🇭🇰 KOO Tsang Tat Ricky · CHINA HONG KONG

49rank
-18.0Butler · 179 bds
-0.10per board
±5.2swing
+0.20vs par /bd · #41/83
+0.01adjusted /bd
Butler per round: 30.9 -33.5 13 29.2 12 -19.7 -24 -2 -23.9by round

vs par split: bidding +0.06 · play +0.14

Strength of schedule: opponents averaged +0.11/bd (a tough draw) → opponent-adjusted +0.01/bd

Card play — on target: opening leads 79.2% #43 of 83 · declarer play 71.1% #55 of 83 · defence 79.8% #62 of 83

Card play by contract type — on target
vs NTvs a suit
Opening leads85.7% (14)76.9% (39)
Declarer play73.3% (15)70.0% (30)
Defence76.7% (30)81.2% (64)

Opening leads by suit led: ♠ 75.0% (12) · ♥ 81.8% (11) · ♦ 85.7% (14) · ♣ 75.0% (16)

vs par by strain: NT +0.98 (58) · a suit -0.18 (121)

vs par by level: part-score -0.42 (64) · game +0.43 (104) · slam +1.54 (11)

By role: declaring +0.12/bd (-2.37 vs par · 85) · defending -0.30/bd (+2.51 vs par · 94)

By vulnerability: vulnerable -0.96/bd (-0.65 vs par · 89) · not vulnerable +0.75/bd (+1.03 vs par · 90)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1C.PoonA.Iaboni – H.MacaulayClosed19+30.9+1.63+1.37
Round 4C.PoonS.Katz – D.GoldfeinClosed20-33.5-1.68-0.65
Round 6C.PoonH.Malik – H.SaeedClosed20+13.0+0.65+0.40
Round 8C.PoonK.Cao – H.WangClosed20+29.2+1.46+2.00
Round 9C.PoonM.Beck – J.ChiuClosed20+12.0+0.60+0.40
Round 11C.PoonA.Wasiak – J.KrawczykClosed20-19.7-0.98-0.85
Round 12C.PoonA.Edgtton – N.EdgttonClosed20-24.0-1.20-2.60
Round 14C.PoonE.Sjoberg – S.RimstedtClosed20-2.0-0.10+2.50
Round 15C.PoonB.Tarnovski – D.PadonClosed20-23.9-1.19-0.75

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
+12.9Round 15🇮🇱 ISRAEL163♦x♥2-4+14
+12.3Round 1🇨🇦 CANADA81NTx♠10-5+12
+10.8Round 12🇦🇺 AUSTRALIA56NT♣2+1+1
+10.1Round 6🇵🇰 PAKISTAN83NT♣3-1+10
+9.7Round 6🇵🇰 PAKISTAN165♥♣4-1+12
+9.6Round 11🇵🇱 POLAND153NT♥K=+0
+9.4Round 14🇸🇪 SWEDEN54♠x♦2-3+14
+9.3Round 9🇺🇸 USA RED176NT♥5=+0
+8.3Round 14🇸🇪 SWEDEN125♣x♥K=+4
+8.1Round 8🇨🇳 CHINA125♠♥Q=+0
+8.1Round 11🇵🇱 POLAND65♠x♦A-1+7
+7.9Round 8🇨🇳 CHINA14♠♣8+1+8
+7.9Round 9🇺🇸 USA RED123NT♣5+1+7
+7.8Round 1🇨🇦 CANADA76NT♠2+1+13
+7.7Round 8🇨🇳 CHINA24♥♣3=+7
+7.3Round 1🇨🇦 CANADA194♠x♦A-3+8
+7.3Round 8🇨🇳 CHINA45♠♣6-1+12
+6.7Round 4🇺🇸 USA BLUE164♠♥4+2+17
+6.6Round 4🇺🇸 USA BLUE55♠♦8+1+11
+6.3Round 12🇦🇺 AUSTRALIA74♠♣7-1+13
+6.1Round 8🇨🇳 CHINA53NT♣8-3+5
+5.9Round 4🇺🇸 USA BLUE203NT♠6-2+13
+5.9Round 11🇵🇱 POLAND204♥♦J-1+12
+5.8Round 9🇺🇸 USA RED103NT♦10-2+13
+5.8Round 14🇸🇪 SWEDEN43NT♥5-1+12
+5.7Round 11🇵🇱 POLAND24♠♥8=+8
+5.6Round 12🇦🇺 AUSTRALIA82♦x♥2+2-1
+5.5Round 6🇵🇰 PAKISTAN113NT♥Q=+3
+5.3Round 6🇵🇰 PAKISTAN71NT♣7-1+6
+4.9Round 14🇸🇪 SWEDEN76♥♠2=+8
+4.7Round 1🇨🇦 CANADA114♠♣A=+0
+4.7Round 6🇵🇰 PAKISTAN174NT♣7=+1
+4.7Round 9🇺🇸 USA RED201NT♥3+1+1
+4.2Round 8🇨🇳 CHINA131NT♥4=+5
+4.1Round 14🇸🇪 SWEDEN34♠♥5-2+6
+3.8Round 15🇮🇱 ISRAEL176♥♣A=+12
+3.7Round 15🇮🇱 ISRAEL94♣♠K-2+3
+3.6Round 1🇨🇦 CANADA14♥♠6+3+7
+3.6Round 6🇵🇰 PAKISTAN134♠♥Q-1+6
+3.5Round 1🇨🇦 CANADA92♠♥2=+5
+3.5Round 12🇦🇺 AUSTRALIA95♦♣8=-13
+3.5Round 15🇮🇱 ISRAEL22NT♦10=-1
+3.3Round 4🇺🇸 USA BLUE124♠♦10-1+5
+3.3Round 14🇸🇪 SWEDEN163NT♥9-3+7
+3.1Round 1🇨🇦 CANADA122NT♠4-3+7
+3.1Round 12🇦🇺 AUSTRALIA144♥x♣2-1+5
+3.1Round 14🇸🇪 SWEDEN25♣♦2=+0
+2.8Round 6🇵🇰 PAKISTAN124♠♣3=+0
+2.8Round 8🇨🇳 CHINA203NT♥2-1+6
+2.7Round 4🇺🇸 USA BLUE173NT♦5-1+5
+2.7Round 8🇨🇳 CHINA162♥♣J=+6
+2.7Round 9🇺🇸 USA RED21NT♣7=+5
+2.7Round 9🇺🇸 USA RED163♠♥A-1+8
+2.7Round 14🇸🇪 SWEDEN204♠♦A=+3
+2.5Round 8🇨🇳 CHINA112NT♥Q=+6
+2.5Round 9🇺🇸 USA RED146♣♥10+1-2
+2.5Round 14🇸🇪 SWEDEN183NT♥9=+0
+2.1Round 4🇺🇸 USA BLUE82♣♦10-1+5
+2.1Round 12🇦🇺 AUSTRALIA154♥x♠2-1+2
+2.0Round 15🇮🇱 ISRAEL32♠♣4=+0
+1.9Round 1🇨🇦 CANADA103NT♠Q+3-17
+1.9Round 9🇺🇸 USA RED43NT♠2=-1
+1.7Round 6🇵🇰 PAKISTAN43♣♦3+1+9
+1.7Round 6🇵🇰 PAKISTAN54♥♣4+1+1
+1.7Round 8🇨🇳 CHINA103NT♠J+1+0
+1.7Round 9🇺🇸 USA RED52♠♣K+1+1
+1.7Round 11🇵🇱 POLAND195♦♠A=+0
+1.5Round 1🇨🇦 CANADA182♦♥K=+5
+1.3Round 12🇦🇺 AUSTRALIA114♠♦K+1-11
+1.2Round 1🇨🇦 CANADA203NT♣2+3-12
+1.1Round 11🇵🇱 POLAND93♣♠3+1+0
+1.0Round 6🇵🇰 PAKISTAN142♥♦K+1-6
+1.0Round 11🇵🇱 POLAND144♥♣A-1+5
+0.9Round 14🇸🇪 SWEDEN83NT♦6-2+5
+0.9Round 15🇮🇱 ISRAEL53NT♣9-1+5
+0.7Round 9🇺🇸 USA RED112♠♥K+2-6
+0.7Round 12🇦🇺 AUSTRALIA33♦♣2-3-10
+0.5Round 6🇵🇰 PAKISTAN63NT♣9=-1
+0.4Round 15🇮🇱 ISRAEL84♠♥4-1+4
+0.3Round 1🇨🇦 CANADA133♣♠A=+0
+0.3Round 4🇺🇸 USA BLUE94♠♣K+1-11
+0.3Round 6🇵🇰 PAKISTAN194♥♥4-1+5
+0.3Round 8🇨🇳 CHINA143NT♠10+2+0
+0.2Round 9🇺🇸 USA RED73♥♠7=+0
+0.2Round 9🇺🇸 USA RED85♦♣A+2+4
+0.2Round 14🇸🇪 SWEDEN171NT♥2-2+8
+0.1Round 1🇨🇦 CANADA154♥♦K=+8
+0.1Round 1🇨🇦 CANADA174♥♦2+1+0
+0.1Round 8🇨🇳 CHINA81♠♥Q=-8
-0.0Round 12🇦🇺 AUSTRALIA184♥♦2=+0
-0.1Round 11🇵🇱 POLAND44♠♣J+1+13
-0.1Round 11🇵🇱 POLAND121NT♥8=+1
-0.1Round 11🇵🇱 POLAND184♠♥8+1-13
-0.2Round 1🇨🇦 CANADA143♠♥A-1+4
-0.2Round 4🇺🇸 USA BLUE183NT♦10+1+0
-0.2Round 15🇮🇱 ISRAEL63NT♦Q+1+0
-0.3Round 12🇦🇺 AUSTRALIA25♠♣J=+0
-0.3Round 12🇦🇺 AUSTRALIA132♠♦J+1+0
-0.4Round 1🇨🇦 CANADA166♣♣8=-11
-0.5Round 4🇺🇸 USA BLUE104♥♦Q+1+0
-0.5Round 8🇨🇳 CHINA94♠♦K+1+0
-0.5Round 9🇺🇸 USA RED62NT♦Q=+0
-0.5Round 14🇸🇪 SWEDEN14♥♦K=+0
-0.6Round 4🇺🇸 USA BLUE154♥♦7+1+0
-0.7Round 15🇮🇱 ISRAEL133♠♦9=+0
-1.1Round 9🇺🇸 USA RED33NT♣7=-2
-1.1Round 14🇸🇪 SWEDEN92♦♦6+1+0
-1.1Round 15🇮🇱 ISRAEL114♠♦Q+1+0
-1.1Round 15🇮🇱 ISRAEL151NT♠6+2+0
-1.1Round 15🇮🇱 ISRAEL194♠♠8+2-11
-1.3Round 1🇨🇦 CANADA64♦♥4=+0
-1.3Round 6🇵🇰 PAKISTAN203NT♠4+4-17
-1.4Round 1🇨🇦 CANADA53♦♥6=+0
-1.4Round 9🇺🇸 USA RED154♥x♠9-4+11
-1.4Round 12🇦🇺 AUSTRALIA121NT♣2=+11
-1.5Round 11🇵🇱 POLAND53NT♠2+1-1
-1.6Round 12🇦🇺 AUSTRALIA163♥♣2-1-2
-1.7Round 15🇮🇱 ISRAEL143NT♠10+1+0
-1.8Round 8🇨🇳 CHINA154♥♥4=+0
-2.1Round 8🇨🇳 CHINA184♥♦2=+0
-2.2Round 8🇨🇳 CHINA32♣♠A=+1
-2.3Round 4🇺🇸 USA BLUE71NT♣6+1+1
-2.3Round 6🇵🇰 PAKISTAN95♦♠A=+1
-2.4Round 14🇸🇪 SWEDEN194♠♥7=+0
-2.5Round 8🇨🇳 CHINA193♠♥A+1-4
-2.7Round 6🇵🇰 PAKISTAN21NT♥3=-5
-2.7Round 12🇦🇺 AUSTRALIA12♦♣J+1+0
-2.8Round 6🇵🇰 PAKISTAN102♠♣A+2-2
-2.9Round 11🇵🇱 POLAND13♥♠A=-6
-2.9Round 11🇵🇱 POLAND84♥♦4+1-11
-3.0Round 4🇺🇸 USA BLUE12♦♣3+2+7
-3.0Round 4🇺🇸 USA BLUE63♥♠A-1-4
-3.0Round 9🇺🇸 USA RED193NT♠4-2-13
-3.1Round 9🇺🇸 USA RED134♠♣A-1+1
-3.2Round 11🇵🇱 POLAND101NT♥A=+1
-3.3Round 12🇦🇺 AUSTRALIA63NT♣2=-2
-3.4Round 8🇨🇳 CHINA74♠♦A+2-5
-3.5Round 11🇵🇱 POLAND161NT♣2+1+0
-3.5Round 15🇮🇱 ISRAEL102♠♥A+2-2
-3.7Round 14🇸🇪 SWEDEN131NT♥K-2-7
-3.7Round 15🇮🇱 ISRAEL124♠♦5+1-1
-3.8Round 8🇨🇳 CHINA173NT♣6-1-10
-3.9Round 4🇺🇸 USA BLUE45♣♠2+1-17
-4.2Round 15🇮🇱 ISRAEL12♣♦Q+1-5
-4.3Round 6🇵🇰 PAKISTAN32♠♣6=-6
-4.4Round 11🇵🇱 POLAND112♠♣A=-6
-4.5Round 9🇺🇸 USA RED182♠♣K=+0
-4.7Round 4🇺🇸 USA BLUE144♥♣K+1-1
-4.8Round 14🇸🇪 SWEDEN154♥♣2+1+0
-4.9Round 1🇨🇦 CANADA45♠♥2+2-3
-4.9Round 11🇵🇱 POLAND172NT♥4-1-5
-5.0Round 4🇺🇸 USA BLUE192♥♦K-1-5
-5.4Round 14🇸🇪 SWEDEN143NT♠J=+2
-5.6Round 6🇵🇰 PAKISTAN152♠♥3-1-5
-5.6Round 11🇵🇱 POLAND33♥♣K=-7
-5.7Round 15🇮🇱 ISRAEL204♠♣A+1-1
-5.9Round 8🇨🇳 CHINA66♥♦8+1+11
-6.2Round 4🇺🇸 USA BLUE23NT♠4-2-7
-6.2Round 6🇵🇰 PAKISTAN14♠♠5+1-4
-6.3Round 9🇺🇸 USA RED14♠♣K-1-10
-6.3Round 15🇮🇱 ISRAEL41♠♣J+2-11
-7.1Round 4🇺🇸 USA BLUE113NT♦A=+0
-7.1Round 4🇺🇸 USA BLUE133♣♥J+3-15
-7.8Round 14🇸🇪 SWEDEN103NT♦5=+1
-8.2Round 12🇦🇺 AUSTRALIA174♥x♦2-2+3
-8.2Round 14🇸🇪 SWEDEN116♣♠A=+2
-8.3Round 1🇨🇦 CANADA33NT♦4=+0
-8.3Round 12🇦🇺 AUSTRALIA204♠♥8-3-10
-8.4Round 9🇺🇸 USA RED91♥x♦Q-2-9
-8.5Round 12🇦🇺 AUSTRALIA194♥♣2=-11
-8.7Round 6🇵🇰 PAKISTAN186♠♠5=+0
-9.9Round 15🇮🇱 ISRAEL74♠♦A-1-12
-10.3Round 12🇦🇺 AUSTRALIA44♠♥J-3-10
-11.3Round 11🇵🇱 POLAND132♥♦4-1-12
-11.9Round 15🇮🇱 ISRAEL182♠x♦A-5-9
-12.3Round 11🇵🇱 POLAND74♠♥J=-3
-12.5Round 12🇦🇺 AUSTRALIA105♠♣2+2-17
-13.3Round 14🇸🇪 SWEDEN63NT♠4-4-15
-17.5Round 4🇺🇸 USA BLUE37♦♠6=-17