CHAI Junyang · COFCO YALONG BAY

43rank
+26.0Butler · 35 bds
+0.74per board
±5.7swing
+1.26vs par /bd · #28/208
+0.48adjusted /bd
Butler per round: -12.5 3 -0.1 11 24.6by round

vs par split: bidding +1.49 · play -0.23

Strength of schedule: opponents averaged -0.27/bd (an easy draw) → opponent-adjusted +0.48/bd

Card play — on target: opening leads 91.7% #15 of 207 · declarer play 71.4% #129 of 206 · defence 84.2% #109 of 208

Card play by contract type — on target
vs NTvs a suit
Opening leads75.0% (4)100.0% (8)
Declarer play·71.4% (7)
Defence83.3% (6)84.6% (13)

Opening leads by suit led: ♠ 100.0% (5) · ♥ 0.0% (1) · ♦ 100.0% (4) · ♣ 100.0% (2)

vs par by strain: NT +4.43 (7) · a suit +0.46 (28)

vs par by level: part-score -4.78 (9) · game +2.54 (24) · slam +13.00 (2)

By role: declaring -0.61/bd (-2.69 vs par · 16) · defending +1.88/bd (+4.58 vs par · 19)

By vulnerability: vulnerable +0.09/bd (-0.23 vs par · 17) · not vulnerable +1.36/bd (+2.67 vs par · 18)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2Y.ZhaoX.Chen – J.LiClosed7-12.5-1.79-0.71
Round 3Y.ZhaoY.Wu – Z.ZhenClosed7+3.0+0.43+3.43
Round 5Y.ZhaoW.Yang – H.QinClosed7-0.1-0.01-3.71
Round 6Y.ZhaoY.Gu – R.ShaoClosed7+11.0+1.57+2.57
Round 8Y.ZhaoJ.Yao – L.LeiClosed7+24.6+3.51+4.71

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
+14.0Round 6SHANGHAI THINK BRIDGE CLUB116♦x♠3-4+15
+14.0Round 6SHANGHAI THINK BRIDGE CLUB134♠x♥A+1+13
+7.8Round 8CHINA PETROLEUM SPORTS ASSCCIA264♠♥Q-1+12
+6.8Round 8CHINA PETROLEUM SPORTS ASSCCIA245♥♠Q-2+11
+6.6Round 8CHINA PETROLEUM SPORTS ASSCCIA256NT♠9-1+11
+5.8Round 5TIANYA BRIDGE FATE15♥x♦A-3+2
+5.7Round 3TIANJIN CONTRACT BRIDGE ASSOCI174♥♦2-2+6
+5.0Round 5TIANYA BRIDGE FATE74♠♦K+1-13
+4.9Round 5TIANYA BRIDGE FATE23♣♠5-1+6
+3.9Round 3TIANJIN CONTRACT BRIDGE ASSOCI154♠♦Q-1+6
+3.9Round 3TIANJIN CONTRACT BRIDGE ASSOCI183NT♣10-1+13
+3.2Round 6SHANGHAI THINK BRIDGE CLUB93NT♥5=+14
+2.4Round 2GSRC & S UNITED104♠♦7+1+0
+2.4Round 8CHINA PETROLEUM SPORTS ASSCCIA274♠♦2=+0
+2.2Round 2GSRC & S UNITED134♠♣J+1+0
+1.5Round 3TIANJIN CONTRACT BRIDGE ASSOCI214♥♦10+1+0
+1.4Round 8CHINA PETROLEUM SPORTS ASSCCIA283♥♣Q=+0
+0.8Round 6SHANGHAI THINK BRIDGE CLUB144♥♥A-1+3
+0.5Round 8CHINA PETROLEUM SPORTS ASSCCIA233NT♠10+1-1
-0.4Round 2GSRC & S UNITED144♠♣J+3+14
-0.6Round 5TIANYA BRIDGE FATE33♥♠4-2-1
-0.7Round 3TIANJIN CONTRACT BRIDGE ASSOCI203NT♦Q+2+0
-0.9Round 8CHINA PETROLEUM SPORTS ASSCCIA224♥♥2+1+0
-1.4Round 2GSRC & S UNITED114♥♦A=+1
-1.7Round 5TIANYA BRIDGE FATE52♠♦4=-1
-1.8Round 3TIANJIN CONTRACT BRIDGE ASSOCI193NT♣4=+0
-4.1Round 2GSRC & S UNITED123♥♥6=-7
-5.4Round 5TIANYA BRIDGE FATE64♥♦K-1-9
-5.5Round 2GSRC & S UNITED92♥x♣10-2-9
-5.7Round 2GSRC & S UNITED85♦♠J-1-4
-6.1Round 6SHANGHAI THINK BRIDGE CLUB122♠♣4-2-11
-7.2Round 6SHANGHAI THINK BRIDGE CLUB83NT♥10=-6
-7.7Round 6SHANGHAI THINK BRIDGE CLUB102♠♣5+2-10
-8.1Round 5TIANYA BRIDGE FATE42♠♥7+3-10
-9.5Round 3TIANJIN CONTRACT BRIDGE ASSOCI164♥♠4+1-1