KORBEL Daniel · ZHANG

338rank
-90.1Butler · 168 bds
-0.54per board
±4.0swing
-0.15vs par /bd · #233/382
-0.48adjusted /bd
Butler per round: 10.6 -8.8 -5.6 -1.6 -18.6 -15.5 -32.7 -12.7 -11.1 0.6 3.8 1.5by round

vs par split: bidding -0.37 · play +0.24

Strength of schedule: opponents averaged +0.06/bd (a tough draw) → opponent-adjusted -0.48/bd

Card play — on target: opening leads 77.1% #248 of 382 · declarer play 79.2% #84 of 382 · defence 86.4% #232 of 382

Bidding activity — not a pass: 40.8% #266 of 382 (190/466)

Card play by contract type — on target
vs NTvs a suit
Opening leads55.6% (9)84.6% (26)
Declarer play66.7% (12)82.9% (41)
Defence84.0% (25)87.5% (56)

Opening leads by suit led: ♠ 77.8% (9) · ♥ 70.0% (10) · ♦ 83.3% (6) · ♣ 80.0% (10)

vs par by strain: NT +0.57 (44) · a suit -0.39 (121)

vs par by level: part-score -1.28 (68) · game +0.72 (86) · slam +0.27 (11)

By role: declaring -0.45/bd (-2.74 vs par · 84) · defending -0.67/bd (+2.57 vs par · 81)

By vulnerability: vulnerable -0.41/bd (-0.41 vs par · 84) · not vulnerable -0.67/bd (+0.10 vs par · 84)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1S.ZhangJ.Sigsgaard – E.RosthoejClosed14+10.6+0.76+3.21
Round 2S.ZhangS.Iancu – A.FilimonClosed14-8.8-0.63-0.71
Round 3S.ZhangY.Aviram – G.AltshulerOpen14-5.6-0.40+1.36
Round 4S.ZhangP.Karlik – F.KubatOpen14-1.6-0.11+1.29
Round 5S.ZhangD.Msika – I.MoskovitzOpen14-18.6-1.33-0.07
Round 6S.ZhangP.Patreuha – J.PatreuhaOpen14-15.5-1.11-1.14
Round 7S.ZhangM.Humpal – O.KrasaOpen14-32.7-2.34-4.79
Round 8S.ZhangJ.Slemr – A.PyszkoClosed14-12.7-0.91-3.64
Round 9S.ZhangJ.Aroix – J.TignelOpen14-11.1-0.79+0.93
Round 10S.ZhangA.Twardowski – D.BoguckiClosed14+0.6+0.04+1.29
Round 11S.ZhangG.Darkiewicz-Moniuszko – L.TrendakClosed14+3.8+0.27+0.36
Round 12S.ZhangI.Kandemir – E.KayaOpen14+1.5+0.11+0.07

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
+12.8Round 6MAVERICKS226♠♦6=-13
+10.9Round 11KROWKA15♣x♠K=+10
+9.8Round 10TRADYCJA225♥♦K-1+14
+9.3Round 1ESKOM105♦x♠A=+4
+8.5Round 12BARIS204♠♥7-2+8
+7.9Round 3ALTSHULER26NT♥6-2+17
+7.3Round 12BARIS284♥♣A-1+9
+6.6Round 1ESKOM95♠x♣A=+5
+6.2Round 4CZECHIA U23253♣♦T=+6
+6.1Round 2TEAM META196♠♦J+1+1
+5.2Round 3ALTSHULER114♥♦7=+3
+4.9Round 11KROWKA53NT♥Q=+0
+4.7Round 8LUCY IN THE SKY234♠x♥6-3-12
+4.5Round 9FRANCE GREEN24♥♦A-2+12
+4.5Round 11KROWKA123♦x♥A-1+9
+4.4Round 2TEAM META164♠♦8-1+10
+4.3Round 7BEAUTY WITH PRETZELS32♥♦6-1-2
+3.6Round 8LUCY IN THE SKY252NT♦7-1+5
+3.6Round 11KROWKA94♥♦K+2-1
+3.4Round 9FRANCE GREEN121♠♣K+1+11
+3.4Round 10TRADYCJA285♣♥K=+0
+3.3Round 10TRADYCJA184♠♣2=+0
+3.2Round 1ESKOM114♠♦K-1+8
+3.2Round 2TEAM META281NT♥Q=-2
+3.1Round 9FRANCE GREEN113NT♥3+1+7
+2.7Round 3ALTSHULER53NT♦T+4+17
+2.7Round 6MAVERICKS202♠♥7+1+1
+2.5Round 1ESKOM14♥♣K-2+5
+2.5Round 1ESKOM53NT♠2-1+6
+2.5Round 4CZECHIA U23204♠♥5-2+8
+2.4Round 1ESKOM74NT♠9+1+13
+2.4Round 5ISRAEL BLUE62♦♥Q=+5
+2.3Round 11KROWKA113♥♥2+1-6
+2.1Round 8LUCY IN THE SKY171NT♥3+2+1
+2.1Round 8LUCY IN THE SKY185♥♠T-2+2
+2.0Round 7BEAUTY WITH PRETZELS24♠♥A+2+1
+2.0Round 10TRADYCJA194♠♥3-1-2
+1.8Round 3ALTSHULER134♠♥A=+9
+1.8Round 6MAVERICKS215♦♠A-2+5
+1.8Round 12BARIS153♣♣3-1+0
+1.6Round 8LUCY IN THE SKY213NT♥5=-1
+1.6Round 12BARIS222♥♠3-1-2
+1.5Round 4CZECHIA U23153NT♣8=-1
+1.5Round 6MAVERICKS164♠x♥3-1+0
+1.4Round 12BARIS263♠♥5-1+0
+1.3Round 4CZECHIA U23182♠♦A+1+0
+1.3Round 10TRADYCJA163NT♥3-2+11
+1.2Round 3ALTSHULER9Pass-3
+1.2Round 4CZECHIA U23224♠♣4+3+10
+1.1Round 5ISRAEL BLUE22♣♣T+1+0
+1.1Round 10TRADYCJA204♠♥6=+0
+1.1Round 11KROWKA105♥♠A=-12
+0.9Round 4CZECHIA U23234♠♣J=+0
+0.9Round 5ISRAEL BLUE13♠♥T=+0
+0.9Round 7BEAUTY WITH PRETZELS84♥♠Q+1-11
+0.8Round 10TRADYCJA171NT♠A=+0
+0.8Round 10TRADYCJA243♦♠K+3-4
+0.8Round 12BARIS213NT♦6=+0
+0.7Round 7BEAUTY WITH PRETZELS6Pass+3
+0.7Round 8LUCY IN THE SKY264♠♦K=-1
+0.7Round 10TRADYCJA233♠♥K-1-1
+0.6Round 8LUCY IN THE SKY241NT♥9=-1
+0.5Round 3ALTSHULER16NT♣J=+0
+0.5Round 3ALTSHULER32NT♣3=+1
+0.5Round 5ISRAEL BLUE41NT♠K-1-5
+0.5Round 7BEAUTY WITH PRETZELS71NT♠2-1+0
+0.5Round 7BEAUTY WITH PRETZELS92♠♦Q-1-5
+0.5Round 8LUCY IN THE SKY284♠♥J+2-14
+0.4Round 6MAVERICKS273♦♠5=+0
+0.4Round 9FRANCE GREEN144♠♥J+1+0
+0.4Round 11KROWKA33♦♥2=+7
+0.4Round 12BARIS184♠♣A-2+7
+0.3Round 3ALTSHULER44♠♥9=+1
+0.2Round 2TEAM META226♠♥2+1+11
+0.2Round 4CZECHIA U23244♥♠K=-1
+0.2Round 5ISRAEL BLUE93NT♠2+1+1
+0.2Round 6MAVERICKS154♥♦5=-1
+0.1Round 1ESKOM134♠♥4+1+13
+0.1Round 2TEAM META182♦♣9-1+2
-0.0Round 5ISRAEL BLUE124♠♥A-1-5
-0.1Round 4CZECHIA U23193NT♣Q+1-1
-0.1Round 10TRADYCJA254♠♥5+2+11
-0.1Round 12BARIS234♥♦K=-1
-0.2Round 2TEAM META213♠♦K-1+2
-0.2Round 9FRANCE GREEN81NT♣3=-2
-0.3Round 2TEAM META203NT♣4=-2
-0.3Round 4CZECHIA U2317Pass-4
-0.4Round 1ESKOM144♠♥A+1+0
-0.4Round 9FRANCE GREEN61NT♦8+2-1
-0.6Round 9FRANCE GREEN101NT♠2+1-10
-0.8Round 1ESKOM24♥♣K=-3
-0.8Round 4CZECHIA U23262♠♦7=+11
-0.9Round 2TEAM META171NT♥3+3+6
-0.9Round 11KROWKA132♣♥2=-5
-1.0Round 3ALTSHULER83♥♣K-1-5
-1.0Round 12BARIS251NT♣5+2-1
-1.1Round 2TEAM META233♠♣3-1-12
-1.1Round 5ISRAEL BLUE71NT♥Q-2-2
-1.1Round 9FRANCE GREEN13NT♦2+3-1
-1.2Round 5ISRAEL BLUE135♣♦3+1+13
-1.3Round 1ESKOM44♠♣2+1+0
-1.3Round 5ISRAEL BLUE112♦♠9+4+6
-1.3Round 7BEAUTY WITH PRETZELS51NT♥5-2+0
-1.5Round 6MAVERICKS174NT♣J+1+14
-1.6Round 4CZECHIA U23274♥♥4=+0
-1.6Round 9FRANCE GREEN33♦♣A-1-5
-1.6Round 12BARIS244♥♥3=-3
-1.7Round 8LUCY IN THE SKY193NT♦6+1+0
-1.8Round 5ISRAEL BLUE104♥♦3-1-6
-1.8Round 12BARIS163NT♥A+2+0
-1.9Round 1ESKOM34♠♣J-2-3
-1.9Round 6MAVERICKS283♠♥3-2+0
-1.9Round 11KROWKA72♦♦6-5-4
-2.2Round 3ALTSHULER143♠♥7-3+0
-2.3Round 7BEAUTY WITH PRETZELS132♣♦9-1+0
-2.4Round 7BEAUTY WITH PRETZELS122♦♥A+1-8
-2.5Round 1ESKOM84♠♥K=-3
-2.6Round 2TEAM META264♠♥9-1-6
-2.6Round 3ALTSHULER73NT♦J+3-17
-2.6Round 11KROWKA84♥♣A=+0
-2.7Round 4CZECHIA U23282♥♠8-1+6
-2.7Round 9FRANCE GREEN71NT♥3=+1
-2.8Round 11KROWKA23♠♥J-1+2
-2.9Round 3ALTSHULER63NT♠9+1+0
-3.0Round 1ESKOM122♠♦6+1+10
-3.1Round 6MAVERICKS242♠♣6+2-7
-3.1Round 9FRANCE GREEN97♥♦6=+0
-3.2Round 8LUCY IN THE SKY272♥♣K=-5
-3.3Round 4CZECHIA U23163♥♠K-1-6
-3.3Round 10TRADYCJA263NT♥5+1-1
-3.4Round 5ISRAEL BLUE33♠♥9+1-1
-3.4Round 9FRANCE GREEN53♠♦6+2-6
-3.5Round 2TEAM META242♦x♠6-2+3
-3.5Round 12BARIS193♣♦3-1-5
-3.5Round 12BARIS273♥♠A=-2
-3.6Round 2TEAM META154♠♦5-1-5
-3.7Round 11KROWKA43NT♠T=+0
-3.9Round 10TRADYCJA213NT♣6=+1
-4.0Round 6MAVERICKS264♥♠4+2-1
-4.0Round 10TRADYCJA154♠♣Q=+0
-4.1Round 6MAVERICKS235♦♦6+1+10
-4.3Round 2TEAM META273♥♠3=-11
-4.3Round 9FRANCE GREEN136♣♠6=+13
-4.4Round 11KROWKA142♠♠6+2+6
-4.6Round 8LUCY IN THE SKY203NT♠5=+0
-4.7Round 5ISRAEL BLUE54♠♥2+1+4
-4.7Round 7BEAUTY WITH PRETZELS112♠♦6+2-7
-4.7Round 8LUCY IN THE SKY224♥♠4-2-13
-4.8Round 5ISRAEL BLUE142NT♥Q-3-11
-4.8Round 7BEAUTY WITH PRETZELS46♣♦Q+1-13
-5.1Round 9FRANCE GREEN44♥♠3-1-6
-5.4Round 5ISRAEL BLUE83NT♣7=+0
-5.5Round 7BEAUTY WITH PRETZELS144♥x♥3=-5
-5.6Round 6MAVERICKS183♠♦A-1-10
-5.8Round 3ALTSHULER126♠♦J=+12
-6.1Round 1ESKOM63♦♥A+1-10
-6.3Round 2TEAM META254♠♠J=-7
-6.4Round 6MAVERICKS192♣♣2=-5
-6.5Round 8LUCY IN THE SKY165♥♦K-1-5
-6.6Round 4CZECHIA U23214♥♣A-1-10
-7.2Round 7BEAUTY WITH PRETZELS104♥♣A-1-6
-7.6Round 11KROWKA62NT♠T=-1
-7.9Round 8LUCY IN THE SKY155♥x♦A-1-7
-8.3Round 6MAVERICKS253♥♦J-5-9
-8.8Round 12BARIS172♣x♠K-4-9
-11.2Round 3ALTSHULER103NT♥Q-1-16
-11.3Round 10TRADYCJA276♥♣4=-11
-13.4Round 7BEAUTY WITH PRETZELS17♣♠A-1-14