CHEN Chuan-Cheng · RIGHT CALL

227rank
+26.1Butler · 110 bds
+0.24per board
±4.1swing
+0.43vs par /bd · #172/672
+0.35adjusted /bd
Butler per round: -21.2 -5.7 -7.7 24.9 15.7 -7.9 15.5 3.9 6.8 -23.7 25.5by round

vs par split: bidding -0.15 · play -0.05

Strength of schedule: opponents averaged +0.11/bd (a tough draw) → opponent-adjusted +0.35/bd

Card play — on target: opening leads 66.7% #603 of 671 · declarer play 66.7% #558 of 671 · defence 97.1% #11 of 672

Card play by contract type — on target
vs NTvs a suit
Opening leads·66.7% (18)
Declarer play·66.7% (24)
Defence·97.1% (34)

Opening leads by suit led: ♠ 60.0% (5) · ♥ 100.0% (1) · ♦ 60.0% (5) · ♣ 71.4% (7)

vs par by strain: a suit -0.20 (75)

vs par by level: part-score -0.58 (36) · game -1.16 (31) · slam +5.25 (8)

By role: declaring -0.22/bd (-2.11 vs par · 56) · defending +0.71/bd (+3.06 vs par · 54)

By vulnerability: vulnerable +0.00/bd (-0.08 vs par · 60) · not vulnerable +0.52/bd (+1.04 vs par · 50)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2N.ShenX.Wang – S.SunClosed10-21.2-2.12+2.30
Round 3N.ShenL.Du – Z.YuClosed10-5.7-0.57-1.70
Round 7Y.ChengR.Lin – T.JiangClosed10-7.7-0.77-2.20
Round 8Y.ChengG.Wei – CHEN J DClosed10+24.9+2.49+3.20
Round 9Y.ChengX.Wang – H.XuClosed10+15.7+1.57+2.60
Round 10Y.ChengK.Lasocki – W.StobieckiClosed10-7.9-0.79-2.30
Round 11Y.ChengA.Zhi – D.HuClosed10+15.5+1.55+0.70
Round 12Y.ChengP.Fredin – B.FalleniusClosed10+3.9+0.39-0.70
Round 13Y.ChengZ.He – J.HuClosed10+6.8+0.68+3.50
Round 14Y.ChengD.Popova – R.GunevOpen10-23.7-2.37-4.30
Round 15Y.ChengB.He – L.ZouClosed10+25.5+2.55+3.60

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
+11.8Round 9HAI LV TEAM286♦♠A=+11
+10.3Round 8SHAN FENG154♥♠J=+10
+10.2Round 13JIANGSU33N♥2-1+11
+9.2Round 13JIANGSU24♥♠7-1+13
+6.9Round 3SUZHOU TAIHU243N♣K+1+7
+6.8Round 11YUNNAN DIKUANG166N♦9-1+13
+6.8Round 13JIANGSU86N♠7-1+17
+6.5Round 12MAHAFFEY243N♣4=+11
+5.9Round 15ANHUI214♠♦4=+7
+5.8Round 3SUZHOU TAIHU283N♠4=+5
+5.6Round 15ANHUI257♠♦6-2+17
+5.3Round 8SHAN FENG113N♥3-1+8
+5.2Round 9HAI LV TEAM213N♥6+2+6
+4.8Round 8SHAN FENG193N♦Q-2+7
+4.8Round 15ANHUI303N♠8+1-2
+4.6Round 11YUNNAN DIKUANG141♣♠4+2+15
+4.5Round 13JIANGSU66♣♠9-1+14
+4.3Round 15ANHUI273N♠9-2+6
+4.2Round 11YUNNAN DIKUANG183♥♠Q-3+6
+4.0Round 11YUNNAN DIKUANG113♦♦4+1+7
+4.0Round 15ANHUI243♣♦A-2+0
+3.4Round 8SHAN FENG123N♥10-2+6
+3.1Round 12MAHAFFEY274♥♦Q+1-5
+3.0Round 10POLISH SENIORS12♦♦6-2+1
+2.9Round 11YUNNAN DIKUANG154♠♥A-1-2
+2.8Round 2CHINA SMEG113N♥4-1+5
+2.8Round 12MAHAFFEY261N♦3+1+6
+2.6Round 8SHAN FENG204♠♥5=+0
+2.5Round 9HAI LV TEAM222♠♦6+2+6
+2.3Round 9HAI LV TEAM253N♠3-1+6
+2.1Round 14POPOVA183♥♦A+1+6
+1.6Round 2CHINA SMEG184♠♦7-1+4
+1.5Round 9HAI LV TEAM303♠♣K=+0
+1.4Round 2CHINA SMEG174♣♠J+1+8
+1.3Round 12MAHAFFEY304♥♦A-1+5
+1.2Round 10POLISH SENIORS31♠♠8+3+1
+1.2Round 13JIANGSU14♠♥Q=+0
+1.2Round 15ANHUI231N♥2-1+5
+1.1Round 8SHAN FENG162♠♥A+1+0
+1.0Round 7XINYUANKONGGU22♠♣2-1-1
+1.0Round 15ANHUI261N♠7-1-1
+1.0Round 15ANHUI294♠♣A=+0
+0.9Round 2CHINA SMEG193♦♣4+1+0
+0.9Round 7XINYUANKONGGU64♥♥6+1+0
+0.8Round 12MAHAFFEY223♣♥A+1+0
+0.7Round 8SHAN FENG142♠♥A-1+2
+0.6Round 14POPOVA134♠♣5+2-6
+0.5Round 14POPOVA171N♠4+1+0
+0.4Round 13JIANGSU74♥♠9=-1
+0.4Round 14POPOVA191N♠J=-5
+0.2Round 15ANHUI224♠♦8+1+5
+0.1Round 7XINYUANKONGGU14♥♦6=+1
-0.0Round 3SUZHOU TAIHU251N♥10=+0
-0.0Round 7XINYUANKONGGU31N♣A-2-9
-0.0Round 12MAHAFFEY212♦♥10+2-1
+0.0Round 13JIANGSU94♠♦5+1+0
-0.1Round 11YUNNAN DIKUANG203N♠4+3-13
-0.2Round 7XINYUANKONGGU43N♠9+1-1
-0.2Round 9HAI LV TEAM231N♥4+1+0
-0.2Round 11YUNNAN DIKUANG194♠♥8=+0
-0.3Round 3SUZHOU TAIHU212N♣9=-1
-0.3Round 3SUZHOU TAIHU223N♥2=-5
-0.3Round 7XINYUANKONGGU102♥♦K=-1
-0.3Round 10POLISH SENIORS54♠♦8+2-11
-0.6Round 10POLISH SENIORS71N♦3+1+9
-0.8Round 2CHINA SMEG122♥♥2=+1
-0.8Round 7XINYUANKONGGU94♥♠8+2+11
-0.8Round 12MAHAFFEY253N♥5+2-6
-0.9Round 8SHAN FENG134♠♠3+2-7
-0.9Round 8SHAN FENG181♠♣7=+1
-0.9Round 9HAI LV TEAM244♥♦4=+5
-1.0Round 10POLISH SENIORS42♣♦A=-5
-1.0Round 10POLISH SENIORS102♠♣6+1-1
-1.3Round 3SUZHOU TAIHU293N♥K+1+1
-1.3Round 10POLISH SENIORS82♠♣J=-5
-1.3Round 11YUNNAN DIKUANG172♠♣Q-1-4
-1.4Round 10POLISH SENIORS64♠♣A+1-1
-1.5Round 8SHAN FENG173N♥7+1+5
-1.5Round 12MAHAFFEY293♠♥Q-1+0
-1.6Round 2CHINA SMEG132♠♣5-1-6
-1.6Round 11YUNNAN DIKUANG122♠♣7+1-10
-1.6Round 14POPOVA123♠♠5-1+2
-1.7Round 2CHINA SMEG154♥♦K+1+0
-1.8Round 7XINYUANKONGGU86♦x♠2-1-9
-1.9Round 7XINYUANKONGGU74♠♥2-1-6
-1.9Round 9HAI LV TEAM273♥♦9-1-5
-1.9Round 9HAI LV TEAM293♠♣6-2-3
-2.1Round 10POLISH SENIORS24♦♥2+1-6
-2.3Round 3SUZHOU TAIHU234♠♦J+1+0
-2.4Round 14POPOVA113♥♣4-1+2
-2.5Round 15ANHUI281♠♦A=-1
-2.7Round 3SUZHOU TAIHU273N♥7-1-5
-2.7Round 9HAI LV TEAM262N♠J+1+0
-2.7Round 14POPOVA144♠♥3+1-14
-3.3Round 12MAHAFFEY236♦♠A-2-8
-3.7Round 3SUZHOU TAIHU265♣♦A=-7
-3.8Round 11YUNNAN DIKUANG132♥♠2-1-5
-3.8Round 14POPOVA153♣♠K-3-6
-4.4Round 10POLISH SENIORS95♦♣10-2-5
-4.7Round 7XINYUANKONGGU55♠x♦Q-1-7
-4.8Round 13JIANGSU103N♥K-1-6
-5.0Round 12MAHAFFEY284♦♣9-1-9
-5.1Round 2CHINA SMEG163N♠J-3-6
-7.0Round 14POPOVA202♠♠7+2-10
-7.1Round 2CHINA SMEG146♦♣4+1+15
-7.8Round 3SUZHOU TAIHU303N♦5-2-12
-9.6Round 13JIANGSU44♠♦7-2-13
-9.8Round 14POPOVA164♠♣6-1-12
-11.1Round 13JIANGSU56♦♠8=+0
-11.6Round 2CHINA SMEG206♣♦5=+2