by round

vs par split: bidding +0.21 · play +0.50

Strength of schedule: opponents averaged -0.06/bd (an easy draw) → opponent-adjusted +0.40/bd

Card play — on target: opening leads 83.6% #47 of 140 · declarer play 79.2% #29 of 140 · defence 89.7% #22 of 140

Bidding activity — not a pass: 44.9% #42 of 140 (306/681)

Card play by contract type — on target
vs NTvs a suit
Opening leads83.3% (12)83.7% (43)
Declarer play75.0% (16)80.4% (56)
Defence78.1% (32)94.0% (84)

Opening leads by suit led: ♠ 70.0% (10) · ♥ 92.3% (13) · ♦ 92.3% (13) · ♣ 78.9% (19)

vs par by strain: NT +0.23 (57) · a suit +0.86 (181)

vs par by level: part-score +0.72 (86) · game +0.52 (137) · slam +2.40 (15)

By role: declaring +0.43/bd (-1.02 vs par · 122) · defending +0.49/bd (+2.53 vs par · 116)

By vulnerability: vulnerable +0.45/bd (-0.03 vs par · 119) · not vulnerable +0.48/bd (+1.45 vs par · 119)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1B.FuI.Bareket – N.SaadaOpen14+14.4+1.03+0.21
Round 3B.FuD.Chen – A.YanagisawaOpen14+6.6+0.47+1.21
Round 4B.FuP.Correa – D.BrennerOpen14+4.8+0.34-0.43
Round 5B.FuJ.Glynn – R.GoslingClosed14+19.4+1.39+3.86
Round 6B.FuN.Qasim Norani – H.SumarOpen14+1.5+0.11+0.50
Round 8B.FuM.Bell – S.BellOpen14+37.0+2.64+3.43
Round 9B.FuF.Porta – F.DalpozzoClosed14-26.0-1.86-3.79
Round 10B.FuM.Boyer – P.SchilliOpen14+12.1+0.86+1.07
Round 12B.FuS.Bansal – R.RoyClosed14+6.9+0.49+1.57
Round 13B.FuE.Ovelius – D.Covill GullbergClosed14+23.9+1.71+2.86
Round 14B.FuI.Kaprey – L.WeersOpen14+44.4+3.17+2.71
Round 15B.FuV.Demuy – J.WolpertClosed14-28.6-2.04-3.14
Round 17B.FuJ.Zmuda – P.MarcinowskiOpen14-0.8-0.06-1.79
Round 18B.FuC.Dwyer Rimstedt – K.Dwyer RimstedtOpen14-4.9-0.35-0.14
Round 20B.FuJ.Blond – S.BlankClosed14+37.9+2.71+3.50
Round 21B.FuD.Moraru – M.BalintClosed14-18.1-1.29+1.07
Round 22B.FuB.Cronier – P.CronierClosed14-20.6-1.47-0.64

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
+14.5Round 18🇺🇸 USA2276♥x♦A=+15
+14.2Round 14🇿🇦 SOUTH AFRICA253♦x♣A-4+14
+12.6Round 20🇨🇦 CANADA266♠x♦6-1+13
+12.3Round 12🇮🇳 INDIA153♥x♥T=+12
+12.0Round 1🇮🇱 ISRAEL36♦♠A=+7
+11.8Round 5🇧🇲 BERMUDA64♠♣6-1+12
+11.6Round 20🇨🇦 CANADA254♥♠5-3+15
+11.3Round 20🇨🇦 CANADA175♣♥J-1+14
+11.0Round 8🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND194♠♣3-1+13
+10.3Round 5🇧🇲 BERMUDA73NT♦7=+10
+10.2Round 6🇦🇪 UNITED ARAB EMIRATES283NT♠8-2+13
+9.8Round 1🇮🇱 ISRAEL83NT♣3-1+10
+9.2Round 14🇿🇦 SOUTH AFRICA193♠♠3-2+11
+8.9Round 14🇿🇦 SOUTH AFRICA175♣♠A=+11
+8.4Round 3🇯🇵 JAPAN133♣♠5-2+8
+8.0Round 13🇸🇪 SWEDEN133NT♥2+2-10
+8.0Round 17🇵🇱 POLAND96♦♠5=-2
+7.9Round 10🇷🇪 REUNION155♠♣K-2+12
+7.6Round 20🇨🇦 CANADA183NT♥Q=+5
+7.5Round 13🇸🇪 SWEDEN104♥♣J=+3
+7.0Round 8🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND163NT♦6-3+14
+6.9Round 4🇧🇷 BRAZIL155♥x♠4=+13
+6.9Round 12🇮🇳 INDIA162♠♥K+2+10
+6.3Round 3🇯🇵 JAPAN94♥x♠T-2+5
+6.3Round 8🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND155♠♣K=+8
+6.3Round 10🇷🇪 REUNION243NT♥T=+7
+6.0Round 21🇷🇴 ROMANIA104♠♥A-2+13
+5.7Round 3🇯🇵 JAPAN33NT♠7-1+10
+5.7Round 22🇫🇷 FRANCE234♠♥6=+10
+5.3Round 22🇫🇷 FRANCE264♥♦K=+3
+5.2Round 4🇧🇷 BRAZIL205♣♠A-2+7
+5.2Round 9🇮🇹 ITALY144♠♠5=-1
+5.2Round 13🇸🇪 SWEDEN13♥♠J-4+7
+4.8Round 13🇸🇪 SWEDEN95♦♠K-1+12
+4.7Round 14🇿🇦 SOUTH AFRICA264♠♥A=+0
+4.7Round 18🇺🇸 USA2262♠♥5+2+10
+4.5Round 10🇷🇪 REUNION254♠x♦A-2+2
+4.3Round 4🇧🇷 BRAZIL223♦♠8+2+2
+4.3Round 10🇷🇪 REUNION222♠♠7+3+10
+4.3Round 13🇸🇪 SWEDEN144NT♣2+2+14
+4.3Round 14🇿🇦 SOUTH AFRICA242♠♣K=+6
+4.2Round 12🇮🇳 INDIA246♥♣K+1+11
+4.0Round 6🇦🇪 UNITED ARAB EMIRATES243♣♥A+2+6
+4.0Round 17🇵🇱 POLAND54♠♦T-2+6
+3.9Round 9🇮🇹 ITALY32♣x♣6-3-3
+3.7Round 1🇮🇱 ISRAEL132♣♥6+2+0
+3.6Round 4🇧🇷 BRAZIL255♣x♠A-3+0
+3.5Round 9🇮🇹 ITALY73NT♠4=-1
+3.4Round 5🇧🇲 BERMUDA94♥♦K=+0
+3.4Round 10🇷🇪 REUNION203NT♦J+2+1
+3.4Round 18🇺🇸 USA2177NT♠J=+0
+3.3Round 14🇿🇦 SOUTH AFRICA183NT♠9+1+0
+3.2Round 8🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND215♠♦2+1+1
+3.2Round 22🇫🇷 FRANCE272♦♦5+2+8
+3.0Round 8🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND243♦♠K=+5
+3.0Round 15🇺🇸 USA132♥♥6=+6
+2.9Round 3🇯🇵 JAPAN14♠♦T=+0
+2.8Round 3🇯🇵 JAPAN63NT♠5+1-12
+2.8Round 14🇿🇦 SOUTH AFRICA214♠♣9=+0
+2.8Round 15🇺🇸 USA193♥♦9-1+6
+2.6Round 21🇷🇴 ROMANIA63♥♠A-1+10
+2.4Round 3🇯🇵 JAPAN44♥♠T+3+2
+2.4Round 8🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND272♥♦4=+8
+2.2Round 1🇮🇱 ISRAEL44♣♦6-1-1
+2.2Round 5🇧🇲 BERMUDA25♦♣3+1+11
+2.2Round 6🇦🇪 UNITED ARAB EMIRATES192♥♦2-1+1
+2.2Round 8🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND262♥♣K+1+0
+2.2Round 9🇮🇹 ITALY124♠♣Q=+0
+2.2Round 12🇮🇳 INDIA233♠♣K-1+1
+2.0Round 5🇧🇲 BERMUDA43♣♥A-1+0
+2.0Round 20🇨🇦 CANADA244♥♠5=+0
+1.9Round 15🇺🇸 USA154♥♦Q=+0
+1.8Round 6🇦🇪 UNITED ARAB EMIRATES165♥♣A=+11
+1.7Round 5🇧🇲 BERMUDA146NT♥T+1+11
+1.7Round 10🇷🇪 REUNION282♠♠2+1+0
+1.7Round 15🇺🇸 USA181NT♦6-2-1
+1.7Round 20🇨🇦 CANADA213NT♠9+1+13
+1.6Round 3🇯🇵 JAPAN142♥♦T-2+8
+1.6Round 17🇵🇱 POLAND24♠♥7+1+0
+1.1Round 20🇨🇦 CANADA271♠♦9+2+7
+1.0Round 4🇧🇷 BRAZIL184♥♣A+2-11
+1.0Round 6🇦🇪 UNITED ARAB EMIRATES215♦♣K=+0
+1.0Round 8🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND183♥♦9-1+1
+1.0Round 13🇸🇪 SWEDEN124♥♦3=+3
+1.0Round 17🇵🇱 POLAND33NT♣Q=+0
+0.9Round 18🇺🇸 USA2255♦♠7-1+2
+0.9Round 21🇷🇴 ROMANIA134♠♥Q+1+0
+0.8Round 10🇷🇪 REUNION263NT♥9=+1
+0.7Round 1🇮🇱 ISRAEL124♠♦J=+0
+0.7Round 6🇦🇪 UNITED ARAB EMIRATES153♠♥A+1-6
+0.7Round 8🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND223NT♣A+1+0
+0.7Round 9🇮🇹 ITALY133NT♦2+1-1
+0.7Round 12🇮🇳 INDIA253NT♣5+2+0
+0.7Round 14🇿🇦 SOUTH AFRICA233NT♣3+1+1
+0.7Round 20🇨🇦 CANADA153♥♠A=+1
+0.6Round 5🇧🇲 BERMUDA131NT♥J=+1
+0.6Round 20🇨🇦 CANADA193♣♥Q-2-1
+0.6Round 21🇷🇴 ROMANIA21NT♦T+3-10
+0.6Round 21🇷🇴 ROMANIA53♦♥8=+0
+0.6Round 22🇫🇷 FRANCE241NT♦7+1+6
+0.5Round 1🇮🇱 ISRAEL94♥♦K+2+11
+0.5Round 8🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND202♠♥5=-5
+0.5Round 13🇸🇪 SWEDEN23NT♦6=+1
+0.3Round 4🇧🇷 BRAZIL274♣♥8-2-5
+0.3Round 5🇧🇲 BERMUDA15♥x♣K-1+0
+0.3Round 5🇧🇲 BERMUDA113♥♦K=+6
+0.3Round 8🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND173NT♠A-3+2
+0.3Round 10🇷🇪 REUNION164♠♥J+2-11
+0.3Round 10🇷🇪 REUNION173♦♥3=-1
+0.3Round 12🇮🇳 INDIA224♠♦7=-1
+0.3Round 15🇺🇸 USA173♥♦2+1-10
+0.3Round 17🇵🇱 POLAND132♠♦A-1+0
+0.3Round 22🇫🇷 FRANCE154♥♦3+1+0
+0.2Round 4🇧🇷 BRAZIL163NT♠3=+0
+0.2Round 4🇧🇷 BRAZIL234♠♦4+1+13
+0.2Round 6🇦🇪 UNITED ARAB EMIRATES183♦♣K=+0
+0.2Round 14🇿🇦 SOUTH AFRICA153NT♠7+1+0
+0.1Round 1🇮🇱 ISRAEL23NT♥Q=+0
+0.1Round 3🇯🇵 JAPAN103NT♥7+3+13
+0.1Round 6🇦🇪 UNITED ARAB EMIRATES233♦♥Q=-9
+0.1Round 8🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND253♣♥K=+1
+0.0Round 1🇮🇱 ISRAEL54♠♠2+1+0
+0.0Round 12🇮🇳 INDIA174♠♥2+1+0
-0.0Round 13🇸🇪 SWEDEN84♥♠Q+1-1
+0.0Round 14🇿🇦 SOUTH AFRICA161NT♥A+1+0
-0.0Round 15🇺🇸 USA1104♠♥9+1+0
+0.0Round 18🇺🇸 USA2214♥♦5=+3
-0.0Round 18🇺🇸 USA2284♥♣2+1+0
-0.1Round 8🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND234♠♣7+1+0
-0.1Round 13🇸🇪 SWEDEN63♥♠Q=+0
-0.1Round 14🇿🇦 SOUTH AFRICA222♠♥T=+1
-0.1Round 22🇫🇷 FRANCE254♥♣Q=+1
-0.2Round 12🇮🇳 INDIA204♠♥A+1-13
-0.2Round 20🇨🇦 CANADA203♥♠6+2-10
-0.3Round 13🇸🇪 SWEDEN73NT♦3+2+0
-0.3Round 22🇫🇷 FRANCE173♥♦A=-7
-0.4Round 1🇮🇱 ISRAEL104♥♠T=+0
-0.4Round 9🇮🇹 ITALY54♥♠K+2-11
-0.4Round 20🇨🇦 CANADA233NT♠3+2+0
-0.4Round 21🇷🇴 ROMANIA114♠♣K+1+0
-0.5Round 4🇧🇷 BRAZIL173NT♠5+1+1
-0.5Round 4🇧🇷 BRAZIL212♥♦A=-1
-0.5Round 10🇷🇪 REUNION232♥♥2-3+7
-0.5Round 15🇺🇸 USA114♥♠4=+1
-0.5Round 20🇨🇦 CANADA224♥♦9+1+0
-0.5Round 21🇷🇴 ROMANIA143♦♣2-3+7
-0.6Round 8🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND282♠♣T=+0
-0.6Round 9🇮🇹 ITALY14♠x♦T-2+4
-0.6Round 14🇿🇦 SOUTH AFRICA203NT♠6=-3
-0.6Round 15🇺🇸 USA1144♠♥6+1+0
-0.6Round 18🇺🇸 USA2243♦♠Q=+5
-0.7Round 1🇮🇱 ISRAEL115♦♥3=-1
-0.7Round 3🇯🇵 JAPAN112♥♦5+1+6
-0.7Round 6🇦🇪 UNITED ARAB EMIRATES253NT♣8+2-1
-0.7Round 15🇺🇸 USA1126♠♦Q=+0
-0.7Round 18🇺🇸 USA2223NT♠5+2-1
-0.8Round 13🇸🇪 SWEDEN44♥♥8+1+0
-0.8Round 17🇵🇱 POLAND14♥♣2=+0
-0.8Round 17🇵🇱 POLAND103♦♣6=+0
-0.8Round 18🇺🇸 USA2154♥♦3=+1
-0.9Round 6🇦🇪 UNITED ARAB EMIRATES221NT♥3-1-5
-0.9Round 12🇮🇳 INDIA274♥♠4+1+11
-1.0Round 17🇵🇱 POLAND61NT♦3+1-7
-1.0Round 17🇵🇱 POLAND71NT♣8+1+0
-1.1Round 5🇧🇲 BERMUDA104♠♣6=+0
-1.1Round 20🇨🇦 CANADA161NT♠6=+1
-1.1Round 22🇫🇷 FRANCE193♠♣A-1-2
-1.2Round 5🇧🇲 BERMUDA34♠♦8=+0
-1.2Round 12🇮🇳 INDIA285♦♦2-2+6
-1.2Round 14🇿🇦 SOUTH AFRICA273♦♦6-1-3
-1.2Round 17🇵🇱 POLAND143NT♥6-1-5
-1.3Round 3🇯🇵 JAPAN123♦♥A-1-8
-1.4Round 1🇮🇱 ISRAEL143NT♣2+2-1
-1.5Round 13🇸🇪 SWEDEN56♠♠6=+0
-1.6Round 10🇷🇪 REUNION213NT♦8+3-2
-1.7Round 5🇧🇲 BERMUDA53NT♦9+4-2
-1.7Round 13🇸🇪 SWEDEN34♥♦T+1+0
-1.7Round 18🇺🇸 USA2162♥♦K-1+1
-1.7Round 21🇷🇴 ROMANIA13♠♦K-2+0
-1.7Round 22🇫🇷 FRANCE224♠♥K-1+8
-1.8Round 18🇺🇸 USA2203♠♦A+1-8
-1.9Round 3🇯🇵 JAPAN53NT♣6+2+0
-1.9Round 9🇮🇹 ITALY83♥♣5=-1
-2.0Round 14🇿🇦 SOUTH AFRICA283♠♦4=+0
-2.1Round 17🇵🇱 POLAND114♥♠K-1-5
-2.2Round 4🇧🇷 BRAZIL243♠♦J+1-1
-2.2Round 21🇷🇴 ROMANIA121♠♣K-1-6
-2.3Round 6🇦🇪 UNITED ARAB EMIRATES272♠♣6-2+0
-2.3Round 10🇷🇪 REUNION273♥♣A-2+0
-2.4Round 6🇦🇪 UNITED ARAB EMIRATES173♦♥Q-3+2
-2.6Round 4🇧🇷 BRAZIL193♦♠2=-6
-2.6Round 17🇵🇱 POLAND43♠♥Q-2-3
-2.7Round 9🇮🇹 ITALY104♠♣K-2+0
-2.8Round 22🇫🇷 FRANCE204♠♣K-1-6
-3.0Round 12🇮🇳 INDIA262♠♣Q+1-1
-3.0Round 13🇸🇪 SWEDEN115♦♣A+1+11
-3.0Round 17🇵🇱 POLAND83♠♦A=-2
-3.1Round 9🇮🇹 ITALY41NT♠2+2-2
-3.2Round 17🇵🇱 POLAND125♦♠3-2-7
-3.3Round 22🇫🇷 FRANCE283♣♥K=+1
-3.5Round 21🇷🇴 ROMANIA42♣♦7+2+10
-3.6Round 1🇮🇱 ISRAEL63NT♠T-2-8
-3.7Round 9🇮🇹 ITALY94♥♦A-1-5
-3.8Round 3🇯🇵 JAPAN83NT♥9+1-1
-3.8Round 5🇧🇲 BERMUDA126♥♠K+1+11
-3.9Round 21🇷🇴 ROMANIA84♣♥A-4-2
-4.1Round 1🇮🇱 ISRAEL14♥♣A-1-4
-4.2Round 12🇮🇳 INDIA183NT♥7+4-3
-4.4Round 1🇮🇱 ISRAEL73♠♦A+1-10
-4.4Round 6🇦🇪 UNITED ARAB EMIRATES264♥♣4-2-3
-4.6Round 22🇫🇷 FRANCE165♣♥K-1-12
-4.7Round 21🇷🇴 ROMANIA75♥x♠K=-8
-4.8Round 12🇮🇳 INDIA194♠♥A=-3
-4.8Round 15🇺🇸 USA1113NT♠6-1-8
-4.9Round 4🇧🇷 BRAZIL264♥♦K+1-10
-5.3Round 18🇺🇸 USA2185♣♠7-1-6
-5.4Round 5🇧🇲 BERMUDA83NT♣Q-3-6
-5.4Round 12🇮🇳 INDIA214♥x♣3-1-8
-5.6Round 15🇺🇸 USA143♣♦A-3-5
-5.6Round 21🇷🇴 ROMANIA32♥♦9+1+0
-6.1Round 10🇷🇪 REUNION183NT♥K=-11
-6.2Round 4🇧🇷 BRAZIL285♥x♠K-3-8
-6.3Round 3🇯🇵 JAPAN74♥♦K=-3
-6.3Round 18🇺🇸 USA2194♠♥7+2-14
-6.3Round 21🇷🇴 ROMANIA97♦x♣K-6+1
-6.4Round 15🇺🇸 USA124♠♣J-1-12
-6.8Round 15🇺🇸 USA1133NT♠3-3-10
-6.9Round 10🇷🇪 REUNION196♠♥5-2+0
-8.0Round 6🇦🇪 UNITED ARAB EMIRATES204♠♣5+1-2
-8.7Round 9🇮🇹 ITALY116♦♠2-1-11
-9.1Round 20🇨🇦 CANADA282♠x♣A-3-9
-9.4Round 9🇮🇹 ITALY65♠♥Q-1-12
-9.6Round 3🇯🇵 JAPAN23NT♣T+1-11
-10.0Round 22🇫🇷 FRANCE216♠♥Q-1-11
-11.0Round 9🇮🇹 ITALY26♠x♥K-3-9
-11.2Round 18🇺🇸 USA2234♠♣7=-10
-11.8Round 22🇫🇷 FRANCE184♠x♥T+1-8
-12.9Round 15🇺🇸 USA164♥♣J=-11