🇨🇦 CHEN Weijun · CANADA

131rank
-178.6Butler · 196 bds
-0.91per board
±4.4swing
-1.28vs par /bd · #136/141
-0.86adjusted /bd
Butler per round: -2.2 -13.4 22.3 -24.4 -5.1 -23.4 -2.3 -8.7 -1.8 -44.4 -28.4 -29.1 -3.6 -14.1by round

vs par split: bidding -0.81 · play -0.47

Strength of schedule: opponents averaged +0.05/bd (an average draw) → opponent-adjusted -0.86/bd

Card play — on target: opening leads 92.2% #2 of 141 · declarer play 68.6% #110 of 141 · defence 76.0% #136 of 141

Bidding activity — not a pass: 41.7% #90 of 141 (227/544)

Card play by contract type — on target
vs NTvs a suit
Opening leads88.2% (17)94.1% (34)
Declarer play80.0% (5)66.7% (30)
Defence69.7% (33)79.1% (67)

Opening leads by suit led: ♠ 100.0% (7) · ♥ 92.3% (13) · ♦ 94.7% (19) · ♣ 83.3% (12)

vs par by strain: NT -1.07 (55) · a suit -1.36 (141)

vs par by level: part-score -1.41 (74) · game -1.09 (110) · slam -2.25 (12)

By role: declaring -1.14/bd (-3.99 vs par · 96) · defending -0.69/bd (+1.32 vs par · 100)

By vulnerability: vulnerable -0.65/bd (-0.95 vs par · 98) · not vulnerable -1.17/bd (-1.61 vs par · 98)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2X.HongA.Leleu – M.Kurek BeaulieuOpen14-2.2-0.16+2.71
Round 3X.HongJ.Sigsgaard – E.RosthoejOpen14-13.4-0.96+0.00
Round 5X.HongC.Vandenbossche – M.StasClosed14+22.3+1.59-1.07
Round 6X.HongM.Espinosa-Paz – M.PrevideOpen14-24.4-1.74-2.93
Round 7X.HongA.Fuglestad – M.HardingOpen14-5.1-0.36-2.43
Round 9X.HongE.Tichy – A.ZalaiClosed14-23.4-1.67-3.64
Round 10X.HongO.Schireson – L.BakerClosed14-2.3-0.16-0.86
Round 13X.HongL.Sorensen – A.NestoridisOpen14-8.7-0.62-1.71
Round 15X.HongS.Raza – R.AghaOpen14-1.8-0.13+0.71
Round 16X.HongM.Zur-Campanile – J.Seamon-MolsonOpen14-44.4-3.17-4.86
Round 17X.HongH.Sellami – M.Farhani GoncalvesClosed14-28.4-2.03-1.29
Round 19X.HongS.Li – C.BoothOpen14-29.1-2.08-2.00
Round 20X.HongE.Jacob – R.CooperOpen14-3.6-0.26+1.21
Round 22X.HongX.Zuo – X.YuanClosed14-14.1-1.01-1.79

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 13🇿🇦 SOUTH AFRICA125♥x♦7-1+12
+11.2Round 5🇧🇪 BELGIUM14♥♦T=+11
+10.5Round 15🇵🇰 PAKISTAN55♥♦Q-1+12
+10.0Round 15🇵🇰 PAKISTAN145♥x♣A-1+11
+9.6Round 2🇫🇷 FRANCE226NT♥5-1+14
+9.6Round 16🇺🇸 USA2206♥♠Q=+0
+8.8Round 10🇺🇸 USA1205♠♦5-1+12
+8.0Round 3🇩🇰 DENMARK34♠♥A-2+11
+7.8Round 5🇧🇪 BELGIUM94♥♦K-1+10
+7.3Round 5🇧🇪 BELGIUM114♥♦K=+1
+6.6Round 7🇳🇴 NORWAY134♠♥T-1+12
+6.5Round 7🇳🇴 NORWAY26♥♦2=-11
+6.2Round 5🇧🇪 BELGIUM126♥♠K+1-11
+6.0Round 13🇿🇦 SOUTH AFRICA133NT♦6-3+16
+5.8Round 22🇨🇳 CHINA184♠♠4=-1
+4.9Round 9🇭🇺 HUNGARY15♥♠2-1+11
+4.9Round 10🇺🇸 USA1224♠♣2=-1
+4.3Round 13🇿🇦 SOUTH AFRICA12♠♥3-2+0
+4.2Round 15🇵🇰 PAKISTAN81NT♣5=+6
+4.1Round 10🇺🇸 USA1245♣♠A-1+5
+3.6Round 9🇭🇺 HUNGARY124♠♣J=+0
+3.3Round 2🇫🇷 FRANCE202NT♠6=+11
+3.3Round 22🇨🇳 CHINA202♣♦J+2+7
+3.2Round 20🇦🇺 AUSTRALIA164♥♣5-2+5
+3.1Round 7🇳🇴 NORWAY145♦x♣Q-1+0
+3.0Round 6🇦🇷 ARGENTINA233♦♥K=-9
+2.7Round 6🇦🇷 ARGENTINA172♥♣Q+2+2
+2.7Round 19🇭🇰 HONG KONG CHINA144♠♥A-1+4
+2.5Round 2🇫🇷 FRANCE253♠♠9=+1
+2.5Round 2🇫🇷 FRANCE282♠♦2=+0
+2.5Round 9🇭🇺 HUNGARY41♠♣8+1+5
+2.4Round 17🇹🇳 TUNISIA42NT♠5=+0
+2.3Round 2🇫🇷 FRANCE163NT♠T-3+6
+2.3Round 3🇩🇰 DENMARK72♥♦K+2+8
+2.1Round 6🇦🇷 ARGENTINA262♠♦7-1+5
+2.1Round 20🇦🇺 AUSTRALIA255♠♠4=+11
+2.0Round 9🇭🇺 HUNGARY64♠♣2=+0
+2.0Round 20🇦🇺 AUSTRALIA272♥♦Q+1+7
+1.9Round 5🇧🇪 BELGIUM34♠♦9=+0
+1.9Round 7🇳🇴 NORWAY122♥♣K+1+6
+1.8Round 6🇦🇷 ARGENTINA213NT♣2+1+1
+1.8Round 17🇹🇳 TUNISIA93NT♥6+3+11
+1.7Round 9🇭🇺 HUNGARY134♥♠8+1+0
+1.7Round 15🇵🇰 PAKISTAN126♠♦A=+0
+1.6Round 3🇩🇰 DENMARK53NT♣6=+2
+1.6Round 20🇦🇺 AUSTRALIA192♥♠A=-1
+1.5Round 13🇿🇦 SOUTH AFRICA103♥♥2+1+8
+1.4Round 3🇩🇰 DENMARK93♥♣3-1-2
+1.1Round 2🇫🇷 FRANCE184♥♠Q+2+13
+1.1Round 3🇩🇰 DENMARK44♥♠T+3+2
+1.1Round 3🇩🇰 DENMARK113♦♠K+1+7
+1.1Round 10🇺🇸 USA1274♣♥2-3-6
+1.1Round 20🇦🇺 AUSTRALIA213NT♠8+1+13
+1.0Round 5🇧🇪 BELGIUM54♥♣J+1+0
+1.0Round 17🇹🇳 TUNISIA62NT♥4+2+6
+1.0Round 19🇭🇰 HONG KONG CHINA94♠♥A-1+12
+1.0Round 20🇦🇺 AUSTRALIA224♥♦9+1+0
+0.9Round 5🇧🇪 BELGIUM64♠♣8+1+1
+0.8Round 22🇨🇳 CHINA214♠♥Q+1+0
+0.7Round 3🇩🇰 DENMARK103NT♣8+3+13
+0.7Round 5🇧🇪 BELGIUM133♥♦Q-1-1
+0.7Round 6🇦🇷 ARGENTINA154♥♦9-2-6
+0.7Round 9🇭🇺 HUNGARY82♣♥Q-1+2
+0.7Round 10🇺🇸 USA1164♠♥J+1+11
+0.7Round 17🇹🇳 TUNISIA14♥♣7=+0
+0.6Round 7🇳🇴 NORWAY71NT♣3+1+0
+0.6Round 17🇹🇳 TUNISIA24♠♣T+1+0
+0.5Round 19🇭🇰 HONG KONG CHINA135♠♥3=+0
+0.5Round 22🇨🇳 CHINA224♠♥K-1-8
+0.4Round 10🇺🇸 USA1263NT♥3+1+0
+0.4Round 13🇿🇦 SOUTH AFRICA56♠♦7=+0
+0.4Round 19🇭🇰 HONG KONG CHINA33♥♦2-4+9
+0.4Round 20🇦🇺 AUSTRALIA153♥♠A=+1
+0.2Round 3🇩🇰 DENMARK123♠♣T=-7
+0.1Round 19🇭🇰 HONG KONG CHINA125♣♠7=-11
+0.1Round 22🇨🇳 CHINA254♥♦A=-1
-0.0Round 2🇫🇷 FRANCE263NT♥5=+1
-0.0Round 5🇧🇪 BELGIUM23NT♣Q+3-11
-0.0Round 9🇭🇺 HUNGARY95♦♥4-2+0
-0.0Round 10🇺🇸 USA1182♦♥A=+6
-0.0Round 13🇿🇦 SOUTH AFRICA73NT♦3+2+0
-0.1Round 15🇵🇰 PAKISTAN31NT♠3-1-2
-0.1Round 15🇵🇰 PAKISTAN105♠♦4=+0
-0.2Round 5🇧🇪 BELGIUM104♠♠A=+0
-0.2Round 7🇳🇴 NORWAY13♦♣4=+0
-0.2Round 19🇭🇰 HONG KONG CHINA73♦♣K=-11
-0.3Round 5🇧🇪 BELGIUM72NT♥2=+0
-0.3Round 13🇿🇦 SOUTH AFRICA62♥♠Q+1+0
-0.3Round 15🇵🇰 PAKISTAN72♥♦2+2+10
-0.3Round 16🇺🇸 USA2184♥♠T-1+5
-0.3Round 20🇦🇺 AUSTRALIA203♦♠3-2-10
-0.3Round 22🇨🇳 CHINA283♥♣T-1-2
-0.4Round 15🇵🇰 PAKISTAN64♣♥8=-6
-0.4Round 16🇺🇸 USA2153♣♣7+1+0
-0.4Round 22🇨🇳 CHINA154♥♦8+1+0
-0.5Round 6🇦🇷 ARGENTINA253NT♠Q+1+0
-0.5Round 9🇭🇺 HUNGARY54♥♠K+2-11
-0.5Round 20🇦🇺 AUSTRALIA173NT♠4+3+11
-0.5Round 20🇦🇺 AUSTRALIA233NT♥7+2+0
-0.6Round 15🇵🇰 PAKISTAN14♥♠3=-1
-0.6Round 19🇭🇰 HONG KONG CHINA112♥♣5+1+0
-0.7Round 5🇧🇪 BELGIUM83♦♠8=-1
-0.7Round 17🇹🇳 TUNISIA33NT♠4=+0
-0.7Round 19🇭🇰 HONG KONG CHINA23NT♥3+2-1
-0.8Round 13🇿🇦 SOUTH AFRICA23NT♦8=-1
-0.8Round 22🇨🇳 CHINA193♠♥2-2+0
-0.8Round 22🇨🇳 CHINA271NT♣K+3-7
-0.9Round 2🇫🇷 FRANCE274♠♦4+1+0
-1.1Round 6🇦🇷 ARGENTINA243NT♥9+2-2
-1.1Round 7🇳🇴 NORWAY44♠♦9+1-13
-1.1Round 10🇺🇸 USA1172♦♥3+2+0
-1.2Round 9🇭🇺 HUNGARY32NT♠2+1-10
-1.2Round 17🇹🇳 TUNISIA132NT♦8=+0
-1.3Round 7🇳🇴 NORWAY82♥♦7-2+0
-1.3Round 13🇿🇦 SOUTH AFRICA84♥♠Q=+0
-1.3Round 16🇺🇸 USA2234♥♣J=-13
-1.4Round 2🇫🇷 FRANCE193NT♥7+4+10
-1.4Round 2🇫🇷 FRANCE231NT♣3+3-2
-1.4Round 7🇳🇴 NORWAY53NT♠J+1-1
-1.4Round 10🇺🇸 USA1282♠♣3+1+0
-1.5Round 22🇨🇳 CHINA241NT♣5+1-6
-1.6Round 7🇳🇴 NORWAY33NT♣2+2+0
-1.6Round 19🇭🇰 HONG KONG CHINA42♦♣9+3-15
-1.7Round 9🇭🇺 HUNGARY104♠♣K-3-3
-1.7Round 16🇺🇸 USA2263NT♠4=-10
-1.7Round 20🇦🇺 AUSTRALIA264♠♠9+1+0
-1.9Round 3🇩🇰 DENMARK142♠♦J+2+6
-1.9Round 7🇳🇴 NORWAY103NT♦9=+0
-1.9Round 20🇦🇺 AUSTRALIA283♦♣4-2+0
-2.0Round 2🇫🇷 FRANCE246♠x♦K-3-7
-2.1Round 6🇦🇷 ARGENTINA221NT♥2-1-5
-2.1Round 10🇺🇸 USA1155♥♦K=-8
-2.1Round 17🇹🇳 TUNISIA84♠♦A-2-5
-2.1Round 17🇹🇳 TUNISIA112♥♣4+1+0
-2.2Round 3🇩🇰 DENMARK22♠♣J+1-1
-2.2Round 3🇩🇰 DENMARK83NT♥T+1-1
-2.2Round 6🇦🇷 ARGENTINA204♠♣2+1-2
-2.2Round 10🇺🇸 USA1254♥♣Q+1+0
-2.2Round 16🇺🇸 USA2212♠♦A+1+0
-2.3Round 20🇦🇺 AUSTRALIA183♥♦K+1-9
-2.7Round 10🇺🇸 USA1194♠♥3=-11
-2.7Round 16🇺🇸 USA2194♠♦J+1-14
-2.7Round 19🇭🇰 HONG KONG CHINA82NT♥J-2-6
-2.8Round 2🇫🇷 FRANCE176NT♥9-1-14
-2.8Round 16🇺🇸 USA2243NT♥K-4-8
-2.9Round 5🇧🇪 BELGIUM42♠♣Q=+0
-3.0Round 17🇹🇳 TUNISIA124♠♥7-3-1
-3.3Round 16🇺🇸 USA2163♣♦K-1-5
-3.3Round 17🇹🇳 TUNISIA54♠♥5-2-6
-3.5Round 15🇵🇰 PAKISTAN132♦♥A+1+1
-3.5Round 19🇭🇰 HONG KONG CHINA53♠♣T-2-3
-3.6Round 15🇵🇰 PAKISTAN94♥♦9-1-6
-3.7Round 13🇿🇦 SOUTH AFRICA114♦♣A+2-13
-3.7Round 16🇺🇸 USA2174♥♣K=+0
-3.8Round 6🇦🇷 ARGENTINA183♦♣K-1-4
-3.9Round 6🇦🇷 ARGENTINA272♥♦K+1-2
-3.9Round 10🇺🇸 USA1232♦♣7+1-10
-4.2Round 13🇿🇦 SOUTH AFRICA143NT♣6+3-14
-4.4Round 6🇦🇷 ARGENTINA192NT♦T-4-7
-4.5Round 22🇨🇳 CHINA264♥♦K+1-4
-4.7Round 17🇹🇳 TUNISIA102♠♥T=-6
-5.0Round 6🇦🇷 ARGENTINA283NT♠3+2-1
-5.0Round 22🇨🇳 CHINA173NT♦6=+1
-5.1Round 7🇳🇴 NORWAY92♠♦2=-12
-5.2Round 7🇳🇴 NORWAY65♦♠3-1-6
-5.3Round 22🇨🇳 CHINA163♥x♠K-2+7
-5.6Round 3🇩🇰 DENMARK14♥♠T-1-10
-5.8Round 9🇭🇺 HUNGARY143NT♣T-2-11
-5.8Round 19🇭🇰 HONG KONG CHINA64♠♦K+1-8
-6.0Round 7🇳🇴 NORWAY114♠x♦T-2-9
-6.0Round 15🇵🇰 PAKISTAN24♥♦Q+1-4
-6.0Round 22🇨🇳 CHINA234♠♥6+1-11
-6.1Round 2🇫🇷 FRANCE212NT♥J-6+5
-6.3Round 15🇵🇰 PAKISTAN113NT♦4+1-4
-7.1Round 13🇿🇦 SOUTH AFRICA92♠♣4+1-12
-7.2Round 16🇺🇸 USA2254♥♣A=+0
-7.3Round 13🇿🇦 SOUTH AFRICA43♥♣T+1-10
-7.3Round 15🇵🇰 PAKISTAN44♥♣K-2-7
-7.8Round 20🇦🇺 AUSTRALIA243NT♥7-2-11
-8.1Round 16🇺🇸 USA2276NT♣J=+0
-8.3Round 17🇹🇳 TUNISIA143NT♥Q+1-7
-8.5Round 3🇩🇰 DENMARK133NT♦8+1-11
-8.5Round 9🇭🇺 HUNGARY73NT♠J-1-12
-8.8Round 13🇿🇦 SOUTH AFRICA32♥♣J+2-10
-8.9Round 2🇫🇷 FRANCE156♣♥K=+0
-8.9Round 10🇺🇸 USA1214♠♥2-1-10
-9.1Round 9🇭🇺 HUNGARY116♦♠2-2-11
-9.1Round 19🇭🇰 HONG KONG CHINA13NT♠9-2-11
-9.4Round 3🇩🇰 DENMARK63♦♣6-2-17
-9.5Round 17🇹🇳 TUNISIA73NT♣8=-10
-9.6Round 19🇭🇰 HONG KONG CHINA106♠♥2=+13
-10.0Round 16🇺🇸 USA2285♥♦5-1-12
-10.3Round 16🇺🇸 USA2224♥♠K-2-11
-10.6Round 5🇧🇪 BELGIUM145♦♦T+2-14
-11.7Round 6🇦🇷 ARGENTINA164♠♦Q=-11
-12.0Round 9🇭🇺 HUNGARY25♣♥A=-11