LIAO Zhengjiang · CHINA1

30rank
+69.9Butler · 84 bds
+0.83per board
±4.6swing
-0.19vs par /bd · #302/488
+0.82adjusted /bd
Butler per round: -2.5 17.1 30.1 -3 4 24.2by round

vs par split: bidding -0.11 · play -0.08

Strength of schedule: opponents averaged -0.01/bd (an average draw) → opponent-adjusted +0.82/bd

Card play — on target: opening leads 94.7% #26 of 488 · declarer play 85.2% #67 of 488 · defence 90.6% #139 of 488

Bidding activity — not a pass: 49.2% #27 of 488 (125/254)

Card play by contract type — on target
vs NTvs a suit
Opening leads100.0% (3)93.8% (16)
Declarer play50.0% (4)91.3% (23)
Defence75.0% (8)95.8% (24)

Opening leads by suit led: ♠ 100.0% (7) · ♥ 80.0% (5) · ♦ 100.0% (2) · ♣ 100.0% (5)

vs par by strain: NT +0.06 (18) · a suit -0.26 (66)

vs par by level: part-score -0.03 (30) · game +0.44 (45) · slam -3.89 (9)

By role: declaring +0.48/bd (-2.83 vs par · 52) · defending +1.41/bd (+4.09 vs par · 32)

By vulnerability: vulnerable +0.46/bd (-1.19 vs par · 42) · not vulnerable +1.21/bd (+0.81 vs par · 42)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1Z.XieP.Zatorski – K.DufratClosed14-2.5-0.18-2.79
Round 2Z.XieJ.Ding – L.HuClosed14+17.1+1.22+0.29
Round 4Z.XieA.Gandoglia – V.DalpozzoOpen14+30.1+2.15+1.50
Round 5Z.XieM.Gamble – K.FungClosed14-3.0-0.21-1.07
Round 6Z.XieL.De Wijs – G.YettickOpen14+4.0+0.29-1.29
Round 8Z.XieK.Bogo – R.SivertsvikOpen14+24.2+1.73+2.21

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
+13.5Round 5EDAMAME45♦x♠7-4+10
+9.2Round 2CHINA2206♠♥T=+13
+8.8Round 4LIVIA184♠♣Q-1+12
+8.3Round 6YETTICK193NT♠9-1+10
+8.2Round 2CHINA2176♥♦4=+0
+7.2Round 4LIVIA265♣x♠K-2+0
+7.0Round 4LIVIA243♣x♠7-2+5
+6.6Round 1EDMONDS84♥♣A=+8
+6.4Round 8POLAR FORMOSA204♣♠3-3+4
+6.2Round 8POLAR FORMOSA156♠♣6=+0
+6.0Round 8POLAR FORMOSA194♠♥A=+0
+5.9Round 2CHINA2183NT♦T-1+6
+5.7Round 4LIVIA196♣♠K+1-13
+5.3Round 4LIVIA161NTx♦Q=+7
+5.3Round 6YETTICK224♥♣9-1+5
+5.0Round 2CHINA2236♦♠2+1-13
+4.6Round 8POLAR FORMOSA274♠♣T-3+6
+4.3Round 2CHINA2244♣♥K=+1
+4.3Round 5EDAMAME142♦♥J-2+5
+4.0Round 2CHINA2223♠♥T+2+13
+3.5Round 1EDMONDS136♦♥A+1-13
+3.5Round 6YETTICK182♠♦9+1+0
+3.4Round 8POLAR FORMOSA284♠♥Q-2+11
+2.9Round 2CHINA2284♥♦K+1+0
+2.8Round 6YETTICK174♥♦K=+3
+2.8Round 8POLAR FORMOSA176NT♥6=+0
+2.6Round 6YETTICK152♥♦5=+5
+2.5Round 4LIVIA283♠♣A-1+5
+2.2Round 1EDMONDS124♥♣A+1+0
+2.2Round 4LIVIA202NT♠5-2+2
+2.2Round 4LIVIA274♣♦A-1+9
+2.0Round 5EDAMAME123NT♠7-2+0
+2.0Round 6YETTICK213♥♠Q=+0
+1.9Round 6YETTICK264♠♦6=+0
+1.9Round 6YETTICK273NT♠6+2+0
+1.7Round 2CHINA2152♥♦K+1+0
+1.7Round 5EDAMAME13♥♦A-1+4
+1.6Round 1EDMONDS43♠♦A=+0
+1.6Round 4LIVIA154♠♣J+1+0
+1.2Round 8POLAR FORMOSA263♥♠K-2+3
+1.1Round 5EDAMAME135♣♥J=-13
+1.0Round 1EDMONDS64♥♣A=+0
+0.9Round 1EDMONDS112♠♥K=+7
+0.9Round 2CHINA2274♥♣3+1+0
+0.9Round 5EDAMAME23NT♦6=+0
+0.6Round 1EDMONDS34♠♣T=+0
+0.5Round 8POLAR FORMOSA232♠♥Q=+9
+0.5Round 8POLAR FORMOSA253NT♦5+2+0
+0.3Round 1EDMONDS14♥♠7+3-10
+0.3Round 2CHINA2193NT♠2-1+10
+0.3Round 6YETTICK164♥♦6=+0
+0.1Round 5EDAMAME34♠♥A=+13
+0.1Round 5EDAMAME114♠♥3=+0
+0.1Round 6YETTICK285♠♥5=-11
+0.1Round 8POLAR FORMOSA212♠♣T=-1
-0.2Round 4LIVIA252♥♣J-1+1
-0.2Round 5EDAMAME91NT♥Q+1-7
-0.2Round 6YETTICK254♠♣3+1+0
-0.3Round 8POLAR FORMOSA224♠♥K+2+11
-0.5Round 8POLAR FORMOSA183♠♦A+1-6
-0.6Round 1EDMONDS144♥♣T=+1
-0.8Round 1EDMONDS104♥♠6+1+0
-0.9Round 5EDAMAME53♥♠A-1-5
-1.1Round 4LIVIA234♠♥T-1-6
-1.3Round 1EDMONDS93♠♥A+1-6
-1.7Round 8POLAR FORMOSA164♠♥9+1-1
-2.2Round 2CHINA2253NT♣6-1+0
-2.5Round 4LIVIA173NT♠8=+1
-2.7Round 4LIVIA212NT♠7-4-2
-4.0Round 1EDMONDS52♦♦4-1-6
-5.0Round 8POLAR FORMOSA243NT♣5-1-5
-5.8Round 1EDMONDS23♠♥A+3-11
-5.8Round 5EDAMAME66♦x♦2-1-11
-5.9Round 4LIVIA224♥♦Q=+0
-5.9Round 5EDAMAME72♠♦3+2-14
-6.1Round 5EDAMAME103NT♣A=+1
-6.7Round 1EDMONDS74♠x♦A-1-9
-7.1Round 2CHINA2214♥♦A=-3
-7.4Round 6YETTICK244♠♥Q-1-8
-7.7Round 2CHINA2163♥x♣6-2-11
-7.8Round 5EDAMAME86♣♥T=+2
-8.3Round 2CHINA2263NTx♥7-2-12
-8.4Round 6YETTICK233♣x♥J-2-12
-8.7Round 6YETTICK203NT♣9=-10