ZOCHOWSKA Joanna · ZIMMERMANN

350rank
-9.4Butler · 50 bds
-0.19per board
±3.7swing
+0.62vs par /bd · #78/518
-0.41adjusted /bd
Butler per round: -13 -14.4 5.9 2.5 9.6by round

vs par split: bidding +0.36 · play +0.26

Strength of schedule: opponents averaged -0.22/bd (an easy draw) → opponent-adjusted -0.41/bd

Card play — on target: opening leads 75.0% #353 of 518 · declarer play 85.7% #69 of 517 · defence 92.3% #23 of 518

Card play by contract type — on target
vs NTvs a suit
Opening leads50.0% (4)83.3% (12)
Declarer play100.0% (2)80.0% (5)
Defence100.0% (6)90.0% (20)

Opening leads by suit led: ♠ 60.0% (5) · ♥ 100.0% (4) · ♦ 50.0% (4) · ♣ 100.0% (3)

vs par by strain: NT +0.27 (11) · a suit +0.72 (39)

vs par by level: part-score +1.30 (20) · game +0.17 (30)

By role: declaring -0.12/bd (-0.83 vs par · 24) · defending -0.25/bd (+1.96 vs par · 26)

By vulnerability: vulnerable +0.17/bd (+1.39 vs par · 26) · not vulnerable -0.57/bd (-0.21 vs par · 24)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1P.ZimmermannX.Cao – Y.ZhengClosed10-13.0-1.30-3.00
Round 2P.ZimmermannD.Benner – A.CrystalOpen10-14.4-1.44-1.60
Round 4P.ZimmermannM.Cole – I.RotaruClosed10+5.9+0.59+2.80
Round 6P.ZimmermannD.Lu – Y.LuOpen10+2.5+0.25+1.50
Round 10P.ZimmermannT.Teramoto – M.SatoOpen10+9.6+0.96+3.40

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
+9.9Round 103ST244♠♣6+1+7
+9.0Round 6LU DONG24♥♣9-1+10
+5.5Round 4FIZZ133NT♥4=+10
+4.8Round 2BENNER114♠♥9-1+8
+4.4Round 4FIZZ203♥♣10-1+6
+4.0Round 6LU DONG13NT♠3+1+8
+4.0Round 103ST265♣♠3-2+7
+3.8Round 2BENNER124♠♥J=+10
+3.4Round 4FIZZ153NT♠2-1+4
+2.3Round 103ST303♠♣3-2+8
+2.2Round 1CHINA XHJT135♦♥A=-11
+1.9Round 1CHINA XHJT163NT♣J+1+0
+1.9Round 6LU DONG92♠♥5=+5
+1.7Round 103ST234♥♠2-1+12
+1.2Round 1CHINA XHJT112♣♥A-1+4
+1.2Round 103ST223♥♣A=+0
+1.0Round 1CHINA XHJT1104♦♠A-1-1
+0.7Round 2BENNER134♠♣6+1+13
+0.7Round 2BENNER163NT♠5+1+0
+0.5Round 4FIZZ193♥♣A+1+8
+0.4Round 6LU DONG82♠♣3+2-6
+0.3Round 2BENNER182♦♥K-1+1
+0.1Round 103ST213♠♠10-2-1
+0.0Round 4FIZZ113♣♥Q-2-1
-0.3Round 1CHINA XHJT144♠♣3+1+0
-0.4Round 2BENNER204♥♠7+1+0
-0.7Round 103ST293♦♠2-1+1
-0.8Round 6LU DONG55♥x♦K-3+5
-0.8Round 6LU DONG64♠♦3=+1
-0.9Round 6LU DONG34♥♠3+3-10
-1.0Round 1CHINA XHJT123NT♦4+1+0
-1.0Round 4FIZZ123♠♥A+1-1
-1.5Round 4FIZZ144♦♥4-1-4
-1.6Round 4FIZZ163♠♣A-1+11
-1.6Round 4FIZZ183♣♥K-1-3
-1.6Round 6LU DONG103♦♦Q=+0
-1.8Round 103ST272NT♦2+2+6
-2.2Round 4FIZZ173NT♣2+3-2
-2.3Round 6LU DONG43NT♠6+1+0
-2.7Round 103ST254♠♣2+1-1
-3.0Round 1CHINA XHJT154♠♥Q-1-5
-3.2Round 2BENNER145♣♥K+1-14
-4.2Round 2BENNER153NT♠Q-1-16
-4.4Round 103ST284♥♦A-1-5
-4.6Round 1CHINA XHJT171NTx♠8=-7
-5.0Round 1CHINA XHJT185♦♣Q-1-10
-5.4Round 1CHINA XHJT194♦♣9=+0
-6.4Round 2BENNER194♥x♦8-2-5
-6.4Round 6LU DONG75♣♠8=+2
-10.5Round 2BENNER174♥x♦6=-13