CHAI Junyang · COFCO YALONG BAY

44rank
+48.2Butler · 146 bds
+0.33per board
±4.4swing
-0.75vs par /bd · #105/132
+0.37adjusted /bd
Butler per round: 9 10.3 15.9 13.3 -11.4 2.9 -3.6 12.5 -1.3 6.6 7.6 -2 -14.9 -1 20.2 12.1 8.6 6.8 -15 -9.3 -19.1by round

vs par split: bidding -0.75 · play +0.01

Strength of schedule: opponents averaged +0.04/bd (an average draw) → opponent-adjusted +0.37/bd

Card play — on target: opening leads 85.1% #27 of 132 · declarer play 52.9% #124 of 132 · defence 82.1% #100 of 132

Card play by contract type — on target
vs NTvs a suit
Opening leads77.8% (9)86.8% (38)
Declarer play20.0% (10)66.7% (24)
Defence83.3% (24)81.7% (60)

Opening leads by suit led: ♠ 66.7% (9) · ♥ 86.7% (15) · ♦ 93.3% (15) · ♣ 87.5% (8)

vs par by strain: NT -0.84 (44) · a suit -0.71 (102)

vs par by level: part-score -0.99 (83) · game -0.68 (56) · slam +1.57 (7)

By role: declaring -0.93/bd (-4.95 vs par · 62) · defending +1.26/bd (+2.36 vs par · 84)

By vulnerability: vulnerable +0.93/bd (-1.03 vs par · 73) · not vulnerable -0.27/bd (-0.47 vs par · 73)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1J.OuyangM.Iacapraro – S.BoldtOpen7+9.0+1.29-0.71
Round 4F.GeJ.Park – Y.KimOpen7+10.3+1.47-3.14
Round 5F.GeR.Elmaroufi – H.IraqiClosed7+15.9+2.27+1.00
Round 6J.OuyangC.Arnolds – W.Van ZwolClosed7+13.3+1.90-1.43
Round 7J.OuyangA.Nestoridis – K.DriverClosed7-11.4-1.63-3.00
Round 9J.OuyangM.Li – W.ZhangClosed7+2.9+0.41+0.29
Round 10J.OuyangW.Wang – J.LiuOpen7-3.6-0.51+1.86
Round 11F.GeA.Guan – M.XiaClosed7+12.5+1.79+2.71
Round 12F.GeB.Fu – H.LiOpen6-1.3-0.22+0.50
Round 13F.GeR.Gu – P.ZhuClosed7+6.6+0.94-3.71
Round 14J.OuyangW.Hu – Y.WangClosed7+7.6+1.09+0.57
Round 15J.OuyangX.Li – J.YangOpen7-2.0-0.29-1.29
Round 17J.OuyangY.Lu – H.WangOpen7-14.9-2.13-2.71
Round 18J.OuyangH.Zhu – J.WangClosed7-1.0-0.14+0.14
Round 19J.OuyangZ.Lam – S.LianClosed7+20.2+2.89+2.43
Round 20F.GeJ.Moers – C.D'OvidioOpen7+12.1+1.73+0.14
Round 21J.OuyangH.Eythorsdottir – L.DeasOpen7+8.6+1.23+2.14
Round 22J.OuyangS.Shi – D.BerkowitzClosed7+6.8+0.97-0.86
Round 23J.OuyangV.Gromova – T.PonomarevaOpen7-15.0-2.14-2.43
Round 24J.OuyangA.Sarniak – C.BaldyszClosed7-9.3-1.33-6.29
Round 25J.OuyangM.Wortel – M.MichielsenOpen7-19.1-2.73-1.71

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
+12.5Round 4SCITY223NT♥10+4+13
+12.1Round 19SINGAPORE134♦♠Q-1+17
+12.1Round 21MOSS234♥♦5-2+13
+10.8Round 11HUBEI YIHUA176♠♦4-1+14
+10.3Round 4SCITY243NT♠5-1+11
+10.3Round 18SHANDONG76♥♦10-1+13
+9.9Round 19SINGAPORE121♠x♥9-4+12
+9.8Round 6NETHERLANDS103♦x♣A-3+12
+9.6Round 5MOROCCAN WOMEN TEAM72NT♥5+2+10
+8.6Round 14CHINA YELLOW TEAM94♠x♦A-3+9
+7.8Round 20GWADAGIRLS206♣♠A-1+12
+7.6Round 11HUBEI YIHUA204♥♦6-2+13
+7.3Round 6NETHERLANDS145♥♠A-1+8
+7.3Round 20GWADAGIRLS153NT♠3-2+7
+6.6Round 13BEIJING SHARE SUN24♠♥5-1+12
+6.3Round 5MOROCCAN WOMEN TEAM42NT♥2=+11
+6.2Round 15DEZHOUQIAOXIE(PUSHI)194♥♠Q-1+5
+5.4Round 19SINGAPORE144♥♣4-1+10
+4.7Round 6NETHERLANDS94♥♦Q+1-12
+4.7Round 21MOSS221NT♥Q+4+6
+4.7Round 22POLLACK34♠x♥8-3+8
+4.6Round 1EL ROSARIO63NT♦Q-1-2
+4.2Round 18SHANDONG27♣♥Q-1+13
+3.9Round 24PLATINUM CEM186♦♥2=-11
+3.8Round 9KUNMING LIJIAN41NT♣A+1+12
+3.8Round 24PLATINUM CEM202♦♦Q+1+6
+3.7Round 9KUNMING LIJIAN13NT♦9+2+1
+3.5Round 10CHINA ORANGE TEAM134♠♥6+2+17
+2.9Round 10CHINA ORANGE TEAM92♠♥8=-1
+2.9Round 13BEIJING SHARE SUN42♥♦A+1+1
+2.8Round 1EL ROSARIO13♦♠A-3+6
+2.8Round 12CHINA PINK TEAM242♠♦A+2+6
+2.4Round 1EL ROSARIO42♠♥K-1-1
+2.4Round 22POLLACK14♠♣A-1-2
+2.3Round 1EL ROSARIO75♣♥5=-1
+2.3Round 13BEIJING SHARE SUN72♠♣4-1-1
+2.3Round 15DEZHOUQIAOXIE(PUSHI)201NT♠7+1+5
+2.2Round 5MOROCCAN WOMEN TEAM33NT♠J-2+6
+2.2Round 9KUNMING LIJIAN52♥♠K+1+0
+2.1Round 15DEZHOUQIAOXIE(PUSHI)172♠♥6-2+0
+2.1Round 21MOSS243♥♥A-2+0
+1.9Round 4SCITY253NT♣5+3-12
+1.8Round 23JOEL92♠♥7+1+0
+1.7Round 21MOSS264♥♦Q+1+0
+1.6Round 25BAKER222♠♦4-2+0
+1.5Round 12CHINA PINK TEAM272NT♠4+1+7
+1.5Round 14CHINA YELLOW TEAM102♠♠7+2-10
+1.5Round 20GWADAGIRLS213♣♠K=+0
+1.4Round 12CHINA PINK TEAM224♠♥4-1-2
+1.4Round 22POLLACK63♠♥K+1-10
+1.2Round 11HUBEI YIHUA164♥♠4+1+0
+1.2Round 19SINGAPORE84♠♥4-1-4
+1.2Round 24PLATINUM CEM151NT♦7-1+0
+1.1Round 4SCITY283NT♣4-1+6
+1.1Round 14CHINA YELLOW TEAM142♠♦5+1+7
+1.1Round 22POLLACK51NT♠Q-1-1
+1.0Round 13BEIJING SHARE SUN31NT♠7+2-10
+0.9Round 5MOROCCAN WOMEN TEAM22♥♣6+1+0
+0.9Round 20GWADAGIRLS193NT♥6+1+0
+0.8Round 22POLLACK42♠♦7+1+0
+0.7Round 6NETHERLANDS132♠♥5=-1
+0.7Round 9KUNMING LIJIAN22♥♦Q+3+10
+0.6Round 11HUBEI YIHUA153♥♠9-1+3
+0.6Round 23JOEL103♠♦K=+0
+0.4Round 5MOROCCAN WOMEN TEAM53♥♣A=+0
+0.4Round 12CHINA PINK TEAM282♠x♦A-2+2
+0.4Round 20GWADAGIRLS164♠♣2+1-13
+0.3Round 17CHINA RED TEAM73♠♥K+1+10
+0.2Round 1EL ROSARIO51NT♠9-3+0
+0.2Round 20GWADAGIRLS173NT♥10=+1
+0.1Round 9KUNMING LIJIAN32♠♦8-1-3
-0.0Round 7BLOOM152♠♣K+2-13
+0.0Round 14CHINA YELLOW TEAM83NT♠7+2+1
-0.2Round 7BLOOM193♦♠A=+1
-0.2Round 7BLOOM204♠♦8+2+13
-0.2Round 14CHINA YELLOW TEAM123NT♣7+1+0
-0.3Round 18SHANDONG45♥♠4=+0
-0.4Round 5MOROCCAN WOMEN TEAM66♣♠8+1-13
-0.5Round 15DEZHOUQIAOXIE(PUSHI)162NT♥2-1-3
-0.5Round 25BAKER282♥♣2-1+1
-0.6Round 10CHINA ORANGE TEAM112NT♦4+1-2
-0.6Round 11HUBEI YIHUA184♥♠6+1+0
-0.8Round 9KUNMING LIJIAN72♣♦Q=-6
-0.8Round 22POLLACK72♦♣A+2+0
-1.0Round 1EL ROSARIO23NT♠Q-1-5
-1.0Round 14CHINA YELLOW TEAM115♣♥4=-3
-1.0Round 18SHANDONG13NT♦9+2+0
-1.1Round 7BLOOM214♠♣7-1-5
-1.2Round 4SCITY273♣♣8+3-6
-1.2Round 24PLATINUM CEM163♣♥Q+1-10
-1.2Round 25BAKER262♦♥3=+0
-1.4Round 13BEIJING SHARE SUN64♥♦6=-11
-1.6Round 7BLOOM172♠♥4+2-1
-1.6Round 10CHINA ORANGE TEAM81NT♠2=+1
-1.6Round 13BEIJING SHARE SUN12♠♥A-2-7
-1.6Round 17CHINA RED TEAM42♣♠K+2+0
-1.6Round 21MOSS283♣♠A+1+5
-1.7Round 10CHINA ORANGE TEAM143♠♦J=-1
-1.7Round 24PLATINUM CEM172♠♣3-2-8
-1.8Round 23JOEL81NT♥Q=+1
-1.9Round 6NETHERLANDS112NT♠3=+0
-2.0Round 15DEZHOUQIAOXIE(PUSHI)212♠♣10=+0
-2.0Round 17CHINA RED TEAM31NT♣Q+1-10
-2.0Round 21MOSS254♠♦K+1-1
-2.0Round 23JOEL112NT♣Q-2-11
-2.2Round 25BAKER244♥♣3=+11
-2.3Round 1EL ROSARIO32♠♣9-2-2
-2.3Round 17CHINA RED TEAM13NT♦5=+0
-2.3Round 19SINGAPORE93NT♥J-2-13
-2.4Round 14CHINA YELLOW TEAM132NT♠7+1+0
-2.4Round 19SINGAPORE112♠♦6+2-6
-2.5Round 4SCITY236NT♦10-2-17
-2.5Round 25BAKER274♠♣A=-3
-2.6Round 17CHINA RED TEAM21NT♥8-2+0
-2.6Round 23JOEL135♣♥A+1-3
-2.8Round 22POLLACK22♠♥6+1-1
-2.9Round 6NETHERLANDS83♠♣A-3-7
-3.0Round 10CHINA ORANGE TEAM103♠x♥7-2+0
-3.1Round 5MOROCCAN WOMEN TEAM13♣♥9=-7
-3.1Round 10CHINA ORANGE TEAM123♥♦K=-1
-3.2Round 13BEIJING SHARE SUN54♠♦4=-10
-3.2Round 17CHINA RED TEAM64♠♣2+2-17
-3.3Round 11HUBEI YIHUA192♠♦K-1-5
-3.4Round 12CHINA PINK TEAM253NT♣4+2+0
-3.5Round 17CHINA RED TEAM52♥♠9+3-2
-3.7Round 7BLOOM182NT♥5-2-6
-3.7Round 19SINGAPORE103♠♥4-1+1
-3.8Round 11HUBEI YIHUA214♥♦K-2-6
-3.9Round 18SHANDONG32♣♥10+1-5
-4.0Round 12CHINA PINK TEAM264♠♣7+1-10
-4.1Round 23JOEL143NT♦5+3-1
-4.4Round 6NETHERLANDS123NT♣4-1-10
-4.6Round 7BLOOM164♣♠2=-10
-4.7Round 15DEZHOUQIAOXIE(PUSHI)152♦♠K+2-6
-4.7Round 18SHANDONG55♥x♣K=-8
-5.1Round 25BAKER253NT♦3-2-7
-5.4Round 15DEZHOUQIAOXIE(PUSHI)184♥♦Q-1-10
-5.6Round 18SHANDONG63♠x♦4=-12
-6.0Round 20GWADAGIRLS182NT♥5=-6
-6.8Round 9KUNMING LIJIAN62♠♥3-1-12
-6.9Round 23JOEL123NT♣5=-3
-7.3Round 24PLATINUM CEM194♠♦K-1-12
-8.0Round 24PLATINUM CEM212♠x♥10-2-9
-8.4Round 21MOSS272♦x♣7-3-8
-9.2Round 25BAKER232♠♥K-3-14
-11.8Round 4SCITY263NT♣Q-3-17