🇭🇰 LEUNG Chung-Man Ivan · CHINA HONG KONG

69rank
-60.1Butler · 220 bds
-0.27per board
±4.3swing
-0.85vs par /bd · #83/92
-0.26adjusted /bd
Butler per round: -1.3 6.3 -2.6 -17.7 2.7 -35.2 21.1 -15 0.4 -7.9 -10.9by round

vs par split: bidding -0.61 · play -0.23

Strength of schedule: opponents averaged +0.01/bd (an average draw) → opponent-adjusted -0.26/bd

Card play — on target: opening leads 77.4% #56 of 92 · declarer play 80.9% #16 of 92 · defence 79.2% #78 of 92

Card play by contract type — on target
vs NTvs a suit
Opening leads75.0% (20)78.8% (33)
Declarer play83.3% (12)80.0% (35)
Defence66.7% (36)85.7% (70)

Opening leads by suit led: ♠ 83.3% (12) · ♥ 82.4% (17) · ♦ 75.0% (8) · ♣ 68.8% (16)

vs par by strain: NT -0.30 (70) · a suit -1.10 (148)

vs par by level: part-score -1.23 (86) · game -0.42 (120) · slam -2.25 (12)

By role: declaring +0.26/bd (-2.15 vs par · 111) · defending -0.84/bd (+0.47 vs par · 108)

By vulnerability: vulnerable -0.57/bd (-0.90 vs par · 110) · not vulnerable +0.03/bd (-0.80 vs par · 110)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1W.YiuK.Ng – L.TanClosed20-1.3-0.07+0.10
Round 2W.YiuY.Ikemoto – H.YokoiOpen20+6.3+0.32-0.30
Round 5W.YiuA.Yousry – M.LewisOpen20-2.6-0.13-0.75
Round 6W.YiuJ.Kalita – K.KotorowiczOpen20-17.7-0.89-1.20
Round 7W.YiuG.Feiler – G.WareOpen20+2.7+0.14-0.25
Round 8W.YiuF.Lo Presti – S.Di BelloOpen20-35.2-1.76-1.60
Round 10W.YiuJ.Brum – E.RossiClosed20+21.1+1.06+0.60
Round 11W.YiuC.Thotongkam – R.SookkasemOpen20-15.0-0.75-1.30
Round 13W.YiuR.Hoffman – G.OfirOpen20+0.4+0.02-2.15
Round 15W.YiuE.Anderson – C.HalasiClosed20-7.9-0.40-0.20
Round 16W.YiuE.Lindqvist – E.EideOpen20-10.9-0.55-2.30

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
+13.8Round 11🇹🇭 THAILAND93NT♠K-7+13
+11.4Round 5🇪🇬 EGYPT203NT♣J-1+12
+11.1Round 10🇧🇷 BRAZIL147NTx♠A-1+14
+10.9Round 1🇸🇬 SINGAPORE65♦♠7=+10
+10.2Round 7🇦🇺 AUSTRALIA85♦♣7-1+10
+9.9Round 2🇯🇵 JAPAN13♦x♠A-4+9
+9.7Round 16🇳🇴 NORWAY64♠x♣2-2+11
+8.6Round 5🇪🇬 EGYPT94♥♦3=+3
+8.1Round 7🇦🇺 AUSTRALIA104♠♥5-3+9
+6.7Round 2🇯🇵 JAPAN142♥♠10=+11
+6.4Round 10🇧🇷 BRAZIL104♥♦10=+0
+6.1Round 2🇯🇵 JAPAN191♠x♦J=+7
+5.8Round 13🇮🇱 ISRAEL14♠♣5-1+5
+5.8Round 15🇨🇦 CANADA194♥♠Q=-1
+5.5Round 5🇪🇬 EGYPT163NT♦5+1+0
+5.4Round 6🇵🇱 POLAND153NT♠6+3+11
+5.2Round 2🇯🇵 JAPAN134♠♣3=+0
+5.1Round 1🇸🇬 SINGAPORE114♠♣A-2+11
+5.1Round 8🇮🇹 ITALY14♠x♥7-2+5
+5.1Round 10🇧🇷 BRAZIL134♠x♣A-1+2
+4.9Round 2🇯🇵 JAPAN93NT♣5-1+5
+4.8Round 10🇧🇷 BRAZIL123NT♠6-1+5
+4.7Round 15🇨🇦 CANADA206♦♥2-1+16
+4.5Round 7🇦🇺 AUSTRALIA63NT♣3+1+0
+4.4Round 13🇮🇱 ISRAEL155♣♠J=-11
+4.3Round 5🇪🇬 EGYPT113♥♦J=+1
+4.3Round 10🇧🇷 BRAZIL164♥♣Q+2+1
+4.2Round 10🇧🇷 BRAZIL62NT♦Q=+0
+4.1Round 1🇸🇬 SINGAPORE51NT♦10-2+3
+4.1Round 1🇸🇬 SINGAPORE94♠♣J-1-2
+4.1Round 7🇦🇺 AUSTRALIA32♥♣K+2+1
+4.1Round 10🇧🇷 BRAZIL53♠♠J-1+4
+4.1Round 13🇮🇱 ISRAEL31NT♥10=+6
+4.1Round 16🇳🇴 NORWAY43NT♥2+1+0
+4.0Round 7🇦🇺 AUSTRALIA113NT♥Q=+3
+3.8Round 2🇯🇵 JAPAN114♠♥5-2-5
+3.7Round 15🇨🇦 CANADA41NT♣3-2+3
+3.6Round 11🇹🇭 THAILAND124♦♠Q-2-1
+3.6Round 13🇮🇱 ISRAEL81NT♣3+2+2
+3.6Round 15🇨🇦 CANADA83♥♠8=+6
+3.4Round 1🇸🇬 SINGAPORE204♠♥3+1+12
+3.4Round 6🇵🇱 POLAND64♠♣A-1+6
+2.8Round 6🇵🇱 POLAND72♦♣A+1+6
+2.8Round 11🇹🇭 THAILAND173NT♠Q+2+1
+2.8Round 15🇨🇦 CANADA114♠♦5-1+6
+2.7Round 11🇹🇭 THAILAND193♥♣5-2+11
+2.6Round 15🇨🇦 CANADA172NT♥3=+1
+2.5Round 15🇨🇦 CANADA184♠♥K-2+11
+2.5Round 16🇳🇴 NORWAY124♥♦10-1+7
+2.4Round 16🇳🇴 NORWAY83♣♦K=+0
+2.3Round 1🇸🇬 SINGAPORE77♣♣8=-2
+2.3Round 1🇸🇬 SINGAPORE142♠♥A=+0
+2.3Round 6🇵🇱 POLAND172♥♠Q=-1
+2.2Round 5🇪🇬 EGYPT102♠♦K=-1
+2.1Round 5🇪🇬 EGYPT4Adj.♠A+1
+2.1Round 7🇦🇺 AUSTRALIA132NT♥J-1+6
+2.1Round 13🇮🇱 ISRAEL111NT♣Q+2+1
+2.0Round 8🇮🇹 ITALY204♥♠8=+3
+2.0Round 11🇹🇭 THAILAND63NT♥7+1+1
+1.9Round 11🇹🇭 THAILAND113♥♠K-3+0
+1.8Round 16🇳🇴 NORWAY171NT♠4-3-7
+1.7Round 6🇵🇱 POLAND162♣♦4=+5
+1.5Round 11🇹🇭 THAILAND52NT♦2=+0
+1.5Round 15🇨🇦 CANADA141NT♦A+1-1
+1.4Round 7🇦🇺 AUSTRALIA194♥♥4-2+7
+1.4Round 13🇮🇱 ISRAEL203NT♠4=-1
+1.3Round 13🇮🇱 ISRAEL73NT♦3+2+1
+1.2Round 2🇯🇵 JAPAN103NT♠10+2+0
+1.2Round 6🇵🇱 POLAND92NT♠10=-7
+1.2Round 10🇧🇷 BRAZIL73♥♠7+1+1
+1.2Round 13🇮🇱 ISRAEL135♦♦A=+1
+1.1Round 5🇪🇬 EGYPT83♥♠K+1+2
+1.1Round 5🇪🇬 EGYPT174♠♦7+2+11
+1.1Round 6🇵🇱 POLAND184♠♦Q+2-13
+1.1Round 8🇮🇹 ITALY24♠♥Q-1+5
+1.1Round 10🇧🇷 BRAZIL113♠♥K+1+6
+1.1Round 11🇹🇭 THAILAND182♠♣A=-9
+1.1Round 13🇮🇱 ISRAEL103NT♠K-1+6
+1.1Round 16🇳🇴 NORWAY131NT♥K-1+5
+1.0Round 2🇯🇵 JAPAN82♠♣K-1+3
+1.0Round 13🇮🇱 ISRAEL183♣♠Q+2-6
+1.0Round 16🇳🇴 NORWAY14♥♦10=+0
+0.9Round 8🇮🇹 ITALY64♠♦A-1+5
+0.9Round 8🇮🇹 ITALY173♥♦2=+0
+0.9Round 10🇧🇷 BRAZIL173NT♥10+1+11
+0.8Round 1🇸🇬 SINGAPORE31NT♥7-4-9
+0.8Round 1🇸🇬 SINGAPORE174♥♥2+1+0
+0.8Round 8🇮🇹 ITALY183NT♥7+2-11
+0.8Round 15🇨🇦 CANADA74♠♣J=+0
+0.8Round 16🇳🇴 NORWAY142♥♠J+3-6
+0.7Round 13🇮🇱 ISRAEL52♥♠Q-2-5
+0.5Round 10🇧🇷 BRAZIL33NT♣7+1+1
+0.5Round 10🇧🇷 BRAZIL153NT♥J+3-12
+0.5Round 11🇹🇭 THAILAND143♥♦10-1+2
+0.4Round 7🇦🇺 AUSTRALIA71NT♦10+1+1
+0.3Round 5🇪🇬 EGYPT144♥♣2=+0
+0.3Round 6🇵🇱 POLAND143NT♠3+1+0
+0.3Round 7🇦🇺 AUSTRALIA142♥♦A+1-6
+0.3Round 11🇹🇭 THAILAND153NT♥10+1+0
+0.3Round 11🇹🇭 THAILAND204♠♥K+2-13
+0.2Round 7🇦🇺 AUSTRALIA172NT♦5=-7
+0.2Round 10🇧🇷 BRAZIL183♣♠5=-5
+0.2Round 11🇹🇭 THAILAND14♥♣Q=+1
+0.1Round 2🇯🇵 JAPAN33♣♠A+1+0
+0.1Round 13🇮🇱 ISRAEL144♠♥K=-1
+0.0Round 10🇧🇷 BRAZIL22♥♦8-1-5
-0.1Round 16🇳🇴 NORWAY194♠♥7=+0
-0.2Round 7🇦🇺 AUSTRALIA12♠♥K+2+4
-0.2Round 8🇮🇹 ITALY74♠♠2+2-1
-0.3Round 5🇪🇬 EGYPT154♥♣K=+0
-0.3Round 13🇮🇱 ISRAEL193♥♣5-1-10
-0.4Round 5🇪🇬 EGYPT33NT♠8=+1
-0.4Round 6🇵🇱 POLAND113NT♥8+1+0
-0.4Round 15🇨🇦 CANADA33♦♥6-1-5
-0.4Round 15🇨🇦 CANADA54NT♥10=+10
-0.6Round 1🇸🇬 SINGAPORE131NT♣7-1+1
-0.6Round 6🇵🇱 POLAND33♠♥A=-7
-0.6Round 16🇳🇴 NORWAY56♦♠A+1+0
-0.6Round 16🇳🇴 NORWAY113NT♦J+3-10
-0.7Round 1🇸🇬 SINGAPORE84♠♥2+2-1
-0.7Round 5🇪🇬 EGYPT23♥♣3=-1
-0.7Round 6🇵🇱 POLAND82♥♠3-1-5
-0.7Round 6🇵🇱 POLAND192♠♥2-2+9
-0.7Round 16🇳🇴 NORWAY34♠♣5-1-5
-0.8Round 6🇵🇱 POLAND43NT♥6+1+0
-0.9Round 2🇯🇵 JAPAN22♠♥2-1+2
-0.9Round 2🇯🇵 JAPAN164♠♣2=+1
-0.9Round 8🇮🇹 ITALY152♠♣7-1-1
-0.9Round 10🇧🇷 BRAZIL85♥♠A=-4
-1.0Round 1🇸🇬 SINGAPORE195♥♠A=+0
-1.1Round 5🇪🇬 EGYPT124♠♦9=+0
-1.1Round 7🇦🇺 AUSTRALIA203NT♦6+4-17
-1.1Round 11🇹🇭 THAILAND162♠♦3+1+0
-1.2Round 16🇳🇴 NORWAY204♠♦A=-3
-1.3Round 7🇦🇺 AUSTRALIA54♥♣2=+0
-1.3Round 11🇹🇭 THAILAND74♠♥Q=+1
-1.4Round 1🇸🇬 SINGAPORE15♥♠K+2-7
-1.4Round 2🇯🇵 JAPAN172♠♠4+1+0
-1.4Round 7🇦🇺 AUSTRALIA21NT♣4=-5
-1.4Round 8🇮🇹 ITALY32♥♦J+3-10
-1.4Round 8🇮🇹 ITALY162NT♣2+2+6
-1.5Round 8🇮🇹 ITALY93♣♦A+1+2
-1.5Round 8🇮🇹 ITALY104♥♣K+1+0
-1.5Round 15🇨🇦 CANADA24♠♥4=+0
-1.5Round 15🇨🇦 CANADA134♠♥2+1+0
-1.6Round 13🇮🇱 ISRAEL6Pass-4
-1.8Round 10🇧🇷 BRAZIL43NT♠2=+1
-1.9Round 5🇪🇬 EGYPT73NT♣3+2+0
-1.9Round 6🇵🇱 POLAND136NT♠4=+0
-1.9Round 13🇮🇱 ISRAEL173NT♥2-1-10
-2.1Round 15🇨🇦 CANADA93NT♥6=+1
-2.2Round 6🇵🇱 POLAND14♥♣4+1+0
-2.2Round 8🇮🇹 ITALY42♠♣K-2-8
-2.4Round 1🇸🇬 SINGAPORE46♠♣3=-12
-2.4Round 11🇹🇭 THAILAND103NT♣2+3+12
-2.4Round 13🇮🇱 ISRAEL22♦♣6+2-6
-2.6Round 2🇯🇵 JAPAN183NT♥Q=+1
-2.6Round 7🇦🇺 AUSTRALIA95♥♠A=-1
-2.7Round 11🇹🇭 THAILAND44♠♠J=+1
-2.8Round 2🇯🇵 JAPAN42♥♦K=+0
-2.8Round 15🇨🇦 CANADA163♦♦2+2-6
-2.8Round 16🇳🇴 NORWAY25♦♠A-3+3
-2.9Round 1🇸🇬 SINGAPORE182♦♥A+1-6
-2.9Round 2🇯🇵 JAPAN203NT♦5-1-12
-3.0Round 16🇳🇴 NORWAY183NT♥6+1-1
-3.1Round 2🇯🇵 JAPAN54♥♣A-1-5
-3.2Round 13🇮🇱 ISRAEL44♠x♠7-2-4
-3.4Round 8🇮🇹 ITALY143♠♣A-1-4
-3.4Round 8🇮🇹 ITALY194♠♣A=+0
-3.4Round 10🇧🇷 BRAZIL93NT♣K-1-5
-3.5Round 2🇯🇵 JAPAN124♥♦7-1-11
-3.5Round 5🇪🇬 EGYPT52♦♥K=-5
-3.5Round 13🇮🇱 ISRAEL122♠♣J+1+0
-3.6Round 5🇪🇬 EGYPT64♦♣6-1-6
-3.6Round 15🇨🇦 CANADA13♣♦4=+0
-3.7Round 16🇳🇴 NORWAY76♥♣Q+1-8
-3.8Round 2🇯🇵 JAPAN62♠♣Q+2-10
-3.8Round 5🇪🇬 EGYPT191NT♣10+1-6
-3.8Round 6🇵🇱 POLAND104♠♥K-1-5
-3.8Round 16🇳🇴 NORWAY164♠♣6-1-5
-3.9Round 8🇮🇹 ITALY123NT♥7-1-5
-3.9Round 11🇹🇭 THAILAND135♠x♣K+1-11
-3.9Round 15🇨🇦 CANADA152♠♣K+1-10
-4.1Round 6🇵🇱 POLAND53♠♦6+1-10
-4.1Round 16🇳🇴 NORWAY102♣♥7+3-10
-4.2Round 7🇦🇺 AUSTRALIA44♥x♣A-1+7
-4.2Round 7🇦🇺 AUSTRALIA153NT♦4-1-5
-4.3Round 10🇧🇷 BRAZIL13NT♥9+3-2
-4.4Round 13🇮🇱 ISRAEL164♥♦J+1-1
-4.5Round 6🇵🇱 POLAND123♣♠10=-5
-4.6Round 1🇸🇬 SINGAPORE103NT♠9+3+17
-4.6Round 1🇸🇬 SINGAPORE154♥♦Q=-8
-4.6Round 10🇧🇷 BRAZIL201NT♥3+1-1
-4.9Round 8🇮🇹 ITALY83NT♥10+1-4
-5.0Round 16🇳🇴 NORWAY92♣x♠A-2-5
-5.1Round 1🇸🇬 SINGAPORE24♦x♣5-2+2
-5.1Round 6🇵🇱 POLAND22♠♣5+2+2
-5.3Round 2🇯🇵 JAPAN154♠♠2-2-11
-5.3Round 7🇦🇺 AUSTRALIA164♥♣A=-3
-5.4Round 2🇯🇵 JAPAN72♣♥5-2+9
-5.6Round 1🇸🇬 SINGAPORE123♠♦4=-7
-5.6Round 15🇨🇦 CANADA124♥♠J-1-12
-6.1Round 5🇪🇬 EGYPT14♠♣10+2-14
-6.1Round 7🇦🇺 AUSTRALIA186♠♠6=+0
-6.2Round 1🇸🇬 SINGAPORE167♣♦3=+0
-6.2Round 7🇦🇺 AUSTRALIA121NT♥4+4-9
-6.2Round 8🇮🇹 ITALY114♠♦Q-1-8
-6.2Round 8🇮🇹 ITALY135♦♦2=+0
-6.5Round 15🇨🇦 CANADA64♥x♣A=-10
-7.6Round 15🇨🇦 CANADA106♠♣4-1-13
-8.3Round 10🇧🇷 BRAZIL194♥♠4=+0
-8.4Round 5🇪🇬 EGYPT135♣x♠K-1-12
-8.7Round 11🇹🇭 THAILAND83NTx♥8=-9
-8.7Round 16🇳🇴 NORWAY153♣♦5-1-12
-8.9Round 8🇮🇹 ITALY56♠♥Q-2-6
-9.1Round 13🇮🇱 ISRAEL93NT♣5=-6
-9.4Round 5🇪🇬 EGYPT183NT♠10+1-1
-9.8Round 11🇹🇭 THAILAND23NTx♠5=-10
-11.1Round 6🇵🇱 POLAND203NT♦6=-10
-15.8Round 11🇹🇭 THAILAND36♦x♣9=-16