🇭🇰 CHENG Aaron Shiu Cheong · CHINA HONG KONG

79rank
-33.5Butler · 224 bds
-0.15per board
±4.7swing
-0.55vs par /bd · #112/129
-0.17adjusted /bd
Butler per round: -2.1 22.5 -1.1 -12.2 25.8 11.4 -32.7 -31.3 4.7 3.6 -2.8 14.2 -2.3 -31.2by round

vs par split: bidding -0.35 · play -0.21

Strength of schedule: opponents averaged -0.02/bd (an average draw) → opponent-adjusted -0.17/bd

Card play — on target: opening leads 73.2% #109 of 129 · declarer play 86.5% #4 of 129 · defence 79.4% #126 of 129

Card play by contract type — on target
vs NTvs a suit
Opening leads66.7% (12)75.0% (44)
Declarer play88.9% (9)86.0% (43)
Defence75.0% (24)80.8% (78)

Opening leads by suit led: ♠ 60.0% (10) · ♥ 85.7% (21) · ♦ 66.7% (15) · ♣ 70.0% (10)

vs par by strain: NT +0.11 (53) · a suit -0.78 (166)

vs par by level: part-score -0.70 (78) · game -0.47 (123) · slam -0.56 (18)

By role: declaring +0.51/bd (-1.98 vs par · 119) · defending -0.90/bd (+1.07 vs par · 105)

By vulnerability: vulnerable +0.12/bd (-0.79 vs par · 112) · not vulnerable -0.41/bd (-0.31 vs par · 112)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1V.LiP.Piganeau – F.LeenhardtOpen16-2.1-0.13-3.25
Round 3V.LiD.Evennett – J.McleodOpen16+22.5+1.41-1.62
Round 4V.LiA.Yamada – K.OhnoClosed16-1.1-0.07-0.81
Round 6V.LiG.Jorgensen – T.BergClosed16-12.2-0.76+0.12
Round 8V.LiF.Cysneiros – G.MelloOpen16+25.8+1.61+0.31
Round 9V.LiN.Doremans – J.TrouwborstOpen16+11.4+0.71+1.75
Round 10V.LiA.Ruia – A.SequeiraClosed16-32.7-2.04-1.12
Round 11V.LiW.Haughie – R.KlingerClosed16-31.3-1.96-1.56
Round 13V.LiF.Cedolin – F.CaviezelClosed16+4.7+0.29+0.69
Round 14V.LiW.Wattar – M.KamelOpen16+3.6+0.23-0.06
Round 16V.LiA.Madala – C.De MiguelClosed16-2.8-0.17-0.06
Round 17V.LiJ.Schermer – N.ChambersClosed16+14.2+0.89+0.62
Round 19V.LiD.Tuerah – A.DjajanegaraClosed16-2.3-0.14+0.06
Round 20V.LiG.Gramatikov – D.PetkanovClosed16-31.2-1.95-2.75

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
+13.2Round 20🇧🇬 BULGARIA285♣♠J=+13
+12.6Round 8🇧🇷 BRAZIL174♠x♣J-4+12
+12.3Round 19🇮🇩 INDONESIA56♥x♠A=+13
+12.0Round 1🇫🇷 FRANCE101NTxx♥K-2+9
+11.2Round 17🇺🇸 USA 2134♠x♣A=+11
+9.8Round 3🇳🇿 NEW ZEALAND163♥♣K-1+10
+9.8Round 13🇮🇹 ITALY95♣x♠K=+9
+9.3Round 9🇳🇱 NETHERLANDS163NT♠A=+7
+9.2Round 8🇧🇷 BRAZIL284♦x♠J-3+8
+8.7Round 9🇳🇱 NETHERLANDS73NT♥10-2+8
+8.2Round 8🇧🇷 BRAZIL314♥x♦A-2+9
+7.0Round 8🇧🇷 BRAZIL204♥♠6=+0
+6.8Round 3🇳🇿 NEW ZEALAND74♠♣A-3+10
+6.5Round 10🇮🇳 INDIA244♠♠6=+7
+6.5Round 17🇺🇸 USA 2166NT♦Q=+0
+6.3Round 8🇧🇷 BRAZIL184♦♦3+1+7
+6.1Round 20🇧🇬 BULGARIA244♠♦J-1+10
+5.8Round 4🇯🇵 JAPAN276♠♥9=+0
+5.7Round 1🇫🇷 FRANCE46♦♠6=+0
+5.5Round 11🇦🇺 AUSTRALIA16♣♠A=+10
+5.2Round 4🇯🇵 JAPAN324♠♥4-1+12
+5.1Round 6🇩🇰 DENMARK204♠♦A-3+9
+5.1Round 10🇮🇳 INDIA314♥♥4=+0
+5.1Round 13🇮🇹 ITALY23♠♦K-2+0
+5.0Round 3🇳🇿 NEW ZEALAND132♥♠J+1+0
+4.9Round 3🇳🇿 NEW ZEALAND113♥♠7=+6
+4.8Round 4🇯🇵 JAPAN304♠♥A+1+1
+4.7Round 8🇧🇷 BRAZIL253NT♣3=+0
+4.6Round 4🇯🇵 JAPAN234♥♠Q-1+6
+4.4Round 9🇳🇱 NETHERLANDS112♠♦2+2+6
+4.3Round 10🇮🇳 INDIA204♠♦10-1-3
+4.3Round 16🇦🇷 ARGENTINA266♠♥J=+0
+4.2Round 13🇮🇹 ITALY56NT♥10+1+12
+4.0Round 3🇳🇿 NEW ZEALAND23♠♦3=+1
+4.0Round 10🇮🇳 INDIA303NT♣4=+3
+4.0Round 16🇦🇷 ARGENTINA176♥♦5=-11
+3.8Round 8🇧🇷 BRAZIL276♥♦K+1-11
+3.5Round 14🇪🇬 EGYPT262NT♥A-1+5
+3.4Round 19🇮🇩 INDONESIA76♣♠4=+0
+3.3Round 9🇳🇱 NETHERLANDS122♠♣J+1-8
+3.3Round 17🇺🇸 USA 262♥♥J+2+1
+3.3Round 17🇺🇸 USA 293NT♥10=-1
+3.2Round 9🇳🇱 NETHERLANDS135♥♦5=+4
+3.2Round 16🇦🇷 ARGENTINA251NT♣K=+5
+3.1Round 8🇧🇷 BRAZIL211NT♥4=+5
+3.1Round 19🇮🇩 INDONESIA141N♥9=-1
+3.0Round 3🇳🇿 NEW ZEALAND56NT♦9+1-13
+3.0Round 14🇪🇬 EGYPT294♠♥10+1+0
+3.0Round 16🇦🇷 ARGENTINA234♠♥A-1+6
+2.9Round 14🇪🇬 EGYPT323♣♥J-2-6
+2.8Round 17🇺🇸 USA 272♣♦4+1-1
+2.7Round 1🇫🇷 FRANCE133NT♥5+2-13
+2.7Round 4🇯🇵 JAPAN195♠♥4+1+9
+2.6Round 14🇪🇬 EGYPT281NT♥K+2+1
+2.5Round 13🇮🇹 ITALY124♠♠2=-1
+2.5Round 14🇪🇬 EGYPT252♣♦6=+5
+2.5Round 16🇦🇷 ARGENTINA212♠♥K+1+11
+2.4Round 20🇧🇬 BULGARIA203♠♠J=+0
+2.3Round 1🇫🇷 FRANCE53NT♠4+1+0
+2.3Round 13🇮🇹 ITALY142♠♥10=+5
+2.2Round 6🇩🇰 DENMARK252♠♣K+3+2
+2.2Round 11🇦🇺 AUSTRALIA64♠♦Q=+7
+2.1Round 20🇧🇬 BULGARIA324♥x♣5-1-5
+2.0Round 14🇪🇬 EGYPT204♥♦10+1+0
+1.9Round 13🇮🇹 ITALY133NT♥K-1+12
+1.8Round 3🇳🇿 NEW ZEALAND141NT♠10+2+1
+1.7Round 1🇫🇷 FRANCE122♦♠9-2+0
+1.7Round 17🇺🇸 USA 2123NT♥K-1+10
+1.6Round 1🇫🇷 FRANCE164♠♥4=-9
+1.5Round 13🇮🇹 ITALY154♠♦A=+0
+1.5Round 16🇦🇷 ARGENTINA274♥♦6-1+5
+1.4Round 9🇳🇱 NETHERLANDS64♥♠6+1+13
+1.4Round 10🇮🇳 INDIA192♠♥4=+0
+1.3Round 1🇫🇷 FRANCE24♠♣J+2+5
+1.3Round 1🇫🇷 FRANCE113NT♠5+1+1
+1.3Round 17🇺🇸 USA 221NT♥6=+0
+1.3Round 19🇮🇩 INDONESIA116♠♥K+1+11
+1.2Round 1🇫🇷 FRANCE143NT♠10+2+10
+1.2Round 6🇩🇰 DENMARK315♠♥9=+8
+1.2Round 19🇮🇩 INDONESIA102♠♥T+1+0
+1.1Round 11🇦🇺 AUSTRALIA32♠♣A+2+8
+1.1Round 13🇮🇹 ITALY33♦♣J+1+1
+1.0Round 3🇳🇿 NEW ZEALAND14♠♥J-1+2
+1.0Round 17🇺🇸 USA 283NT♥7+1+10
+0.9Round 10🇮🇳 INDIA184♠♥J=+0
+0.9Round 11🇦🇺 AUSTRALIA74♥♠A+2+1
+0.8Round 4🇯🇵 JAPAN183♥♠J+1+6
+0.8Round 6🇩🇰 DENMARK263NT♥J+2+13
+0.7Round 3🇳🇿 NEW ZEALAND123NT♥5=+0
+0.7Round 8🇧🇷 BRAZIL293♥♦8-1+0
+0.7Round 9🇳🇱 NETHERLANDS153NT♠6+2+0
+0.7Round 14🇪🇬 EGYPT274♥♦A-1+4
+0.6Round 10🇮🇳 INDIA283♥♦A+1-8
+0.6Round 14🇪🇬 EGYPT174♠♥2+2+11
+0.6Round 16🇦🇷 ARGENTINA223NT♦6=+13
+0.6Round 19🇮🇩 INDONESIA34♠♥3+2-11
+0.6Round 20🇧🇬 BULGARIA195♦♣7=-1
+0.5Round 3🇳🇿 NEW ZEALAND94♠♦6=+0
+0.5Round 4🇯🇵 JAPAN294♠♥Q+2-13
+0.5Round 9🇳🇱 NETHERLANDS13♣♠10=+0
+0.5Round 11🇦🇺 AUSTRALIA112♣x♦J-1-1
+0.5Round 13🇮🇹 ITALY102♣♦A+2-10
+0.4Round 9🇳🇱 NETHERLANDS43♠♣2-1+0
+0.4Round 19🇮🇩 INDONESIA134♥♠3=-1
+0.3Round 1🇫🇷 FRANCE71NT♣2+2-10
+0.3Round 19🇮🇩 INDONESIA151N♦5+2+2
+0.2Round 4🇯🇵 JAPAN173NT♦7+2-11
+0.2Round 6🇩🇰 DENMARK194♠♣4=-1
+0.2Round 6🇩🇰 DENMARK222♥♦Q=+1
+0.2Round 16🇦🇷 ARGENTINA202♥♦K-1-11
+0.1Round 3🇳🇿 NEW ZEALAND33♠♣2-1-1
+0.1Round 16🇦🇷 ARGENTINA194♠♣4=-1
+0.1Round 17🇺🇸 USA 232♦♦Q-1-4
-0.0Round 4🇯🇵 JAPAN313NT♥3+1+0
+0.0Round 6🇩🇰 DENMARK325♦♣A+2-11
+0.0Round 10🇮🇳 INDIA273NT♥7+1+0
+0.0Round 13🇮🇹 ITALY164♠♣10+1+0
-0.0Round 19🇮🇩 INDONESIA24♣♠Q-2-2
-0.1Round 16🇦🇷 ARGENTINA324♠♦J+1+0
-0.2Round 11🇦🇺 AUSTRALIA122♥♠Q+1+0
-0.2Round 14🇪🇬 EGYPT305♠♦A=+0
-0.3Round 4🇯🇵 JAPAN244♠♦2+1+0
-0.3Round 6🇩🇰 DENMARK236♠♦4=+0
-0.3Round 6🇩🇰 DENMARK294♠♥5+1-10
-0.3Round 11🇦🇺 AUSTRALIA93NT♦Q+2-11
-0.3Round 14🇪🇬 EGYPT214♥♦5=+0
-0.3Round 20🇧🇬 BULGARIA291NT♥3+1+0
-0.4Round 8🇧🇷 BRAZIL224♥♥2+1+0
-0.5Round 6🇩🇰 DENMARK185♦♣J=-2
-0.6Round 14🇪🇬 EGYPT232♠♦J-1+1
-0.7Round 13🇮🇹 ITALY13NT♦2+2+0
-0.8Round 9🇳🇱 NETHERLANDS24♠♠2=+0
-0.8Round 19🇮🇩 INDONESIA13♦♣K+2-2
-0.8Round 19🇮🇩 INDONESIA162♥♠J=+9
-0.9Round 14🇪🇬 EGYPT182♠♦J+1+0
-1.0Round 4🇯🇵 JAPAN226♠x♣Q-3+7
-1.0Round 13🇮🇹 ITALY61♠♥10+2-1
-1.0Round 14🇪🇬 EGYPT314♥♠9=+0
-1.0Round 17🇺🇸 USA 2143♣♠2-1+1
-1.0Round 20🇧🇬 BULGARIA213NT♠Q+1-1
-1.2Round 11🇦🇺 AUSTRALIA154♥♣Q=+1
-1.2Round 16🇦🇷 ARGENTINA285♣♠A=+0
-1.2Round 20🇧🇬 BULGARIA303♣♠10+1+0
-1.3Round 9🇳🇱 NETHERLANDS142♥♦2+2-1
-1.6Round 1🇫🇷 FRANCE154NT♥2+2-1
-1.6Round 6🇩🇰 DENMARK273NT♦Q+2+11
-1.6Round 9🇳🇱 NETHERLANDS85♣♦5=+2
-1.6Round 17🇺🇸 USA 214♠x♥A-3-2
-1.8Round 4🇯🇵 JAPAN262♠♥7+1+0
-1.9Round 6🇩🇰 DENMARK242♠♠8=-5
-1.9Round 17🇺🇸 USA 2152♠♠5=-1
-1.9Round 20🇧🇬 BULGARIA252♥♣A-2-1
-2.0Round 6🇩🇰 DENMARK302NT♣10+2+3
-2.0Round 16🇦🇷 ARGENTINA243♠♣A-1-4
-2.1Round 3🇳🇿 NEW ZEALAND104♥♦Q-2-8
-2.1Round 16🇦🇷 ARGENTINA314♠♦J+3-2
-2.2Round 1🇫🇷 FRANCE13♥♣Q=-7
-2.2Round 3🇳🇿 NEW ZEALAND153NT♦7+1+0
-2.2Round 16🇦🇷 ARGENTINA292♠♦10-1-5
-2.4Round 6🇩🇰 DENMARK173NT♥A-1-5
-2.4Round 19🇮🇩 INDONESIA61N♠9+2-1
-2.5Round 8🇧🇷 BRAZIL304♣♠J=+0
-2.6Round 9🇳🇱 NETHERLANDS33NT♠Q=+1
-2.7Round 10🇮🇳 INDIA215♦♥Q=+0
-2.8Round 1🇫🇷 FRANCE94♠♣6+1-11
-2.8Round 8🇧🇷 BRAZIL234♥♥3+1+0
-2.8Round 8🇧🇷 BRAZIL244♥♥3=+0
-2.8Round 8🇧🇷 BRAZIL263♦♣9+1-1
-2.8Round 13🇮🇹 ITALY42♣♠K-1+0
-2.8Round 17🇺🇸 USA 254♠♥8+1+0
-2.8Round 17🇺🇸 USA 2103♥♦J=-6
-2.9Round 14🇪🇬 EGYPT243NTx♠6-1-5
-3.0Round 10🇮🇳 INDIA293NT♦7=+1
-3.0Round 14🇪🇬 EGYPT224♥♦4-2-6
-3.0Round 17🇺🇸 USA 244♥♦J+1-4
-3.1Round 13🇮🇹 ITALY113NT♠5+2-2
-3.2Round 3🇳🇿 NEW ZEALAND45♣♦7+1-13
-3.2Round 11🇦🇺 AUSTRALIA163NT♣J+2-11
-3.4Round 20🇧🇬 BULGARIA175♦♠5=+0
-3.5Round 9🇳🇱 NETHERLANDS103NT♦3+3-13
-3.6Round 3🇳🇿 NEW ZEALAND64♠♥Q=-10
-3.7Round 6🇩🇰 DENMARK213♦♥K+1+0
-3.9Round 8🇧🇷 BRAZIL322♠♥9-1-8
-3.9Round 17🇺🇸 USA 2114♦♠K+1-4
-3.9Round 19🇮🇩 INDONESIA82♠♠A=-11
-4.0Round 3🇳🇿 NEW ZEALAND85♥♦Q+1-11
-4.0Round 11🇦🇺 AUSTRALIA142♠♥K+1-1
-4.0Round 16🇦🇷 ARGENTINA182NT♥J-3-9
-4.0Round 19🇮🇩 INDONESIA43N♥9=+0
-4.4Round 11🇦🇺 AUSTRALIA134♠♦6-1+0
-4.6Round 11🇦🇺 AUSTRALIA53NT♥10-1-5
-4.6Round 20🇧🇬 BULGARIA234♥♠5=-3
-4.7Round 4🇯🇵 JAPAN212♠♣J-2-7
-4.9Round 20🇧🇬 BULGARIA224♠♣8=-10
-5.0Round 4🇯🇵 JAPAN202♥♠A+3-10
-5.0Round 4🇯🇵 JAPAN253NT♥6-2-5
-5.0Round 9🇳🇱 NETHERLANDS51NT♦5+1-1
-5.0Round 11🇦🇺 AUSTRALIA42♦♣9-1-6
-5.2Round 19🇮🇩 INDONESIA93N♠8+1+0
-5.3Round 13🇮🇹 ITALY86♥♦Q+1-1
-5.3Round 14🇪🇬 EGYPT194♥♥3-2-11
-5.4Round 20🇧🇬 BULGARIA313NT♠8-3-9
-5.6Round 11🇦🇺 AUSTRALIA104♠♦6-1-6
-5.7Round 9🇳🇱 NETHERLANDS93♠♦2=+10
-5.9Round 10🇮🇳 INDIA254♥♣3=-3
-6.0Round 1🇫🇷 FRANCE34♠♥10=-10
-6.0Round 10🇮🇳 INDIA225♦x♥4=+8
-6.2Round 10🇮🇳 INDIA173NT♥8+1-1
-6.2Round 11🇦🇺 AUSTRALIA84♠♣A=-7
-6.4Round 20🇧🇬 BULGARIA275♣x♦10-2-9
-6.6Round 10🇮🇳 INDIA263NT♥6+1+0
-6.8Round 11🇦🇺 AUSTRALIA25♣x♥A=-4
-7.3Round 1🇫🇷 FRANCE65♠x♣A-1-11
-7.8Round 19🇮🇩 INDONESIA122♥♣7-3-5
-7.9Round 4🇯🇵 JAPAN283NT♣5+1-8
-9.2Round 6🇩🇰 DENMARK282♥♦A-2-11
-10.6Round 16🇦🇷 ARGENTINA306♣♥K=+2
-11.1Round 10🇮🇳 INDIA234♠♥A=-10
-11.3Round 13🇮🇹 ITALY76♦♣A-2-13
-12.3Round 1🇫🇷 FRANCE84♥x♠Q-5-5
-12.5Round 20🇧🇬 BULGARIA261♦x♠4+1-14
-14.0Round 10🇮🇳 INDIA324♠x♠2-4-12
-14.0Round 20🇧🇬 BULGARIA184♥x♣K-4-14
-14.6Round 8🇧🇷 BRAZIL196♥♠2+1-16