🇭🇰 LUNG Ka-Cheung · HONG KONG CHINA

142rank
-248.2Butler · 196 bds
-1.27per board
±4.4swing
-1.47vs par /bd · #137/138
-1.26adjusted /bd
Butler per round: -42.4 -12 -57.6 -17.5 -6.3 -40.6 4.5 -20.8 -33 4.9 -18.1 -32.6 32.7 -9.4by round

vs par split: bidding -0.87 · play -0.60

Strength of schedule: opponents averaged +0.00/bd (an average draw) → opponent-adjusted -1.26/bd

Card play — on target: opening leads 81.1% #60 of 138 · declarer play 70.8% #95 of 138 · defence 81.4% #124 of 138

Bidding activity — not a pass: 41.3% #96 of 138 (213/516)

Card play by contract type — on target
vs NTvs a suit
Opening leads70.0% (10)83.7% (43)
Declarer play72.7% (11)70.3% (37)
Defence78.6% (28)82.4% (74)

Opening leads by suit led: ♠ 83.3% (12) · ♥ 84.6% (13) · ♦ 85.7% (14) · ♣ 71.4% (14)

vs par by strain: NT -1.54 (54) · a suit -1.44 (142)

vs par by level: part-score -1.15 (91) · game -1.76 (97) · slam -1.50 (8)

By role: declaring -1.65/bd (-3.73 vs par · 94) · defending -0.92/bd (+0.62 vs par · 102)

By vulnerability: vulnerable -1.45/bd (-1.76 vs par · 98) · not vulnerable -1.09/bd (-1.17 vs par · 98)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2S.ChanD.Crombie – N.StuckeyOpen14-42.4-3.03-5.57
Round 4S.ChanA.Belkouch – G.CambournacOpen14-12.0-0.86-1.50
Round 5S.ChanR.Milner – H.LallOpen14-57.6-4.11-5.43
Round 6S.ChanS.Ahmed – D.HanzalaClosed14-17.5-1.25-1.29
Round 8S.ChanM.Hirata – A.OmasaOpen14-6.3-0.45+0.64
Round 9S.ChanQ.Li – J.DaiOpen14-40.6-2.90-0.79
Round 11S.ChanH.Camberos – J.RuedaOpen14+4.5+0.32+2.14
Round 14S.ChanR.Goenka – S.GuptaOpen14-20.8-1.49-1.86
Round 15S.ChanH.Vinciguerra – M.AbecassisOpen14-33.0-2.36-3.29
Round 17S.ChanJ.Holland – A.MouldClosed14+4.9+0.35-0.86
Round 18S.ChanH.Berger – P.ZelnikClosed14-18.1-1.29-1.64
Round 20S.ChanJ.Meckstroth – M.KamilOpen14-32.6-2.33-3.71
Round 21S.ChanC.Kuo – C.WuOpen14+32.7+2.34+3.71
Round 22S.ChanI.Thomson – T.BrownOpen14-9.4-0.67-1.14

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
+15.2Round 21🇹🇼 CHINESE TAIPEI97♥♥6-1+17
+12.4Round 17🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND102♠x♠4=+13
+9.4Round 11🇦🇷 ARGENTINA116NT♠5-2+14
+9.3Round 21🇹🇼 CHINESE TAIPEI41NT♦7-3+14
+8.0Round 18🇦🇹 AUSTRIA261NT♣8=+11
+7.6Round 22🇦🇺 AUSTRALIA163NT♥K-3+14
+7.6Round 22🇦🇺 AUSTRALIA224♥♠Q=+0
+7.2Round 11🇦🇷 ARGENTINA123NT♦K-2+13
+6.8Round 14🇮🇳 INDIA193♥♣9+2+10
+6.3Round 6🇧🇩 BANGLADESH252♦♣K+2+7
+5.5Round 8🇯🇵 JAPAN182♥♦8+1+7
+4.4Round 14🇮🇳 INDIA184♥♦2=+0
+4.3Round 2🇳🇿 NEW ZEALAND163♦♠A=+0
+3.8Round 9🇨🇳 CHINA143NT♥A-1+11
+3.8Round 18🇦🇹 AUSTRIA243NT♦6-4+7
+3.8Round 22🇦🇺 AUSTRALIA192♠♣A=+5
+3.7Round 6🇧🇩 BANGLADESH165♥♠A=+11
+3.5Round 2🇳🇿 NEW ZEALAND281NT♥5-2+5
+3.5Round 18🇦🇹 AUSTRIA283♥♠3+3+6
+3.5Round 21🇹🇼 CHINESE TAIPEI123♣♠2-3+0
+3.3Round 21🇹🇼 CHINESE TAIPEI82♠♥5-1+5
+3.2Round 21🇹🇼 CHINESE TAIPEI15♥♠5-2+5
+3.1Round 8🇯🇵 JAPAN195♦x♣5-3+4
+2.9Round 11🇦🇷 ARGENTINA102♣♠K+3+15
+2.7Round 8🇯🇵 JAPAN214♠♦2+1+0
+2.6Round 6🇧🇩 BANGLADESH233♦♥Q=-9
+2.4Round 21🇹🇼 CHINESE TAIPEI104♠♥5-1+12
+2.3Round 6🇧🇩 BANGLADESH213NT♣3+1+1
+2.3Round 11🇦🇷 ARGENTINA11♠♦Q+1-7
+2.0Round 5🇺🇸 USA253NT♠2+3+1
+2.0Round 21🇹🇼 CHINESE TAIPEI63♣♠4-1+10
+1.9Round 4🇲🇦 MOROCCO154♥♦Q=+11
+1.9Round 8🇯🇵 JAPAN262♥♣2+1+0
+1.8Round 17🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND123♦♠T=+0
+1.8Round 21🇹🇼 CHINESE TAIPEI74♠x♥6-2+0
+1.7Round 17🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND33NT♣Q=+0
+1.6Round 4🇲🇦 MOROCCO273♥♦Q-2-5
+1.6Round 17🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND24♠♣T+1+0
+1.4Round 17🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND54♠♥4-1+5
+1.4Round 22🇦🇺 AUSTRALIA254♥♦A+1+0
+1.3Round 8🇯🇵 JAPAN172♠♠4+2+2
+1.3Round 15🇫🇷 FRANCE144♥♣A=-1
+1.3Round 21🇹🇼 CHINESE TAIPEI21♠♦4+3-10
+1.2Round 20🇺🇸 USA1224♥♦9+1+0
+1.2Round 22🇦🇺 AUSTRALIA204♠♣Q-1+6
+1.1Round 8🇯🇵 JAPAN271NT♠4-2+8
+1.0Round 2🇳🇿 NEW ZEALAND263NT♠2+1+0
+1.0Round 11🇦🇷 ARGENTINA23♥♦A=+0
+1.0Round 11🇦🇷 ARGENTINA53♦♥2=-1
+0.9Round 4🇲🇦 MOROCCO283♥♥2-1+3
+0.8Round 4🇲🇦 MOROCCO184♥♠T+1-11
+0.8Round 6🇧🇩 BANGLADESH182♥♣K=+0
+0.8Round 9🇨🇳 CHINA31NTx♥6-1+11
+0.8Round 18🇦🇹 AUSTRIA223NT♥3=+1
+0.7Round 5🇺🇸 USA264♠♠3=+0
+0.7Round 17🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND132♣♦K=-1
+0.6Round 2🇳🇿 NEW ZEALAND214♠♥K-2-9
+0.6Round 14🇮🇳 INDIA153NT♠9+1+0
+0.6Round 20🇺🇸 USA1264♠♥2+1+0
+0.5Round 8🇯🇵 JAPAN202♠♦2=-5
+0.5Round 21🇹🇼 CHINESE TAIPEI114♠♦8+2+1
+0.5Round 22🇦🇺 AUSTRALIA154♥♣9=+1
+0.4Round 2🇳🇿 NEW ZEALAND223NT♠8+2-11
+0.4Round 11🇦🇷 ARGENTINA34♠♣Q-1+10
+0.3Round 4🇲🇦 MOROCCO222♠♦T-1-2
+0.3Round 8🇯🇵 JAPAN234♠♦2=+1
+0.3Round 14🇮🇳 INDIA242♠♣K-1+2
+0.3Round 20🇺🇸 USA1233NT♥5+2+0
+0.3Round 22🇦🇺 AUSTRALIA283♥♣T-1-2
+0.2Round 4🇲🇦 MOROCCO173NT♦T+1+1
+0.2Round 11🇦🇷 ARGENTINA133♠♥8=+0
+0.2Round 15🇫🇷 FRANCE113♣♠Q+1-5
+0.1Round 15🇫🇷 FRANCE105♠♠9=+0
-0.0Round 5🇺🇸 USA215♥♣K-1+2
-0.0Round 5🇺🇸 USA2104♠♦6=+0
-0.0Round 9🇨🇳 CHINA64♠♥6=+0
+0.0Round 20🇺🇸 USA1202♥♠6+3+10
-0.1Round 4🇲🇦 MOROCCO234♠♥2+1+13
-0.1Round 8🇯🇵 JAPAN282♠♣A=+0
-0.1Round 15🇫🇷 FRANCE73♥♠5+1-10
-0.1Round 17🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND42♦♣7=+1
-0.1Round 20🇺🇸 USA1173NT♦5+2-11
-0.1Round 21🇹🇼 CHINESE TAIPEI142♥♣K+2+6
-0.2Round 4🇲🇦 MOROCCO163NT♥5=+0
-0.2Round 9🇨🇳 CHINA124♥♣J=+0
-0.2Round 20🇺🇸 USA1153♥♠A=-1
-0.3Round 8🇯🇵 JAPAN223NT♠J=-1
-0.3Round 14🇮🇳 INDIA233NT♠3+2+0
-0.5Round 21🇹🇼 CHINESE TAIPEI134♠♥Q=-1
-0.5Round 22🇦🇺 AUSTRALIA214♠♥Q+1+0
-0.6Round 9🇨🇳 CHINA54♥♠K+2+11
-0.6Round 15🇫🇷 FRANCE42♥♣A=+0
-0.7Round 4🇲🇦 MOROCCO192♦♥4=-6
-0.7Round 20🇺🇸 USA1192♠♥Q-2+1
-0.8Round 17🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND14♥♠2=+0
-0.8Round 17🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND61NT♥6+2-6
-0.8Round 17🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND93NT♥J+2-11
-0.9Round 6🇧🇩 BANGLADESH173NT♥Q-3+2
-0.9Round 17🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND71NT♦A+1+0
-1.0Round 14🇮🇳 INDIA163♦♠K+2-1
-1.0Round 14🇮🇳 INDIA222♠♥T+1+0
-1.0Round 14🇮🇳 INDIA283♠♦9=+0
-1.0Round 15🇫🇷 FRANCE126♠♦A=+0
-1.0Round 18🇦🇹 AUSTRIA154♥♦2+1+0
-1.0Round 20🇺🇸 USA1244♥♣9+1-1
-1.1Round 2🇳🇿 NEW ZEALAND251NT♠2-2+0
-1.1Round 11🇦🇷 ARGENTINA84♥♣4-2+1
-1.1Round 18🇦🇹 AUSTRIA183♥♦K-2-1
-1.3Round 5🇺🇸 USA223NT♣3+3-11
-1.3Round 8🇯🇵 JAPAN252♠♣4-3+0
-1.4Round 11🇦🇷 ARGENTINA43NT♠J=-3
-1.5Round 6🇧🇩 BANGLADESH262♠♦7=+0
-1.5Round 22🇦🇺 AUSTRALIA241NT♥2+1-6
-1.6Round 11🇦🇷 ARGENTINA91♠♦Q+1+0
-1.6Round 14🇮🇳 INDIA203NT♠2+1-4
-1.7Round 6🇧🇩 BANGLADESH244♠♥6=-1
-1.8Round 4🇲🇦 MOROCCO243♥♦A+1-1
-1.8Round 9🇨🇳 CHINA133NT♦4+2+0
-1.8Round 11🇦🇷 ARGENTINA73♣♠6+1+0
-1.8Round 18🇦🇹 AUSTRIA275♠x♦K-1+0
-1.8Round 22🇦🇺 AUSTRALIA271NT♣A+3-7
-1.9Round 2🇳🇿 NEW ZEALAND232♦♠6=-1
-1.9Round 6🇧🇩 BANGLADESH222♥♣6=-5
-2.0Round 5🇺🇸 USA272NT♦3+1-1
-2.0Round 15🇫🇷 FRANCE31NT♣A-2+1
-2.1Round 15🇫🇷 FRANCE93♥♦9=+0
-2.2Round 4🇲🇦 MOROCCO253♣♠A-1-10
-2.2Round 8🇯🇵 JAPAN242♥♦A=+0
-2.2Round 18🇦🇹 AUSTRIA232♠♦J+3-2
-2.3Round 2🇳🇿 NEW ZEALAND246♠x♦A-4+0
-2.3Round 9🇨🇳 CHINA93♥♦A=-1
-2.3Round 14🇮🇳 INDIA254♥♦A-1-5
-2.3Round 15🇫🇷 FRANCE64♥♣3-1+5
-2.3Round 20🇺🇸 USA1161NT♠6-1-4
-2.4Round 18🇦🇹 AUSTRIA162♥♦K-2+0
-2.4Round 18🇦🇹 AUSTRIA255♦x♠3-1+0
-2.5Round 9🇨🇳 CHINA83♥♣4-1-4
-2.5Round 17🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND81♠♣6+1-1
-2.6Round 6🇧🇩 BANGLADESH272♥♦3=-1
-2.6Round 21🇹🇼 CHINESE TAIPEI32♥♦9+1+0
-2.8Round 4🇲🇦 MOROCCO212♥♦A=-1
-2.9Round 5🇺🇸 USA242♠♣Q=+0
-3.0Round 2🇳🇿 NEW ZEALAND195♣♥4=-11
-3.0Round 5🇺🇸 USA294♥♥4=+0
-3.0Round 20🇺🇸 USA1255♦♣A+1-11
-3.1Round 2🇳🇿 NEW ZEALAND202NT♣J=-11
-3.1Round 9🇨🇳 CHINA73NT♠5=+1
-3.1Round 9🇨🇳 CHINA113NT♠4+2+0
-3.1Round 15🇫🇷 FRANCE14♥♥3+1+0
-3.3Round 2🇳🇿 NEW ZEALAND153NT♦4+2-12
-3.4Round 9🇨🇳 CHINA41♠♣6=-5
-3.4Round 18🇦🇹 AUSTRIA193NT♥2+3-14
-3.6Round 17🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND112♠♥T=-6
-3.9Round 14🇮🇳 INDIA273♠♠2-1-5
-4.0Round 4🇲🇦 MOROCCO203♠♥8-2-3
-4.0Round 15🇫🇷 FRANCE81NT♣5=-6
-4.1Round 20🇺🇸 USA1283NT♠A-1-5
-4.2Round 15🇫🇷 FRANCE133♦♦5-2-8
-4.4Round 11🇦🇷 ARGENTINA144♠x♦A-1-5
-4.6Round 18🇦🇹 AUSTRIA213♥♣5+1-8
-5.0Round 6🇧🇩 BANGLADESH283NT♠5+2-1
-5.1Round 20🇺🇸 USA1274♠♥Q-1-10
-5.2Round 17🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND145♣♦2-2-6
-5.5Round 14🇮🇳 INDIA174♦♣J+1-2
-5.6Round 6🇧🇩 BANGLADESH204♠♣6+1-2
-5.9Round 4🇲🇦 MOROCCO264♥♦K+1-10
-5.9Round 22🇦🇺 AUSTRALIA183♠♠4=-11
-6.0Round 22🇦🇺 AUSTRALIA264♥♦K+1-4
-6.1Round 15🇫🇷 FRANCE24♥♦Q-1-12
-6.1Round 18🇦🇹 AUSTRIA204♠x♠K-1-12
-6.3Round 5🇺🇸 USA2124♥♠K+3-14
-6.5Round 9🇨🇳 CHINA24♠♥K+2-11
-6.6Round 21🇹🇼 CHINESE TAIPEI53NT♣8=-7
-6.7Round 6🇧🇩 BANGLADESH152♥♦9=-11
-6.7Round 22🇦🇺 AUSTRALIA174♥♦A=+0
-6.8Round 5🇺🇸 USA283NT♠K=-7
-7.0Round 5🇺🇸 USA2133NT♥Q-2-8
-7.0Round 14🇮🇳 INDIA261NT♥T+1-11
-7.3Round 6🇧🇩 BANGLADESH192♦♠K-5-9
-7.8Round 20🇺🇸 USA1183NT♠A=-5
-7.9Round 9🇨🇳 CHINA104♥x♦Q-1-9
-8.5Round 8🇯🇵 JAPAN164♠♦K=-1
-9.1Round 15🇫🇷 FRANCE53♥♦Q=-10
-9.2Round 18🇦🇹 AUSTRIA176NT♠J+1-11
-9.3Round 5🇺🇸 USA233♠♦T+1-10
-9.3Round 14🇮🇳 INDIA212♠♣T+2-10
-9.4Round 5🇺🇸 USA2143NT♣4+4-14
-9.4Round 22🇦🇺 AUSTRALIA235♠x♣A=-12
-9.6Round 11🇦🇷 ARGENTINA64♥♣7=-7
-10.3Round 8🇯🇵 JAPAN155♣♠A-1-6
-10.4Round 20🇺🇸 USA1213♦♥6+3-15
-11.0Round 2🇳🇿 NEW ZEALAND273NT♦4-2-11
-12.3Round 5🇺🇸 USA2114♥x♦A-3-14
-12.5Round 2🇳🇿 NEW ZEALAND186♥♠Q-1-17
-13.8Round 9🇨🇳 CHINA16♥x♠3-4-15
-14.0Round 2🇳🇿 NEW ZEALAND176NT♥4=+0