🇨🇳 TANG Zhi · CHINA

23rank
+166.4Butler · 266 bds
+0.63per board
±4.2swing
+1.03vs par /bd · #6/115
+0.61adjusted /bd
Butler per round: 18 13.9 16 -14.3 12.3 19.7 -5.8 8.1 12.4 1.9 5.1 -16.8 -9.5 17.2 10.9 38.2 10.5 17.9 10.7by round

vs par split: bidding +1.16 · play -0.11

Strength of schedule: opponents averaged -0.01/bd (an average draw) → opponent-adjusted +0.61/bd

Card play — on target: opening leads 79.2% #54 of 115 · declarer play 70.8% #71 of 115 · defence 82.6% #69 of 115

Card play by contract type — on target
vs NTvs a suit
Opening leads72.4% (29)83.7% (43)
Declarer play78.9% (19)67.9% (53)
Defence89.6% (48)78.6% (84)

Opening leads by suit led: ♠ 76.9% (13) · ♥ 77.3% (22) · ♦ 76.2% (21) · ♣ 87.5% (16)

vs par by strain: NT +1.74 (86) · a suit +0.70 (179)

vs par by level: part-score +1.73 (79) · game +0.79 (164) · slam +0.46 (22)

By role: declaring +0.69/bd (-1.39 vs par · 134) · defending +0.56/bd (+3.48 vs par · 132)

By vulnerability: vulnerable +0.80/bd (+1.27 vs par · 133) · not vulnerable +0.45/bd (+0.78 vs par · 133)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1Y.TaoW.Mamdouh – M.NashaatClosed14+18.0+1.29+2.64
Round 2Y.TaoS.Williams – J.ThompsonOpen14+13.9+0.99+2.00
Round 3Y.TaoC.Lorenzini – T.CoudertOpen14+16.0+1.14+1.43
Round 4Y.TaoA.Hudson – G.HermanOpen14-14.3-1.02-3.50
Round 5Y.TaoA.Argain – N.SengialiClosed14+12.3+0.88+3.43
Round 6Y.TaoZ.Grossack – A.GrossackClosed14+19.7+1.41+2.36
Round 7Y.TaoT.Van Overbeeke – T.PolakOpen14-5.8-0.41+0.29
Round 8Y.TaoP.Jassem – J.WojcieszekClosed14+8.1+0.58+0.43
Round 9Y.TaoG.Ho – R.TamClosed14+12.4+0.89+1.86
Round 10Y.TaoR.Jepsen – D.BildeOpen14+1.9+0.14+0.64
Round 11Y.TaoK.Lazar – B.Szirmay-KalosOpen14+5.1+0.36+0.07
Round 12Y.TaoS.Ekenberg – S.HultClosed14-16.8-1.20+1.93
Round 13Y.TaoS.Shan – K.LimOpen14-9.5-0.68+0.50
Round 15Y.TaoB.Ozen – E.AydogduClosed14+17.2+1.23+3.43
Round 16Y.TaoS.Bailey – S.CouttsClosed14+10.9+0.78+0.00
Round 18X.XiaM.Moji – K.MoletaClosed14+38.2+2.73+0.93
Round 19Y.TaoT.Walsh – S.HuangOpen14+10.5+0.75+0.07
Round 20Y.TaoK.Ellingsen – H.EideOpen14+17.9+1.28-0.50
Round 21Y.TaoJ.Wang – Y.ChenClosed14+10.7+0.76+1.50

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
+12.7Round 5🇦🇷 ARGENTINA132♦x♣K-3+12
+12.4Round 13🇸🇬 SINGAPORE42♥x♣Q=+13
+11.2Round 19🇨🇦 CANADA96♠♠4=+11
+10.1Round 6🇺🇸 USA 1276NT♦7=+0
+10.0Round 8🇵🇱 POLAND193♦x♥Q-2+9
+9.9Round 15🇹🇷 TURKEY133♣x♦3-3+12
+9.7Round 20🇳🇴 NORWAY234♥♠8+1+2
+9.4Round 18BOTSWANA212NT♠4-2+11
+8.8Round 4🇺🇸 USA 2184♥♦A=+8
+8.7Round 5🇦🇷 ARGENTINA84NT♦9-2+11
+8.6Round 1🇪🇬 EGYPT73NT♥3+2+1
+8.3Round 19🇨🇦 CANADA53♠♥8=+1
+8.3Round 19🇨🇦 CANADA106♠♥K-1+13
+8.2Round 21🇹🇼 CHINESE TAIPEI94♠♦2-2+13
+8.0Round 10🇩🇰 DENMARK204♥x♣J-2+12
+7.8Round 2🇦🇺 AUSTRALIA163NT♦5-2+7
+7.5Round 11🇩🇪 GERMANY43♥x♥A-3+5
+7.4Round 16🇳🇿 NEW ZEALAND174♥♣K-4+7
+7.3Round 6🇺🇸 USA 1183NT♠J+3+11
+7.2Round 3🇫🇷 FRANCE94♠♦4+1+1
+7.0Round 18BOTSWANA202♥♠K+1+13
+6.7Round 4🇺🇸 USA 2206♣♦2-2+8
+6.7Round 4🇺🇸 USA 2263NT♦2+2+0
+6.5Round 9🇭🇰 CHINA HONG KONG36♣♦3=-2
+6.5Round 19🇨🇦 CANADA131NTx♠8+1+7
+6.3Round 20🇳🇴 NORWAY206♣♥4=-2
+6.3Round 21🇹🇼 CHINESE TAIPEI23♠♦2+2+12
+6.1Round 18BOTSWANA252♥♦K+3+9
+5.9Round 3🇫🇷 FRANCE144♥♦A-1-2
+5.9Round 18BOTSWANA274♥♠J=+1
+5.7Round 13🇸🇬 SINGAPORE133NT♥2+1+0
+5.5Round 5🇦🇷 ARGENTINA103♥♦3+2+10
+5.5Round 20🇳🇴 NORWAY182♥♦3+2+7
+5.4Round 20🇳🇴 NORWAY164♠♣8=+7
+5.3Round 8🇵🇱 POLAND274♥♥4=+0
+5.3Round 9🇭🇰 CHINA HONG KONG114♥♦10+2+11
+5.3Round 11🇩🇪 GERMANY95♣♥A=+5
+5.2Round 8🇵🇱 POLAND255♦x♠K-2+8
+5.1Round 13🇸🇬 SINGAPORE127♥♥T-1+14
+4.9Round 21🇹🇼 CHINESE TAIPEI103NT♥Q=+0
+4.8Round 11🇩🇪 GERMANY134♠♣A=+0
+4.7Round 2🇦🇺 AUSTRALIA176♥♥4=+0
+4.7Round 10🇩🇰 DENMARK175♦♠A=-1
+4.6Round 16🇳🇿 NEW ZEALAND184♥♣4+2+14
+4.5Round 7🇳🇱 NETHERLANDS113♣♠Q+3+7
+4.5Round 18BOTSWANA224♥♦4+1+1
+4.3Round 16🇳🇿 NEW ZEALAND223NT♠8+1-11
+4.3Round 18BOTSWANA243NT♥J+1+0
+4.2Round 5🇦🇷 ARGENTINA74♠♣6+1+13
+4.2Round 13🇸🇬 SINGAPORE53NT♣2-2+6
+4.0Round 2🇦🇺 AUSTRALIA153NT♠K+4+10
+4.0Round 8🇵🇱 POLAND283NT♣Q-2+6
+4.0Round 15🇹🇷 TURKEY23NT♥3-2+6
+4.0Round 18BOTSWANA185♦♣Q+1+11
+4.0Round 21🇹🇼 CHINESE TAIPEI35♣♦5+1+13
+3.8Round 1🇪🇬 EGYPT143NT♦5-3+6
+3.7Round 18BOTSWANA152♥♦A+1+1
+3.5Round 6🇺🇸 USA 1247♠♠9-2+11
+3.5Round 13🇸🇬 SINGAPORE143NT♥7+3+2
+3.3Round 16🇳🇿 NEW ZEALAND153NT♣J+1+0
+3.3Round 21🇹🇼 CHINESE TAIPEI42♠♣4+4-10
+3.2Round 12🇸🇪 SWEDEN225♣x♦5-3+12
+3.1Round 8🇵🇱 POLAND183♣♠K=+1
+3.0Round 5🇦🇷 ARGENTINA22NTx♥10-3+9
+3.0Round 12🇸🇪 SWEDEN284♠♥A-1+10
+2.9Round 12🇸🇪 SWEDEN233NT♦A+2+4
+2.8Round 1🇪🇬 EGYPT53NT♣8=-1
+2.8Round 6🇺🇸 USA 1283NT♦7-1+5
+2.7Round 2🇦🇺 AUSTRALIA264♥♣K-1+12
+2.7Round 6🇺🇸 USA 1203NTx♦K-1+0
+2.7Round 9🇭🇰 CHINA HONG KONG25♣x♥A-2+5
+2.7Round 12🇸🇪 SWEDEN216♥♠A=+0
+2.7Round 15🇹🇷 TURKEY63NT♥4=+17
+2.6Round 3🇫🇷 FRANCE53♦♠K=+0
+2.6Round 21🇹🇼 CHINESE TAIPEI52♥+1+1
+2.5Round 1🇪🇬 EGYPT114♥♣4-1+5
+2.5Round 10🇩🇰 DENMARK283NT♥7-1+5
+2.4Round 9🇭🇰 CHINA HONG KONG54♥♣J=+3
+2.4Round 15🇹🇷 TURKEY82♠♥T+1+1
+2.4Round 19🇨🇦 CANADA121NT♥J=+1
+2.4Round 20🇳🇴 NORWAY263NT♦8+1+1
+2.3Round 7🇳🇱 NETHERLANDS134♥♠4+1+1
+2.3Round 8🇵🇱 POLAND173NT♣4-1+5
+2.3Round 15🇹🇷 TURKEY13NT♠3=+0
+2.2Round 7🇳🇱 NETHERLANDS81NT♣7-4+2
+2.2Round 9🇭🇰 CHINA HONG KONG83♠♦2+2+6
+2.2Round 16🇳🇿 NEW ZEALAND193♣♦7-1+3
+2.1Round 2🇦🇺 AUSTRALIA223♦♣Q+1+0
+2.1Round 4🇺🇸 USA 2171NT♦A+1+5
+2.1Round 5🇦🇷 ARGENTINA63NT♦4+2+2
+1.9Round 1🇪🇬 EGYPT13NT♣5+3+14
+1.9Round 1🇪🇬 EGYPT32NT♣6-2+0
+1.8Round 2🇦🇺 AUSTRALIA273♥♥T-2+7
+1.7Round 2🇦🇺 AUSTRALIA183♥♣J-1+7
+1.6Round 3🇫🇷 FRANCE74♥♠J+1+0
+1.6Round 10🇩🇰 DENMARK275♥♠A-3+4
+1.5Round 3🇫🇷 FRANCE14♠♥K-1+4
+1.5Round 3🇫🇷 FRANCE23NT♣10-1+10
+1.5Round 7🇳🇱 NETHERLANDS42♥♦A=+0
+1.4Round 11🇩🇪 GERMANY63NT♥T-1+6
+1.4Round 12🇸🇪 SWEDEN194♥♣2=+0
+1.3Round 8🇵🇱 POLAND204♠♥7=-13
+1.3Round 11🇩🇪 GERMANY142♥♠9=+0
+1.3Round 15🇹🇷 TURKEY51NT♣9-2+0
+1.2Round 1🇪🇬 EGYPT94♠♣9+2+2
+1.2Round 3🇫🇷 FRANCE124♠♥J-2+7
+1.2Round 5🇦🇷 ARGENTINA93NT♣2+1+0
+1.2Round 6🇺🇸 USA 1164♠♦2-1+9
+1.2Round 6🇺🇸 USA 1173NT♠J-2+5
+1.2Round 7🇳🇱 NETHERLANDS106♥♠2+1+1
+1.1Round 3🇫🇷 FRANCE41NT♥10-1+0
+1.1Round 7🇳🇱 NETHERLANDS74♥♠Q+2+13
+1.1Round 8🇵🇱 POLAND161NT♣6+1+10
+1.1Round 12🇸🇪 SWEDEN254♥♣J+2+1
+1.1Round 16🇳🇿 NEW ZEALAND204♥♠Q+2-13
+1.1Round 20🇳🇴 NORWAY214♠♦A=+0
+1.1Round 20🇳🇴 NORWAY254♠♥A-2-6
+1.1Round 21🇹🇼 CHINESE TAIPEI13♦♥J+1+0
+1.0Round 11🇩🇪 GERMANY33NT♣2+2+1
+0.9Round 1🇪🇬 EGYPT85♥♦5+1-1
+0.9Round 2🇦🇺 AUSTRALIA233NT♦2=-1
+0.9Round 3🇫🇷 FRANCE34♥♦3+1+1
+0.9Round 3🇫🇷 FRANCE131NT♣3+1-1
+0.8Round 9🇭🇰 CHINA HONG KONG62♥♦A=+0
+0.7Round 1🇪🇬 EGYPT135♣♠K+1+13
+0.7Round 4🇺🇸 USA 2212♠♥Q+1-10
+0.7Round 10🇩🇰 DENMARK164♥♠4=+0
+0.7Round 11🇩🇪 GERMANY122♠♣J=-1
+0.7Round 15🇹🇷 TURKEY114♥♦5+1+0
+0.7Round 16🇳🇿 NEW ZEALAND283NT♠10=+1
+0.6Round 1🇪🇬 EGYPT22♠♠10-1-2
+0.6Round 6🇺🇸 USA 1154♠♦A+1+0
+0.6Round 9🇭🇰 CHINA HONG KONG93♣♥A-1+0
+0.6Round 19🇨🇦 CANADA113NT♠6+2+0
+0.6Round 20🇳🇴 NORWAY154♥♠4+1+0
+0.5Round 4🇺🇸 USA 2193♠♥K+1+1
+0.5Round 9🇭🇰 CHINA HONG KONG104♥♥5+3-17
+0.4Round 7🇳🇱 NETHERLANDS53NT♥3-3-9
+0.4Round 16🇳🇿 NEW ZEALAND166NT♥A=+0
+0.4Round 18BOTSWANA284♠♥Q+1+4
+0.3Round 6🇺🇸 USA 1263NT♦4=-1
+0.3Round 9🇭🇰 CHINA HONG KONG133♦♣10-1-1
+0.3Round 15🇹🇷 TURKEY43♦♥A+1+10
+0.3Round 18BOTSWANA234♠♣Q+1+0
+0.3Round 19🇨🇦 CANADA82♠♦8+3-6
+0.2Round 1🇪🇬 EGYPT43NT♦4+2+13
+0.2Round 19🇨🇦 CANADA65♦x♠K-2+0
+0.0Round 10🇩🇰 DENMARK244♠♦7=+0
-0.0Round 15🇹🇷 TURKEY124♠♦Q+1+0
+0.0Round 16🇳🇿 NEW ZEALAND252♠♦2-1+2
-0.0Round 19🇨🇦 CANADA34♠♥K-2+0
-0.1Round 3🇫🇷 FRANCE113NT♠6+3+11
-0.1Round 7🇳🇱 NETHERLANDS64♠♣4-1-5
-0.1Round 11🇩🇪 GERMANY103♣♥9=+0
-0.1Round 12🇸🇪 SWEDEN263NT♥6+2+13
-0.2Round 20🇳🇴 NORWAY284♥♣5+1+0
-0.3Round 4🇺🇸 USA 2164♥♠Q+1+0
-0.3Round 13🇸🇬 SINGAPORE71NT♠2-3+8
-0.4Round 6🇺🇸 USA 1216♣x♦A-2-5
-0.4Round 7🇳🇱 NETHERLANDS94♠♥A=+0
-0.4Round 12🇸🇪 SWEDEN163♠♣4=+0
-0.5Round 9🇭🇰 CHINA HONG KONG73NT♥2+2+13
-0.5Round 10🇩🇰 DENMARK182NT♠5=-6
-0.5Round 18BOTSWANA163NT♣4+3-14
-0.5Round 21🇹🇼 CHINESE TAIPEI62♠♥Q=+1
-0.6Round 2🇦🇺 AUSTRALIA191NT♦4=-2
-0.6Round 9🇭🇰 CHINA HONG KONG43♥♣3=+7
-0.6Round 10🇩🇰 DENMARK193NT♦A+1+0
-0.6Round 15🇹🇷 TURKEY95♥♣K=+0
-0.6Round 15🇹🇷 TURKEY144♠♥2+2-1
-0.6Round 20🇳🇴 NORWAY223NT♠3=-1
-0.7Round 2🇦🇺 AUSTRALIA213NT♥J+1+0
-0.7Round 3🇫🇷 FRANCE83NT♥Q-1-5
-0.8Round 1🇪🇬 EGYPT104♠♦J+1+0
-0.8Round 15🇹🇷 TURKEY33♦♦4-1+3
-0.8Round 16🇳🇿 NEW ZEALAND243NT♠9=+0
-0.9Round 2🇦🇺 AUSTRALIA204♥♠7-2-7
-0.9Round 13🇸🇬 SINGAPORE93♠♥A+2+3
-0.9Round 18BOTSWANA174♠♦2=+0
-1.0Round 5🇦🇷 ARGENTINA13NT♥9+1+1
-1.0Round 5🇦🇷 ARGENTINA113NT♥7+1+0
-1.0Round 5🇦🇷 ARGENTINA14Pass-3
-1.0Round 6🇺🇸 USA 1223NT♠9=-2
-1.0Round 9🇭🇰 CHINA HONG KONG127♦x♥A-2+0
-1.0Round 10🇩🇰 DENMARK234♠♥6+1+0
-1.0Round 10🇩🇰 DENMARK254♥♦J=+1
-1.0Round 11🇩🇪 GERMANY83NT♣Q+1+0
-1.0Round 18BOTSWANA195♥♦J=-11
-1.1Round 8🇵🇱 POLAND263♠♣Q+1+10
-1.1Round 13🇸🇬 SINGAPORE64NT♠2+1+13
-1.1Round 13🇸🇬 SINGAPORE86♠♦4=-11
-1.1Round 15🇹🇷 TURKEY104♠♣2=+0
-1.2Round 3🇫🇷 FRANCE63NT♥4-1-1
-1.2Round 12🇸🇪 SWEDEN152♠♥A-1+1
-1.2Round 16🇳🇿 NEW ZEALAND263NT♥3+1+0
-1.2Round 20🇳🇴 NORWAY173♦♥T=+7
-1.3Round 12🇸🇪 SWEDEN175♣♠K+2-2
-1.3Round 21🇹🇼 CHINESE TAIPEI82♠♥6+1-1
-1.4Round 4🇺🇸 USA 2223♥♠2+1+1
-1.4Round 5🇦🇷 ARGENTINA124♠♥3=+0
-1.6Round 6🇺🇸 USA 1254♠♣K+1+0
-1.6Round 11🇩🇪 GERMANY12♣♦Q+1+0
-1.7Round 7🇳🇱 NETHERLANDS124♥♣A=+1
-1.7Round 10🇩🇰 DENMARK224♥♠A+1-11
-1.7Round 21🇹🇼 CHINESE TAIPEI124♥♦5+1-1
-1.9Round 9🇭🇰 CHINA HONG KONG143♠♥6=+0
-2.0Round 10🇩🇰 DENMARK153♥♦K-2+5
-2.0Round 21🇹🇼 CHINESE TAIPEI132♦♦K-1+11
-2.1Round 4🇺🇸 USA 2253NT♥Q-2-6
-2.1Round 10🇩🇰 DENMARK263♦♣10+1+0
-2.2Round 2🇦🇺 AUSTRALIA254♠♦K=+0
-2.2Round 2🇦🇺 AUSTRALIA283NT♣5=+1
-2.2Round 11🇩🇪 GERMANY54♠♥A+1+0
-2.2Round 11🇩🇪 GERMANY73♥♦Q+2-8
-2.2Round 12🇸🇪 SWEDEN273NT♥7+3+10
-2.3Round 1🇪🇬 EGYPT126♦♣J=-13
-2.4Round 16🇳🇿 NEW ZEALAND275♦♣A=-2
-2.5Round 19🇨🇦 CANADA41NT♥7=+0
-2.7Round 11🇩🇪 GERMANY113NT♣3+1+0
-2.8Round 6🇺🇸 USA 1194♠♣2=+0
-2.9Round 7🇳🇱 NETHERLANDS143♥♠A=-6
-3.0Round 7🇳🇱 NETHERLANDS24♠x♠K-1+6
-3.3Round 15🇹🇷 TURKEY77♠♥Q=+0
-3.4Round 16🇳🇿 NEW ZEALAND232♠♣4-1+1
-3.4Round 20🇳🇴 NORWAY276♠x♣5-1-11
-3.5Round 8🇵🇱 POLAND243NT♥3=-7
-3.5Round 13🇸🇬 SINGAPORE103♣♠2-2-8
-3.6Round 4🇺🇸 USA 2274♥xx♠5-1-8
-3.8Round 8🇵🇱 POLAND153♠♣A=-1
-3.8Round 8🇵🇱 POLAND214♠♣A=-7
-4.0Round 1🇪🇬 EGYPT63NT♠Q=+0
-4.0Round 20🇳🇴 NORWAY193NT♥K-1-10
-4.0Round 21🇹🇼 CHINESE TAIPEI117NT♦4=+0
-4.2Round 4🇺🇸 USA 2244♠♥A-2-5
-4.2Round 6🇺🇸 USA 1234♠♥A=+0
-4.4Round 13🇸🇬 SINGAPORE114♠♣8=-7
-4.8Round 20🇳🇴 NORWAY243NT♦4+3-1
-4.9Round 9🇭🇰 CHINA HONG KONG14♥♦4=+1
-5.0Round 18BOTSWANA261NTx♠2=-13
-5.1Round 7🇳🇱 NETHERLANDS35♦♣A=+2
-5.1Round 21🇹🇼 CHINESE TAIPEI74♠♥2-1-12
-5.1Round 21🇹🇼 CHINESE TAIPEI144♠♣T-2-6
-5.2Round 2🇦🇺 AUSTRALIA241♥♠6+2-6
-5.3Round 12🇸🇪 SWEDEN243NT♠6-1-10
-5.3Round 16🇳🇿 NEW ZEALAND214♥♣A-2-2
-5.3Round 19🇨🇦 CANADA12♣x♣J-3-2
-5.4Round 19🇨🇦 CANADA143NT♦9=+1
-5.6Round 19🇨🇦 CANADA74♠♣A-2-13
-5.7Round 8🇵🇱 POLAND232♥♠J-2-7
-5.8Round 7🇳🇱 NETHERLANDS15♣x♦5-2-9
-6.3Round 8🇵🇱 POLAND224♠♣J=-8
-6.4Round 3🇫🇷 FRANCE101NT♥2=-5
-6.6Round 5🇦🇷 ARGENTINA54♠x♦9-1-12
-6.7Round 5🇦🇷 ARGENTINA43♥♠3+1-8
-6.7Round 10🇩🇰 DENMARK214♥♦J=+0
-7.1Round 11🇩🇪 GERMANY24♠x♦3-1-7
-7.4Round 5🇦🇷 ARGENTINA36♠♣4=+13
-7.7Round 4🇺🇸 USA 2284♥♣9=-14
-8.4Round 13🇸🇬 SINGAPORE23NT♥3-4+0
-8.5Round 19🇨🇦 CANADA25♠x♥K-1-12
-9.1Round 4🇺🇸 USA 2235♦x♥5-2-12
-9.4Round 12🇸🇪 SWEDEN184♠♣7-1-12
-10.0Round 13🇸🇬 SINGAPORE33NT♦Q-1-14
-10.7Round 13🇸🇬 SINGAPORE13♦x♥2=-12
-11.2Round 12🇸🇪 SWEDEN206♣♦6=+0
-11.4Round 4🇺🇸 USA 2156♠♦2-1-17