DONG Yongling · CHINA ENJOY

150rank
-12.6Butler · 56 bds
-0.23per board
±4.4swing
+0.20vs par /bd · #76/180
-0.34adjusted /bd
Butler per round: -21 5.2 14.2 -11by round

vs par split: bidding +0.09 · play +0.11

Strength of schedule: opponents averaged -0.11/bd (an easy draw) → opponent-adjusted -0.34/bd

Card play — on target: opening leads 78.9% #115 of 180 · declarer play 69.2% #140 of 180 · defence 81.8% #128 of 180

Bidding activity — not a pass: 41.5% #125 of 180 (59/142)

Card play by contract type — on target
vs NTvs a suit
Opening leads66.7% (3)81.2% (16)
Declarer play100.0% (2)63.6% (11)
Defence100.0% (5)78.6% (28)

Opening leads by suit led: ♠ 100.0% (6) · ♥ 100.0% (2) · ♦ 83.3% (6) · ♣ 40.0% (5)

vs par by strain: NT +0.50 (8) · a suit +0.15 (48)

vs par by level: part-score -0.25 (28) · game +1.30 (23) · slam -2.40 (5)

By role: declaring -0.44/bd (-2.56 vs par · 23) · defending -0.08/bd (+2.12 vs par · 33)

By vulnerability: vulnerable -0.16/bd (+0.29 vs par · 28) · not vulnerable -0.29/bd (+0.11 vs par · 28)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2R.LinI.Grzejdziak – S.GrzejdziakOpen14-21.0-1.50-2.79
Round 4R.LinS.George – M.HeshmatOpen14+5.2+0.37+2.93
Round 6R.LinS.Rojko – S.RothmullerClosed14+14.2+1.01+1.64
Round 8R.LinT.Forrester – P.CrouchClosed14-11.0-0.79-1.00

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
+12.0Round 4RATRUT166♣♥K-1+17
+8.4Round 8WOLFSON266♣♥A=-2
+6.4Round 4RATRUT175♣♣2+2+14
+6.4Round 6TEAM RUSH203♠♣K+1+1
+5.4Round 4RATRUT245♠♦Q+1+11
+4.1Round 2SV BRIDGE CLUB183♠♣A-1+4
+3.8Round 6TEAM RUSH163♣♠5+1+0
+3.5Round 4RATRUT202♠♣9+1+10
+3.0Round 6TEAM RUSH153♥♠Q+1+6
+2.8Round 2SV BRIDGE CLUB192♥♦A+1+0
+2.8Round 6TEAM RUSH254♠♥2+1+6
+2.7Round 8WOLFSON233NT♠9-1+0
+2.5Round 6TEAM RUSH263♣♠6-1-5
+2.2Round 2SV BRIDGE CLUB212♠♦6=+6
+2.2Round 8WOLFSON274♠♦6-1+10
+2.0Round 8WOLFSON215♥♠A+1+8
+1.7Round 2SV BRIDGE CLUB166♠x♥8-4-4
+1.7Round 6TEAM RUSH233♣♦2+2+10
+1.4Round 6TEAM RUSH244♥♣A-1+1
+1.4Round 8WOLFSON241NT♥5+1+1
+1.1Round 6TEAM RUSH214♠♣9-1+5
+0.8Round 8WOLFSON163♠♣T=+1
+0.6Round 8WOLFSON203NT♠3-2+3
+0.5Round 6TEAM RUSH184♥♠6+2+11
+0.3Round 2SV BRIDGE CLUB282♠♣6-1+4
+0.2Round 4RATRUT252♣♣6-1+2
+0.1Round 4RATRUT273♠♥A-1-2
-0.3Round 2SV BRIDGE CLUB244♥♦7+1+0
-0.3Round 8WOLFSON184♠♦6+3-12
-0.4Round 2SV BRIDGE CLUB224♠♠4=-1
-0.6Round 6TEAM RUSH274♥♠7=+0
-0.7Round 4RATRUT182NT♣T+1+0
-0.8Round 2SV BRIDGE CLUB233♥♣6-1+1
-0.8Round 6TEAM RUSH222♦♠K=-5
-0.8Round 8WOLFSON284♥♦A+2-3
-0.9Round 6TEAM RUSH192♥♠6-2+0
-0.9Round 8WOLFSON254♥♦J+1+0
-1.0Round 8WOLFSON172♠♦A+1-1
-1.1Round 4RATRUT233NT♠6+2+13
-1.4Round 6TEAM RUSH171NT♣4-2+0
-1.7Round 2SV BRIDGE CLUB251♥♠K-1-1
-1.7Round 4RATRUT284♥♣7+2-2
-1.8Round 4RATRUT213♦♠5+1+0
-2.0Round 2SV BRIDGE CLUB202♠♥7+1-7
-2.0Round 4RATRUT153♠♣7-2-2
-2.3Round 8WOLFSON193NT♥3=+0
-2.6Round 2SV BRIDGE CLUB152♠♣J=-5
-4.3Round 4RATRUT262♠♦A=-6
-5.0Round 2SV BRIDGE CLUB175♠♦6+1-11
-5.0Round 4RATRUT192♣♥A=-6
-5.3Round 6TEAM RUSH284♥♦6=-7
-5.8Round 4RATRUT224♠♥A-1-8
-9.3Round 2SV BRIDGE CLUB274♠x♦Q-3-8
-10.0Round 2SV BRIDGE CLUB267♥♣6-1-17
-10.2Round 8WOLFSON156♠x♥6=-6
-13.6Round 8WOLFSON222NTxx♥A-3-13