🇨🇿 KURKA Josef · CZECH REP.

40rank
+27.6Butler · 240 bds
+0.12per board
±4.4swing
-0.39vs par /bd · #86/113
-0.00adjusted /bd
Butler per round: -3.8 -3.6 3.8 -25.2 -18 20.8 13.7 29.5 24.4 -17.3 -4.5 7.8by round

vs par split: bidding -0.11 · play -0.28

Strength of schedule: opponents averaged -0.12/bd (an easy draw) → opponent-adjusted -0.00/bd

Card play — on target: opening leads 82.5% #38 of 113 · declarer play 71.9% #70 of 113 · defence 87.1% #51 of 113

Card play by contract type — on target
vs NTvs a suit
Opening leads69.2% (13)86.4% (44)
Declarer play71.4% (14)72.1% (43)
Defence92.3% (39)84.4% (77)

Opening leads by suit led: ♠ 76.5% (17) · ♥ 83.3% (18) · ♦ 84.6% (13) · ♣ 88.9% (9)

vs par by strain: NT +0.35 (71) · a suit -0.71 (167)

vs par by level: part-score -0.68 (87) · game +0.03 (134) · slam -2.29 (17)

By role: declaring +0.18/bd (-2.76 vs par · 122) · defending +0.04/bd (+2.06 vs par · 118)

By vulnerability: vulnerable +0.14/bd (-0.40 vs par · 120) · not vulnerable +0.09/bd (-0.38 vs par · 120)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1T.MrazB.Vlajnic – D.ZipovskiOpen20-3.8-0.19-0.70
Round 2T.MrazM.Karamanlis – V.VroustisClosed20-3.6-0.18+0.70
Round 4T.MrazE.Koksoy – A.KahramanClosed20+3.8+0.19+0.00
Round 6T.MrazT.Bakkeren – H.BertensClosed20-25.2-1.26-1.45
Round 8T.MrazA.Jorgensen – S.ArmannssonClosed20-18.0-0.90-3.05
Round 9T.MrazM.Cuthbertson – D.WalkerOpen20+20.8+1.04+3.45
Round 10T.MrazM.Askgaard – G.BjarnarsonClosed20+13.7+0.68-1.50
Round 11T.MrazB.Spiljak – D.DiklicClosed20+29.5+1.48+1.40
Round 13T.MrazM.Catellani – H.FissoreClosed20+24.4+1.22+0.25
Round 14T.MrazJ.Armstrong – J.HollandClosed20-17.3-0.86-1.40
Round 16T.MrazU.Jansons – I.RubenisOpen20-4.5-0.23-2.95
Round 17T.MrazI.Bareket – J.RollClosed20+7.8+0.39+0.55

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
+13.2Round 1🇷🇸 SERBIA43♠x♥7=+16
+13.1Round 13🇲🇨 MONACO186♣♦K=-2
+12.6Round 4🇹🇷 TURKEY106♣♥J=+0
+10.9Round 13🇲🇨 MONACO154♠x♣Q-3+11
+10.8Round 16🇱🇻 LATVIA56♦♣9=-2
+10.7Round 11🇭🇷 CROATIA93NT♠5=+0
+9.2Round 1🇷🇸 SERBIA176♣♥3=+10
+8.6Round 6🇳🇱 NETHERLANDS43NT♣A-1+12
+8.4Round 10🇩🇰 DENMARK43NT♥7=+0
+8.2Round 17🇮🇱 ISRAEL143♦♥J-2+11
+7.6Round 11🇭🇷 CROATIA183NT♠7-4+11
+7.5Round 9🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND73♠♦Q+1+10
+7.5Round 17🇮🇱 ISRAEL54♥♠K=+8
+7.1Round 4🇹🇷 TURKEY54♠♣K-2+11
+7.1Round 9🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND204♥♣8-1+12
+6.8Round 9🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND162♠♣K-1+7
+6.6Round 10🇩🇰 DENMARK165♦x♦3-3+0
+6.5Round 9🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND35♣x♦7-2+10
+6.5Round 11🇭🇷 CROATIA162♥♦A+1+1
+6.4Round 14🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND184♠♥7-2+7
+5.9Round 9🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND113♣♦Q+1+0
+5.9Round 11🇭🇷 CROATIA194♠x♥2-2+5
+5.9Round 14🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND105♠x♣7-1+9
+5.6Round 16🇱🇻 LATVIA172♠♥2=+0
+5.5Round 9🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND104♠♥8-1+12
+5.4Round 16🇱🇻 LATVIA74♠♦K=+0
+5.3Round 11🇭🇷 CROATIA152♦♥A=+11
+5.0Round 2🇬🇷 GREECE13NT♥4=+11
+4.8Round 10🇩🇰 DENMARK203♠♥5-1+5
+4.7Round 8🇮🇸 ICELAND114♥♦J=+0
+4.7Round 10🇩🇰 DENMARK115♣♦3-1+5
+4.6Round 6🇳🇱 NETHERLANDS17♥♥J=+0
+4.6Round 13🇲🇨 MONACO13NT♣10-1+10
+4.5Round 1🇷🇸 SERBIA145♥♦A-1+4
+4.2Round 11🇭🇷 CROATIA27♦♥9=-2
+4.1Round 2🇬🇷 GREECE164♠♣K-1+10
+4.1Round 13🇲🇨 MONACO133NT♣4+1+0
+3.9Round 4🇹🇷 TURKEY46♣x♦Q-1+9
+3.8Round 2🇬🇷 GREECE136♠♥Q=+1
+3.8Round 10🇩🇰 DENMARK21NT♠9=-8
+3.8Round 10🇩🇰 DENMARK143♥♣2=+6
+3.4Round 1🇷🇸 SERBIA205♣x♠A-1+8
+3.2Round 17🇮🇱 ISRAEL103NT♠2=-2
+3.2Round 17🇮🇱 ISRAEL172NT♠3+1+6
+3.1Round 8🇮🇸 ICELAND173NT♠Q-4+2
+2.9Round 8🇮🇸 ICELAND83NT♦10-2+6
+2.9Round 11🇭🇷 CROATIA134NT♥5+2+13
+2.9Round 17🇮🇱 ISRAEL34♠♥K=+0
+2.8Round 4🇹🇷 TURKEY134♠♦4-1+6
+2.8Round 8🇮🇸 ICELAND133NT♥5+3-13
+2.8Round 10🇩🇰 DENMARK94♥♣K+2+1
+2.8Round 10🇩🇰 DENMARK123NT♠6=-1
+2.8Round 13🇲🇨 MONACO54♥♠Q=+3
+2.7Round 6🇳🇱 NETHERLANDS143NT♠J+2+0
+2.6Round 2🇬🇷 GREECE114♥♣8+2-11
+2.5Round 2🇬🇷 GREECE204♠♥K+2+12
+2.5Round 8🇮🇸 ICELAND52♥♦5-1+2
+2.5Round 8🇮🇸 ICELAND193♦♥A+1+0
+2.5Round 9🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND153NT♥2+2+1
+2.5Round 10🇩🇰 DENMARK102♥♣J+1+1
+2.5Round 17🇮🇱 ISRAEL64♥x♦K-2+5
+2.4Round 2🇬🇷 GREECE73NT♥Q+2+1
+2.4Round 4🇹🇷 TURKEY201NT♦4-1+0
+2.4Round 6🇳🇱 NETHERLANDS54♠♣J-1+5
+2.3Round 1🇷🇸 SERBIA23♥♠J=+0
+2.3Round 16🇱🇻 LATVIA203NT♦9+2+2
+2.1Round 8🇮🇸 ICELAND32♠♦10=+0
+2.1Round 13🇲🇨 MONACO114♥♣A+2+11
+2.0Round 1🇷🇸 SERBIA53♦♣10+1+0
+2.0Round 11🇭🇷 CROATIA53NT♦K-1+13
+1.9Round 10🇩🇰 DENMARK175♣♥A+1+1
+1.8Round 17🇮🇱 ISRAEL154♥♣K=+3
+1.6Round 11🇭🇷 CROATIA173♥♠K-1-2
+1.6Round 13🇲🇨 MONACO43NT♠6-1-5
+1.5Round 1🇷🇸 SERBIA34♥♥K-1+5
+1.5Round 6🇳🇱 NETHERLANDS112NT♦3-2+5
+1.5Round 8🇮🇸 ICELAND141NT♠5+1+0
+1.4Round 1🇷🇸 SERBIA163♠♥6-2-9
+1.4Round 6🇳🇱 NETHERLANDS33NT♠2=+0
+1.4Round 8🇮🇸 ICELAND15♦♠3=-2
+1.4Round 11🇭🇷 CROATIA7Pass+3
+1.4Round 13🇲🇨 MONACO34♥♦K+1+0
+1.4Round 14🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND82NT♠3=+0
+1.4Round 17🇮🇱 ISRAEL183NT♣6-1+5
+1.3Round 10🇩🇰 DENMARK54♠♣K=-1
+1.3Round 14🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND122♠♣7=+0
+1.3Round 16🇱🇻 LATVIA42♥♣8=-1
+1.3Round 16🇱🇻 LATVIA184♠♥10+1+0
+1.2Round 4🇹🇷 TURKEY182♦♦5+1+1
+1.2Round 11🇭🇷 CROATIA81NT♥7=+5
+1.1Round 9🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND52♥♠K+2+1
+1.1Round 11🇭🇷 CROATIA144♣♣8=+0
+1.1Round 17🇮🇱 ISRAEL21♠♦8-1+1
+0.9Round 1🇷🇸 SERBIA103NT♠J=+2
+0.9Round 2🇬🇷 GREECE143NT♦A+3+1
+0.9Round 6🇳🇱 NETHERLANDS92♠♠7+1+1
+0.9Round 8🇮🇸 ICELAND151NT♠4+1+1
+0.9Round 13🇲🇨 MONACO25♠♥9=+0
+0.9Round 13🇲🇨 MONACO72♠♠4+1+0
+0.9Round 16🇱🇻 LATVIA82♠♦8-1+4
+0.8Round 11🇭🇷 CROATIA123NT♥4+1+1
+0.8Round 13🇲🇨 MONACO143NT♥6+3-14
+0.7Round 17🇮🇱 ISRAEL203♦♥2+2+0
+0.6Round 1🇷🇸 SERBIA193NT♣2=+0
+0.6Round 14🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND61NT♦7-1+4
+0.6Round 14🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND143♥♠A-1-2
+0.5Round 4🇹🇷 TURKEY23NT♥6=-10
+0.5Round 6🇳🇱 NETHERLANDS82♠♥K+2+6
+0.4Round 6🇳🇱 NETHERLANDS183NT♠K+1+0
+0.4Round 10🇩🇰 DENMARK13NT♣9+1+0
+0.4Round 11🇭🇷 CROATIA63NT♥5+1+1
+0.4Round 11🇭🇷 CROATIA201♠♦K+2+10
+0.4Round 14🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND154♥♠4-1-10
+0.3Round 9🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND144♥♦K-1+10
+0.3Round 11🇭🇷 CROATIA114♠♦A-2-5
+0.2Round 2🇬🇷 GREECE93NT♥8=+1
+0.2Round 4🇹🇷 TURKEY14♠♣3+1+0
+0.2Round 9🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND133NT♥4=+0
+0.1Round 2🇬🇷 GREECE153NT♦2=-3
+0.1Round 2🇬🇷 GREECE184♠♥5-2+5
+0.1Round 8🇮🇸 ICELAND92♠♣Q=+0
+0.1Round 8🇮🇸 ICELAND164♥♦Q+1+0
+0.1Round 13🇲🇨 MONACO83NT♦2+1+0
+0.1Round 17🇮🇱 ISRAEL83NT♦A+1-1
-0.0Round 1🇷🇸 SERBIA132♣♠5+1+0
+0.0Round 6🇳🇱 NETHERLANDS24♥♣9=+0
-0.0Round 9🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND84♥♠8+2+11
-0.0Round 10🇩🇰 DENMARK64♠♦K+1+0
-0.1Round 9🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND41NT♣A=-1
-0.1Round 10🇩🇰 DENMARK32♠♠9+2-10
-0.1Round 13🇲🇨 MONACO163NT♥9=+1
-0.1Round 14🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND54♠♥A=+0
-0.2Round 2🇬🇷 GREECE8Pass-3
-0.2Round 2🇬🇷 GREECE192♠♥J=+1
-0.3Round 14🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND93NT♠6+1+0
-0.3Round 17🇮🇱 ISRAEL12♦♠7+2-8
-0.5Round 2🇬🇷 GREECE53NT♥5+2-1
-0.5Round 4🇹🇷 TURKEY164♥♠3-1-2
-0.5Round 6🇳🇱 NETHERLANDS172♠♥2+1+0
-0.5Round 8🇮🇸 ICELAND42♥♣7+1-1
-0.5Round 10🇩🇰 DENMARK74♥♠2-1+6
-0.5Round 13🇲🇨 MONACO62♥♣5+1+0
-0.5Round 16🇱🇻 LATVIA103NT♦J-1-5
-0.5Round 17🇮🇱 ISRAEL94♦♠5=+9
-0.6Round 4🇹🇷 TURKEY63NT♦5+1+0
-0.6Round 14🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND42♠♣3+1+0
-0.6Round 16🇱🇻 LATVIA142♥♣4+2-13
-0.7Round 9🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND13NT♣6+1+11
-0.7Round 16🇱🇻 LATVIA113♦♠7-1+4
-0.8Round 2🇬🇷 GREECE174♥♠K+1+0
-0.8Round 4🇹🇷 TURKEY113NT♦6+2+11
-0.8Round 9🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND62NT♥8=+7
-0.8Round 9🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND173NT♥10+2+10
-0.8Round 16🇱🇻 LATVIA64♠♦6+1-11
-0.9Round 4🇹🇷 TURKEY33NT♣6+1+0
-0.9Round 14🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND164♠♥J=+0
-0.9Round 16🇱🇻 LATVIA33♠♥8=-7
-0.9Round 17🇮🇱 ISRAEL43♦♣10-1-11
-1.0Round 16🇱🇻 LATVIA124♥♠5+1-1
-1.0Round 16🇱🇻 LATVIA132♠♦10=+1
-1.1Round 1🇷🇸 SERBIA84♥♣Q+3-14
-1.2Round 4🇹🇷 TURKEY83NT♣5+1+0
-1.2Round 4🇹🇷 TURKEY141NT♥2-1+2
-1.2Round 8🇮🇸 ICELAND104♣♠4-2-2
-1.2Round 13🇲🇨 MONACO93NT♥J+2+0
-1.2Round 13🇲🇨 MONACO172♠♦Q+1+0
-1.2Round 14🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND23NT♠2=+0
-1.4Round 8🇮🇸 ICELAND126♥♦6+1-1
-1.4Round 14🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND131NT♥2-1-5
-1.5Round 4🇹🇷 TURKEY92♠♥K+2-1
-1.6Round 9🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND181♠♥A=-1
-1.6Round 11🇭🇷 CROATIA42♠♣7-2-9
-1.6Round 16🇱🇻 LATVIA94♥♦A-1-10
-1.8Round 14🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND34♥♣6-2-7
-1.8Round 16🇱🇻 LATVIA13NT♠7+2+0
-1.9Round 14🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND175♣♠9=+11
-2.0Round 10🇩🇰 DENMARK195♦♠Q=+0
-2.1Round 6🇳🇱 NETHERLANDS63NT♠7=+0
-2.1Round 14🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND203♠♠Q-2-3
-2.1Round 17🇮🇱 ISRAEL132♠♦8-3-5
-2.2Round 2🇬🇷 GREECE122♠♣6-2+0
-2.4Round 8🇮🇸 ICELAND23♦♠Q+1-8
-2.5Round 6🇳🇱 NETHERLANDS131♠x♥7-1-2
-2.5Round 13🇲🇨 MONACO193♠♦Q=-1
-2.5Round 16🇱🇻 LATVIA194♠♥2=+1
-2.5Round 17🇮🇱 ISRAEL163♠♥2=-1
-2.5Round 17🇮🇱 ISRAEL194♥♣10-1-10
-2.6Round 2🇬🇷 GREECE64♠♥7+1-1
-2.6Round 6🇳🇱 NETHERLANDS193♠♣2-2-6
-2.6Round 17🇮🇱 ISRAEL113NT♦3+3-3
-2.8Round 4🇹🇷 TURKEY172♥♣A=-5
-2.8Round 4🇹🇷 TURKEY194♥♣J=+0
-2.8Round 6🇳🇱 NETHERLANDS165♥♠A=-4
-2.8Round 13🇲🇨 MONACO203♦♥A-1+0
-3.1Round 4🇹🇷 TURKEY154♥♦3+2-11
-3.1Round 8🇮🇸 ICELAND66♠♥8=+0
-3.1Round 11🇭🇷 CROATIA13NTx♦4-1-6
-3.2Round 1🇷🇸 SERBIA153♦♥K-2-5
-3.2Round 2🇬🇷 GREECE44♠♦6=+0
-3.2Round 16🇱🇻 LATVIA163♦♠K=+0
-3.5Round 2🇬🇷 GREECE33NT♣A=+1
-3.5Round 14🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND72♥♠2=-1
-3.7Round 9🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND125♥x♦A-1-12
-3.9Round 1🇷🇸 SERBIA93NT♥2+3-1
-3.9Round 13🇲🇨 MONACO125♦♣J+1+1
-4.0Round 1🇷🇸 SERBIA72♥♦6-3+8
-4.0Round 10🇩🇰 DENMARK153♣♦4+2-6
-4.1Round 1🇷🇸 SERBIA13♥♦5-2-11
-4.2Round 9🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND194♠♦4-1-12
-4.2Round 17🇮🇱 ISRAEL72♥♦K+1-7
-4.3Round 9🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND24♠♦4=+0
-4.5Round 4🇹🇷 TURKEY74♥♥5+1+0
-4.5Round 14🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND114♠♥8=+0
-4.7Round 1🇷🇸 SERBIA125♥x♦K-1+0
-4.7Round 6🇳🇱 NETHERLANDS73NT♠6-3-9
-4.8Round 1🇷🇸 SERBIA116♥♠A=-10
-5.1Round 16🇱🇻 LATVIA23♥♦4-2-8
-5.2Round 2🇬🇷 GREECE25♦♦5=-11
-5.4Round 6🇳🇱 NETHERLANDS154♥♣2-2-8
-5.5Round 11🇭🇷 CROATIA33♦♠K+2-10
-6.4Round 9🏴󠁧󠁢󠁳󠁣󠁴󠁿 SCOTLAND93♠♦8-2-7
-6.6Round 10🇩🇰 DENMARK183NT♣5+3-11
-6.7Round 13🇲🇨 MONACO102♠♥J+2-10
-6.9Round 2🇬🇷 GREECE106♥♦2=+0
-7.0Round 4🇹🇷 TURKEY126♥♥6+1-11
-7.2Round 8🇮🇸 ICELAND75♠♥K+2-17
-7.4Round 10🇩🇰 DENMARK84♠♣10+1-1
-7.5Round 1🇷🇸 SERBIA64♥x♣3-3-14
-7.8Round 14🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND16♥♣4-2-14
-7.8Round 14🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND193NT♠3+3-17
-8.4Round 6🇳🇱 NETHERLANDS122♠x♦K-2-9
-9.1Round 6🇳🇱 NETHERLANDS205♦♠6=-10
-9.2Round 17🇮🇱 ISRAEL126♦♣J=+11
-9.5Round 1🇷🇸 SERBIA183NT♥6=-3
-9.5Round 10🇩🇰 DENMARK134♥♦10+3-17
-10.1Round 6🇳🇱 NETHERLANDS102♦x♥9-4-10
-11.0Round 8🇮🇸 ICELAND186♥♠8-2-11
-12.4Round 16🇱🇻 LATVIA153NT♣5-1-13
-12.6Round 11🇭🇷 CROATIA104♥x♣10-3-12
-15.8Round 8🇮🇸 ICELAND206♠♥5-1-17