🇺🇸 ZHOU Arthur · USA2

22rank
+106.7Butler · 196 bds
+0.54per board
±4.8swing
+0.37vs par /bd · #43/111
+0.41adjusted /bd
Butler per round: -18 24.6 -5.9 -5.3 19.4 14.5 3.6 33.9 -14.9 9.5 -1.5 33.6 -2.7 15.9by round

vs par split: bidding +0.27 · play +0.10

Strength of schedule: opponents averaged -0.14/bd (an easy draw) → opponent-adjusted +0.41/bd

Card play — on target: opening leads 72.7% #89 of 111 · declarer play 74.6% #51 of 111 · defence 78.8% #73 of 111

Bidding activity — not a pass: 44.4% #38 of 111 (241/543)

Card play by contract type — on target
vs NTvs a suit
Opening leads75.0% (16)71.4% (28)
Declarer play84.2% (19)70.0% (40)
Defence70.6% (34)82.9% (70)

Opening leads by suit led: ♠ 77.8% (9) · ♥ 66.7% (12) · ♦ 80.0% (15) · ♣ 62.5% (8)

vs par by strain: NT +0.73 (63) · a suit +0.20 (133)

vs par by level: part-score +0.00 (69) · game +0.67 (111) · slam -0.12 (16)

By role: declaring +1.11/bd (-1.76 vs par · 92) · defending +0.05/bd (+2.25 vs par · 104)

By vulnerability: vulnerable +0.94/bd (+0.60 vs par · 98) · not vulnerable +0.15/bd (+0.13 vs par · 98)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1M.HuB.Zhu – H.LubaOpen14-18.0-1.29-0.29
Round 2M.HuA.Dravitzki – L.MeierClosed14+24.6+1.76+0.93
Round 4M.HuK.Kuflowski – W.OkrzesikClosed14-5.9-0.42+1.00
Round 5M.HuLUKE - PAREDI Jack – G.BartleyClosed14-5.3-0.38-0.36
Round 6M.HuQ.Chen – G.LiuOpen14+19.4+1.39+1.57
Round 8M.HuJ.Chiang – D.KoClosed14+14.5+1.04-0.21
Round 10M.HuY.Inoue – K.TakizawaClosed14+3.6+0.26+1.14
Round 11M.HuJ.Tioh – R.SiewOpen14+33.9+2.42-0.21
Round 12M.HuE.Vallet – R.BlochOpen14-14.9-1.06-1.64
Round 13M.HuJ.Fegarty – L.FegartyClosed14+9.5+0.68+1.14
Round 15M.HuW.Klarenbeek – M.GoorClosed14-1.5-0.11-2.14
Round 16M.HuP.Kingston – D.HoyneOpen14+33.6+2.40+2.43
Round 17M.HuC.Lahrmann – A.Rolf-LarsenClosed14-2.7-0.19-1.29
Round 19M.HuS.Ridou – B.DoerdelmannClosed14+15.9+1.14+3.07

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
+12.1Round 8🇭🇰 HONG KONG CHINA242♥x♥J-4+9
+11.6Round 16🇮🇪 IRELAND234♥♦7+2+17
+11.2Round 12🇫🇷 FRANCE286♥♣7=+13
+11.1Round 10🇯🇵 JAPAN276♣♠9=+0
+10.7Round 11🇸🇬 SINGAPORE134♠♣7=+10
+10.5Round 10🇯🇵 JAPAN254♥♣6-1+10
+10.5Round 17🇩🇰 DENMARK146♥x♣T+1+13
+10.3Round 16🇮🇪 IRELAND165♦♦4-1+10
+10.0Round 15🇳🇱 NETHERLANDS44♥x♠4-2+9
+9.7Round 4🇵🇱 POLAND263NT♠2+2+11
+9.4Round 11🇸🇬 SINGAPORE86♥♣A-1+10
+9.3Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND53NT♥5=+7
+9.3Round 16🇮🇪 IRELAND245♥♦7-2+11
+9.2Round 2🇳🇿 NEW ZEALAND156♠♣9=-13
+8.6Round 19🇩🇪 GERMANY53NT♣3=+10
+8.5Round 19🇩🇪 GERMANY84♥♦8-1+5
+8.4Round 6🇨🇦 CANADA186♥♦A-1+13
+8.3Round 15🇳🇱 NETHERLANDS74♠♣6=+10
+8.1Round 6🇨🇦 CANADA235♦x♠A-2+12
+7.9Round 2🇳🇿 NEW ZEALAND252♠x♥5-3-3
+7.9Round 6🇨🇦 CANADA223NT♦8-1+10
+7.7Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND113NT♦7+1+0
+7.7Round 16🇮🇪 IRELAND173NT♣2+1+1
+7.6Round 2🇳🇿 NEW ZEALAND193NT♠A=+6
+6.7Round 8🇭🇰 HONG KONG CHINA184♥♣4=+8
+5.5Round 8🇭🇰 HONG KONG CHINA254♣♦J-2-6
+5.3Round 11🇸🇬 SINGAPORE63NT♠J+2+2
+5.2Round 19🇩🇪 GERMANY93♥♣K-2+3
+4.8Round 16🇮🇪 IRELAND264♥♦6=+0
+4.6Round 15🇳🇱 NETHERLANDS115♣♥J=-11
+4.5Round 17🇩🇰 DENMARK73NT♥T+1-1
+4.4Round 2🇳🇿 NEW ZEALAND183♦♣T+3+13
+4.4Round 6🇨🇦 CANADA166♠♠2=-13
+4.4Round 6🇨🇦 CANADA283NT♥T-1+6
+4.0Round 4🇵🇱 POLAND272NT♥7-2+6
+3.9Round 8🇭🇰 HONG KONG CHINA283♥♣K-1+5
+3.9Round 11🇸🇬 SINGAPORE73NT♣2+2+2
+3.8Round 1🇺🇸 USA1144♠♣J=+0
+3.8Round 6🇨🇦 CANADA174♠♥A+1+1
+3.6Round 1🇺🇸 USA133NT♦4+2-12
+3.6Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND96NT♦4=+11
+3.4Round 1🇺🇸 USA171NT♠3-1+0
+3.2Round 2🇳🇿 NEW ZEALAND213♥♣K-1-2
+3.2Round 5🇦🇺 AUSTRALIA32♣♠A+2+6
+3.2Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND22NT♦2+1-6
+3.2Round 15🇳🇱 NETHERLANDS144♥♥A=-1
+3.2Round 19🇩🇪 GERMANY106♦♥9-1+13
+3.0Round 16🇮🇪 IRELAND284♠♥2=+0
+2.9Round 2🇳🇿 NEW ZEALAND274♠♥4=+0
+2.9Round 11🇸🇬 SINGAPORE124♥♠A+1-13
+2.8Round 10🇯🇵 JAPAN204♥♠A-1+9
+2.7Round 16🇮🇪 IRELAND193♠♦Q=+7
+2.7Round 19🇩🇪 GERMANY74♦♥A=+0
+2.6Round 11🇸🇬 SINGAPORE52♠♥J+1-4
+2.5Round 4🇵🇱 POLAND213♣♦K+1+6
+2.5Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND72♠♦2+1+0
+2.5Round 19🇩🇪 GERMANY142♠♥K-1+4
+2.4Round 8🇭🇰 HONG KONG CHINA154♠♣A+1+0
+2.3Round 5🇦🇺 AUSTRALIA23NT♠Q-1+5
+2.2Round 5🇦🇺 AUSTRALIA81NT♦A-1-1
+2.2Round 11🇸🇬 SINGAPORE24♠♣K-1-2
+2.1Round 5🇦🇺 AUSTRALIA143NT♠6+1+1
+2.1Round 8🇭🇰 HONG KONG CHINA214♠♣A=+3
+2.1Round 10🇯🇵 JAPAN285♥♠K-1+5
+2.1Round 15🇳🇱 NETHERLANDS102NT♥K+2-9
+2.0Round 11🇸🇬 SINGAPORE113♥♦8-1+6
+1.8Round 17🇩🇰 DENMARK134♥♦K+1+0
+1.8Round 19🇩🇪 GERMANY44♠♦8+1+0
+1.7Round 15🇳🇱 NETHERLANDS93NT♦9=-2
+1.6Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND124♣x♦A-1+8
+1.6Round 17🇩🇰 DENMARK32NT♠5+1+1
+1.4Round 1🇺🇸 USA114♠♥8+1+0
+1.4Round 2🇳🇿 NEW ZEALAND234♥♣K+2+13
+1.4Round 5🇦🇺 AUSTRALIA13NT♥A=+0
+1.4Round 12🇫🇷 FRANCE174♠♦5+1+1
+1.3Round 2🇳🇿 NEW ZEALAND284♠♦7+2-13
+1.3Round 12🇫🇷 FRANCE184♣♥T+1+6
+1.3Round 16🇮🇪 IRELAND214♠♣5+3+2
+1.2Round 10🇯🇵 JAPAN261NT♣7-1+0
+1.1Round 2🇳🇿 NEW ZEALAND172♥♠J-1-1
+1.1Round 5🇦🇺 AUSTRALIA133NT♦7+3+13
+1.1Round 11🇸🇬 SINGAPORE92♠♥7-2+1
+1.0Round 19🇩🇪 GERMANY33♦♠3=+1
+0.9Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND134♠♣2=+1
+0.9Round 15🇳🇱 NETHERLANDS125♦♠2=-11
+0.9Round 17🇩🇰 DENMARK64♠♣J+1+4
+0.8Round 8🇭🇰 HONG KONG CHINA261NT♥J+3+9
+0.7Round 1🇺🇸 USA161NT♠5+1+7
+0.7Round 6🇨🇦 CANADA273NT♥9+1+1
+0.7Round 17🇩🇰 DENMARK103NT♥6+1+0
+0.6Round 2🇳🇿 NEW ZEALAND243NT♠T+2+0
+0.6Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND61NT♣T+1+0
+0.5Round 4🇵🇱 POLAND243♠♣K=+7
+0.4Round 6🇨🇦 CANADA261NT♠3=-1
+0.4Round 15🇳🇱 NETHERLANDS83♥♦Q-1+2
+0.4Round 19🇩🇪 GERMANY23♦♣T=+0
+0.2Round 1🇺🇸 USA145♠♣K=+0
+0.2Round 1🇺🇸 USA196♦x♣J-3+5
+0.2Round 1🇺🇸 USA1112♥x♥K-1+0
+0.2Round 4🇵🇱 POLAND164♠♦2=+1
+0.2Round 4🇵🇱 POLAND185♠♣9=+0
+0.2Round 5🇦🇺 AUSTRALIA123♠♥9-1-5
+0.1Round 2🇳🇿 NEW ZEALAND163NT♠3+4+15
+0.1Round 4🇵🇱 POLAND203NT♠Q+1+0
+0.1Round 12🇫🇷 FRANCE204♥♠A+1+0
+0.1Round 17🇩🇰 DENMARK123NT♠4=-1
-0.1Round 5🇦🇺 AUSTRALIA104♠♣T-1-12
-0.1Round 8🇭🇰 HONG KONG CHINA174♥♠2+1+0
-0.1Round 15🇳🇱 NETHERLANDS14♠♣T+1+0
-0.2Round 16🇮🇪 IRELAND152♣♠A+1-1
-0.4Round 4🇵🇱 POLAND283♥♠4=+0
-0.4Round 11🇸🇬 SINGAPORE42NT♦J+1+0
-0.4Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND142♥♦4=+0
-0.4Round 16🇮🇪 IRELAND203NT♦3+2+0
-0.5Round 11🇸🇬 SINGAPORE34♥♣A=-1
-0.6Round 6🇨🇦 CANADA253♣♠A-1-2
-0.6Round 8🇭🇰 HONG KONG CHINA203NT♥5-2-8
-0.6Round 10🇯🇵 JAPAN244♠♥A+2+11
-0.7Round 8🇭🇰 HONG KONG CHINA221NT♥6=+1
-0.7Round 10🇯🇵 JAPAN233NT♣6+1-1
-0.7Round 12🇫🇷 FRANCE232♣♥K-1+0
-0.8Round 5🇦🇺 AUSTRALIA42♥♥A+1+0
-0.8Round 10🇯🇵 JAPAN154♥♣5-1-5
-0.8Round 10🇯🇵 JAPAN192♠♣3+1+0
-0.8Round 15🇳🇱 NETHERLANDS64♠♥K+2+14
-0.8Round 19🇩🇪 GERMANY133♠♥2+2+9
-0.9Round 10🇯🇵 JAPAN164♥♣8-2-2
-0.9Round 12🇫🇷 FRANCE241NT♥5=+1
-0.9Round 17🇩🇰 DENMARK93NT♠5-1-5
-1.1Round 11🇸🇬 SINGAPORE144♦x♥A-2-4
-1.2Round 17🇩🇰 DENMARK55♣♠4-1-8
-1.3Round 2🇳🇿 NEW ZEALAND263NT♦K+1-4
-1.3Round 19🇩🇪 GERMANY62NT♠2+2+9
-1.4Round 1🇺🇸 USA184♠♦A-1+2
-1.4Round 6🇨🇦 CANADA154♠♥A=-1
-1.4Round 11🇸🇬 SINGAPORE103♠♣J+3-9
-1.4Round 12🇫🇷 FRANCE262♥♦6-1-11
-1.5Round 5🇦🇺 AUSTRALIA54♠♦A=+0
-1.5Round 17🇩🇰 DENMARK113♥♣4=+0
-1.7Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND85♠♦K+2+10
-1.8Round 8🇭🇰 HONG KONG CHINA162♠♦5=+0
-1.9Round 4🇵🇱 POLAND224♠♣4+1+0
-2.0Round 8🇭🇰 HONG KONG CHINA274♥♠6+2-1
-2.1Round 8🇭🇰 HONG KONG CHINA232♠♦T=-6
-2.2Round 4🇵🇱 POLAND234♠♦T=+13
-2.2Round 5🇦🇺 AUSTRALIA71NT♦A-1+1
-2.2Round 6🇨🇦 CANADA194♥♠A+1+0
-2.2Round 12🇫🇷 FRANCE214♠♦8=+1
-2.4Round 10🇯🇵 JAPAN222♦♣A-1+0
-2.4Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND12♥♦A+1-2
-2.5Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND43NT♠J+2+0
-2.5Round 17🇩🇰 DENMARK83NT♠5+1-4
-2.6Round 1🇺🇸 USA1105♦x♠Q-1-8
-2.6Round 12🇫🇷 FRANCE223♠♥4-1-10
-2.7Round 15🇳🇱 NETHERLANDS24♣♥6-1-5
-2.8Round 5🇦🇺 AUSTRALIA64♥♣7-1-5
-2.8Round 6🇨🇦 CANADA241NT♦4=+1
-2.8Round 10🇯🇵 JAPAN183♠x♦Q-1+1
-2.8Round 11🇸🇬 SINGAPORE13NT♦3+2-1
-2.8Round 16🇮🇪 IRELAND224♠♦6-1-5
-2.8Round 16🇮🇪 IRELAND273NT♥T+2+0
-3.1Round 19🇩🇪 GERMANY125♦x♠A-2-2
-3.2Round 4🇵🇱 POLAND194♦♣A-1-2
-3.2Round 10🇯🇵 JAPAN173NT♦7=+1
-3.3Round 6🇨🇦 CANADA214♥♠6-1-5
-3.4Round 17🇩🇰 DENMARK24♥x♥6-1-6
-3.7Round 12🇫🇷 FRANCE253NT♣2=-10
-3.8Round 2🇳🇿 NEW ZEALAND203♠♥4-2-8
-3.8Round 4🇵🇱 POLAND154♠♦9-1-10
-3.8Round 16🇮🇪 IRELAND253♣♥J+1+0
-3.9Round 19🇩🇪 GERMANY14♠♥Q+3-2
-4.0Round 1🇺🇸 USA124♠x♥A-4+12
-4.0Round 12🇫🇷 FRANCE277NT♥T=+0
-4.1Round 12🇫🇷 FRANCE153NT♠5-2-3
-4.3Round 5🇦🇺 AUSTRALIA113NT♣Q+2-1
-4.4Round 17🇩🇰 DENMARK42NT♥6=-5
-4.5Round 12🇫🇷 FRANCE166NT♠3+1-11
-4.7Round 4🇵🇱 POLAND174♠♣K-2-11
-4.8Round 12🇫🇷 FRANCE192♠♦J+1+0
-5.4Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND33NT♠2=+1
-5.9Round 1🇺🇸 USA1124♠♦K+1-1
-5.9Round 15🇳🇱 NETHERLANDS54♠♦Q+1+0
-6.1Round 5🇦🇺 AUSTRALIA95♥x♣A-1-7
-6.9Round 4🇵🇱 POLAND254♠♦5=-7
-7.1Round 16🇮🇪 IRELAND183NT♥5+1-8
-7.5Round 13🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND104♠♦6-3-14
-8.4Round 1🇺🇸 USA153NT♠5+1-1
-8.4Round 6🇨🇦 CANADA206NT♠7=+0
-8.9Round 17🇩🇰 DENMARK14♣x♦9+2-6
-8.9Round 19🇩🇪 GERMANY114♠♥K+1-7
-9.2Round 1🇺🇸 USA1132NTx♠9-2-8
-10.0Round 2🇳🇿 NEW ZEALAND224NT♠Q=+10
-10.4Round 15🇳🇱 NETHERLANDS36♠♥J-1-13
-11.7Round 8🇭🇰 HONG KONG CHINA197♣♦J-1-17
-11.9Round 10🇯🇵 JAPAN213♥x♠J=-13
-12.8Round 15🇳🇱 NETHERLANDS136♥♦3-1-13