🇿🇦 BALKIN Diana · SOUTH AFRICA

112rank
-144.5Butler · 224 bds
-0.65per board
±4.3swing
-0.21vs par /bd · #86/127
-0.51adjusted /bd
Butler per round: 2.5 -7.5 5.3 13.9 11.3 -33.4 -43 -13.6 -28.8 11.5 -26.3 -31 -8.5 3.1by round

vs par split: bidding -0.00 · play -0.21

Strength of schedule: opponents averaged +0.13/bd (a tough draw) → opponent-adjusted -0.51/bd

Card play — on target: opening leads 81.4% #70 of 127 · declarer play 67.7% #108 of 127 · defence 82.6% #101 of 127

Card play by contract type — on target
vs NTvs a suit
Opening leads70.8% (24)88.6% (35)
Declarer play58.1% (31)77.4% (31)
Defence85.4% (41)81.1% (74)

Opening leads by suit led: ♠ 80.0% (15) · ♥ 81.8% (11) · ♦ 75.0% (16) · ♣ 88.2% (17)

vs par by strain: NT +0.13 (86) · a suit -0.42 (138)

vs par by level: part-score -1.09 (90) · game +0.00 (117) · slam +3.00 (17)

By role: declaring -0.36/bd (-2.61 vs par · 109) · defending -0.91/bd (+2.06 vs par · 115)

By vulnerability: vulnerable -0.35/bd (-0.13 vs par · 112) · not vulnerable -0.94/bd (-0.29 vs par · 112)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2K.DriverE.Horsman – B.GroverOpen16+2.5+0.16-1.25
Round 3K.DriverM.Levine – E.WoldClosed16-7.5-0.47+0.25
Round 4K.DriverM.Berkman – N.TymiankerOpen16+5.3+0.33-1.56
Round 6K.DriverA.Yamada – K.OhnoOpen16+13.9+0.87+2.62
Round 7K.DriverM.Machado – E.BarcellosClosed16+11.3+0.71+0.56
Round 8K.DriverP.Schmidt – P.ToffierOpen16-33.4-2.09-1.62
Round 11K.DriverA.Buratti – G.FaillaClosed16-43.0-2.69-2.06
Round 12K.DriverJ.Gueglio – E.ScanavinoClosed16-13.6-0.85+0.62
Round 13K.DriverR.Lin – J.TaoOpen16-28.8-1.80-0.31
Round 15K.DriverC.Thirion – S.FabbricatoreClosed16+11.5+0.72-0.50
Round 16K.DriverD.Zen – S.WanClosed16-26.3-1.64+1.19
Round 17K.DriverR.Sridharan – S.DhakrasClosed16-31.0-1.94-2.88
Round 20K.DriverM.Schoenborn – F.LernerOpen16-8.5-0.53+1.00
Round 21K.DriverW.Lazer – P.GumbyClosed16+3.1+0.19+1.00

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
+11.0Round 21🇦🇺 AUSTRALIA53NT♥7-1+11
+10.5Round 2🇳🇿 NEW ZEALAND206♥♣4-2+13
+10.0Round 6🇯🇵 JAPAN236♠♣5=+8
+9.7Round 2🇳🇿 NEW ZEALAND293NT♦K=+10
+9.4Round 20🇨🇦 CANADA275♥♥4+1+11
+8.9Round 12🇦🇷 ARGENTINA313NT♥3-1+10
+8.7Round 7🇧🇷 BRAZIL166♥♣9=+0
+8.7Round 17🇮🇳 INDIA107♠♠4-1+17
+8.3Round 4🇮🇱 ISRAEL237♦x♠A-1+13
+8.0Round 12🇦🇷 ARGENTINA183NT♣4-1+6
+7.9Round 20🇨🇦 CANADA261NT♥10+3+10
+7.8Round 13🇨🇳 CHINA23NT♥7=+7
+7.6Round 3🇺🇸 USA183NT♣6=+0
+7.4Round 7🇧🇷 BRAZIL143NTx♠6-2+5
+6.4Round 13🇨🇳 CHINA135♣♣A-2+8
+6.0Round 15🇬🇵 GUADELOUPE13NT♦7+2+2
+5.7Round 6🇯🇵 JAPAN291NT♠7-2+8
+5.4Round 13🇨🇳 CHINA73NT♦9-2+13
+5.0Round 4🇮🇱 ISRAEL211NT♦4-4+7
+4.5Round 16🇭🇰 CHINA HONG KONG291NT♠2-1+5
+4.4Round 15🇬🇵 GUADELOUPE113NT♣4=-1
+4.0Round 13🇨🇳 CHINA163NT♠6=-1
+3.9Round 4🇮🇱 ISRAEL191NT♠J=+0
+3.9Round 12🇦🇷 ARGENTINA273♠♦2=+0
+3.8Round 6🇯🇵 JAPAN273NT♠2=+0
+3.8Round 21🇦🇺 AUSTRALIA34♥♦3=+0
+3.8Round 21🇦🇺 AUSTRALIA84♠♦A-1+4
+3.7Round 7🇧🇷 BRAZIL94♠♦Q=-1
+3.7Round 11🇮🇹 ITALY133NT♣4-1+12
+3.7Round 15🇬🇵 GUADELOUPE124♠♦2+1+0
+3.5Round 11🇮🇹 ITALY34♠♦K-1+5
+3.2Round 6🇯🇵 JAPAN213♠♥K=+6
+2.9Round 20🇨🇦 CANADA254♥♠2+2+12
+2.9Round 21🇦🇺 AUSTRALIA153NT♦4+1+4
+2.8Round 3🇺🇸 USA1153NT♠4-1+5
+2.8Round 8🇫🇷 FRANCE222♣♣2=+6
+2.8Round 15🇬🇵 GUADELOUPE33♠♦K+1-1
+2.8Round 16🇭🇰 CHINA HONG KONG184♠♣K-1+12
+2.8Round 20🇨🇦 CANADA211NT♦10-1-1
+2.7Round 3🇺🇸 USA111NT♣3=+6
+2.7Round 4🇮🇱 ISRAEL273NT♣9+2-14
+2.6Round 12🇦🇷 ARGENTINA241NT♥2-1+4
+2.3Round 7🇧🇷 BRAZIL41NT♥2+3+2
+2.3Round 8🇫🇷 FRANCE262NT♦2=+0
+2.3Round 17🇮🇳 INDIA65♥♣5=+0
+2.2Round 11🇮🇹 ITALY162♥♣J+1+1
+2.1Round 2🇳🇿 NEW ZEALAND263NT♥6+2-13
+2.1Round 7🇧🇷 BRAZIL133♥♣10=+7
+2.1Round 11🇮🇹 ITALY122♠♣K=+0
+2.0Round 4🇮🇱 ISRAEL323NT♣Q=+0
+2.0Round 15🇬🇵 GUADELOUPE103♥♦Q=+7
+1.9Round 16🇭🇰 CHINA HONG KONG274♥♣10+1+0
+1.8Round 7🇧🇷 BRAZIL61NT♠7+1+0
+1.8Round 20🇨🇦 CANADA201NT♦7-1+0
+1.7Round 6🇯🇵 JAPAN203♥♦K-1+0
+1.7Round 17🇮🇳 INDIA74♠♦A+1+0
+1.7Round 21🇦🇺 AUSTRALIA72♦♠J+2+0
+1.6Round 3🇺🇸 USA154♠♥10=-1
+1.6Round 4🇮🇱 ISRAEL292♥♦5+2-10
+1.6Round 11🇮🇹 ITALY74♠♦7+1+4
+1.5Round 20🇨🇦 CANADA311♠x♣Q-2-7
+1.4Round 2🇳🇿 NEW ZEALAND176♥♠J+1-11
+1.4Round 2🇳🇿 NEW ZEALAND303NT♣10+2+1
+1.4Round 6🇯🇵 JAPAN303NT♥9=+6
+1.4Round 7🇧🇷 BRAZIL83♥♠3+1+1
+1.4Round 8🇫🇷 FRANCE233♥♣3-2+2
+1.3Round 12🇦🇷 ARGENTINA321NT♦10+5+3
+1.2Round 2🇳🇿 NEW ZEALAND183NT♥10+3+13
+1.1Round 15🇬🇵 GUADELOUPE151NT♥8=-1
+1.1Round 16🇭🇰 CHINA HONG KONG263NT♣4+1+0
+1.0Round 4🇮🇱 ISRAEL282♥♣9+2-6
+1.0Round 6🇯🇵 JAPAN254♥♦4-1+4
+1.0Round 12🇦🇷 ARGENTINA294♥♥2=+0
+1.0Round 15🇬🇵 GUADELOUPE132♥♠A=+0
+1.0Round 17🇮🇳 INDIA134♥♥5+1+1
+0.9Round 3🇺🇸 USA143NT♦2+1+0
+0.9Round 15🇬🇵 GUADELOUPE65♦♠K+2+14
+0.9Round 20🇨🇦 CANADA192♣♦A+1+5
+0.8Round 2🇳🇿 NEW ZEALAND194♠♥J-2-1
+0.8Round 13🇨🇳 CHINA54♠x♣A-1+0
+0.8Round 15🇬🇵 GUADELOUPE84♠♦5=+0
+0.7Round 4🇮🇱 ISRAEL242♠♥J-3+1
+0.7Round 7🇧🇷 BRAZIL122♥♠4=+0
+0.7Round 20🇨🇦 CANADA282♥♦J=+0
+0.6Round 6🇯🇵 JAPAN263NT♦4+2+0
+0.6Round 12🇦🇷 ARGENTINA262♥♠4-1+0
+0.5Round 3🇺🇸 USA1163♦♣J-1+0
+0.5Round 11🇮🇹 ITALY116♥♣A+1+11
+0.3Round 21🇦🇺 AUSTRALIA104♠♦2-1-6
+0.3Round 21🇦🇺 AUSTRALIA166♦♣10=+13
+0.2Round 15🇬🇵 GUADELOUPE44♠♠5+1+0
+0.2Round 15🇬🇵 GUADELOUPE162♥♥2+2-10
+0.1Round 4🇮🇱 ISRAEL204♠♦5=+0
+0.1Round 6🇯🇵 JAPAN282♠♦7+1+0
+0.1Round 12🇦🇷 ARGENTINA304♠♣2+1+1
+0.1Round 16🇭🇰 CHINA HONG KONG245♦♣K+1+11
+0.0Round 2🇳🇿 NEW ZEALAND313NT♦J=+0
+0.0Round 3🇺🇸 USA123NT♣6+1+0
+0.0Round 3🇺🇸 USA193NT♠7+1+0
-0.0Round 4🇮🇱 ISRAEL264♥♣3=-3
-0.0Round 8🇫🇷 FRANCE182NT♠2=-1
-0.0Round 8🇫🇷 FRANCE323NT♠10-1+10
-0.0Round 15🇬🇵 GUADELOUPE73NT♥5+1+1
-0.0Round 16🇭🇰 CHINA HONG KONG324♠♥K=+1
+0.0Round 21🇦🇺 AUSTRALIA44♥♠A+1+0
-0.1Round 6🇯🇵 JAPAN194♥♥J+1+11
-0.2Round 3🇺🇸 USA1122♥♠K=+0
-0.2Round 7🇧🇷 BRAZIL13NT♣Q+1+1
-0.2Round 7🇧🇷 BRAZIL73♠♥Q-1-6
-0.3Round 2🇳🇿 NEW ZEALAND282♠♦8=-1
-0.3Round 4🇮🇱 ISRAEL181NT♠6-1+0
-0.3Round 7🇧🇷 BRAZIL53♣♦4+1-7
-0.4Round 3🇺🇸 USA174♥♣5+1+0
-0.4Round 17🇮🇳 INDIA143NT♣9-2+0
-0.5Round 2🇳🇿 NEW ZEALAND255♠♣4=+0
-0.5Round 11🇮🇹 ITALY53NT♠2+1-1
-0.5Round 11🇮🇹 ITALY103NT♠10+1-12
-0.5Round 11🇮🇹 ITALY153♠♥K-1-1
-0.6Round 20🇨🇦 CANADA222♠♥3+1-7
-0.6Round 21🇦🇺 AUSTRALIA114♠♣A=+0
-0.7Round 3🇺🇸 USA1113NT♥Q-3-2
-0.7Round 8🇫🇷 FRANCE253NT♥3=-1
-0.7Round 12🇦🇷 ARGENTINA173♦♥6+1+0
-0.7Round 21🇦🇺 AUSTRALIA61NT♦7+1-1
-0.8Round 6🇯🇵 JAPAN313NT♦9+1+1
-0.9Round 16🇭🇰 CHINA HONG KONG283♣♦K=+10
-1.0Round 3🇺🇸 USA1136♠♥8=+0
-1.0Round 4🇮🇱 ISRAEL253NT♠10=-1
-1.0Round 7🇧🇷 BRAZIL31NT♠K=-1
-1.0Round 7🇧🇷 BRAZIL115♥♣5+1+11
-1.1Round 3🇺🇸 USA132NT♥9+1-1
-1.1Round 13🇨🇳 CHINA13NT♠8+1+1
-1.2Round 8🇫🇷 FRANCE174♠♥2+2-11
-1.2Round 17🇮🇳 INDIA22♠♦K-1-3
-1.2Round 20🇨🇦 CANADA232NT♥6+1+10
-1.2Round 21🇦🇺 AUSTRALIA14♥♠3-1+2
-1.2Round 21🇦🇺 AUSTRALIA134♠♦6=+0
-1.3Round 8🇫🇷 FRANCE192♠♣3-1+0
-1.3Round 16🇭🇰 CHINA HONG KONG202♠♦K-2+2
-1.3Round 16🇭🇰 CHINA HONG KONG313NT♣2+1+0
-1.4Round 16🇭🇰 CHINA HONG KONG222♥♦9-1+1
-1.5Round 20🇨🇦 CANADA321♠♠7+2+0
-1.7Round 13🇨🇳 CHINA155♥♠A=-4
-1.8Round 6🇯🇵 JAPAN223NT♦3=+0
-1.9Round 2🇳🇿 NEW ZEALAND232♠♠7+1+0
-1.9Round 8🇫🇷 FRANCE304♥♣5=+11
-2.0Round 6🇯🇵 JAPAN173NT♥4-4-3
-2.0Round 16🇭🇰 CHINA HONG KONG303NT♣4=+0
-2.1Round 6🇯🇵 JAPAN243♣♦K+1-7
-2.1Round 21🇦🇺 AUSTRALIA22♠♠6+1+0
-2.2Round 4🇮🇱 ISRAEL312♠♣2+1-11
-2.2Round 12🇦🇷 ARGENTINA203NT♦2+1+1
-2.2Round 12🇦🇷 ARGENTINA211NT♠3=-5
-2.4Round 6🇯🇵 JAPAN184♠♣K+2+13
-2.4Round 13🇨🇳 CHINA115♠♥4-3+4
-2.5Round 15🇬🇵 GUADELOUPE96♣♥A=+2
-2.6Round 2🇳🇿 NEW ZEALAND221NT♦J=+0
-2.6Round 13🇨🇳 CHINA144♠♥3-1-2
-2.8Round 15🇬🇵 GUADELOUPE53NT♦Q+1+0
-2.8Round 21🇦🇺 AUSTRALIA94♥♦4=+0
-2.9Round 8🇫🇷 FRANCE202♠♣A+1-1
-2.9Round 12🇦🇷 ARGENTINA283♥♠A=+0
-2.9Round 13🇨🇳 CHINA42♠♦K+1+0
-2.9Round 17🇮🇳 INDIA34♣♥10+2-2
-3.1Round 8🇫🇷 FRANCE311NT♦2=-6
-3.1Round 15🇬🇵 GUADELOUPE24♠♠3+3-14
-3.1Round 17🇮🇳 INDIA123NT♠J-1-12
-3.2Round 3🇺🇸 USA1103♣♦2+2+8
-3.2Round 15🇬🇵 GUADELOUPE143♠♦A=-7
-3.2Round 17🇮🇳 INDIA91NT♠Q-1-4
-3.4Round 20🇨🇦 CANADA242♣♦J+2-1
-3.5Round 2🇳🇿 NEW ZEALAND322NT♠Q=-10
-3.6Round 17🇮🇳 INDIA14♠♣A-2-5
-3.6Round 17🇮🇳 INDIA113♦♠5-1-10
-3.7Round 11🇮🇹 ITALY11♥♦6+3-2
-3.7Round 16🇭🇰 CHINA HONG KONG233NT♥6+1-1
-3.8Round 4🇮🇱 ISRAEL223♠♥Q+1-10
-3.9Round 2🇳🇿 NEW ZEALAND273NT♥K-2-11
-3.9Round 7🇧🇷 BRAZIL22♥♦9=+1
-3.9Round 13🇨🇳 CHINA62♥♥3=+0
-3.9Round 17🇮🇳 INDIA81NT♠7-1-4
-4.0Round 2🇳🇿 NEW ZEALAND213♥♣9+1-2
-4.0Round 17🇮🇳 INDIA53NT♥6=+0
-4.0Round 17🇮🇳 INDIA153NT♣2-1-12
-4.1Round 16🇭🇰 CHINA HONG KONG254♠♠6=-7
-4.3Round 20🇨🇦 CANADA174♠♦A=+0
-4.4Round 6🇯🇵 JAPAN322♦♥8=-5
-4.4Round 11🇮🇹 ITALY22♠♥A+2-2
-4.5Round 8🇫🇷 FRANCE284♠♥K-3-7
-4.6Round 7🇧🇷 BRAZIL103NT♣Q=+1
-4.6Round 12🇦🇷 ARGENTINA253♠♣A-1-5
-5.0Round 13🇨🇳 CHINA123♠♦J-3-2
-5.0Round 16🇭🇰 CHINA HONG KONG195♦♣A-3-9
-5.0Round 21🇦🇺 AUSTRALIA144♠x♣Q-2+0
-5.2Round 8🇫🇷 FRANCE273NT♥Q-1-10
-5.4Round 16🇭🇰 CHINA HONG KONG172♠♣K=-6
-5.5Round 11🇮🇹 ITALY142♠♦J=-6
-5.6Round 7🇧🇷 BRAZIL154♥x♦A-2-5
-5.6Round 8🇫🇷 FRANCE213NT♣K-2-11
-5.6Round 13🇨🇳 CHINA34♠♣6=-7
-6.1Round 4🇮🇱 ISRAEL306NT♠3+1+9
-6.3Round 20🇨🇦 CANADA306♥♦5=+0
-6.6Round 4🇮🇱 ISRAEL174♥♠6=+0
-6.7Round 3🇺🇸 USA1143NT♦5-1-11
-6.7Round 8🇫🇷 FRANCE293♥♠5-2-7
-6.8Round 8🇫🇷 FRANCE246♦♥Q=+0
-6.8Round 11🇮🇹 ITALY83NT♥6=-3
-7.1Round 21🇦🇺 AUSTRALIA121♠♦J+2-11
-7.3Round 17🇮🇳 INDIA164♥♠A=-3
-7.5Round 17🇮🇳 INDIA43NT♠K-3-9
-7.8Round 20🇨🇦 CANADA294♠♠4+1-4
-7.9Round 2🇳🇿 NEW ZEALAND244♥♦5+2-8
-8.4Round 12🇦🇷 ARGENTINA223NT♦2=+1
-8.4Round 13🇨🇳 CHINA86♠♦J+1-11
-8.5Round 12🇦🇷 ARGENTINA194♥x♦2+1-6
-9.7Round 13🇨🇳 CHINA92NTx♣2-2-8
-9.9Round 13🇨🇳 CHINA103NT♣5=-3
-10.3Round 3🇺🇸 USA163NT♠4+1+0
-10.5Round 12🇦🇷 ARGENTINA236♠♣4=+0
-11.1Round 11🇮🇹 ITALY46♠♦9-1-13
-11.3Round 20🇨🇦 CANADA183♦x♠A-3-12
-11.6Round 11🇮🇹 ITALY94♠x♥Q-2-14
-11.6Round 16🇭🇰 CHINA HONG KONG217♠♠2=+0
-12.0Round 11🇮🇹 ITALY65♦x♣4-3-12