KORBEL Daniel · ZHANG

178rank
-55.5Butler · 112 bds
-0.50per board
±3.8swing
+0.22vs par /bd · #73/210
-0.55adjusted /bd
Butler per round: -7 21.8 4.3 -41.2 -18.2 16.2 -1 -30.4by round

vs par split: bidding +0.27 · play -0.04

Strength of schedule: opponents averaged -0.05/bd (an average draw) → opponent-adjusted -0.55/bd

Card play — on target: opening leads 75.8% #157 of 210 · declarer play 90.6% #15 of 210 · defence 80.4% #159 of 210

Bidding activity — not a pass: 39.8% #166 of 210 (123/309)

Card play by contract type — on target
vs NTvs a suit
Opening leads75.0% (8)76.0% (25)
Declarer play85.7% (7)92.0% (25)
Defence78.6% (14)81.0% (42)

Opening leads by suit led: ♠ 100.0% (5) · ♥ 66.7% (6) · ♦ 58.3% (12) · ♣ 90.0% (10)

vs par by strain: NT -1.33 (27) · a suit +0.72 (85)

vs par by level: part-score +1.63 (46) · game -0.60 (65) · slam -11.00 (1)

By role: declaring -0.47/bd (-1.73 vs par · 56) · defending -0.52/bd (+2.18 vs par · 56)

By vulnerability: vulnerable -0.28/bd (+1.05 vs par · 56) · not vulnerable -0.71/bd (-0.61 vs par · 56)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1S.ZhangA.Babsch – U.SchreckenbergerClosed14-7.0-0.50+0.93
Round 2S.ZhangK.Ozkurt – I.Ozkok KocamanOpen14+21.8+1.56+1.43
Round 3S.ZhangN.Sver – V.ZoricClosed14+4.3+0.31-0.14
Round 4S.ZhangA.Versace – C.AlpertOpen14-41.2-2.94-3.36
Round 5S.ZhangC.Madsen – P.BertheauClosed14-18.2-1.30+0.50
Round 6S.ZhangR.Saporta-Tworzydlo – P.SaportaOpen14+16.2+1.16+1.00
Round 7S.ZhangU.Goldberg – L.GoldbergClosed14-1.0-0.07+1.64
Round 8S.ZhangA.Tartarin – Q.RobertOpen14-30.4-2.17-0.21

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
+15.1Round 2FRIENDS165♥x♠K=+16
+9.7Round 2FRIENDS215♥♦K-1+13
+9.0Round 3CROATIA105♣♦6=+10
+7.2Round 6FRENCH CONNECTION253NT♦A+1+11
+6.3Round 3CROATIA23♣♠9+1+11
+4.6Round 5LUNDBERG43NT♠Q-2+16
+4.6Round 6FRENCH CONNECTION273NT♠K+1+0
+4.5Round 6FRENCH CONNECTION262♠♦Q+2+10
+4.0Round 1LUTZ44♠♦4-2+8
+3.9Round 1LUTZ74♠♦A+2+13
+3.8Round 2FRIENDS283♦♠K=+12
+3.6Round 5LUNDBERG135♦♠2=-2
+3.2Round 6FRENCH CONNECTION165♥♣T=+0
+3.0Round 7GOLDBERG41♠♦T+3+10
+2.6Round 1LUTZ123♦♠2=-1
+2.4Round 7GOLDBERG113♥♦4=+0
+2.3Round 5LUNDBERG51♠♣A=+5
+2.3Round 5LUNDBERG93♣♥K-3+1
+2.3Round 6FRENCH CONNECTION224♥♣J-1+5
+2.3Round 6FRENCH CONNECTION282NT♠7=+0
+2.2Round 3CROATIA34♠♦T+2+11
+1.8Round 5LUNDBERG12♣♦J-1+5
+1.8Round 6FRENCH CONNECTION174♥♣A=+3
+1.7Round 8DAISY CHAIN203♦♠7-1+0
+1.7Round 8DAISY CHAIN274♦♣Q-3+7
+1.6Round 1LUTZ63♥♠2+1+1
+1.6Round 6FRENCH CONNECTION193♠♥2=+1
+1.5Round 7GOLDBERG13NT♥Q+2+0
+1.5Round 7GOLDBERG103♥♣J=+7
+1.4Round 2FRIENDS263♠♣T+1+10
+1.4Round 8DAISY CHAIN281NT♦A+1+1
+1.3Round 2FRIENDS155♦♥A-1-5
+1.2Round 2FRIENDS205♦♠A-2+2
+1.1Round 3CROATIA123NT♦4=+13
+0.9Round 4BERNAL172♠♦J=+1
+0.9Round 6FRENCH CONNECTION235♠♦T=+0
+0.7Round 2FRIENDS171NT♥J+2-4
+0.7Round 8DAISY CHAIN154♥♠3+1+1
+0.6Round 6FRENCH CONNECTION184♠x♠2-1+0
+0.6Round 7GOLDBERG62♥♥7-2+1
+0.5Round 4BERNAL233♦♥T-1+1
+0.3Round 3CROATIA114♥♠3+1+0
+0.3Round 3CROATIA134♠♦4+1+0
+0.3Round 4BERNAL154♥♣Q+1+0
+0.2Round 3CROATIA86♠♥Q+1-11
+0.2Round 4BERNAL213♠♥T-2+9
+0.2Round 7GOLDBERG34♠♥Q+1+0
+0.1Round 1LUTZ102♠♣9-2-10
+0.1Round 7GOLDBERG53♠♣6-1+4
+0.1Round 8DAISY CHAIN243NT♥5+1+1
-0.0Round 3CROATIA93♣♥4+2+6
+0.0Round 7GOLDBERG82♦♥6-1-2
-0.2Round 1LUTZ14♥♠K=+0
-0.3Round 1LUTZ145♣♥5=+2
-0.3Round 4BERNAL253NT♠8+2+0
-0.3Round 5LUNDBERG144♥♣T+1+0
-0.4Round 1LUTZ83NT♠6=-1
-0.4Round 7GOLDBERG133♠♠3=+0
-0.5Round 4BERNAL184♠♥8=+0
-0.5Round 7GOLDBERG92♥♣6+2+10
-0.7Round 3CROATIA14♥♦J=+0
-0.7Round 3CROATIA72♠♥6+1+0
-0.8Round 2FRIENDS233♠♥2-1-5
-0.8Round 7GOLDBERG24♠♦8+1+0
-0.8Round 7GOLDBERG73NT♥9+1+0
-0.9Round 2FRIENDS184♥♣A=+0
-1.0Round 1LUTZ91NT♠T-1-2
-1.0Round 2FRIENDS253NT♦5+2+0
-1.0Round 3CROATIA51♥♣A+2+0
-1.0Round 4BERNAL192♥♣Q=+1
-1.0Round 8DAISY CHAIN264♥♣A=+0
-1.1Round 5LUNDBERG125♥♠K=+0
-1.2Round 2FRIENDS194♠♦A=+0
-1.4Round 2FRIENDS223♠♦Q+1-10
-1.6Round 3CROATIA63NT♦7+2-16
-1.7Round 2FRIENDS244♠♦7+1-1
-1.7Round 8DAISY CHAIN213♠♦4-1+2
-1.8Round 5LUNDBERG103♠♣K-1+1
-1.9Round 5LUNDBERG113NT♦8+2+0
-2.0Round 1LUTZ34♣♦A-2+5
-2.0Round 1LUTZ132♣♣6+1+1
-2.3Round 4BERNAL262♣♠A+3+0
-2.4Round 4BERNAL164♥♣A-1-6
-2.6Round 6FRENCH CONNECTION213♣♦4-1-4
-2.7Round 1LUTZ115♦♣Q-1+6
-2.9Round 5LUNDBERG32♠♣9+1+0
-3.0Round 6FRENCH CONNECTION243♥♣Q=-6
-3.1Round 5LUNDBERG24♥♦4-1-8
-3.1Round 7GOLDBERG144♦♥7-2+0
-3.2Round 8DAISY CHAIN232NT♦T=+10
-3.3Round 8DAISY CHAIN183NT♠5-2-6
-3.3Round 8DAISY CHAIN193♦♦J=-6
-3.4Round 6FRENCH CONNECTION203NT♥2+1+0
-3.5Round 8DAISY CHAIN225♦♠A=+0
-3.6Round 5LUNDBERG85♥♠5+1-11
-3.8Round 6FRENCH CONNECTION153NT♠J-3-6
-4.0Round 1LUTZ53NT♥6+1+1
-4.2Round 4BERNAL224♥♦Q+3-17
-4.4Round 2FRIENDS272♣♦7+2-8
-4.5Round 8DAISY CHAIN174♠♥A=-3
-4.7Round 7GOLDBERG123NT♥J=-7
-4.9Round 3CROATIA43NT♠4-1-12
-5.5Round 4BERNAL204♠♦A-1+1
-6.2Round 3CROATIA143NT♣7-1-14
-6.2Round 5LUNDBERG74♥♦3+1+13
-6.6Round 1LUTZ23NT♠2-1-10
-7.0Round 8DAISY CHAIN163NT♠K=+0
-7.3Round 4BERNAL244♥♣3-1-14
-8.5Round 8DAISY CHAIN255♣♠A+1-10
-9.1Round 4BERNAL274♠x♦A-2-12
-10.5Round 4BERNAL283NT♠7+1-11
-11.9Round 5LUNDBERG64♥♣2-1-13