ZHENG Zuanpei · SHENZHEN

241rank
-4.5Butler · 42 bds
-0.11per board
±3.2swing
+1.29vs par /bd · #77/399
-0.03adjusted /bd
Butler per round: -6.7 -10.7 -9.3 0.8 2.3 19.1by round

vs par split: bidding +1.12 · play +0.17

Strength of schedule: opponents averaged +0.07/bd (a tough draw) → opponent-adjusted -0.03/bd

Card play — on target: opening leads 85.7% #127 of 398 · declarer play 100.0% #1 of 398 · defence 90.9% #77 of 399

Card play by contract type — on target
vs NTvs a suit
Opening leads100.0% (1)84.6% (13)
Declarer play100.0% (2)100.0% (5)
Defence100.0% (3)89.5% (19)

Opening leads by suit led: ♠ 100.0% (1) · ♥ 100.0% (3) · ♦ 75.0% (4) · ♣ 83.3% (6)

vs par by strain: NT -1.14 (14) · a suit +2.50 (28)

vs par by level: part-score +0.54 (13) · game +1.78 (27) · slam -0.50 (2)

By role: declaring -0.35/bd (-2.00 vs par · 20) · defending +0.12/bd (+4.27 vs par · 22)

By vulnerability: vulnerable -0.10/bd (+0.60 vs par · 20) · not vulnerable -0.11/bd (+1.91 vs par · 22)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1J.ShenZ.Zu – Y.HuClosed7-6.7-0.96+0.43
Round 2J.ShenA.Gromov – V.GromovaOpen7-10.7-1.53-1.86
Round 3J.ShenR.Gunev – D.PopovaClosed7-9.3-1.33-1.86
Round 6J.ShenY.Atabey – U.SemerciClosed7+0.8+0.11+2.57
Round 7J.ShenH.Lam – P.LingClosed7+2.3+0.33+4.29
Round 8J.ShenL.Chen – Y.WangClosed7+19.1+2.73+4.14

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
+6.7Round 8ZHEJIANG JINJIANG BRIDGE CLUB233NT♠K-3+13
+5.6Round 2BRINK144NT♣Q=-1
+4.6Round 8ZHEJIANG JINJIANG BRIDGE CLUB274♠♦K-1+5
+4.2Round 7MASTER MINDS214♠♥A-1+6
+3.4Round 6ATABEY114♠♦2+3+10
+3.0Round 7MASTER MINDS185♠♣A+2+17
+2.8Round 1WUHAN33NT♠3+1+4
+2.7Round 6ATABEY144♥♦K-1+8
+2.7Round 8ZHEJIANG JINJIANG BRIDGE CLUB222♣x♥5-1+5
+2.2Round 7MASTER MINDS202♠♦J=+0
+2.2Round 8ZHEJIANG JINJIANG BRIDGE CLUB243NT♥3+2+0
+2.1Round 8ZHEJIANG JINJIANG BRIDGE CLUB255♠x♥3-2+0
+1.7Round 1WUHAN24♥♠5+3+2
+1.7Round 6ATABEY84♥♣6-1+10
+1.1Round 7MASTER MINDS153♥♦K-1+2
+1.0Round 3HAUGE215♠♣A=+0
+0.7Round 8ZHEJIANG JINJIANG BRIDGE CLUB263♣♦J-1+5
+0.4Round 1WUHAN41NT♥A=+11
+0.4Round 3HAUGE203NT♠K+1-1
+0.3Round 2BRINK133NT♠3=+0
+0.3Round 6ATABEY94♥♠A+1+0
+0.1Round 3HAUGE194♥♣2+1+0
+0.1Round 8ZHEJIANG JINJIANG BRIDGE CLUB284♥♣K-2+1
-0.1Round 6ATABEY104♥♣3=+1
-0.4Round 3HAUGE173♦♣A-1+5
-0.6Round 6ATABEY131NT♥K+2-10
-0.9Round 3HAUGE181NT♠2+2-6
-1.4Round 7MASTER MINDS175♦♥A+1+11
-1.6Round 1WUHAN64♣♦K-1+1
-1.8Round 2BRINK86♠x♥2-3+0
-1.9Round 3HAUGE161NT♠7+1-1
-2.1Round 1WUHAN53NT♠Q-2-5
-2.1Round 2BRINK113♦♣K=+1
-2.2Round 1WUHAN74♥♦J+1+0
-2.2Round 7MASTER MINDS193♥♠6-1+0
-2.3Round 2BRINK103NT♦8=+0
-4.6Round 7MASTER MINDS163♠♣4-1-6
-5.2Round 2BRINK93NT♠A-3-10
-5.2Round 2BRINK124♠♠5=-3
-5.7Round 1WUHAN13NT♠7-1-10
-6.6Round 6ATABEY126♥♣2=-1
-7.6Round 3HAUGE154♥x♣A=-10