LIU Song · ZHONGSHAN JIEGAO

144rank
+42.9Butler · 120 bds
+0.36per board
±4.0swing
-0.08vs par /bd · #310/567
+0.65adjusted /bd
Butler per round: 21.6 8.9 13.4 6.9 -13.8 11 3.1 5.1 8.3 1.8 -14.5 -8.9by round

vs par split: bidding -0.54 · play +0.45

Strength of schedule: opponents averaged +0.29/bd (a tough draw) → opponent-adjusted +0.65/bd

Card play — on target: opening leads 75.0% #432 of 567 · declarer play 91.4% #23 of 567 · defence 85.2% #189 of 567

Card play by contract type — on target
vs NTvs a suit
Opening leads75.0% (12)75.0% (28)
Declarer play87.5% (8)92.6% (27)
Defence81.2% (16)86.7% (45)

Opening leads by suit led: ♠ 62.5% (8) · ♥ 84.6% (13) · ♦ 78.6% (14) · ♣ 60.0% (5)

vs par by strain: NT -0.53 (34) · a suit +0.09 (86)

vs par by level: part-score -0.33 (54) · game +0.30 (64) · slam -5.50 (2)

By role: declaring +0.16/bd (-2.28 vs par · 58) · defending +0.54/bd (+1.97 vs par · 62)

By vulnerability: vulnerable +0.69/bd (+0.70 vs par · 60) · not vulnerable +0.03/bd (-0.87 vs par · 60)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1W.HeC.Zhang – S.CaoOpen10+21.6+2.16+1.80
Round 3W.HeC.Mcavoy – J.McavoyOpen10+8.9+0.89+1.80
Round 4W.HeW.Gawel – R.JagniewskiClosed10+13.4+1.34+1.80
Round 5W.HeA.Levin – J.RollClosed10+6.9+0.69+0.30
Round 6W.HeY.Khiuppenen – V.KholomeevOpen10-13.8-1.38+0.10
Round 8W.HeW.Wang – X.HaoOpen10+11.0+1.10+1.10
Round 9W.HeJ.Zhao – Y.ZhangOpen10+3.1+0.31-3.30
Round 10W.HeJ.Hu – Y.ChenOpen10+5.1+0.51-1.60
Round 11W.HeS.Sun – Y.LianOpen10+8.3+0.83+0.40
Round 13W.HeD.Sacul – C.SumampouwOpen10+1.8+0.18-1.60
Round 14W.HeS.Mukherjee – D.MajumderOpen10-14.5-1.45-3.00
Round 15W.HeS.Shi – J.StansbyClosed10-8.9-0.89+1.20

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
+12.6Round 1WUHAN JIANG AN AREA63NTx♥5-3+9
+11.7Round 4POLMANY25♣♥K=+13
+8.8Round 13INDONESIA Mixed73♣♠2+2+11
+7.7Round 3WE THE NORTH285♣♠Q-1+11
+7.5Round 3WE THE NORTH214♥♦3-1+11
+7.1Round 9ZHEJIANGQIANTANG214♠x♦A-1+11
+6.9Round 1WUHAN JIANG AN AREA54♠♣10-1+10
+6.8Round 15USA 1 Women265♦♠J-1+12
+6.6Round 4POLMANY44♥♥7-1+13
+6.6Round 8HUBEI BRIDGE TEAM193NT♠2+1+1
+6.3Round 3WE THE NORTH233♦♣2-3+9
+6.2Round 5ISRAEL Open194♠♣A=+7
+6.2Round 13INDONESIA Mixed64♥♣2=+0
+5.9Round 11SHANGHAILVCHENG154♠♦5+1+0
+5.7Round 13INDONESIA Mixed54♥♠8-1-2
+5.1Round 1WUHAN JIANG AN AREA73NT♥5-1+6
+4.9Round 5ISRAEL Open183♠♥5-4+2
+4.6Round 11SHANGHAILVCHENG133NT♠4=+10
+4.5Round 14FORMIDABLES172♠♣6+3+6
+3.9Round 11SHANGHAILVCHENG183♠♣2-1+4
+3.6Round 8HUBEI BRIDGE TEAM124♥♦K+2+11
+3.5Round 13INDONESIA Mixed14♥♦Q=+0
+3.4Round 9ZHEJIANGQIANTANG291NT♣Q-1+1
+3.3Round 6RUSSIA Open253NT♥10-2+7
+3.1Round 1WUHAN JIANG AN AREA84♠♥4-1+10
+3.1Round 10REIGNWOOD73NT♠J=+0
+2.9Round 8HUBEI BRIDGE TEAM173♥♦5=+6
+2.9Round 9ZHEJIANGQIANTANG283♥♣10-2+5
+2.9Round 14FORMIDABLES192♠♥7-2+3
+2.8Round 15USA 1 Women303NT♦6-1+5
+2.7Round 10REIGNWOOD24♠♥A=+3
+2.5Round 15USA 1 Women283NT♥J+3+11
+2.4Round 10REIGNWOOD64♠♣10-1+6
+2.3Round 1WUHAN JIANG AN AREA32♥♠9+2+1
+2.1Round 5ISRAEL Open141NT♦J+1+6
+2.0Round 4POLMANY63♥♣10-2+3
+1.9Round 4POLMANY92♦♦6-2+7
+1.9Round 10REIGNWOOD53♥♠2-1-2
+1.9Round 11SHANGHAILVCHENG114♠x♦J-1+0
+1.9Round 14FORMIDABLES113NT♣8=-1
+1.8Round 15USA 1 Women232♠♠2+1+1
+1.7Round 8HUBEI BRIDGE TEAM185♦♣2=-2
+1.5Round 10REIGNWOOD92♥♣K-1+5
+1.5Round 11SHANGHAILVCHENG172♠♣7+1-6
+1.4Round 1WUHAN JIANG AN AREA92♠♣8=-3
+1.2Round 6RUSSIA Open281NT♦5+1-1
+1.1Round 3WE THE NORTH264♥♠K+2+13
+1.0Round 5ISRAEL Open121NT♥6=-1
+0.9Round 6RUSSIA Open222♥♦Q+1+0
+0.7Round 4POLMANY102♠♣A-1+0
+0.6Round 6RUSSIA Open302♥♣K+1+6
+0.5Round 9ZHEJIANGQIANTANG263NT♥8+2-12
+0.3Round 1WUHAN JIANG AN AREA102♠♣Q=+1
+0.3Round 8HUBEI BRIDGE TEAM133♦♠A+1+0
+0.2Round 10REIGNWOOD34♣♦5+1-6
+0.2Round 15USA 1 Women243NT♠2+2+0
+0.0Round 6RUSSIA Open262♦♥3+1+0
-0.0Round 8HUBEI BRIDGE TEAM114♠♥A+1+0
+0.0Round 8HUBEI BRIDGE TEAM143NT♠J+2+0
-0.0Round 10REIGNWOOD86NT♣9=-11
-0.1Round 3WE THE NORTH223NT♣Q-1-5
-0.1Round 5ISRAEL Open172♣♦5+2+0
-0.1Round 9ZHEJIANGQIANTANG243♥♦6-1-4
-0.1Round 13INDONESIA Mixed93NT♠6+1+1
-0.2Round 5ISRAEL Open113♠♦9=+0
-0.3Round 4POLMANY14♥♠K+1+0
-0.4Round 4POLMANY54♠♥A+1-1
-0.4Round 5ISRAEL Open202♠♦10+1+0
-0.4Round 11SHANGHAILVCHENG201♠♦2+1+0
-0.5Round 8HUBEI BRIDGE TEAM153NT♠3=-1
-0.5Round 11SHANGHAILVCHENG143♣♥8+2+1
-0.5Round 15USA 1 Women253NT♣2=-1
-0.6Round 1WUHAN JIANG AN AREA13♠♦9+1-6
-0.6Round 4POLMANY34♥♣6+2-11
-0.6Round 5ISRAEL Open161NT♠Q=-7
-0.6Round 6RUSSIA Open232♥♦5=+1
-0.6Round 9ZHEJIANGQIANTANG273♠♥A+1+6
-1.0Round 3WE THE NORTH255♦♥3-2-5
-1.2Round 8HUBEI BRIDGE TEAM202♥♣J=-6
-1.3Round 6RUSSIA Open213NT♦5-2+5
-1.3Round 10REIGNWOOD102♠♠2=+0
-1.4Round 11SHANGHAILVCHENG124♥♦J=+0
-1.5Round 1WUHAN JIANG AN AREA23♦♠9+1+0
-1.5Round 3WE THE NORTH243NT♥K+2+0
-1.5Round 14FORMIDABLES124♠♥10+1-1
-1.5Round 14FORMIDABLES164♠♥A-1-5
-1.6Round 5ISRAEL Open152♥♠A=-5
-1.7Round 9ZHEJIANGQIANTANG254♥♦5+2-11
-1.7Round 10REIGNWOOD11NT♦10=-5
-1.8Round 9ZHEJIANGQIANTANG304♠♦Q-1-10
-2.0Round 3WE THE NORTH304♠x♣2-3-2
-2.0Round 6RUSSIA Open275♠♥A-1-8
-2.1Round 14FORMIDABLES142NT♠4+1-1
-2.2Round 4POLMANY82♠♥10=+0
-2.3Round 14FORMIDABLES201NT♦6=-6
-2.4Round 8HUBEI BRIDGE TEAM163♥♣A-1+2
-3.1Round 15USA 1 Women214♥♦2-1-6
-3.2Round 9ZHEJIANGQIANTANG225♦♠6-1-5
-3.2Round 11SHANGHAILVCHENG163♥♣9-1-5
-3.3Round 13INDONESIA Mixed22♠♣8=-12
-3.4Round 9ZHEJIANGQIANTANG233NT♥K+2-14
-3.4Round 13INDONESIA Mixed42♠x♥4-1-3
-3.7Round 10REIGNWOOD44♦♠9-1-6
-3.9Round 3WE THE NORTH273♣♠J-3-4
-4.0Round 11SHANGHAILVCHENG193NT♦9=+0
-4.3Round 15USA 1 Women294♠x♦4-2+0
-4.4Round 5ISRAEL Open133NT♦9=+1
-4.5Round 14FORMIDABLES154♠♥4=-11
-4.8Round 14FORMIDABLES131NT♠2+2-6
-4.9Round 13INDONESIA Mixed103♠♥2-2-2
-5.1Round 13INDONESIA Mixed83NT♥2+2-10
-5.2Round 3WE THE NORTH294♠♥J=-10
-5.6Round 13INDONESIA Mixed33NT♦3=+1
-5.9Round 15USA 1 Women223NT♥2=+0
-6.0Round 4POLMANY74♠♣K-1-6
-6.5Round 6RUSSIA Open296♠♥10=+0
-7.1Round 14FORMIDABLES182♠♣A-3-8
-8.0Round 1WUHAN JIANG AN AREA44♥♦9=-10
-9.2Round 15USA 1 Women274♥x♦A=-10
-9.4Round 6RUSSIA Open245♣x♥Q-3-9