DONG Liu Xiang · BLUEMAROON

236rank
+15.2Butler · 70 bds
+0.22per board
±4.8swing
-0.19vs par /bd · #407/672
-0.04adjusted /bd
Butler per round: -4.4 -29.6 -0.9 8.7 10.2 6.9 24.3by round

vs par split: bidding +0.37 · play -0.49

Strength of schedule: opponents averaged -0.26/bd (an easy draw) → opponent-adjusted -0.04/bd

Card play — on target: opening leads 88.9% #132 of 671 · declarer play 81.8% #232 of 671 · defence 86.2% #297 of 672

Card play by contract type — on target
vs NTvs a suit
Opening leads·88.9% (18)
Declarer play·81.8% (11)
Defence·86.2% (29)

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

vs par by strain: a suit -0.12 (51)

vs par by level: part-score +0.67 (24) · game +0.46 (22) · slam -6.40 (5)

By role: declaring +0.00/bd (-2.58 vs par · 31) · defending +0.39/bd (+1.72 vs par · 39)

By vulnerability: vulnerable -0.45/bd (-1.34 vs par · 38) · not vulnerable +1.01/bd (+1.19 vs par · 32)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1Y.ZhaoA.Jezioro – J.RussyanOpen10-4.4-0.44-2.00
Round 3Y.ZhaoM.Ghanem – S.BarakatOpen10-29.6-2.96-1.30
Round 9L.LinC.Yu – J.LvOpen10-0.9-0.09-0.30
Round 10Y.ZhaoT.Yongchareon – P.MaijarernClosed10+8.7+0.87+2.90
Round 11Y.ZhaoY.Du – S.ShanOpen10+10.2+1.02+0.40
Round 12Y.ZhaoV.Cornell – M.CornellClosed10+6.9+0.69+0.00
Round 13Y.ZhaoQ.Li – W.GuanOpen10+24.3+2.43-1.00

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
+11.1Round 13TIANJIN56♦♠8=+0
+9.0Round 9NINGBOYONGGUAN253N♦5=+10
+8.8Round 13TIANJIN16♠♦3-1+10
+8.3Round 13TIANJIN72♥♠8+3+10
+7.8Round 1POLISH SENIORS25♦♠10-1+9
+7.4Round 10THAILAND/CBLT95♥♠9-1+9
+7.1Round 9NINGBOYONGGUAN224♠♣5=+5
+6.9Round 12STERN264♥♥2-3+10
+6.7Round 10THAILAND/CBLT22♣♣4=+10
+6.6Round 12STERN284♠♦K=+5
+6.5Round 12STERN243N♣8=+11
+5.5Round 13TIANJIN63N♥6+1-11
+4.8Round 13TIANJIN105♦♦8-1+6
+4.3Round 1POLISH SENIORS63♦♥K-2+5
+3.6Round 11WEIYU JUNIOR MIDDLE SCHOOL143♦♥K+2+15
+2.9Round 11WEIYU JUNIOR MIDDLE SCHOOL154♠♣A-1-2
+2.7Round 3PETRA273N♠J-1+5
+2.4Round 11WEIYU JUNIOR MIDDLE SCHOOL172♠♣Q=+0
+2.2Round 3PETRA242♣♥10-1+3
+2.2Round 11WEIYU JUNIOR MIDDLE SCHOOL132♥♠5+1+2
+2.1Round 11WEIYU JUNIOR MIDDLE SCHOOL111♦♣K-4+6
+2.1Round 11WEIYU JUNIOR MIDDLE SCHOOL122♥x♦K-2-8
+1.8Round 13TIANJIN33N♥7+3+1
+1.7Round 3PETRA252♣♦K-3+2
+1.6Round 11WEIYU JUNIOR MIDDLE SCHOOL184♣♠K-1+4
+1.4Round 1POLISH SENIORS93N♥9+2+0
+1.4Round 10THAILAND/CBLT64♠♣A+1+1
+1.3Round 12STERN304♥♦K-1+5
+1.2Round 12STERN253N♣2=-5
+1.1Round 1POLISH SENIORS82N♦7-3+1
+1.0Round 10THAILAND/CBLT42♠♦8-1+5
+0.9Round 9NINGBOYONGGUAN244♥♦6=-5
+0.9Round 10THAILAND/CBLT12♣♠4-1+4
+0.8Round 12STERN224♣♥K=+0
+0.6Round 1POLISH SENIORS13♦♣K+2+7
+0.3Round 3PETRA212N♣9=+1
+0.3Round 10THAILAND/CBLT54♠♥4+2+11
+0.2Round 9NINGBOYONGGUAN231N♠7+1+0
+0.0Round 10THAILAND/CBLT102♠♣5=+0
-0.0Round 13TIANJIN94♠♥2+1+0
-0.2Round 11WEIYU JUNIOR MIDDLE SCHOOL194♠♥K=+0
-0.3Round 10THAILAND/CBLT33♥♣A=+0
-0.5Round 12STERN233N♠6-1-6
-0.6Round 9NINGBOYONGGUAN284N♠K=+5
-0.7Round 1POLISH SENIORS104♥♠3+1-4
-0.9Round 1POLISH SENIORS34♠x♣K-2-8
-1.5Round 9NINGBOYONGGUAN303♠♣K=+0
-1.5Round 12STERN294♠♥Q-1+0
-1.7Round 3PETRA223N♠6+2+4
-1.8Round 1POLISH SENIORS54♠♠3-1-5
-1.8Round 11WEIYU JUNIOR MIDDLE SCHOOL203N♦8+1-13
-2.6Round 9NINGBOYONGGUAN272♠♥7+1+0
-2.7Round 1POLISH SENIORS73♣♦3+1-11
-3.1Round 9NINGBOYONGGUAN264♠♠5-1-6
-3.3Round 3PETRA303N♦3=+6
-3.6Round 13TIANJIN44♠♠J=+1
-3.9Round 10THAILAND/CBLT83N♦10-2+0
-4.7Round 11WEIYU JUNIOR MIDDLE SCHOOL165♠♣9=+0
-4.8Round 10THAILAND/CBLT72♦♠K=-11
-5.1Round 9NINGBOYONGGUAN292♠♥K=-6
-5.2Round 9NINGBOYONGGUAN213N♣4+2-6
-5.6Round 13TIANJIN22♥♥3+2-10
-5.9Round 3PETRA263N♥J-1-5
-6.3Round 3PETRA283N♠4+1-5
-6.8Round 13TIANJIN86♠♠3-1-17
-7.0Round 12STERN214♥♦6+1-8
-7.4Round 12STERN276♥♠A-1-12
-8.7Round 3PETRA234♣♥2+1-11
-10.6Round 3PETRA296♦♠5-1-13
-13.5Round 1POLISH SENIORS44♥x♠A-3-14