🇭🇰 CHEUNG Kwai Yin · HONG KONG CHINA

133rank
-131.0Butler · 144 bds
-0.91per board
±4.3swing
-1.05vs par /bd · #129/136
-0.85adjusted /bd
Butler per round: -10.5 -21.2 -5.8 -9.7 -6.5 -9.2 8.9 -33.2 -30.1 -10.4 -19.4 16.1by round

vs par split: bidding -1.13 · play +0.10

Strength of schedule: opponents averaged +0.06/bd (a tough draw) → opponent-adjusted -0.85/bd

Card play — on target: opening leads 78.8% #81 of 136 · declarer play 68.3% #88 of 136 · defence 82.6% #101 of 136

Card play by contract type — on target
vs NTvs a suit
Opening leads77.8% (9)79.2% (24)
Declarer play71.4% (7)67.6% (34)
Defence70.0% (20)87.8% (49)

Opening leads by suit led: ♠ 60.0% (5) · ♥ 83.3% (12) · ♦ 80.0% (10) · ♣ 83.3% (6)

vs par by strain: NT -0.23 (39) · a suit -1.33 (104)

vs par by level: part-score -1.00 (61) · game -1.45 (74) · slam +2.62 (8)

By role: declaring -1.28/bd (-3.89 vs par · 75) · defending -0.51/bd (+2.04 vs par · 69)

By vulnerability: vulnerable -1.16/bd (-2.33 vs par · 72) · not vulnerable -0.66/bd (+0.24 vs par · 72)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2W.NeumannO.Seker – P.Tekir DoganOpen12-10.5-0.88-1.83
Round 3W.NeumannK.Wenning – I.GromannOpen12-21.2-1.77-1.17
Round 4W.NeumannD.Balkin – S.IzerelOpen12-5.8-0.48+0.58
Round 6W.NeumannI.Elkin – A.SmalinskyClosed12-9.7-0.81+0.25
Round 8W.NeumannA.Casparie – F.BeekmanClosed12-6.5-0.54+0.08
Round 9W.NeumannH.Wolpert – L.WynstonOpen12-9.2-0.77-1.00
Round 10W.NeumannJ.Thompson – E.JacobClosed12+8.9+0.74+3.17
Round 11W.NeumannP.Lindaas – M.AnjerClosed12-33.2-2.77-4.00
Round 15W.NeumannA.Jarosz – A.ZarebaClosed12-30.1-2.51-5.00
Round 16W.NeumannG.Poncioni – L.DoriaClosed12-10.4-0.87-1.00
Round 17W.NeumannM.Costa – E.RuscallaOpen12-19.4-1.62-3.42
Round 22W.NeumannS.Brock – H.DhondyOpen12+16.1+1.34+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
+11.1Round 15🇵🇱 POLAND184♠♦K=+10
+10.9Round 22🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND86♦x♠4+1+9
+9.4Round 10🇦🇺 AUSTRALIA95♦♥Q-2+13
+9.3Round 16🇧🇷 BRAZIL95♣♦A-3+14
+9.2Round 4🇿🇦 SOUTH AFRICA66♠♦6-1+17
+7.6Round 22🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND45♦♠10-1+12
+7.5Round 8🇳🇱 NETHERLANDS64♥♦J-2+11
+6.8Round 3🇩🇪 GERMANY156♥♣K=+12
+6.0Round 11🇳🇴 NORWAY174♠x♦K-3+9
+5.7Round 4🇿🇦 SOUTH AFRICA23NT♣4-1+10
+4.4Round 3🇩🇪 GERMANY202♠♥K=+1
+4.3Round 10🇦🇺 AUSTRALIA32♥♠A+3+7
+3.9Round 2🇹🇷 TURKIYE82♠♦J-1+5
+3.9Round 10🇦🇺 AUSTRALIA52♦x♦5-2+5
+3.8Round 10🇦🇺 AUSTRALIA64NT♠9-1+13
+3.7Round 6🇦🇷 ARGENTINA23♠♦10-1+4
+3.4Round 8🇳🇱 NETHERLANDS74♠♦K+1+4
+3.2Round 9🇨🇦 CANADA155♥♣6+1-12
+3.1Round 8🇳🇱 NETHERLANDS24♥♠4-2+0
+2.9Round 15🇵🇱 POLAND234♣♠A-2-10
+2.7Round 6🇦🇷 ARGENTINA43♣♦K+1+0
+2.7Round 17🇮🇹 ITALY233NT♥5-1+6
+2.6Round 4🇿🇦 SOUTH AFRICA32♥♠A-1+5
+2.5Round 8🇳🇱 NETHERLANDS114♥♠4-1+5
+2.4Round 4🇿🇦 SOUTH AFRICA93♥♦6=+6
+2.2Round 2🇹🇷 TURKIYE63NT♣J=-1
+2.2Round 22🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND102♠♦K+1+0
+2.0Round 9🇨🇦 CANADA193NT♠2+1+0
+1.7Round 8🇳🇱 NETHERLANDS81NT♣5-2+0
+1.7Round 16🇧🇷 BRAZIL21NT♥3-1-1
+1.6Round 4🇿🇦 SOUTH AFRICA42♠♣7+2+1
+1.6Round 9🇨🇦 CANADA172♥♥10+1+7
+1.5Round 2🇹🇷 TURKIYE33NT♥6=+0
+1.5Round 9🇨🇦 CANADA244♥♣J-1+10
+1.5Round 22🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND51NT♥A=+0
+1.2Round 16🇧🇷 BRAZIL86♠♦2=-11
+1.2Round 22🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND72♥♦A-1-1
+1.1Round 22🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND121NT♦Q-1-2
+0.8Round 6🇦🇷 ARGENTINA94♠♥6+2+1
+0.8Round 11🇳🇴 NORWAY134♥♠Q+1-13
+0.7Round 6🇦🇷 ARGENTINA73NT♠6=+13
+0.7Round 16🇧🇷 BRAZIL54♥♠Q=+0
+0.7Round 16🇧🇷 BRAZIL74♥♣A+1+0
+0.5Round 9🇨🇦 CANADA201NT♦6+1+0
+0.5Round 10🇦🇺 AUSTRALIA23NT♣6-1+10
+0.5Round 17🇮🇹 ITALY133NT♥10-3+5
+0.5Round 17🇮🇹 ITALY212♥♣3+2-4
+0.4Round 6🇦🇷 ARGENTINA14♥♣Q=-1
+0.4Round 8🇳🇱 NETHERLANDS125♦♥5-1-6
+0.4Round 10🇦🇺 AUSTRALIA103NT♥3+2+0
+0.3Round 2🇹🇷 TURKIYE113NT♠10+1+0
+0.3Round 8🇳🇱 NETHERLANDS32♥♦5+1+10
+0.3Round 11🇳🇴 NORWAY202♠♦4+1+10
+0.3Round 17🇮🇹 ITALY203NT♦3+2-13
+0.2Round 2🇹🇷 TURKIYE101NT♠6-1+0
+0.2Round 6🇦🇷 ARGENTINA32♠♥K-2+1
+0.2Round 9🇨🇦 CANADA131NT♣K=+0
+0.1Round 9🇨🇦 CANADA143♥♦A+1+4
+0.0Round 2🇹🇷 TURKIYE73NT♥5=+0
+0.0Round 3🇩🇪 GERMANY164♠♦6=-1
-0.0Round 4🇿🇦 SOUTH AFRICA74♥♦J+1+0
-0.0Round 11🇳🇴 NORWAY223NT♣10+1-1
+0.0Round 15🇵🇱 POLAND152♥♣4+1-10
+0.0Round 16🇧🇷 BRAZIL32NT♥6=+0
-0.0Round 17🇮🇹 ITALY173NT♥2+2+0
+0.0Round 22🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND24♠♥2=+0
-0.1Round 8🇳🇱 NETHERLANDS104♠♣A=+0
-0.1Round 16🇧🇷 BRAZIL62♦♣9+2-7
-0.4Round 4🇿🇦 SOUTH AFRICA112♠♥K-1+2
-0.4Round 16🇧🇷 BRAZIL104♥♠9=-1
-0.5Round 22🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND11NT♦10+3+6
-0.5Round 22🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND93NT♦10+2-10
-0.6Round 3🇩🇪 GERMANY133♠♥5+1+8
-0.7Round 3🇩🇪 GERMANY173♠♣5-2+1
-0.7Round 3🇩🇪 GERMANY232♠♥Q-2+7
-0.7Round 4🇿🇦 SOUTH AFRICA84♠x♣7-2-12
-0.7Round 6🇦🇷 ARGENTINA83♥♠K-1-2
-0.7Round 11🇳🇴 NORWAY163NT♣6+2+0
-0.7Round 16🇧🇷 BRAZIL43♠♣7+1-8
-0.7Round 17🇮🇹 ITALY155♥♠Q+1-1
-0.8Round 6🇦🇷 ARGENTINA51NT♥6+1-1
-0.8Round 6🇦🇷 ARGENTINA113NT♥6+3-1
-0.9Round 10🇦🇺 AUSTRALIA72♠♥4-2-3
-1.0Round 2🇹🇷 TURKIYE92♠♥K-1+6
-1.0Round 22🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND115♦♥4-2-5
-1.2Round 17🇮🇹 ITALY224♠♣3=-3
-1.4Round 15🇵🇱 POLAND242♥♣J-2-8
-1.6Round 2🇹🇷 TURKIYE123♠♥A-1-6
-1.6Round 15🇵🇱 POLAND173NT♠4+2-1
-1.7Round 10🇦🇺 AUSTRALIA13NT♠6-1-5
-1.7Round 17🇮🇹 ITALY144♥♠A+1+0
-1.7Round 17🇮🇹 ITALY242♥♦8-1-5
-1.8Round 10🇦🇺 AUSTRALIA114♠♥Q+1+11
-2.0Round 8🇳🇱 NETHERLANDS13NT♥4+3-1
-2.2Round 10🇦🇺 AUSTRALIA123♠♦10=+7
-2.2Round 22🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND32♠♣8-2+0
-2.3Round 11🇳🇴 NORWAY242NT♦3-2-5
-2.4Round 11🇳🇴 NORWAY21Pass-4
-2.5Round 9🇨🇦 CANADA183NT♠10+2+0
-2.6Round 9🇨🇦 CANADA232♥♠4-1+0
-2.7Round 9🇨🇦 CANADA222♥♦A+3-6
-2.9Round 10🇦🇺 AUSTRALIA83♦♣K-3-7
-3.0Round 3🇩🇪 GERMANY183♦♠K-1-11
-3.0Round 15🇵🇱 POLAND195♦x♠J-1-6
-3.1Round 3🇩🇪 GERMANY192♠♥K-1-4
-3.1Round 17🇮🇹 ITALY164♠♦10+2-11
-3.2Round 2🇹🇷 TURKIYE12♥♦4=+1
-3.2Round 9🇨🇦 CANADA163NT♠2+3-3
-3.2Round 15🇵🇱 POLAND203♥♠3=+0
-3.4Round 15🇵🇱 POLAND222♠♠7-3-6
-3.5Round 2🇹🇷 TURKIYE24♠♥A+2-13
-3.5Round 11🇳🇴 NORWAY181NT♦2-3-5
-3.7Round 4🇿🇦 SOUTH AFRICA104♥♣J+1+0
-3.7Round 11🇳🇴 NORWAY195♠x♦K-1-7
-3.9Round 10🇦🇺 AUSTRALIA44♠♥J+2-13
-4.0Round 6🇦🇷 ARGENTINA63♥♦2=-1
-4.0Round 15🇵🇱 POLAND132♠♥9=-6
-4.1Round 6🇦🇷 ARGENTINA104♠♥10-3-10
-4.2Round 8🇳🇱 NETHERLANDS91♦♠10+1+1
-4.2Round 22🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND65♥♠10=+0
-4.4Round 2🇹🇷 TURKIYE42♠♦J+1-6
-4.4Round 4🇿🇦 SOUTH AFRICA14NT♠4=+1
-4.6Round 16🇧🇷 BRAZIL14♠♥2=+0
-4.9Round 2🇹🇷 TURKIYE51♦x♣A-1-8
-5.2Round 3🇩🇪 GERMANY213NT♣J-2-13
-5.3Round 3🇩🇪 GERMANY225♣♥7=+0
-5.4Round 8🇳🇱 NETHERLANDS53♥♠5-2-11
-5.7Round 3🇩🇪 GERMANY244♠♣K+2-14
-6.8Round 4🇿🇦 SOUTH AFRICA121NT♠2+2-10
-7.2Round 16🇧🇷 BRAZIL116♠♥K=+11
-7.3Round 9🇨🇦 CANADA215♠♥A-1-12
-7.4Round 17🇮🇹 ITALY185♦x♣4-1-7
-7.6Round 17🇮🇹 ITALY195♥♥9=-8
-7.8Round 6🇦🇷 ARGENTINA126NT♠J=+0
-7.9Round 15🇵🇱 POLAND145♥x♣J-1-11
-8.1Round 3🇩🇪 GERMANY146♠♣A=+0
-8.5Round 15🇵🇱 POLAND164♥♦5=+1
-8.7Round 11🇳🇴 NORWAY145♦♦4=-7
-9.4Round 11🇳🇴 NORWAY154♠x♥5-2-8
-9.6Round 11🇳🇴 NORWAY236♥♠9-1-17
-11.0Round 16🇧🇷 BRAZIL125♥♦A-1-9
-11.1Round 15🇵🇱 POLAND215♥♣2-2-13
-11.3Round 4🇿🇦 SOUTH AFRICA54♥♥4+2-13
-13.7Round 8🇳🇱 NETHERLANDS43♦x♦2-3-12