🇭🇰 CHUNG Yu Kai · HONG KONG CHINA

28rank
+51.1Butler · 120 bds
+0.43per board
±4.0swing
+0.67vs par /bd · #14/87
+0.50adjusted /bd
Butler per round: 5.6 -21 -2.4 7.3 -1.7 6.9 4 -1 -7.5 26.7 -30.3 23 23.2 7.7 10.6by round

vs par split: bidding +0.49 · play +0.17

Strength of schedule: opponents averaged +0.07/bd (a tough draw) → opponent-adjusted +0.50/bd

Card play — on target: opening leads 94.1% #10 of 87 · declarer play 80.0% #23 of 87 · defence 87.5% #19 of 87

Bidding activity — not a pass: 42.0% #47 of 87 (133/317)

Card play by contract type — on target
vs NTvs a suit
Opening leads100.0% (2)93.3% (15)
Declarer play77.8% (9)80.6% (31)
Defence92.3% (13)85.7% (35)

Opening leads by suit led: ♠ 80.0% (5) · ♥ 100.0% (3) · ♦ 100.0% (5) · ♣ 100.0% (4)

vs par by strain: NT +0.55 (33) · a suit +0.71 (87)

vs par by level: part-score +0.78 (49) · game +0.43 (68) · slam +4.33 (3)

By role: declaring +0.74/bd (-0.78 vs par · 72) · defending -0.04/bd (+2.83 vs par · 48)

By vulnerability: vulnerable +0.59/bd (+1.33 vs par · 60) · not vulnerable +0.26/bd (+0.00 vs par · 60)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1L.FanY.Chen – X.RuanClosed8+5.6+0.70+2.12
Round 2L.FanK.Helmbold – A.DonnellanOpen8-21.0-2.62-1.75
Round 3L.FanD.Lucka – N.SuszanowiczClosed8-2.4-0.30-0.50
Round 4L.FanC.Daldal – L.BednarskiClosed8+7.3+0.91-0.88
Round 5L.FanK.Sullivan – E.SuClosed8-1.7-0.21+1.12
Round 6L.FanB.Seah – X.LinOpen8+6.9+0.86+1.62
Round 7L.FanM.Hirono – Y.InamuraClosed8+4.0+0.50+4.25
Round 8L.FanK.Brekke – S.SjodalClosed8-1.0-0.12-2.00
Round 9L.FanA.Damen – I.Van Den WijngaardOpen8-7.5-0.94+0.50
Round 10L.FanN.Vinevich – H.VinevichOpen8+26.7+3.34+2.38
Round 11L.FanF.Hegyi – D.KontraOpen8-30.3-3.79-1.00
Round 12L.FanA.Zeman – H.CorkOpen8+23.0+2.88-0.38
Round 13L.FanZ.Mauberquez – S.GarciaClosed8+23.2+2.90+2.12
Round 14L.FanS.Capobianco – E.DalpozzoOpen8+7.7+0.96+1.50
Round 15L.FanE.Rosthoej – J.SigsgaardClosed8+10.6+1.32+0.88

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
+10.8Round 14🇮🇹 ITALY74♠♣2=+10
+9.7Round 8🇳🇴 NORWAY33♦x♠A=+8
+9.6Round 12🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND223♦♠J+3+10
+9.1Round 5🇺🇸 USA254♥♠7=+8
+8.5Round 10🇮🇱 ISRAEL185♦♥J+1+1
+7.5Round 13🇫🇷 FRANCE314♠♥A=+13
+6.7Round 15🇩🇰 DENMARK163NT♠2+1+7
+6.5Round 10🇮🇱 ISRAEL246♦♠A-2+11
+6.1Round 1🇨🇳 CHINA42♥♦A-1+6
+6.0Round 15🇩🇰 DENMARK123NT♥4+1+1
+5.2Round 10🇮🇱 ISRAEL234♠♣7=+0
+5.1Round 1🇨🇳 CHINA55♠♥T=+15
+4.9Round 12🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND213♥♦3+1+6
+4.8Round 10🇮🇱 ISRAEL213NT♠K-1+5
+4.8Round 13🇫🇷 FRANCE323NT♦4-1+6
+4.6Round 9🇳🇱 NETHERLANDS124♠♦6-1+6
+4.5Round 6🇸🇬 SINGAPORE183♠♦T=+6
+4.3Round 9🇳🇱 NETHERLANDS163NT♦8-1-4
+4.2Round 7🇯🇵 JAPAN262♥♠4+1+6
+4.1Round 8🇳🇴 NORWAY52♦♥4+1+6
+3.9Round 7🇯🇵 JAPAN312NT♦6+2+6
+3.5Round 4🇩🇪 GERMANY326NT♠4=-11
+3.4Round 12🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND173NT♠2=+0
+3.3Round 13🇫🇷 FRANCE264♥♦A-1+5
+3.3Round 13🇫🇷 FRANCE274♥♣6+1+0
+3.2Round 2🇺🇸 USA1103♥♣K=+6
+3.1Round 1🇨🇳 CHINA22♠♦Q+1+0
+3.1Round 4🇩🇪 GERMANY313NT♣5-2+5
+2.9Round 4🇩🇪 GERMANY283NT♠Q+1+14
+2.8Round 14🇮🇹 ITALY14♠♥Q+2+11
+2.7Round 15🇩🇰 DENMARK144♣♠5-1-2
+2.5Round 13🇫🇷 FRANCE304♠♥6=-1
+2.4Round 12🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND194♠♥A+1+0
+2.3Round 12🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND181NT♠T-3+0
+2.2Round 4🇩🇪 GERMANY293NT♥6=-2
+2.1Round 6🇸🇬 SINGAPORE213NT♥6=+11
+2.1Round 6🇸🇬 SINGAPORE223NT♣7=+0
+2.1Round 7🇯🇵 JAPAN253♥♠2=+8
+2.1Round 10🇮🇱 ISRAEL172♠♦K+1+0
+2.1Round 10🇮🇱 ISRAEL193NT♣2+1+1
+2.1Round 11🇭🇺 HUNGARY92♦♠5+1+6
+2.0Round 9🇳🇱 NETHERLANDS105♦♠A+1+3
+1.9Round 1🇨🇳 CHINA61NT♦3=+0
+1.9Round 13🇫🇷 FRANCE292NT♦9=-1
+1.9Round 14🇮🇹 ITALY64♥♠K=+0
+1.8Round 7🇯🇵 JAPAN272♠♠K+2-6
+1.7Round 6🇸🇬 SINGAPORE173♦♣K-1+4
+1.7Round 6🇸🇬 SINGAPORE194♥♣J=+0
+1.6Round 3🇵🇱 POLAND174♥♥4-1+5
+1.5Round 4🇩🇪 GERMANY272♠♦A-1+9
+1.5Round 11🇭🇺 HUNGARY112♥♣8+1+4
+1.5Round 15🇩🇰 DENMARK114♠♦6+2+1
+1.3Round 15🇩🇰 DENMARK153NT♦6+1-1
+1.2Round 14🇮🇹 ITALY42♠♥4=+0
+1.1Round 7🇯🇵 JAPAN304♠♥2+1+0
+1.0Round 3🇵🇱 POLAND234♥♣Q+1+0
+1.0Round 5🇺🇸 USA234♠♦3+1+1
+0.8Round 13🇫🇷 FRANCE255♥♣A-2+1
+0.7Round 4🇩🇪 GERMANY252♠♣3+3-6
+0.5Round 2🇺🇸 USA1113♦♣Q+1-7
+0.5Round 5🇺🇸 USA224♥♠K-1+1
+0.5Round 5🇺🇸 USA263♠♦3=+10
+0.5Round 14🇮🇹 ITALY82NT♣T=+0
+0.4Round 12🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND204♠♦Q-2-9
+0.4Round 12🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND233♦♠K+1-10
+0.3Round 7🇯🇵 JAPAN324♥♠K+2+9
+0.3Round 9🇳🇱 NETHERLANDS113NT♦5+1-1
+0.1Round 3🇵🇱 POLAND203NT♦5+1+1
+0.0Round 1🇨🇳 CHINA74♠♦A=+0
-0.1Round 9🇳🇱 NETHERLANDS143♣♥A-1+3
-0.2Round 5🇺🇸 USA273NT♥4=-1
-0.3Round 3🇵🇱 POLAND211NT♠5+2+1
-0.3Round 3🇵🇱 POLAND223NT♦3=+0
-0.4Round 12🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND243NT♣K+1+0
-0.5Round 6🇸🇬 SINGAPORE243♦♠A=+0
-0.5Round 10🇮🇱 ISRAEL201NT♦3+1+0
-0.6Round 14🇮🇹 ITALY33♣♥2-2-5
-0.7Round 3🇵🇱 POLAND184♦♠5=-6
-0.7Round 11🇭🇺 HUNGARY123NT♣5+1+1
-0.9Round 2🇺🇸 USA1153♠♥9=+7
-0.9Round 13🇫🇷 FRANCE284♠♦T=-6
-1.0Round 6🇸🇬 SINGAPORE202♠♣Q+1+0
-1.3Round 11🇭🇺 HUNGARY134♠♠2+1+0
-1.4Round 4🇩🇪 GERMANY261NT♦8+1-11
-1.5Round 8🇳🇴 NORWAY22NT♥T=+0
-1.6Round 1🇨🇳 CHINA81NT♥5-3+7
-1.6Round 3🇵🇱 POLAND192♠♦J=+0
-1.6Round 15🇩🇰 DENMARK94♥♥2+1-11
-1.7Round 8🇳🇴 NORWAY14♠♥4-1-10
-1.7Round 8🇳🇴 NORWAY72♠♣A=-6
-2.0Round 1🇨🇳 CHINA33♠♣K=+0
-2.0Round 10🇮🇱 ISRAEL225♠♥7+1+1
-2.2Round 3🇵🇱 POLAND244♠♥3-1-5
-2.5Round 15🇩🇰 DENMARK134♥♦T+1+0
-2.6Round 2🇺🇸 USA1163♦♥7+1-1
-2.7Round 8🇳🇴 NORWAY44♥♠A-2-8
-3.1Round 8🇳🇴 NORWAY84♠♠6-2-6
-3.3Round 2🇺🇸 USA1123♥♠A=+0
-3.3Round 2🇺🇸 USA1134♥♣A-2-2
-3.5Round 15🇩🇰 DENMARK105♠♠9=+12
-3.6Round 5🇺🇸 USA282NT♥J=-6
-3.7Round 5🇺🇸 USA214♣♥3-1+2
-3.7Round 6🇸🇬 SINGAPORE234♠♥2-2-8
-3.7Round 11🇭🇺 HUNGARY144♥♦A=+1
-3.9Round 14🇮🇹 ITALY22♠♠6-3-5
-4.1Round 8🇳🇴 NORWAY63♠♦4=+0
-4.3Round 7🇯🇵 JAPAN294♠♣3+1+0
-4.6Round 9🇳🇱 NETHERLANDS152♣♣5=-5
-5.0Round 14🇮🇹 ITALY53NT♣K+1+1
-5.1Round 7🇯🇵 JAPAN284♠♣T+1+11
-5.2Round 4🇩🇪 GERMANY304♠♦5-2-5
-5.3Round 5🇺🇸 USA245♦♣A-1-6
-5.9Round 9🇳🇱 NETHERLANDS136♠♣4=+13
-6.5Round 2🇺🇸 USA193♠♦5+1-6
-7.0Round 1🇨🇳 CHINA13NT♠Q-3-11
-7.5Round 11🇭🇺 HUNGARY164♠♥Q=+0
-8.0Round 11🇭🇺 HUNGARY154♠♥5-1-6
-8.1Round 2🇺🇸 USA1144♠x♣5+1-11
-8.1Round 9🇳🇱 NETHERLANDS94♠♥T+2-11
-12.7Round 11🇭🇺 HUNGARY104♥♠J-4-14