🇸🇬 LIU Yu Chen · SINGAPORE

20rank
+117.3Butler · 168 bds
+0.70per board
±4.4swing
+0.47vs par /bd · #37/99
+0.64adjusted /bd
Butler per round: 2.4 21.4 27.8 -11.5 3.6 1.1 22.6 11.8 -10.6 0 -1.6 50.3by round

vs par split: bidding -0.01 · play +0.47

Strength of schedule: opponents averaged -0.06/bd (an easy draw) → opponent-adjusted +0.64/bd

Card play — on target: opening leads 80.0% #37 of 99 · declarer play 90.2% #1 of 99 · defence 90.9% #9 of 99

Card play by contract type — on target
vs NTvs a suit
Opening leads70.0% (10)85.0% (20)
Declarer play78.9% (19)96.9% (32)
Defence81.8% (22)94.5% (55)

Opening leads by suit led: ♠ 85.7% (7) · ♥ 60.0% (10) · ♦ 100.0% (6) · ♣ 85.7% (7)

vs par by strain: NT +0.26 (54) · a suit +0.55 (113)

vs par by level: part-score +0.71 (62) · game +0.43 (97) · slam -1.25 (8)

By role: declaring +0.81/bd (-1.17 vs par · 90) · defending +0.57/bd (+2.36 vs par · 78)

By vulnerability: vulnerable +0.73/bd (+0.00 vs par · 84) · not vulnerable +0.67/bd (+0.94 vs par · 84)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2A.LeungS.Jesse – L.VornkahlClosed14+2.4+0.17+0.21
Round 3A.LeungKAR SOUVIK – ROY SAGNIKClosed14+21.4+1.53+0.57
Round 5A.LeungF.Basoalto – L.CuevasOpen14+27.8+1.99-2.00
Round 6A.LeungA.Boulin – T.GuilleminClosed14-11.5-0.82-1.14
Round 8A.LeungW.Peniston – R.CaveClosed14+3.6+0.26-1.00
Round 9A.LeungF.Chiarandini – A.GaiottiClosed14+1.1+0.08-3.00
Round 10A.LeungI.Petersen – T.BodinClosed14+22.6+1.61+1.21
Round 12A.LeungZ.Cai – F.YuanClosed14+11.8+0.84+2.29
Round 14A.LeungY.Wang – C.ChangClosed14-10.6-0.76+0.43
Round 15A.LeungP.Godlewski – K.MajewskiOpen14+0.0+0.00+2.64
Round 16A.LeungM.Wu – A.LamClosed14-1.6-0.11+1.00
Round 17A.LeungH.Paoli – J.MautoneOpen14+50.3+3.59+4.43

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
+15.8Round 17🇧🇷 BRAZIL73NT♥10-2+18
+12.8Round 5🇨🇱 CHILE244♠x♣9-4+12
+11.2Round 3🇮🇳 INDIA83♦x♠8-4+9
+10.7Round 3🇮🇳 INDIA53NTx♦3=+10
+10.6Round 14🇹🇼 CHINESE TAIPEI275♦♥K-2+11
+10.4Round 17🇧🇷 BRAZIL102♠x♠2-2+8
+10.2Round 14🇹🇼 CHINESE TAIPEI282♥xx♣8-1+12
+10.1Round 8🇧🇲 BERMUDA104♠x♣A-4-7
+9.5Round 10🇸🇪 SWEDEN175♥♠K-2+9
+9.5Round 16🇭🇰 CHINA HONG KONG213♣♥A=+14
+9.2Round 16🇭🇰 CHINA HONG KONG226♦♣5-3+14
+8.4Round 12🇨🇳 CHINA203NT♠Q=+0
+7.8Round 12🇨🇳 CHINA244♠♠2-1+11
+7.2Round 17🇧🇷 BRAZIL113NT♥5=+11
+7.1Round 10🇸🇪 SWEDEN206NT♥A-2+13
+6.9Round 17🇧🇷 BRAZIL63NT♥9=+7
+6.3Round 16🇭🇰 CHINA HONG KONG185♦♦7-2+6
+5.9Round 10🇸🇪 SWEDEN253NT♦10+3+14
+5.8Round 5🇨🇱 CHILE186♦♥8=+0
+5.6Round 2🇩🇪 GERMANY264♠♠2-1+3
+5.6Round 10🇸🇪 SWEDEN213♣♠5=+6
+5.3Round 17🇧🇷 BRAZIL134♠♦K-1+12
+5.1Round 5🇨🇱 CHILE284♥♣6-1+10
+4.9Round 2🇩🇪 GERMANY256♠♥2+1-11
+4.9Round 6🇫🇷 FRANCE134♠♠Q=+0
+4.9Round 9🇮🇹 ITALY172NT♦A=+6
+4.8Round 8🇧🇲 BERMUDA12♠♦6=+6
+4.8Round 9🇮🇹 ITALY203♠♣Q-1+0
+4.6Round 12🇨🇳 CHINA223♣♠J=+6
+4.2Round 3🇮🇳 INDIA74♠♠9=+9
+4.1Round 8🇧🇲 BERMUDA74♠♣A+2+2
+3.9Round 12🇨🇳 CHINA173NT♥5-1+10
+3.6Round 12🇨🇳 CHINA263NT♠7=-1
+3.5Round 3🇮🇳 INDIA63♦♣2+1+1
+3.4Round 5🇨🇱 CHILE163NT♠8+3-11
+3.4Round 5🇨🇱 CHILE253♠♥K=+0
+3.4Round 9🇮🇹 ITALY243NT♦5+2+0
+3.3Round 5🇨🇱 CHILE173NT♠J+2-10
+3.3Round 5🇨🇱 CHILE224NT♠7=-1
+3.2Round 9🇮🇹 ITALY184♠♥2+2-12
+3.1Round 5🇨🇱 CHILE263♠♥6+2-7
+2.9Round 15🇵🇱 POLAND125♥♠K+1+2
+2.8Round 2🇩🇪 GERMANY223♣♠A-1+6
+2.8Round 3🇮🇳 INDIA112NT♥9-1+5
+2.7Round 15🇵🇱 POLAND134♥♠9+2+5
+2.5Round 14🇹🇼 CHINESE TAIPEI263NT♠Q+2+1
+2.4Round 12🇨🇳 CHINA283NT♥5+1+0
+2.2Round 6🇫🇷 FRANCE111NT♣A=+6
+2.2Round 9🇮🇹 ITALY262♦♦J-2-9
+2.1Round 6🇫🇷 FRANCE53NT♠5+1+0
+2.1Round 9🇮🇹 ITALY164♠♥Q=+0
+1.9Round 10🇸🇪 SWEDEN244♥♥5-1+4
+1.8Round 17🇧🇷 BRAZIL54♥♦4=+8
+1.6Round 6🇫🇷 FRANCE13NT♣4+1+0
+1.5Round 3🇮🇳 INDIA14♥♠Q+2-10
+1.5Round 6🇫🇷 FRANCE64♠♥A+1+0
+1.5Round 6🇫🇷 FRANCE124♠♠10+2+1
+1.5Round 12🇨🇳 CHINA164♠x♠6-1+6
+1.4Round 6🇫🇷 FRANCE43♥♦5=+0
+1.4Round 10🇸🇪 SWEDEN162♠♠2-2-2
+1.4Round 17🇧🇷 BRAZIL125♣♥7+1-1
+1.3Round 3🇮🇳 INDIA132♠♦J-1-1
+1.2Round 5🇨🇱 CHILE213NT♠8=-1
+1.2Round 17🇧🇷 BRAZIL83♠♥J-1+3
+1.1Round 2🇩🇪 GERMANY194♠♦9=+0
+1.1Round 3🇮🇳 INDIA43♣♥K-1+1
+1.1Round 9🇮🇹 ITALY216♠♣2+1-13
+1.1Round 17🇧🇷 BRAZIL143NT♥7=+2
+1.0Round 2🇩🇪 GERMANY212♠♣2+1+1
+1.0Round 2🇩🇪 GERMANY236♥♣2=-13
+0.9Round 8🇧🇲 BERMUDA123NT♠K=+0
+0.9Round 9🇮🇹 ITALY273♥♥2-1+2
+0.9Round 10🇸🇪 SWEDEN281NTx♥A-2+2
+0.8Round 8🇧🇲 BERMUDA44♠♥5+2+1
+0.8Round 12🇨🇳 CHINA213♥♠5-2+1
+0.8Round 14🇹🇼 CHINESE TAIPEI173NT♠4=-1
+0.8Round 15🇵🇱 POLAND63NT♠7=+1
+0.6Round 3🇮🇳 INDIA22♥♦7-1-1
+0.6Round 6🇫🇷 FRANCE73♦♣A-2+2
+0.6Round 15🇵🇱 POLAND33♠♣K-3+10
+0.6Round 15🇵🇱 POLAND8Adj.♥9+3
+0.6Round 16🇭🇰 CHINA HONG KONG193NT♥2=+0
+0.6Round 17🇧🇷 BRAZIL23♠♣5=+1
+0.5Round 8🇧🇲 BERMUDA62♥♠2-1+11
+0.5Round 15🇵🇱 POLAND14♠♣4+2+1
+0.5Round 16🇭🇰 CHINA HONG KONG283NT♣4+2+0
+0.5Round 17🇧🇷 BRAZIL13NT♠J=-1
+0.4Round 9🇮🇹 ITALY224♠♦2+1+0
+0.4Round 10🇸🇪 SWEDEN153NT♥3=-10
+0.4Round 10🇸🇪 SWEDEN274♥♣K+1+0
+0.4Round 15🇵🇱 POLAND93NT♠Q-3+8
+0.3Round 12🇨🇳 CHINA271NT♠5+2+1
+0.2Round 17🇧🇷 BRAZIL44♠♥2+1+1
+0.1Round 2🇩🇪 GERMANY242♠♠9+1+0
+0.1Round 5🇨🇱 CHILE153♦♠7-2+6
+0.1Round 14🇹🇼 CHINESE TAIPEI254♠♣J+2+13
+0.1Round 17🇧🇷 BRAZIL32♠♥2+3-6
+0.0Round 6🇫🇷 FRANCE85♣♥A=+0
+0.0Round 15🇵🇱 POLAND44♥♦5+1+0
-0.1Round 10🇸🇪 SWEDEN233♠♣6-1-9
-0.4Round 2🇩🇪 GERMANY154♠♥Q+1+0
-0.5Round 5🇨🇱 CHILE202♠♥Q+2-10
-0.5Round 10🇸🇪 SWEDEN264♥♣A=+0
-0.5Round 15🇵🇱 POLAND101NT♦9-1-1
-0.5Round 16🇭🇰 CHINA HONG KONG153♠♦A+1+7
-0.6Round 15🇵🇱 POLAND113♠♣K+1+7
-0.6Round 16🇭🇰 CHINA HONG KONG204♠♥A-1-6
-0.6Round 16🇭🇰 CHINA HONG KONG243♦♠K+3-13
-0.7Round 8🇧🇲 BERMUDA113NT♠A-2+6
-0.7Round 8🇧🇲 BERMUDA135♥♠K-1-12
-0.8Round 2🇩🇪 GERMANY273NT♥J+2+0
-1.1Round 2🇩🇪 GERMANY284♥♠7+2+11
-1.1Round 5🇨🇱 CHILE196NT♣10=+0
-1.1Round 14🇹🇼 CHINESE TAIPEI193♥♥3+2+9
-1.4Round 15🇵🇱 POLAND52♠♥J=+1
-1.4Round 16🇭🇰 CHINA HONG KONG253NT♥3-2-5
-1.5Round 2🇩🇪 GERMANY165♦x♣A-3+0
-1.5Round 10🇸🇪 SWEDEN195♣♠3=+0
-1.5Round 15🇵🇱 POLAND73♦♠Q=+1
-1.5Round 16🇭🇰 CHINA HONG KONG163NT♣Q=+1
-1.8Round 3🇮🇳 INDIA102♥x♠Q-1-3
-1.8Round 8🇧🇲 BERMUDA53♦♠7=+0
-2.0Round 8🇧🇲 BERMUDA84♥♣7+1-1
-2.0Round 9🇮🇹 ITALY284♥♠2+1-1
-2.1Round 2🇩🇪 GERMANY201NT♠Q-1+0
-2.1Round 14🇹🇼 CHINESE TAIPEI212♣♠K+1+0
-2.1Round 15🇵🇱 POLAND142♠♣A=+0
-2.2Round 2🇩🇪 GERMANY174♥♠J=+11
-2.2Round 9🇮🇹 ITALY254♠♣3-1-5
-2.2Round 16🇭🇰 CHINA HONG KONG171NT♥J-3-1
-2.2Round 17🇧🇷 BRAZIL91NT♣9+1-1
-2.4Round 8🇧🇲 BERMUDA21♠♦2+1-5
-2.4Round 8🇧🇲 BERMUDA93NT♦2-1-5
-2.4Round 14🇹🇼 CHINESE TAIPEI204♥♦A=+0
-2.4Round 14🇹🇼 CHINESE TAIPEI233NT♣Q-1-5
-2.4Round 15🇵🇱 POLAND23NT♥5+3-1
-2.5Round 3🇮🇳 INDIA144♠♣5=+1
-2.5Round 6🇫🇷 FRANCE25♣♠K=+0
-2.5Round 12🇨🇳 CHINA154NT♣3+2+13
-2.5Round 14🇹🇼 CHINESE TAIPEI183♣x♣A-1-2
-2.7Round 8🇧🇲 BERMUDA143♠♥A-1-4
-2.8Round 5🇨🇱 CHILE233♠♣Q-1-5
-2.8Round 6🇫🇷 FRANCE32♥♠6=+0
-3.1Round 12🇨🇳 CHINA191NT♠9=-5
-3.4Round 3🇮🇳 INDIA123NT♦6=-7
-3.6Round 3🇮🇳 INDIA34♥♠5=+0
-3.9Round 10🇸🇪 SWEDEN182♠♥Q+1+0
-4.1Round 14🇹🇼 CHINESE TAIPEI223NT♠3-2-11
-4.2Round 3🇮🇳 INDIA91NT♥2+1-6
-4.5Round 10🇸🇪 SWEDEN223NT♦2-3-10
-4.6Round 16🇭🇰 CHINA HONG KONG232♠♥5=-1
-4.8Round 14🇹🇼 CHINESE TAIPEI164♥♣3-2-11
-4.9Round 8🇧🇲 BERMUDA33NT♣J-2-6
-5.0Round 12🇨🇳 CHINA252NT♦2-1-5
-5.1Round 12🇨🇳 CHINA183NT♠10-2-6
-5.4Round 16🇭🇰 CHINA HONG KONG275♦x♣3-3-2
-5.6Round 9🇮🇹 ITALY234♠♠A-1-6
-5.8Round 12🇨🇳 CHINA235♣♥7=+1
-5.9Round 9🇮🇹 ITALY194♠♣A+1+0
-6.0Round 2🇩🇪 GERMANY184♠x♦Q=-5
-6.2Round 6🇫🇷 FRANCE145♦x♥8=-3
-6.2Round 9🇮🇹 ITALY152♠♣2-3-4
-6.7Round 6🇫🇷 FRANCE93♠x♠2=-6
-7.2Round 14🇹🇼 CHINESE TAIPEI154♥♥9=+0
-8.2Round 14🇹🇼 CHINESE TAIPEI243NT♥2-1-10
-9.1Round 6🇫🇷 FRANCE105♥x♠J=-16
-9.3Round 5🇨🇱 CHILE275♣x♠A-4-11
-10.9Round 16🇭🇰 CHINA HONG KONG266♠♥K=+0