CHAN Yiu · BEIJING-HONGKONG

538rank
-34.9Butler · 120 bds
-0.29per board
±4.4swing
+0.56vs par /bd · #133/672
-0.11adjusted /bd
Butler per round: -1.2 -14.1 -3.1 34.8 -4.7 -22.1 2.6 -15.1 -19.9 -0.6 2.9 5.6by round

vs par split: bidding -0.20 · play +0.95

Strength of schedule: opponents averaged +0.18/bd (a tough draw) → opponent-adjusted -0.11/bd

Card play — on target: opening leads 82.6% #307 of 671 · declarer play 88.2% #98 of 671 · defence 88.6% #195 of 672

Card play by contract type — on target
vs NTvs a suit
Opening leads·82.6% (23)
Declarer play·88.2% (17)
Defence·88.6% (44)

Opening leads by suit led: ♠ 75.0% (4) · ♥ 100.0% (7) · ♦ 71.4% (7) · ♣ 80.0% (5)

vs par by strain: a suit +0.76 (86)

vs par by level: part-score -0.12 (40) · game +0.59 (42) · slam +11.25 (4)

By role: declaring +0.10/bd (-0.48 vs par · 60) · defending -0.68/bd (+1.60 vs par · 60)

By vulnerability: vulnerable -0.42/bd (+0.64 vs par · 67) · not vulnerable -0.13/bd (+0.45 vs par · 53)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1J.LvT.Garvey – J.CarrollOpen10-1.2-0.12-1.70
Round 2J.LvJ.Ma – R.ShiClosed10-14.1-1.41+2.70
Round 3Q.GongZ.Chen – H.LiuOpen10-3.1-0.31+0.80
Round 4Q.GongJ.Goenka – S.IyengarClosed10+34.8+3.48+3.50
Round 5J.LvZ.Gu – Y.WangOpen10-4.7-0.47+0.30
Round 6J.LvG.Xin – X.LinOpen10-22.1-2.21-1.30
Round 7J.LvJ.Coniglio – J.EdelsteinOpen10+2.6+0.26+1.60
Round 8J.LvY.Lin – X.SunOpen10-15.1-1.51-2.20
Round 9J.LvJ.Cao – G.ZanOpen10-19.9-1.99-1.90
Round 10J.LvK.Murniati – S.DewiOpen10-0.6-0.06-1.40
Round 12J.LvC.Liu – W.NieOpen10+2.9+0.29+1.50
Round 13J.LvF.Liu – Z.WangClosed10+5.6+0.56+4.80

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
+10.7Round 4INDIA RED73N♦Q+1+10
+10.5Round 13TONGJI UNIVERSITY105♦x♠Q=+12
+10.0Round 12CHINA LIUPANSHUI305♦x♥K-3+8
+8.7Round 4INDIA RED15♣♥K+1+8
+8.5Round 10INDONESIA LADIES94♠x♥6-4+11
+8.2Round 1JACKSON82♠x♦K-3+9
+7.6Round 4INDIA RED42♥♠8=+12
+6.8Round 13TONGJI UNIVERSITY87♠♠3-1+17
+6.5Round 3SHANGHAI YOUTH 2303N♦5-1+12
+6.5Round 5PUDONGPUFA CLUB133N♠2+2+6
+5.3Round 6SHANGHAI JIAHENG216♥♣A-1+11
+4.8Round 8PUDONG LUOGEBEIER191N♣9+3+2
+4.7Round 9JIANPING CONSTRUCTION291N♠2=+5
+4.2Round 3SHANGHAI YOUTH 2264♠♦Q=+8
+3.6Round 4INDIA RED101♠♣J+1+6
+3.6Round 13TONGJI UNIVERSITY44♠♥3=-1
+3.1Round 9JIANPING CONSTRUCTION264♠♥2-1+6
+2.9Round 6SHANGHAI JIAHENG264♠♥Q+2+6
+2.9Round 10INDONESIA LADIES11N♦A=+0
+2.6Round 4INDIA RED51N♦5=+5
+2.6Round 12CHINA LIUPANSHUI283♠♠5+1+7
+2.4Round 4INDIA RED33N♦2+2+0
+2.3Round 1JACKSON34♠x♣A-3-4
+2.3Round 3SHANGHAI YOUTH 2234♠♥K+1+0
+2.3Round 5PUDONGPUFA CLUB184♠♣K-1+5
+2.2Round 3SHANGHAI YOUTH 2242♣♥10-1+3
+2.2Round 3SHANGHAI YOUTH 2293N♥K+2+0
+2.2Round 13TONGJI UNIVERSITY14♠♥Q+1+1
+2.1Round 2TIANJIN UNION162N♠K=+0
+1.9Round 7RAULD14♠♠8+2+1
+1.9Round 7RAULD74♠♥5-1+6
+1.8Round 6SHANGHAI JIAHENG292♠♥J-2+2
+1.7Round 3SHANGHAI YOUTH 2252♠♦4-3+2
+1.6Round 2TIANJIN UNION184♠♠10-1+4
+1.6Round 9JIANPING CONSTRUCTION222♠♦6+3+6
+1.5Round 2TIANJIN UNION192♦♥8+3+1
+1.4Round 1JACKSON93N♥9+2+0
+1.4Round 2TIANJIN UNION172♣♠J+3+8
+1.3Round 4INDIA RED93♣♣2-1+4
+1.3Round 13TONGJI UNIVERSITY74♥♦A+1+0
+0.9Round 8PUDONG LUOGEBEIER134♠♥A+2+7
+0.8Round 5PUDONGPUFA CLUB161N♠5-2+1
+0.8Round 7RAULD55♣♦5-1+3
+0.8Round 7RAULD94♥♠8+2-11
+0.8Round 12CHINA LIUPANSHUI253N♥5+2+6
+0.7Round 2TIANJIN UNION204N♠K+1+13
+0.6Round 1JACKSON13♦♣K+2+7
+0.6Round 1JACKSON24♠x♣Q-2+0
+0.6Round 5PUDONGPUFA CLUB204♠♣K=-1
+0.6Round 8PUDONG LUOGEBEIER173N♥9=-6
+0.5Round 5PUDONGPUFA CLUB113♣♠6-1-4
+0.5Round 12CHINA LIUPANSHUI233N♠K-1+6
+0.4Round 9JIANPING CONSTRUCTION285♦♥9+1-5
+0.3Round 3SHANGHAI YOUTH 2223N♥2=+5
+0.3Round 7RAULD102♥♣Q=+1
+0.2Round 1JACKSON72♠♦2-3-8
+0.2Round 6SHANGHAI JIAHENG274♥♦K-1+5
+0.2Round 7RAULD44♥♠8=+1
+0.1Round 7RAULD64♥♥J=+1
+0.0Round 7RAULD33♦x♣2-1+9
+0.0Round 12CHINA LIUPANSHUI214♦♠6=+1
+0.0Round 13TONGJI UNIVERSITY94♠♣3+1+0
-0.1Round 4INDIA RED23N♦3+1+0
-0.2Round 6SHANGHAI JIAHENG222♠♦K=-5
-0.2Round 9JIANPING CONSTRUCTION231N♥4+1+0
-0.3Round 10INDONESIA LADIES54♠♦9+2-11
-0.4Round 6SHANGHAI JIAHENG233♥♦5=+0
-0.5Round 4INDIA RED63♠♣10+1-10
-0.5Round 10INDONESIA LADIES64♠♣K=+0
-0.7Round 5PUDONGPUFA CLUB143♣♠Q-1-2
-0.8Round 1JACKSON62♠♦6-1+0
-0.8Round 12CHINA LIUPANSHUI224♣♥K=+0
-0.8Round 13TONGJI UNIVERSITY33N♦10+2+0
-0.9Round 9JIANPING CONSTRUCTION244♥♦4=+5
-0.9Round 10INDONESIA LADIES25♥x♦2-1-5
-1.0Round 10INDONESIA LADIES42♠♣3-1-5
-1.0Round 10INDONESIA LADIES102♠♣5+1-1
-1.2Round 5PUDONGPUFA CLUB172♠♠5-1+2
-1.3Round 10INDONESIA LADIES83♦x♠3-1-5
-1.3Round 12CHINA LIUPANSHUI241N♣4+2-7
-1.5Round 4INDIA RED84♣♠A-3+0
-1.5Round 10INDONESIA LADIES72♠♦9+1+8
-1.6Round 7RAULD85♥x♣A-1+5
-1.8Round 1JACKSON54♠♦A-1-5
-1.8Round 2TIANJIN UNION123♥♠A=+0
-1.8Round 7RAULD21N♠K+1+0
-1.9Round 2TIANJIN UNION133♣♣K=-6
-1.9Round 8PUDONG LUOGEBEIER123N♣10-1-5
-2.1Round 6SHANGHAI JIAHENG303N♥2-2-6
-2.3Round 12CHINA LIUPANSHUI264♠♣A-1-6
-2.4Round 2TIANJIN UNION154♥♠9+2-1
-2.4Round 8PUDONG LUOGEBEIER115♥x♣K-1-5
-2.4Round 8PUDONG LUOGEBEIER182♠♥Q-1-4
-2.6Round 5PUDONGPUFA CLUB192♥♦2+1-1
-2.7Round 6SHANGHAI JIAHENG242N♠K=+0
-2.8Round 8PUDONG LUOGEBEIER153♥♦Q+1-1
-2.9Round 8PUDONG LUOGEBEIER162N♠5-2-2
-3.1Round 8PUDONG LUOGEBEIER142♥♦A-1-4
-3.1Round 12CHINA LIUPANSHUI274♥♣5+1+5
-3.3Round 13TONGJI UNIVERSITY24♥♠3=+1
-3.5Round 12CHINA LIUPANSHUI292♠♥Q=-5
-4.2Round 9JIANPING CONSTRUCTION271♦x♥K=-7
-4.4Round 9JIANPING CONSTRUCTION304♠x♣K-1-6
-4.5Round 5PUDONGPUFA CLUB122♠♣A-3-5
-4.6Round 1JACKSON42♠♦Q=-6
-5.5Round 10INDONESIA LADIES34♥♣A-1-6
-5.9Round 8PUDONG LUOGEBEIER203Nx♥10=-4
-6.3Round 3SHANGHAI YOUTH 2283N♠4+1-5
-6.4Round 5PUDONGPUFA CLUB156♦♠J=+2
-6.5Round 3SHANGHAI YOUTH 2273N♠Q=-7
-6.5Round 13TONGJI UNIVERSITY63N♥2+2+11
-7.1Round 2TIANJIN UNION146♦♣6+1+15
-7.3Round 1JACKSON103Nx♠Q+1-10
-8.2Round 2TIANJIN UNION113N♥4+1-7
-8.2Round 13TONGJI UNIVERSITY54♠x♦10-5+7
-8.5Round 9JIANPING CONSTRUCTION213N♦4-1-11
-9.7Round 3SHANGHAI YOUTH 2213N♣10=-10
-11.5Round 9JIANPING CONSTRUCTION254♠x♥Q-4-12
-12.9Round 6SHANGHAI JIAHENG255♦x♥A-4-12
-14.0Round 6SHANGHAI JIAHENG282♥x♠Q-5-14