🇸🇬 LEE Derek Cheng Feng · SINGAPORE

94rank
-62.2Butler · 196 bds
-0.32per board
±4.7swing
-0.11vs par /bd · #69/115
-0.43adjusted /bd
Butler per round: -2 -39.7 61.6 0.7 -7.5 15.5 -10.9 -2.9 2.5 -17.9 -18.4 -24.7 -15.8 -2.7by round

vs par split: bidding +0.10 · play -0.19

Strength of schedule: opponents averaged -0.11/bd (an easy draw) → opponent-adjusted -0.43/bd

Card play — on target: opening leads 79.2% #55 of 115 · declarer play 78.4% #33 of 115 · defence 78.0% #100 of 115

Card play by contract type — on target
vs NTvs a suit
Opening leads81.8% (11)78.4% (37)
Declarer play92.3% (13)70.8% (24)
Defence66.7% (27)82.2% (73)

Opening leads by suit led: ♠ 80.0% (10) · ♥ 85.7% (14) · ♦ 90.0% (10) · ♣ 64.3% (14)

vs par by strain: NT -0.43 (61) · a suit +0.06 (134)

vs par by level: part-score -0.70 (53) · game +0.30 (124) · slam -1.00 (18)

By role: declaring -0.38/bd (-2.51 vs par · 96) · defending -0.25/bd (+2.20 vs par · 100)

By vulnerability: vulnerable -0.35/bd (-0.07 vs par · 98) · not vulnerable -0.28/bd (-0.14 vs par · 98)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2R.ChanSARKAR ANINDRA – S.MitraOpen14-2.0-0.14+1.14
Round 3R.ChanT.Walsh – S.HuangClosed14-39.7-2.84-2.57
Round 5R.ChanB.Ellece – G.MaeleClosed14+61.6+4.40+5.93
Round 6R.ChanY.Tai – H.HuangClosed14+0.7+0.05+1.07
Round 8R.ChanD.Gullberg – M.GronkvistOpen14-7.5-0.54-0.57
Round 10R.ChanW.Zhu – E.WuClosed14+15.5+1.11+1.29
Round 11R.ChanT.Coudert – C.LorenziniOpen14-10.9-0.78-0.86
Round 12R.ChanN.Jacob – G.CouttsOpen14-2.9-0.21-3.64
Round 13R.ChanX.Xia – L.ZhangClosed14+2.5+0.18+1.14
Round 14R.ChanK.Ellingsen – M.EideOpen14-17.9-1.28-0.71
Round 15R.ChanT.Van Overbeeke – T.PolakOpen14-18.4-1.31+1.00
Round 16R.ChanP.Chan – L.LamOpen14-24.7-1.76-1.07
Round 20R.ChanS.Williams – J.ThompsonOpen14-15.8-1.13-2.86
Round 21R.ChanM.Santa Ana – F.Von BrudersdorffOpen14-2.7-0.19-0.79

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 10🇺🇸 USA 2204♥xx♦2-2+15
+12.8Round 2🇮🇳 INDIA177♥♥6=+11
+11.7Round 5BOTSWANA36♠♥J-1+20
+10.1Round 6🇹🇼 CHINESE TAIPEI235♠x♥A-1+13
+9.5Round 6🇹🇼 CHINESE TAIPEI204♥♣A=+9
+9.2Round 5BOTSWANA15♦♥9-1+11
+9.0Round 5BOTSWANA54♦x♥8-3+0
+8.3Round 14🇳🇴 NORWAY223NT♥Q=+11
+8.2Round 8🇸🇪 SWEDEN174♥♦3=+7
+7.8Round 12🇳🇿 NEW ZEALAND283NT♥A=-1
+7.5Round 5BOTSWANA103♠♦9-1+11
+7.4Round 21🇦🇷 ARGENTINA83NT♥2=+7
+7.3Round 6🇹🇼 CHINESE TAIPEI183NT♥2+3+11
+6.4Round 5BOTSWANA132♦♣K-3+5
+6.3Round 20🇦🇺 AUSTRALIA206♣♦9=-2
+6.0Round 13🇨🇳 CHINA36♣♦K=+0
+5.8Round 21🇦🇷 ARGENTINA44♠♥2+2+13
+5.6Round 13🇨🇳 CHINA12♣x♥9-2+4
+5.4Round 20🇦🇺 AUSTRALIA164♠♣K=+7
+5.4Round 21🇦🇷 ARGENTINA102NT♣4+1+10
+5.3Round 2🇮🇳 INDIA185♦♠A-1+10
+5.3Round 11🇫🇷 FRANCE95♣♠K=+5
+5.2Round 5BOTSWANA23NT♣2=+11
+5.1Round 13🇨🇳 CHINA127♥♥T-1+14
+5.1Round 13🇨🇳 CHINA133NT♦6=-1
+5.0Round 8🇸🇪 SWEDEN274♥♦9-1+10
+4.7Round 10🇺🇸 USA 2264♥♦9-4+7
+4.7Round 14🇳🇴 NORWAY262NT♠10+1+10
+4.2Round 5BOTSWANA44♥♦Q+2+5
+4.2Round 16🇭🇰 CHINA HONG KONG231NT♥5+1+0
+4.1Round 11🇫🇷 FRANCE74♥♠A-1-1
+4.0Round 21🇦🇷 ARGENTINA117♥♥5=+0
+3.9Round 21🇦🇷 ARGENTINA53♥♠8-1+5
+3.7Round 5BOTSWANA74♠♥A+2+13
+3.7Round 6🇹🇼 CHINESE TAIPEI164♠♣9-2+11
+3.6Round 10🇺🇸 USA 2214♥♦10-1+10
+3.5Round 8🇸🇪 SWEDEN193♥♣K-2+5
+3.5Round 8🇸🇪 SWEDEN243NT♥3=+7
+3.3Round 3🇨🇦 CANADA13♠♦J=+1
+3.0Round 15🇳🇱 NETHERLANDS32♦♠6=+6
+3.0Round 20🇦🇺 AUSTRALIA214♠♣7+2+2
+2.9Round 5BOTSWANA81♥♠2+3+6
+2.9Round 10🇺🇸 USA 2275♥♠K-2+5
+2.8Round 2🇮🇳 INDIA234♥♣6+1+1
+2.7Round 2🇮🇳 INDIA264♥♣K-1+12
+2.5Round 15🇳🇱 NETHERLANDS81NT♠A-3+2
+2.4Round 20🇦🇺 AUSTRALIA263NT♥K+1+1
+2.3Round 12🇳🇿 NEW ZEALAND227♣x♦5-4-7
+2.3Round 15🇳🇱 NETHERLANDS13NT♠10=+0
+2.3Round 15🇳🇱 NETHERLANDS25♦♥6-1+5
+2.2Round 5BOTSWANA93NT♠10+2+1
+2.2Round 8🇸🇪 SWEDEN254♠♦A=-1
+2.2Round 12🇳🇿 NEW ZEALAND273NT♥5+3-10
+2.1Round 5BOTSWANA63NT♣2+2+2
+2.1Round 16🇭🇰 CHINA HONG KONG194♥♥10-4+2
+2.0Round 11🇫🇷 FRANCE33NT♠4+3+2
+2.0Round 16🇭🇰 CHINA HONG KONG252♠♦6-2-1
+1.9Round 12🇳🇿 NEW ZEALAND175♣♥J+1+2
+1.8Round 6🇹🇼 CHINESE TAIPEI246♠♣9-1+11
+1.7Round 11🇫🇷 FRANCE122♠♣J+1+0
+1.7Round 15🇳🇱 NETHERLANDS63NT♥4+1+17
+1.5Round 12🇳🇿 NEW ZEALAND153♣♠6=+0
+1.4Round 11🇫🇷 FRANCE63NT♥T-1+6
+1.4Round 14🇳🇴 NORWAY274♠♥7+1+1
+1.3Round 6🇹🇼 CHINESE TAIPEI263NT♠8+1+0
+1.2Round 6🇹🇼 CHINESE TAIPEI173NT♠K-2+5
+1.1Round 8🇸🇪 SWEDEN262♠♣Q+2-10
+1.1Round 10🇺🇸 USA 2152♠♥2-1+7
+1.1Round 12🇳🇿 NEW ZEALAND263NT♥7+3-13
+1.0Round 21🇦🇷 ARGENTINA13NT♥8-1+2
+0.8Round 16🇭🇰 CHINA HONG KONG243NT♠5=+0
+0.8Round 21🇦🇷 ARGENTINA124♥♣10=+0
+0.7Round 3🇨🇦 CANADA83NT♥Q-1+5
+0.7Round 10🇺🇸 USA 2164♥♣Q=+0
+0.7Round 13🇨🇳 CHINA143NT♠J=-1
+0.7Round 15🇳🇱 NETHERLANDS114♥♣3+1+0
+0.6Round 6🇹🇼 CHINESE TAIPEI154♠♣6+1+0
+0.6Round 14🇳🇴 NORWAY193NT♣J+1+0
+0.5Round 20🇦🇺 AUSTRALIA223NT♥9+1+0
+0.5Round 20🇦🇺 AUSTRALIA231NT♣5+1-10
+0.5Round 21🇦🇷 ARGENTINA62♠♥Q=-1
+0.3Round 2🇮🇳 INDIA213NT♣2+2+1
+0.3Round 12🇳🇿 NEW ZEALAND203NT♦6+2-12
+0.3Round 16🇭🇰 CHINA HONG KONG283NT♠10+1+0
+0.2Round 11🇫🇷 FRANCE141NT♠9+2-1
+0.0Round 2🇮🇳 INDIA161NT♦5+1+0
+0.0Round 10🇺🇸 USA 2244♠♥K=+0
+0.0Round 14🇳🇴 NORWAY164♥♠2+1+0
-0.0Round 15🇳🇱 NETHERLANDS124♠♦Q+1+0
-0.0Round 21🇦🇷 ARGENTINA73♠♥7=+8
-0.1Round 5BOTSWANA113NT♥9=+1
-0.1Round 11🇫🇷 FRANCE103♣♥9=+0
-0.1Round 13🇨🇳 CHINA92♠♦J+2+4
-0.2Round 13🇨🇳 CHINA86♠♣4+1-11
-0.2Round 20🇦🇺 AUSTRALIA284♥♠A+1+0
-0.3Round 14🇳🇴 NORWAY283NT♣Q+2+0
-0.4Round 16🇭🇰 CHINA HONG KONG166♠♥5=+0
-0.5Round 10🇺🇸 USA 2181NT♠5+1-6
-0.6Round 10🇺🇸 USA 2194♠♥J=+0
-0.7Round 12🇳🇿 NEW ZEALAND163♥♠Q-2-1
-0.8Round 6🇹🇼 CHINESE TAIPEI273NT♠4+3-11
-0.9Round 2🇮🇳 INDIA204♥♠7-2-7
-0.9Round 3🇨🇦 CANADA34♥♦3+1-1
-1.0Round 5BOTSWANA14Pass-3
-1.0Round 11🇫🇷 FRANCE83NT♣A+1+0
-1.1Round 12🇳🇿 NEW ZEALAND254♥♣2+2-1
-1.1Round 13🇨🇳 CHINA64♠♦T+1+13
-1.1Round 13🇨🇳 CHINA103♣♠2-1-6
-1.1Round 14🇳🇴 NORWAY233NT♠3+1-1
-1.1Round 15🇳🇱 NETHERLANDS104♠♦10=+0
-1.1Round 16🇭🇰 CHINA HONG KONG204♥♠Q+2+13
-1.2Round 3🇨🇦 CANADA124♠♥J-2-7
-1.2Round 20🇦🇺 AUSTRALIA184♥♥10+1+0
-1.3Round 3🇨🇦 CANADA65♦♠A-2-2
-1.3Round 3🇨🇦 CANADA91♠♥2+4+6
-1.3Round 11🇫🇷 FRANCE25♥x♠J-1+0
-1.4Round 5BOTSWANA124♠♦4=+0
-1.4Round 12🇳🇿 NEW ZEALAND194♥♣2=+0
-1.5Round 3🇨🇦 CANADA133♥♥2=+0
-1.5Round 8🇸🇪 SWEDEN232♦♣Q=+0
-1.5Round 14🇳🇴 NORWAY174♠♦A+2-11
-1.6Round 6🇹🇼 CHINESE TAIPEI254♠♠8+1+0
-1.6Round 11🇫🇷 FRANCE13♣♥9=+0
-1.6Round 15🇳🇱 NETHERLANDS144♠♣10+3-2
-1.7Round 10🇺🇸 USA 2224♥♠A+1-11
-1.8Round 8🇸🇪 SWEDEN162♥♦J-2-11
-1.8Round 10🇺🇸 USA 2283♣♥9=+0
-1.8Round 11🇫🇷 FRANCE113NT♠K=+1
-1.9Round 10🇺🇸 USA 2174♦♠K=-7
-2.0Round 10🇺🇸 USA 2234♠♥6+2-1
-2.0Round 13🇨🇳 CHINA22♥♦5=+7
-2.0Round 13🇨🇳 CHINA52NT♣K=+1
-2.2Round 2🇮🇳 INDIA254♠♦K=+0
-2.2Round 11🇫🇷 FRANCE54♠♥A+1+0
-2.2Round 14🇳🇴 NORWAY244♥♠K+2+11
-2.3Round 3🇨🇦 CANADA74♥♠J+2-1
-2.3Round 20🇦🇺 AUSTRALIA173♥♦9-3+7
-2.4Round 8🇸🇪 SWEDEN181♠♦J=+0
-2.4Round 8🇸🇪 SWEDEN204♠♥6+1+13
-2.4Round 8🇸🇪 SWEDEN283♦♥9-1-5
-2.5Round 14🇳🇴 NORWAY253NT♣8+2-1
-2.5Round 16🇭🇰 CHINA HONG KONG153NT♣J=+1
-2.5Round 21🇦🇷 ARGENTINA143♠♠7+1-1
-2.6Round 16🇭🇰 CHINA HONG KONG212♥♣A+1-7
-2.7Round 12🇳🇿 NEW ZEALAND216♥♠A=+0
-2.8Round 6🇹🇼 CHINESE TAIPEI194♠♦A=+0
-2.8Round 10🇺🇸 USA 2254♥♣K+2-1
-2.8Round 13🇨🇳 CHINA43♥♣Q-2-2
-3.0Round 2🇮🇳 INDIA283NT♣J+1+0
-3.0Round 12🇳🇿 NEW ZEALAND184♠♥6=+0
-3.1Round 2🇮🇳 INDIA274♥x♣T-2+3
-3.3Round 3🇨🇦 CANADA23NT♥J-2-11
-3.3Round 15🇳🇱 NETHERLANDS77♠♣Q=+0
-3.4Round 3🇨🇦 CANADA53♦♠K+1+0
-3.4Round 20🇦🇺 AUSTRALIA275♠x♣2-1-11
-3.5Round 2🇮🇳 INDIA156♣♥A=+2
-3.7Round 3🇨🇦 CANADA101NT♣10-3-5
-3.8Round 14🇳🇴 NORWAY183NT♦6=-7
-3.9Round 15🇳🇱 NETHERLANDS96♦x♥A-4-4
-4.0Round 20🇦🇺 AUSTRALIA193NT♥A-1-10
-4.0Round 21🇦🇷 ARGENTINA35♣♦9+1-13
-4.1Round 15🇳🇱 NETHERLANDS52♠♦5-1-5
-4.1Round 20🇦🇺 AUSTRALIA244NT♦2+1+0
-4.3Round 2🇮🇳 INDIA223NT♥5-2-6
-4.3Round 14🇳🇴 NORWAY213NT♠10=+1
-4.3Round 15🇳🇱 NETHERLANDS43♠♥6-3+7
-4.3Round 16🇭🇰 CHINA HONG KONG223NT♠8+1+11
-4.4Round 2🇮🇳 INDIA243NT♠4-2-6
-4.4Round 13🇨🇳 CHINA114♠♣8=-7
-4.5Round 2🇮🇳 INDIA194♠♥Q-1-5
-4.5Round 16🇭🇰 CHINA HONG KONG173NT♥2-1-4
-4.6Round 16🇭🇰 CHINA HONG KONG185♥♣5+1-14
-4.7Round 12🇳🇿 NEW ZEALAND233NT♠K+4-6
-4.8Round 16🇭🇰 CHINA HONG KONG275♥x♠A=-5
-5.3Round 21🇦🇷 ARGENTINA133NT♦J-2-13
-5.8Round 20🇦🇺 AUSTRALIA252♠♠7=-11
-6.3Round 13🇨🇳 CHINA73NT♠3=+1
-6.4Round 12🇳🇿 NEW ZEALAND244♥♠A+1-2
-6.6Round 8🇸🇪 SWEDEN214♠♣3-1-5
-6.7Round 8🇸🇪 SWEDEN225♠♣A-1-9
-6.7Round 21🇦🇷 ARGENTINA96♠♠8-1-13
-7.1Round 6🇹🇼 CHINESE TAIPEI216♦♣K-1-12
-7.2Round 3🇨🇦 CANADA143NT♦2-2+0
-7.2Round 8🇸🇪 SWEDEN154♠x♣K-2-9
-7.5Round 3🇨🇦 CANADA42♥♠4-2-7
-7.6Round 6🇹🇼 CHINESE TAIPEI283NT♥3=-7
-8.2Round 14🇳🇴 NORWAY151NT♣2-1-11
-8.3Round 11🇫🇷 FRANCE134♥♣A-1-12
-9.0Round 14🇳🇴 NORWAY204♠♦3-3-13
-9.3Round 11🇫🇷 FRANCE45♦♣5-1-12
-9.3Round 16🇭🇰 CHINA HONG KONG261♣♥3+3-11
-10.1Round 3🇨🇦 CANADA117♣♣3-1-14
-12.6Round 15🇳🇱 NETHERLANDS134♥x♦2-2-12
-12.9Round 20🇦🇺 AUSTRALIA156♥♠4-1-13
-13.0Round 21🇦🇷 ARGENTINA24♦x♠Q=-15
-14.9Round 6🇹🇼 CHINESE TAIPEI222♠x♦A=-15