CHEN Zhizheng · SHANGHAI YOUTH 2

589rank
-44.4Butler · 118 bds
-0.38per board
±4.2swing
-0.92vs par /bd · #614/672
-0.33adjusted /bd
Butler per round: -0.5 -0.9 3.1 -0 12.1 2.5 -11.2 12.3 -17.8 -0.8 -22.1 -21.1by round

vs par split: bidding +0.64 · play -1.41

Strength of schedule: opponents averaged +0.04/bd (an average draw) → opponent-adjusted -0.33/bd

Card play — on target: opening leads 76.2% #479 of 671 · declarer play 57.9% #637 of 671 · defence 71.4% #648 of 672

Card play by contract type — on target
vs NTvs a suit
Opening leads·76.2% (21)
Declarer play·57.9% (19)
Defence·71.4% (42)

Opening leads by suit led: ♠ 75.0% (4) · ♥ 100.0% (3) · ♦ 71.4% (7) · ♣ 71.4% (7)

vs par by strain: a suit -0.77 (83)

vs par by level: part-score -0.05 (40) · game -1.53 (38) · slam -0.80 (5)

By role: declaring -0.03/bd (-2.46 vs par · 63) · defending -0.78/bd (+0.85 vs par · 55)

By vulnerability: vulnerable -0.54/bd (-1.05 vs par · 61) · not vulnerable -0.20/bd (-0.77 vs par · 57)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1X.ZhangM.Wei – Y.YaoClosed8-0.5-0.06+1.12
Round 2X.ZhangA.Hobart – B.BaranOpen10-0.9-0.09-3.50
Round 3H.LiuQ.Gong – Y.ChanOpen10+3.1+0.31-0.80
Round 5X.ZhangK.Mukherjee – A.GoelOpen10-0.0-0.00+0.80
Round 6Y.ChenT.Yongchareon – P.MaijarernClosed10+12.1+1.21+2.30
Round 7X.ZhangS.Bi – Y.WeiClosed10+2.5+0.25-1.10
Round 8X.ZhangW.Luo – J.TanClosed10-11.2-1.12-1.10
Round 9X.ZhangH.Lei – M.GaoClosed10+12.3+1.23+2.30
Round 10X.ZhangA.Djajanegara – T.SugiartoClosed10-17.8-1.78-0.80
Round 11X.ZhangL.Du – J.GaoClosed10-0.8-0.08-0.40
Round 12X.ZhangA.Suriya – C.SuriyaClosed10-22.1-2.21-3.60
Round 13X.ZhangA.Ruia – A.SequeiraOpen10-21.1-2.11-5.80

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
+9.7Round 3BEIJING-HONGKONG213N♣10=+10
+9.2Round 6THAILAND/CBLT303N♣6=+7
+9.2Round 7HUATIE HAIXING22♥x♦2=+8
+8.9Round 1SHANGHAI YOUTH 336N♣8-2+13
+8.2Round 9TRIJET274♠♦9=+7
+7.1Round 6THAILAND/CBLT252♦♥6-3+10
+6.8Round 11SUZHOU TAIHU166♠♣9-1+13
+6.6Round 9TRIJET254♥♠5-3+10
+6.5Round 3BEIJING-HONGKONG273N♠Q=+7
+6.3Round 3BEIJING-HONGKONG283N♠4+1+5
+5.7Round 5INDIA133N♠2+1+5
+5.3Round 6THAILAND/CBLT216♥♣A-1+11
+5.1Round 13INDIA RED65♣♥2=-11
+4.6Round 8GUANGDONG113N♦6+1+4
+4.2Round 12THAILAND/RBSC214♥♦6-1+4
+3.9Round 5INDIA171♠♦9+2+6
+3.7Round 9TRIJET213N♦J=+5
+3.6Round 11SUZHOU TAIHU143♦♣5+2+15
+3.3Round 1SHANGHAI YOUTH 383♣♦4-1+4
+3.2Round 2BARAN183♠♦4=+1
+3.2Round 11SUZHOU TAIHU182♠♥6=+5
+3.1Round 9TRIJET264♠♦10-1+6
+3.1Round 12THAILAND/RBSC274♥♣7+1-5
+2.5Round 8GUANGDONG182♠♦Q+1+1
+2.5Round 9TRIJET222♠♠2+2+6
+2.4Round 2BARAN154♥♠9+2+1
+2.4Round 9TRIJET303♠♠J+1+1
+2.4Round 10DJARUM BLACK71N♦7+3-8
+2.3Round 5INDIA184♠♣3-1+5
+2.3Round 10DJARUM BLACK83♠♦A=+6
+1.8Round 6THAILAND/CBLT243N♠K-1+5
+1.5Round 2BARAN131N♠3=+6
+1.5Round 13INDIA RED53N♠6+3-12
+1.3Round 12THAILAND/RBSC241N♥2+2+7
+1.2Round 11SUZHOU TAIHU132♥♣4=+1
+1.1Round 8GUANGDONG142♥♠3=+0
+1.0Round 5INDIA142♠♦9=+0
+1.0Round 10DJARUM BLACK42♠♦10-1+5
+0.9Round 7HUATIE HAIXING64♥♥J+1+0
+0.9Round 8GUANGDONG134♠♥A+2+7
+0.8Round 2BARAN122♠♣7-1-1
+0.8Round 7HUATIE HAIXING44♥♠9+1+0
+0.7Round 1SHANGHAI YOUTH 3104♥♠4+1+4
+0.7Round 7HUATIE HAIXING103♥♣Q=+0
+0.6Round 5INDIA204♠♣A=-1
+0.5Round 5INDIA114♥♠A-1-4
+0.3Round 10DJARUM BLACK54♠♦9+2+11
+0.2Round 6THAILAND/CBLT273N♦K-1+5
+0.2Round 12THAILAND/RBSC253N♦A+1-5
+0.1Round 7HUATIE HAIXING13N♣4+1+1
-0.0Round 6THAILAND/CBLT223♦♦2-2-5
-0.0Round 7HUATIE HAIXING31N♣K-2-9
+0.0Round 10DJARUM BLACK102♠♦A=+0
-0.3Round 3BEIJING-HONGKONG223N♥2=-5
-0.3Round 5INDIA193♠♠4-1+2
-0.3Round 10DJARUM BLACK32♥♦K+1+0
-0.3Round 13INDIA RED102♦♠Q+3-1
-0.5Round 12THAILAND/RBSC233N♠A-1-6
-0.6Round 1SHANGHAI YOUTH 324♠x♣Q-2+0
-0.7Round 2BARAN203N♠6+2-13
-0.7Round 5INDIA161N♦5+2+0
-0.8Round 7HUATIE HAIXING94♥♠8+2+11
-0.9Round 2BARAN193♦♦5+1+0
-0.9Round 6THAILAND/CBLT292♦♣7+1+0
-0.9Round 9TRIJET244♥♦4=+5
-0.9Round 11SUZHOU TAIHU203N♠7+2-13
-1.0Round 6THAILAND/CBLT283N♥10+3-1
-1.0Round 13INDIA RED94♠♠4+2-1
-1.1Round 2BARAN161N♠J=+1
-1.1Round 8GUANGDONG162♠♥A+1+0
-1.1Round 13INDIA RED33N♥7=-2
-1.2Round 1SHANGHAI YOUTH 313♦♠A+1-8
-1.2Round 11SUZHOU TAIHU194♠♣J+1-1
-1.3Round 11SUZHOU TAIHU172♠♣Q-1-4
-1.3Round 13INDIA RED74♥♦A+1+0
-1.4Round 1SHANGHAI YOUTH 395N♥10=+0
-1.4Round 2BARAN174♣♠J+1-8
-1.5Round 11SUZHOU TAIHU123♥♦A-3-10
-1.7Round 3BEIJING-HONGKONG252♠♦4-3-2
-1.8Round 7HUATIE HAIXING85♣x♦7-1-9
-1.9Round 2BARAN143N♠4+4-17
-1.9Round 7HUATIE HAIXING74♠♥3-1-6
-1.9Round 8GUANGDONG152N♣6+1+0
-1.9Round 9TRIJET292♠x♥K-1-3
-2.1Round 6THAILAND/CBLT233♥♣A+2-2
-2.2Round 3BEIJING-HONGKONG242♣♥10-1-3
-2.2Round 3BEIJING-HONGKONG293N♥K+2+0
-2.2Round 13INDIA RED14♠♠4+1-1
-2.3Round 3BEIJING-HONGKONG234♠♥K+1+0
-2.3Round 9TRIJET233♦♠A-2-2
-2.4Round 8GUANGDONG193♦♥K=-5
-2.5Round 12THAILAND/RBSC293♥♠Q=-1
-2.6Round 8GUANGDONG204♠♣7=+0
-2.6Round 11SUZHOU TAIHU113N♥2=+1
-2.8Round 2BARAN113N♥4-1-5
-3.0Round 10DJARUM BLACK12♣♦5-2-1
-3.1Round 12THAILAND/RBSC283♠♦K=-7
-3.4Round 8GUANGDONG123N♣10-2-6
-4.2Round 3BEIJING-HONGKONG264♠♦Q=-8
-4.3Round 1SHANGHAI YOUTH 363N♠9-2-5
-4.6Round 13INDIA RED44♠♣J+1+0
-4.7Round 7HUATIE HAIXING55♠x♦Q-1-7
-5.0Round 12THAILAND/RBSC225♦♥10-2-6
-5.2Round 10DJARUM BLACK94♥♠2=-8
-5.6Round 10DJARUM BLACK23♥x♥6-2-3
-5.9Round 1SHANGHAI YOUTH 374♥♠J=+1
-6.4Round 5INDIA156♦♦J=+2
-6.5Round 3BEIJING-HONGKONG303N♦5-1-12
-6.6Round 5INDIA123N♣2-4-7
-6.8Round 13INDIA RED86♠♠4-1-17
-7.5Round 6THAILAND/CBLT263♠♥9+1-7
-8.1Round 11SUZHOU TAIHU154♠♣A+1-11
-8.9Round 8GUANGDONG175♠♦Q-1-12
-8.9Round 12THAILAND/RBSC304♥♦A=-7
-9.1Round 9TRIJET285♠x♦J-1-12
-9.7Round 10DJARUM BLACK64♠♣A-1-10
-10.4Round 13INDIA RED26♥♣4-2-13
-10.9Round 12THAILAND/RBSC264♥♣A=-10