🇨🇳 CHEN Yichao · China

15rank
+59.9Butler · 150 bds
+0.40per board
±5.0swing
+0.46adjusted /bd
Butler per round: 20.7 -3 1.3 -25.2 5.3 11.9 18.1 -2.7 31.9 -9.5 -20.1 0.3 24.1 -5.1 11.9by round

Strength of schedule: opponents averaged +0.06/bd (a tough draw) → opponent-adjusted +0.46/bd

By role: declaring +0.52/bd (71) · defending +0.29/bd (79)

By vulnerability: not vulnerable +0.40/bd (150)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2Z.LinK.Asplund – E.FryklundClosed10+20.7+2.07·
Round 3Z.LinM.Rehder – J.KaterbauOpen10-3.0-0.30·
Round 4Z.LinE.Skjetne – S.SimonsenClosed10+1.3+0.13·
Round 5Z.LinK.Fay – J.ChiuOpen10-25.2-2.52·
Round 6J.HuP.Bachiaju – M.AgarwalClosed10+5.3+0.53·
Round 7J.HuA.Scanavino – F.FerroOpen10+11.9+1.19·
Round 8J.HuC.Lorenzini – C.GrossetClosed10+18.1+1.81·
Round 9J.HuD.Lavee – S.NystromOpen10-2.7-0.27·
Round 10Z.LinN.Nakayama – S.GotodaClosed10+31.9+3.19·
Round 11J.HuM.Di Franco – A.MannoOpen10-9.5-0.95·
Round 12Z.LinJ.Hop – V.De PagterClosed10-20.1-2.01·
Round 14J.HuA.Edgtton – A.HungClosed10+0.3+0.03·
Round 15J.HuE.Argelazi – A.BirmanOpen10+24.1+2.41·
Round 16J.HuI.Veselov – D.DobrinClosed10-5.1-0.51·
Round 17J.HuM.Meckstroth – K.Dwyer RimstedtClosed10+11.9+1.19·

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
+16.9Round 2🇸🇪 Sweden164♥♣2-4·
+12.9Round 15🇮🇱 Israel303Nx♦T-4·
+12.5Round 10🇯🇵 Japan92♦x♣A-3·
+11.8Round 11🇮🇹 Italy205♦x♦2-3·
+11.0Round 6🇮🇳 India284♥♠8-2·
+10.9Round 2🇸🇪 Sweden194N♦Q-1·
+10.0Round 4🇳🇴 Norway32♥x♠Q+1·
+9.3Round 10🇯🇵 Japan14♠♦3=·
+8.9Round 9🇨🇦 Canada292♦♦7-4·
+8.5Round 8🇫🇷 France203N♦6-3·
+7.8Round 14🇦🇺 Australia124♠x♥K=·
+7.2Round 7🇦🇷 Argentina103Nx♦2-1·
+7.0Round 3🇩🇪 Germany264♥♦A=·
+6.5Round 17🇺🇸 USA 2162♥x♠6-3·
+6.3Round 12🇳🇱 Netherlands214♠x♦3-1·
+6.1Round 3🇩🇪 Germany232N♥3=·
+6.1Round 6🇮🇳 India303♠x♥K-2·
+6.1Round 7🇦🇷 Argentina56♦♠A-1·
+6.0Round 7🇦🇷 Argentina43♣♥A=·
+5.3Round 17🇺🇸 USA 2116♣x♦A-1·
+5.1Round 16🇷🇺 Russia22♠♦4+1·
+5.0Round 17🇺🇸 USA 2183N♣3-1·
+4.9Round 8🇫🇷 France163N♠3=·
+4.8Round 12🇳🇱 Netherlands243N♦8+1·
+4.7Round 2🇸🇪 Sweden123♥♣2=·
+4.6Round 10🇯🇵 Japan64♥♠J=·
+4.6Round 17🇺🇸 USA 2155♠x♣6-2·
+4.3Round 3🇩🇪 Germany244♥♦2-1·
+4.3Round 17🇺🇸 USA 2206♣x♠A-1·
+4.1Round 10🇯🇵 Japan52♥♣K=·
+3.8Round 10🇯🇵 Japan23N♦6=·
+3.7Round 8🇫🇷 France133♦♠T=·
+3.7Round 15🇮🇱 Israel215♣♥3+1·
+3.6Round 4🇳🇴 Norway13N♣Q-3·
+3.6Round 4🇳🇴 Norway41N♥5-2·
+3.4Round 6🇮🇳 India263N♣2+2·
+3.3Round 5🇺🇸 USA 1156♥♦3-1·
+3.3Round 8🇫🇷 France141N♣2-1·
+3.3Round 9🇨🇦 Canada215♦♠3+1·
+3.3Round 9🇨🇦 Canada282♥♠J=·
+3.1Round 17🇺🇸 USA 2173N♥T+2·
+2.9Round 7🇦🇷 Argentina12♦♠J=·
+2.9Round 14🇦🇺 Australia201N♥3-2·
+2.5Round 3🇩🇪 Germany303♦♥Q+1·
+2.5Round 14🇦🇺 Australia133N♥6-1·
+2.5Round 15🇮🇱 Israel244♠♣Q+2·
+2.5Round 15🇮🇱 Israel253N♠J=·
+2.4Round 6🇮🇳 India291N♠8+2·
+2.3Round 11🇮🇹 Italy116♦♥Q+1·
+2.3Round 15🇮🇱 Israel283N♣Q=·
+2.2Round 8🇫🇷 France192♥♦A=·
+2.2Round 11🇮🇹 Italy134♠x♦5-2·
+2.2Round 15🇮🇱 Israel291N♦2+3·
+1.5Round 6🇮🇳 India243♦♣A+1·
+1.4Round 6🇮🇳 India214♠♦6+1·
+1.4Round 10🇯🇵 Japan43♥♣A=·
+1.4Round 14🇦🇺 Australia164♠♣2=·
+1.4Round 15🇮🇱 Israel222♥♠T=·
+1.3Round 7🇦🇷 Argentina23N♠J+2·
+1.1Round 2🇸🇪 Sweden152N♦T=·
+1.1Round 8🇫🇷 France184♠♥4-1·
+1.1Round 12🇳🇱 Netherlands302♠♣A=·
+0.9Round 15🇮🇱 Israel273♠♣K-1·
+0.7Round 4🇳🇴 Norway103♦♥K+1·
+0.7Round 10🇯🇵 Japan34♠♣Q+2·
+0.7Round 16🇷🇺 Russia104♥♠8=·
+0.6Round 14🇦🇺 Australia194♠♥4+1·
+0.5Round 9🇨🇦 Canada224♠♥A+2·
+0.4Round 9🇨🇦 Canada304♥♦6+2·
+0.3Round 4🇳🇴 Norway81♠♥K-2·
+0.3Round 7🇦🇷 Argentina73N♣K=·
+0.3Round 8🇫🇷 France174♠x♥A-3·
+0.3Round 16🇷🇺 Russia54♠♥J=·
+0.2Round 4🇳🇴 Norway53♠♣8=·
+0.1Round 2🇸🇪 Sweden133N♥8=·
+0.1Round 6🇮🇳 India222♠♥7=·
+0.1Round 7🇦🇷 Argentina61N♥4-2·
+0.0Round 7🇦🇷 Argentina34♠♥J+1·
+0.0Round 9🇨🇦 Canada253♠♥A=·
+0.0Round 16🇷🇺 Russia13N♥T+1·
+0.0Round 17🇺🇸 USA 2144♠♥8+1·
-0.1Round 4🇳🇴 Norway93N♠2+2·
-0.1Round 9🇨🇦 Canada273♥♦Q-2·
-0.1Round 14🇦🇺 Australia183♥♣3=·
-0.2Round 4🇳🇴 Norway73♦♣K+1·
-0.3Round 3🇩🇪 Germany295♥♠4-1·
-0.4Round 2🇸🇪 Sweden173N♠Q+1·
-0.4Round 5🇺🇸 USA 1194♠♣T=·
-0.5Round 3🇩🇪 Germany214♥♥6=·
-0.5Round 5🇺🇸 USA 1124♥♠A=·
-0.5Round 11🇮🇹 Italy183♣♦6=·
-0.7Round 2🇸🇪 Sweden112♠♣K+2·
-0.7Round 11🇮🇹 Italy174♥♦Q+2·
-0.8Round 10🇯🇵 Japan101N♦9=·
-0.9Round 14🇦🇺 Australia112♥x♣K-2·
-0.9Round 14🇦🇺 Australia144♥♠K=·
-1.1Round 8🇫🇷 France154♠♦5+1·
-1.1Round 16🇷🇺 Russia74♥♦3+1·
-1.1Round 16🇷🇺 Russia82♦♣6+3·
-1.1Round 16🇷🇺 Russia93♠♣A=·
-1.2Round 12🇳🇱 Netherlands283♠♣2=·
-1.3Round 12🇳🇱 Netherlands254♦♠9-2·
-1.4Round 16🇷🇺 Russia44♠♥Q+1·
-1.4Round 17🇺🇸 USA 2136♥♣7=·
-1.5Round 15🇮🇱 Israel232♣♠A-1·
-1.6Round 10🇯🇵 Japan73N♦3+3·
-1.6Round 11🇮🇹 Italy154♥♣9+1·
-1.7Round 2🇸🇪 Sweden184♠♦K=·
-1.7Round 8🇫🇷 France122♠♥A=·
-1.9Round 3🇩🇪 Germany225♣♥3+1·
-2.1Round 3🇩🇪 Germany253♠♠3-2·
-2.1Round 10🇯🇵 Japan86♣♠9+1·
-2.1Round 16🇷🇺 Russia33N♦5-2·
-2.3Round 5🇺🇸 USA 1202♥x♠Q-1·
-2.6Round 2🇸🇪 Sweden204♥♠3+1·
-2.6Round 17🇺🇸 USA 2194♥♠4+1·
-2.8Round 9🇨🇦 Canada264♥♣5+2·
-2.8Round 15🇮🇱 Israel263N♥7-1·
-2.9Round 5🇺🇸 USA 1132♠♣J-1·
-2.9Round 14🇦🇺 Australia154♥♠A+1·
-3.1Round 8🇫🇷 France114♥♣Q+1·
-3.3Round 6🇮🇳 India274♠♦8-1·
-3.4Round 5🇺🇸 USA 1144♠♦6=·
-3.8Round 5🇺🇸 USA 1113N♥8+1·
-3.8Round 5🇺🇸 USA 1163♣♠J+1·
-3.9Round 11🇮🇹 Italy162♥♥3=·
-3.9Round 12🇳🇱 Netherlands235♣x♥K-1·
-4.1Round 7🇦🇷 Argentina92♣x♦T=·
-4.2Round 11🇮🇹 Italy144♥x♣K-1·
-4.3Round 5🇺🇸 USA 1182♠♦6+2·
-4.4Round 16🇷🇺 Russia66♠♦J=·
-4.9Round 12🇳🇱 Netherlands224♠♥6-2·
-5.6Round 12🇳🇱 Netherlands263N♣2=·
-6.1Round 6🇮🇳 India253N♠5=·
-6.1Round 9🇨🇦 Canada234♥♣4+2·
-6.4Round 4🇳🇴 Norway63N♠6=·
-7.1Round 5🇺🇸 USA 1174♠x♣K-2·
-7.4Round 11🇮🇹 Italy123N♥A-3·
-7.5Round 11🇮🇹 Italy193N♠6=·
-7.5Round 12🇳🇱 Netherlands276♠x♦Q-2·
-7.6Round 2🇸🇪 Sweden143♠x♥A+1·
-7.9Round 7🇦🇷 Argentina86♥♠4=·
-7.9Round 12🇳🇱 Netherlands296♦♣9=·
-8.8Round 3🇩🇪 Germany286♠♦T-2·
-9.3Round 3🇩🇪 Germany272♠x♠3=·
-10.1Round 9🇨🇦 Canada246♠♥J-3·
-10.1Round 14🇦🇺 Australia174♠x♦K=·
-10.4Round 4🇳🇴 Norway25♦♠A-1·
-11.2Round 6🇮🇳 India234♥x♦A=·
-12.9Round 17🇺🇸 USA 2126♣x♠A=·