YU Zhen · SUZHOU TAIHU

266rank
+19.1Butler · 110 bds
+0.17per board
±4.1swing
-1.20vs par /bd · #643/672
+0.05adjusted /bd
Butler per round: -11.2 0.9 5.7 -29.4 2.8 10.5 7.7 18.9 -12.2 19 6.4by round

vs par split: bidding -0.74 · play -0.33

Strength of schedule: opponents averaged -0.12/bd (an easy draw) → opponent-adjusted +0.05/bd

Card play — on target: opening leads 82.4% #317 of 671 · declarer play 76.5% #378 of 671 · defence 90.9% #109 of 672

Card play by contract type — on target
vs NTvs a suit
Opening leads·82.4% (17)
Declarer play·76.5% (17)
Defence·90.9% (33)

Opening leads by suit led: ♠ 100.0% (3) · ♥ 50.0% (4) · ♦ 100.0% (5) · ♣ 80.0% (5)

vs par by strain: a suit -1.07 (70)

vs par by level: part-score +0.59 (27) · game -1.34 (38) · slam -8.00 (5)

By role: declaring -0.14/bd (-3.56 vs par · 61) · defending +0.56/bd (+1.74 vs par · 49)

By vulnerability: vulnerable +0.35/bd (-1.57 vs par · 63) · not vulnerable -0.06/bd (-0.70 vs par · 47)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1L.DuZ.Chen – W.TuOpen10-11.2-1.12-2.50
Round 2L.DuG.Gross – E.MauberquezClosed10+0.9+0.09-4.20
Round 3L.DuN.Shen – C.ChenClosed10+5.7+0.57+1.70
Round 4L.DuT.Teramoto – H.YokoiClosed10-29.4-2.94-2.80
Round 5L.DuM.Park – I.HwangOpen10+2.8+0.28-0.70
Round 7L.DuZ.Wu – Q.QuClosed10+10.5+1.05-0.40
Round 8L.DuF.Macri – P.LambardiClosed10+7.7+0.77+0.40
Round 11Y.WuS.Wang – X.LiuOpen10+18.9+1.89+1.30
Round 12Y.WuJ.Cai – M.WangOpen10-12.2-1.22-2.30
Round 13Y.WuJ.Liu – W.YangOpen10+19.0+1.90-2.00
Round 14Y.WuH.Yang – Y.WangOpen10+6.4+0.64-1.70

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
+12.4Round 1XIAMEN104♥♠4-1+12
+8.4Round 13BEIJING MANGUANFENGYUN86♠♠3=-11
+8.2Round 13BEIJING MANGUANFENGYUN44♠♣J-1+13
+7.9Round 7SHANGHAI YOUTH 584♠x♣A-3+5
+7.8Round 3RIGHT CALL303N♦5-2+12
+7.7Round 8SOCMA114♠x♦J=+7
+7.1Round 2GROSS146♦♠5+1-15
+6.8Round 11SHANGHAI YOUTH 2166♠♣9-1+13
+5.9Round 1XIAMEN74♥♠J=-1
+5.6Round 7SHANGHAI YOUTH 592♥♦3+4+13
+5.5Round 2GROSS122♠♣7-3+4
+4.8Round 13BEIJING MANGUANFENGYUN103N♦9-1+6
+4.7Round 12CHINA KINGDOM262♦♠Q-2+8
+4.2Round 14BEIJING BEI DI KE192N♠6-1-2
+4.0Round 11SHANGHAI YOUTH 2114♦♥2=+7
+3.7Round 3RIGHT CALL265♣♦A=+7
+3.3Round 8SOCMA191N♣2+1+1
+3.3Round 13BEIJING MANGUANFENGYUN24♥♣2=-1
+3.2Round 5HAPPY BRIDGE143♠♦9-1+4
+3.2Round 5HAPPY BRIDGE192♥♣6+2+2
+3.1Round 12CHINA KINGDOM274♥♦Q+1-5
+3.0Round 11SHANGHAI YOUTH 2184♣♠K-2+5
+2.9Round 11SHANGHAI YOUTH 2154♠♣A-1-2
+2.7Round 3RIGHT CALL273N♥7-1+5
+2.5Round 8SOCMA182♠♦Q+1+1
+2.4Round 2GROSS154♥♠9+2+1
+2.4Round 5HAPPY BRIDGE183♠♣K=+0
+2.4Round 14BEIJING BEI DI KE164♠♣6=+0
+2.3Round 3RIGHT CALL234♠♦J+1+0
+2.3Round 5HAPPY BRIDGE171N♠4=-1
+2.3Round 11SHANGHAI YOUTH 2142N♠4+3+15
+2.2Round 14BEIJING BEI DI KE121N♠3-1+5
+2.1Round 11SHANGHAI YOUTH 2122♥x♦A-2-8
+2.1Round 14BEIJING BEI DI KE182♥♥A+2+6
+2.0Round 14BEIJING BEI DI KE151N♠9=-1
+1.9Round 2GROSS111N♥4+1+0
+1.6Round 14BEIJING BEI DI KE114♠♥A-2+5
+1.5Round 4YANAGISAWA33N♦2+1-1
+1.5Round 13BEIJING MANGUANFENGYUN53N♦2+3-12
+1.4Round 1XIAMEN93N♥10+2+0
+1.3Round 3RIGHT CALL293N♥K+1-1
+1.3Round 5HAPPY BRIDGE112♠♦A=+5
+1.3Round 12CHINA KINGDOM304♥♦K-1+5
+1.2Round 11SHANGHAI YOUTH 2132♥♠2=+1
+1.1Round 8SOCMA142♥♠3=+0
+1.0Round 7SHANGHAI YOUTH 521N♠K=-1
+0.9Round 4YANAGISAWA23N♣8+2+1
+0.9Round 7SHANGHAI YOUTH 564♥♥6+1+0
+0.9Round 8SOCMA134♠♦2+2+7
+0.8Round 7SHANGHAI YOUTH 544♥♠9+1+0
+0.7Round 7SHANGHAI YOUTH 5102♥♣Q+1+0
+0.6Round 8SOCMA173N♥3=-6
+0.6Round 14BEIJING BEI DI KE135♠♣K+1-6
+0.5Round 14BEIJING BEI DI KE172N♠4=+0
+0.3Round 3RIGHT CALL212N♣9=+1
+0.3Round 3RIGHT CALL223N♥2=+5
+0.1Round 7SHANGHAI YOUTH 513N♣3+1+1
+0.1Round 7SHANGHAI YOUTH 532♣♥A+1-9
+0.0Round 3RIGHT CALL251N♥10=+0
-0.0Round 13BEIJING MANGUANFENGYUN94♠♦5+1+0
-0.2Round 5HAPPY BRIDGE123♣♣9=+0
-0.2Round 13BEIJING MANGUANFENGYUN33N♦10+1-1
-0.3Round 4YANAGISAWA71N♥4=-2
-0.3Round 4YANAGISAWA84♦♣Q-2+1
-0.5Round 12CHINA KINGDOM233N♠K-1-6
-0.6Round 5HAPPY BRIDGE204♠♣A=+1
-0.7Round 2GROSS203N♠4+2-13
-0.8Round 2GROSS173♣♠J+1-8
-0.8Round 4YANAGISAWA64♥♠Q-3-11
-0.8Round 12CHINA KINGDOM253N♥5+2-6
-0.9Round 11SHANGHAI YOUTH 2203N♠6+2-13
-1.0Round 4YANAGISAWA51N♦5-1+1
-1.0Round 12CHINA KINGDOM241♥♦A-1+5
-1.1Round 2GROSS161N♠10=+1
-1.1Round 8SOCMA163♠♥A=+0
-1.2Round 5HAPPY BRIDGE161N♦5=-2
-1.2Round 11SHANGHAI YOUTH 2194♠♣J+1-1
-1.2Round 13BEIJING MANGUANFENGYUN14♠♣4=+0
-1.3Round 11SHANGHAI YOUTH 2173♥♣A-1-4
-1.3Round 13BEIJING MANGUANFENGYUN74♥♣A+1+0
-1.5Round 12CHINA KINGDOM293♠♥Q-1+0
-1.6Round 2GROSS184♠♦7-1-4
-1.7Round 1XIAMEN62N♣5=-1
-1.8Round 1XIAMEN54♠♦A-1-5
-1.9Round 7SHANGHAI YOUTH 574♠♥4-1-6
-1.9Round 8SOCMA123♥♣10-1-5
-2.2Round 14BEIJING BEI DI KE144♠♦5+2-14
-2.4Round 5HAPPY BRIDGE153N♣4+1-11
-2.6Round 8SOCMA204♠♦J=+0
-2.8Round 8SOCMA151N♣6+3-1
-3.3Round 1XIAMEN83N♣7-1-4
-3.4Round 1XIAMEN24♠x♣7-3-5
-3.4Round 4YANAGISAWA92♠♠2+1-1
-3.6Round 12CHINA KINGDOM223N♥K-1-5
-4.3Round 4YANAGISAWA101N♣J-2-2
-4.5Round 13BEIJING MANGUANFENGYUN66♣♦2-1-14
-4.6Round 2GROSS133♥♣6+1-1
-4.7Round 7SHANGHAI YOUTH 555♠x♦Q-1-7
-5.2Round 5HAPPY BRIDGE135♦♣Q=-5
-5.8Round 3RIGHT CALL283N♠4=-5
-6.3Round 12CHINA KINGDOM214♥♣2=-8
-6.4Round 1XIAMEN14♥♣3+1+0
-6.8Round 1XIAMEN44♥x♠8-1-8
-6.9Round 3RIGHT CALL243N♣K+1-7
-7.0Round 14BEIJING BEI DI KE202♠♠3+2-10
-7.2Round 2GROSS193N♠6+1-7
-7.2Round 4YANAGISAWA45♦♣Q=+1
-7.5Round 1XIAMEN36♣♦A-1-13
-7.6Round 12CHINA KINGDOM284♠♠5-1-11
-14.5Round 4YANAGISAWA15♦x♥J-5-15