CHEN Zhong Rong · XIAMEN

627rank
-62.5Butler · 140 bds
-0.45per board
±4.5swing
+0.17vs par /bd · #259/672
-0.44adjusted /bd
Butler per round: -0.8 16.6 -25.5 1.9 17.7 -6 4.6 -3.6 16.2 -14.9 -14.9 -18.8 -35by round

vs par split: bidding -0.12 · play -0.50

Strength of schedule: opponents averaged +0.01/bd (an average draw) → opponent-adjusted -0.44/bd

Card play — on target: opening leads 81.8% #351 of 671 · declarer play 64.3% #592 of 671 · defence 85.1% #339 of 672

Card play by contract type — on target
vs NTvs a suit
Opening leads·81.8% (22)
Declarer play·64.3% (28)
Defence·85.1% (47)

Opening leads by suit led: ♠ 75.0% (4) · ♥ 66.7% (6) · ♦ 80.0% (5) · ♣ 100.0% (7)

vs par by strain: a suit -0.62 (94)

vs par by level: part-score -0.24 (42) · game -0.32 (44) · slam -4.25 (8)

By role: declaring +0.07/bd (-2.19 vs par · 62) · defending -0.85/bd (+2.05 vs par · 78)

By vulnerability: vulnerable -0.33/bd (+0.32 vs par · 75) · not vulnerable -0.58/bd (+0.00 vs par · 65)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1J.LinJ.Gao – W.ZhangClosed10-0.8-0.08-1.30
Round 2J.LinM.Rossard – J.RomanowskiClosed10+16.6+1.66+5.40
Round 3Z.ChenY.Gong – W.ZhangOpen10-25.5-2.55-1.10
Round 4Z.ChenE.Wold – M.PassellClosed10+1.9+0.19-0.10
Round 5J.LinG.Wang – J.HuClosed10+17.7+1.77+1.20
Round 6J.LinQ.Zhou – J.QianClosed10-6.0-0.60+0.50
Round 7J.LinA.Ruia – A.SequeiraOpen10+4.6+0.46+1.60
Round 8J.LinX.Xue – Y.DengOpen10-3.6-0.36+0.10
Round 9J.LinD.Stern – R.KrochmalikOpen10+16.2+1.62+2.40
Round 10J.LinX.Wang – H.XuClosed10-14.9-1.49-0.20
Round 11J.LinR.Zhang – CHEN M. Z.Open10-14.9-1.49-1.40
Round 12J.LinI.Petrovic – M.PilipovicClosed10-18.8-1.88-2.70
Round 13J.LinZ.Gu – Y.WangOpen10-9.9-0.99-4.10

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
+11.4Round 5XINJIANG205♠♣A-1+13
+10.3Round 9STERN292♣♣9-4+11
+8.1Round 5XINJIANG133N♠7-2+12
+8.1Round 7INDIA RED56♠x♦Q-2+11
+8.1Round 11ZHANG154♠♠4+1+11
+7.8Round 1SUZHOU TAIHU23N♣6-1+9
+7.4Round 4O'ROURKE44♠♣Q=+0
+6.9Round 2ROSSARSKI193N♠6=+7
+6.8Round 9STERN213Nx♣8=+8
+6.7Round 4O'ROURKE64♠♣10-1+13
+6.4Round 5XINJIANG156♦♠J=-2
+4.9Round 7INDIA RED22N♠10-3+7
+4.8Round 5XINJIANG171Nx♠4=+2
+4.7Round 11ZHANG164♠♣9+1+0
+4.4Round 12SVER293♠♥Q=+6
+4.3Round 1SUZHOU TAIHU82♠x♥A-2+5
+4.1Round 13PUDONGPUFA CLUB24♥♣2+1+0
+3.8Round 2ROSSARSKI132♠♣6+1+0
+3.5Round 11ZHANG143N♠4+2-14
+3.2Round 8BEIJING ZHU YE193♦♥K+1+6
+3.1Round 1SUZHOU TAIHU52♠♠2+1+0
+3.1Round 8BEIJING ZHU YE142♥♦A-1+4
+2.9Round 6JIANGSU264♠♥Q+2+6
+2.9Round 8BEIJING ZHU YE162♥♣K-2+2
+2.8Round 2ROSSARSKI122♣♥8-1+5
+2.8Round 12SVER261N♦3+1+6
+2.7Round 3YUNNAN DIKUANG273N♠4-1+5
+2.6Round 8BEIJING ZHU YE204♠♥K=+0
+2.6Round 9STERN272♠♦9+1+0
+2.5Round 9STERN222♠♠10+2+6
+2.4Round 10HAI LV TEAM11N♠9-2+5
+2.3Round 1SUZHOU TAIHU93N♥10+3+1
+2.3Round 3YUNNAN DIKUANG234♠♥9+1+0
+2.3Round 9STERN253N♠6-1+6
+2.3Round 10HAI LV TEAM82♠♣J+1+6
+2.2Round 3YUNNAN DIKUANG293N♠4+2+0
+2.2Round 4O'ROURKE15♣♥K-2+5
+1.9Round 2ROSSARSKI143N♣3+4+17
+1.9Round 7INDIA RED74♠♥3-1+6
+1.8Round 6JIANGSU243N♠K-1+5
+1.6Round 2ROSSARSKI184♠♦5-1+4
+1.5Round 13PUDONGPUFA CLUB53N♥5+3-12
+1.4Round 2ROSSARSKI173♣♠J+2+8
+1.4Round 10HAI LV TEAM64♠♠8+1+1
+1.3Round 11ZHANG172N♣4-1+4
+1.3Round 12SVER304♥♦K-1+5
+1.2Round 10HAI LV TEAM54♠♥7+1+11
+1.1Round 2ROSSARSKI161N♠J=-1
+1.1Round 13PUDONGPUFA CLUB102♣♥K=+1
+1.0Round 10HAI LV TEAM42♠♥2-1+5
+1.0Round 10HAI LV TEAM102♠♣5+1+1
+0.9Round 8BEIJING ZHU YE152♠♥3=-1
+0.8Round 1SUZHOU TAIHU13♥♣3=+8
+0.8Round 13PUDONGPUFA CLUB33N♥7+2+0
+0.7Round 5XINJIANG143♣♠Q-1+2
+0.6Round 6JIANGSU232♥♦4=+1
+0.6Round 9STERN283N♥K+1-5
+0.2Round 1SUZHOU TAIHU103N♠Q+1-4
+0.2Round 6JIANGSU274♥♦K-1+5
+0.2Round 7INDIA RED44♥♠3=+1
+0.2Round 11ZHANG194♠♥K=+0
-0.0Round 6JIANGSU283N♥9+2+0
+0.0Round 7INDIA RED31N♣A-2+9
-0.0Round 13PUDONGPUFA CLUB94♠♠5+1+0
-0.1Round 7INDIA RED14♥♦7=-1
-0.1Round 7INDIA RED94♥♣6+1-11
-0.2Round 2ROSSARSKI203N♠6+3+13
-0.3Round 5XINJIANG161N♠6+1-1
-0.5Round 12SVER235♦♠8-1-6
-0.6Round 4O'ROURKE71N♥2+1+1
-0.7Round 1SUZHOU TAIHU61N♠4=+0
-0.7Round 7INDIA RED102♥♣Q+1+0
-0.8Round 4O'ROURKE10Pass-3
-0.8Round 12SVER253N♦K+2-6
-0.9Round 4O'ROURKE23N♣2+2-1
-0.9Round 7INDIA RED64♥♥6+1+0
-0.9Round 8BEIJING ZHU YE134♠♠2+2-7
-0.9Round 9STERN244♥♥10=+5
-1.0Round 2ROSSARSKI111N♥4=+1
-1.0Round 3YUNNAN DIKUANG252♠♦5-1-1
-1.0Round 6JIANGSU221♠♦A+2-6
-1.0Round 8BEIJING ZHU YE181N♠5=+1
-1.2Round 11ZHANG132♥♣4=-1
-1.2Round 13PUDONGPUFA CLUB14♠♣4=+0
-1.3Round 4O'ROURKE92♥♣8-1-4
-1.3Round 13PUDONGPUFA CLUB74♥♦A+1+0
-1.4Round 6JIANGSU292♦♦7=-1
-1.7Round 2ROSSARSKI154♥♣6+1+0
-1.7Round 3YUNNAN DIKUANG223N♥5+2+4
-2.1Round 6JIANGSU303N♥2-2-6
-2.3Round 5XINJIANG184♠♣3-1-5
-2.3Round 6JIANGSU253♦x♥A-1+1
-2.3Round 9STERN232♦♦2-2-2
-2.5Round 8BEIJING ZHU YE173N♦Q+2+5
-2.6Round 12SVER282♠♦K+2-7
-2.7Round 9STERN262N♠J+1+0
-2.8Round 4O'ROURKE52♠♦4-1-5
-2.9Round 5XINJIANG113♠♦A-1+2
-3.0Round 9STERN304♠♥Q-1-5
-3.3Round 3YUNNAN DIKUANG303N♥7=+6
-3.3Round 4O'ROURKE33N♥9+3-1
-3.5Round 10HAI LV TEAM25♦♥A=+0
-3.6Round 12SVER223♦♥7-1-5
-3.6Round 13PUDONGPUFA CLUB43N♠J+1+1
-3.9Round 8BEIJING ZHU YE115♣♥A=-3
-4.0Round 5XINJIANG122♥♣J-1-5
-4.1Round 11ZHANG183♠♣A=-6
-4.2Round 5XINJIANG192♠♥3+1-6
-4.5Round 3YUNNAN DIKUANG263♠♦Q+1-4
-4.5Round 13PUDONGPUFA CLUB66♣♦4-1-14
-4.6Round 1SUZHOU TAIHU42♠♦Q=-6
-4.7Round 4O'ROURKE83♦♣Q=-6
-4.7Round 6JIANGSU214♥♣A+1+0
-4.9Round 10HAI LV TEAM73♠♥K-1-12
-5.2Round 10HAI LV TEAM94♥♣9=-8
-5.4Round 12SVER242♠♦4+1+0
-6.2Round 3YUNNAN DIKUANG243N♣9=-6
-6.3Round 3YUNNAN DIKUANG284♥♦7=-5
-6.5Round 1SUZHOU TAIHU74♥♣4-1-13
-6.8Round 13PUDONGPUFA CLUB86♠♠3-1-17
-7.0Round 12SVER214♥♦6+1-8
-7.4Round 12SVER276♥♠A-1-12
-7.5Round 1SUZHOU TAIHU36♣♦A-1-13
-8.0Round 8BEIJING ZHU YE123N♦3=-6
-8.0Round 11ZHANG123N♥2=+1
-8.2Round 11ZHANG111♠♥8=-11
-8.7Round 7INDIA RED85♦x♠J=-6
-9.7Round 3YUNNAN DIKUANG213N♣9=-10
-10.6Round 10HAI LV TEAM34♥♣6+1-11
-11.2Round 11ZHANG206♣♠4=+2