LIU Shitong · DONGFENG FENGSHEN

303rank
+2.6Butler · 110 bds
+0.02per board
±4.2swing
+0.08vs par /bd · #261/567
+0.16adjusted /bd
Butler per round: -2.4 -1.6 -6.5 2.1 0.7 -14.3 12.8 12.2 2.8 9.6 -12.8by round

vs par split: bidding -0.02 · play +0.13

Strength of schedule: opponents averaged +0.14/bd (a tough draw) → opponent-adjusted +0.16/bd

Card play — on target: opening leads 78.6% #336 of 567 · declarer play 81.5% #180 of 567 · defence 85.2% #191 of 567

Card play by contract type — on target
vs NTvs a suit
Opening leads60.0% (5)82.6% (23)
Declarer play100.0% (3)79.2% (24)
Defence68.8% (16)92.1% (38)

Opening leads by suit led: ♠ 50.0% (4) · ♥ 80.0% (10) · ♦ 88.9% (9) · ♣ 80.0% (5)

vs par by strain: NT -1.25 (28) · a suit +0.58 (81)

vs par by level: part-score -0.13 (53) · game +0.20 (51) · slam +1.80 (5)

By role: declaring +0.19/bd (-1.89 vs par · 55) · defending -0.14/bd (+2.06 vs par · 55)

By vulnerability: vulnerable +0.20/bd (+0.66 vs par · 56) · not vulnerable -0.16/bd (-0.52 vs par · 54)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1X.ChenZ.Shao – Y.ShenClosed10-2.4-0.24-0.90
Round 3X.ChenC.Bernstein – S.WheelerClosed10-1.6-0.16-1.60
Round 4X.ChenC.Sun – Y.LiuOpen10-6.5-0.65-0.60
Round 6X.ChenY.Zhao – X.LiOpen10+2.1+0.21-1.20
Round 7X.ChenM.Kirr – J.CarruthersOpen10+0.7+0.07-2.90
Round 9X.ChenI.Liran – E.FriedlanderOpen10-14.3-1.43+2.50
Round 10X.ChenJ.Zhou – X.WeiClosed10+12.8+1.28+3.70
Round 11X.ChenA.Comella – S.SabbatiniOpen10+12.2+1.22+1.80
Round 12X.ChenG.Xin – H.JiangOpen10+2.8+0.28+0.00
Round 14X.ChenX.Lin – Z.YouClosed10+9.6+0.96-0.70
Round 15X.ChenX.Hou – Z.FuClosed10-12.8-1.28+0.80

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
+10.2Round 3LEWIS254♥♦K=+12
+9.5Round 10CHENGDUGUOLI63NT♣7=+10
+9.3Round 7CANADA Seniors86♣♦Q=+0
+9.2Round 14CANADA CHINA UNITED124♠♣K-1+10
+7.9Round 12SAN CHEN FUND254♥♣K+2+14
+7.8Round 4WUHAN44♥♠J-2+13
+7.1Round 10CHENGDUGUOLI24♥♦A-3+8
+6.9Round 15PD TIMES223NT♣6-1+12
+6.6Round 11ITALY Seniors115♣x♦A-3+9
+6.5Round 6PIONEERS296♠♦J=+0
+5.8Round 14CANADA CHINA UNITED172♠♦6+1+7
+5.6Round 14CANADA CHINA UNITED154♠♥6-1-2
+4.7Round 10CHENGDUGUOLI35♣♥A-1+10
+4.5Round 1SHEN22♥♣K=+6
+4.2Round 7CANADA Seniors93NT♠2=-13
+4.1Round 6PIONEERS284♠♦6-1+6
+4.0Round 11ITALY Seniors193NT♥8=+0
+3.7Round 10CHENGDUGUOLI42♠♥5=+6
+3.3Round 9YBT305♠♦2-2+11
+3.2Round 9YBT223NT♣9-1+5
+3.1Round 1SHEN84♠♦5-1+10
+3.1Round 7CANADA Seniors104♦♠J=+0
+3.0Round 11ITALY Seniors143♦♣2-1+2
+2.9Round 1SHEN53♣♣4+1+7
+2.8Round 3LEWIS231NT♣2=-1
+2.7Round 14CANADA CHINA UNITED184♥♦5=+3
+2.5Round 10CHENGDUGUOLI53♥♣K=+6
+2.5Round 11ITALY Seniors153♠♦K+1+10
+2.5Round 15PD TIMES284♠♥6+2+11
+2.3Round 1SHEN33♥♦3+1+1
+2.2Round 12SAN CHEN FUND263♦♦6-2+2
+2.1Round 12SAN CHEN FUND303♦♦A-2-1
+2.0Round 6PIONEERS275♠♥A-1+8
+1.9Round 12SAN CHEN FUND211NT♠7-2+3
+1.9Round 14CANADA CHINA UNITED113NT♣5=-1
+1.8Round 6PIONEERS242♦♣6+2+1
+1.8Round 10CHENGDUGUOLI13♦x♦2-1+5
+1.6Round 15PD TIMES213♠♥A-2-1
+1.4Round 10CHENGDUGUOLI9Pass-3
+1.4Round 11ITALY Seniors123NT♠10+1+0
+1.3Round 12SAN CHEN FUND285♥♠7+1-11
+1.3Round 15PD TIMES263♥♣A-2+10
+1.2Round 11ITALY Seniors172♥♠2-1+8
+1.0Round 1SHEN42♠♣9=+1
+1.0Round 12SAN CHEN FUND292♠♣7=+1
+0.8Round 7CANADA Seniors53♣♦10=+0
+0.7Round 9YBT254♥♠3+3+10
+0.6Round 6PIONEERS232♠♣6=-1
+0.6Round 9YBT273♠♥A+1-6
+0.5Round 11ITALY Seniors201NT♠2-1+0
+0.3Round 3LEWIS304♥♠A+1+0
+0.3Round 12SAN CHEN FUND232♥♥9+1+0
+0.2Round 7CANADA Seniors13♥♥9-1-2
+0.2Round 15PD TIMES243NT♠5+2+0
+0.1Round 3LEWIS223NT♥10-1+5
-0.2Round 11ITALY Seniors182♠♣2=+0
-0.3Round 3LEWIS245♦♥8=-2
-0.3Round 4WUHAN14♥♠K+1+0
-0.3Round 7CANADA Seniors71NT♦7-1+0
-0.4Round 4WUHAN54♠♥K+1-1
-0.4Round 4WUHAN91♠♠6+1+5
-0.5Round 9YBT263NT♦2+2+12
-0.5Round 15PD TIMES253NT♣4=-1
-0.6Round 1SHEN12♠♣2+2-6
-0.6Round 4WUHAN34♥♠K+2-11
-0.6Round 6PIONEERS302♥♣K+1-6
-0.7Round 4WUHAN73♠♣7=+0
-0.8Round 4WUHAN62♠♠K=+0
-0.9Round 6PIONEERS222♥♦Q+1+0
-0.9Round 7CANADA Seniors22♠♣K-1+1
-1.1Round 3LEWIS264♠♠K+2-13
-1.2Round 1SHEN71NT♥6+2-1
-1.2Round 7CANADA Seniors31NT♥9+1+0
-1.2Round 9YBT283♥♣2-1-4
-1.4Round 14CANADA CHINA UNITED141NT♠4+1+0
-1.5Round 14CANADA CHINA UNITED164♠♥A-1-5
-1.6Round 9YBT292♠♦9+2+1
-2.0Round 6PIONEERS261NT♠2+3-2
-2.2Round 11ITALY Seniors163♥♣6+1-1
-2.3Round 1SHEN63NT♦9-1-10
-2.4Round 12SAN CHEN FUND226♣♦A=+2
-2.7Round 3LEWIS274♥♠2=-3
-2.9Round 3LEWIS282♥♠Q+3-6
-3.0Round 3LEWIS212♥♣8+2-7
-3.1Round 10CHENGDUGUOLI73NT♦2=+0
-3.2Round 1SHEN95♦♥6-2-7
-3.2Round 4WUHAN82♠♠7+1-1
-3.3Round 7CANADA Seniors45♦♠3+1-3
-3.4Round 14CANADA CHINA UNITED131NT♥6=-5
-3.5Round 9YBT242♠♥10-2+0
-3.6Round 4WUHAN25♥♦A=-6
-3.7Round 10CHENGDUGUOLI103♠♦2-1-5
-3.8Round 14CANADA CHINA UNITED203♥♥6=-7
-3.9Round 6PIONEERS213NTx♥J-2-9
-4.1Round 15PD TIMES232♠♥6-1-5
-4.3Round 4WUHAN103♣♠K-1-5
-4.6Round 11ITALY Seniors133NT♠4=-10
-5.0Round 3LEWIS295♥♠K-1-1
-5.5Round 6PIONEERS253NT♠5-3-9
-5.5Round 14CANADA CHINA UNITED192♠♥6-4-7
-5.6Round 12SAN CHEN FUND273NT♣7-1-10
-5.9Round 12SAN CHEN FUND244♠♣K+1+0
-6.5Round 15PD TIMES274♥♦K=-8
-7.1Round 9YBT215♥x♠J-1-11
-7.1Round 15PD TIMES294♥♣6+1-4
-7.1Round 15PD TIMES305♣♥6=-6
-8.2Round 9YBT236♦♥9+1+7
-8.9Round 1SHEN101NTx♥4+2-10
-11.1Round 10CHENGDUGUOLI87NT♦4=+0
-11.2Round 7CANADA Seniors64♥x♦6-4-12