TANG Qing · SX MERCURY

25rank
+8.4Butler · 50 bds
+0.17per board
±5.5swing
+0.62vs par /bd · #14/51
+0.13adjusted /bd
Butler per round: 18.4 -7.1 -11.2 7.3 1by round

vs par split: bidding +0.04 · play +0.53

Strength of schedule: opponents averaged -0.04/bd (an average draw) → opponent-adjusted +0.13/bd

Card play — on target: opening leads 71.4% #28 of 51 · declarer play 100.0% #1 of 51 · defence 84.8% #19 of 51

Card play by contract type — on target
vs NTvs a suit
Opening leads80.0% (5)66.7% (9)
Declarer play100.0% (2)100.0% (4)
Defence55.6% (9)95.8% (24)

Opening leads by suit led: ♠ 50.0% (2) · ♥ 50.0% (2) · ♦ 60.0% (5) · ♣ 100.0% (5)

vs par by strain: NT -1.06 (16) · a suit +1.36 (33)

vs par by level: part-score +1.28 (18) · game +0.20 (25) · slam +0.00 (6)

By role: declaring -0.74/bd (-2.75 vs par · 16) · defending +0.59/bd (+2.21 vs par · 34)

By vulnerability: vulnerable +0.39/bd (+1.08 vs par · 24) · not vulnerable -0.04/bd (+0.19 vs par · 26)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1Y.JiangY.Chen – S.MaOpen10+18.4+1.84+3.70
Round 2Y.JiangW.Yu – F.YangOpen10-7.1-0.71-0.30
Round 5Y.JiangD.Ocylok – J.KokotClosed10-11.2-1.12-2.60
Round 7Y.JiangP.Wang – Y.ZhaoOpen10+7.3+0.73+2.80
Round 9Y.JiangA.Dhir – M.WeingartenClosed10+1.0+0.10-0.50

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
+13.3Round 1SX NEBULA44♠♣4-3+16
+13.0Round 9USA125♦♣A+1+13
+10.7Round 9USA165♥x♠A+1+6
+9.1Round 7SX SATURN183♥x♣3-3+8
+8.3Round 1SX NEBULA86♥x♠2-2+12
+7.1Round 1SX NEBULA63NT♣8+1+0
+6.3Round 7SX SATURN166♠♥Q+1+11
+5.9Round 2SX MARS194♠♦A-1+12
+5.3Round 1SX NEBULA73NT♠5=+0
+5.1Round 5POLAND223♠♥4-2+6
+5.1Round 5POLAND262♠♣3-1+6
+4.6Round 7SX SATURN173♥♣J-2+5
+4.3Round 2SX MARS203♦♥A-1+6
+3.0Round 1SX NEBULA53♦♥3-2+7
+3.0Round 5POLAND28Pass+3
+2.7Round 7SX SATURN113♣♥3-2+6
+2.3Round 9USA203NT♦8=+13
+2.0Round 1SX NEBULA12NT♥4=-1
+1.7Round 2SX MARS122♦♣A-3+0
+0.0Round 2SX MARS183NT♠Q+1+0
-0.3Round 2SX MARS111NT♠9-1+2
-0.3Round 7SX SATURN144♠♦7=+11
-0.4Round 5POLAND253NT♥3+2-1
-0.4Round 9USA113NT♣3=+1
-0.6Round 7SX SATURN202♠♣3=-1
-1.3Round 7SX SATURN153NT♦3+3-2
-1.4Round 5POLAND304♠♠10=+0
-1.6Round 2SX MARS134♥♠8+1+0
-1.6Round 9USA191NT♠A+1+0
-1.7Round 5POLAND234♠♣5-2-12
-2.1Round 1SX NEBULA22♥♦10+1+0
-2.1Round 9USA175♣x♠K-1-8
-2.3Round 1SX NEBULA36♠♣A+1+11
-2.4Round 5POLAND273♣♦6=-6
-2.6Round 1SX NEBULA94♥x♦K-1+5
-2.6Round 9USA144♠♦9-1-5
-2.7Round 2SX MARS173NT♠7+3-2
-3.1Round 2SX MARS155♥♠A=-6
-3.1Round 7SX SATURN121NT♦A+3-2
-4.1Round 9USA183♠♣Q=+0
-4.7Round 2SX MARS141NT♣2+1-1
-4.9Round 5POLAND213NT♥4+3-11
-5.0Round 7SX SATURN136♠♥J+1-8
-5.1Round 7SX SATURN194♥♥3=+0
-5.9Round 9USA153♥♠A+2-12
-6.0Round 5POLAND293NT♦7+2+0
-6.6Round 2SX MARS164♠♥2-1-14
-7.6Round 5POLAND245♥♠7+1-11
-8.3Round 9USA136NT♥10-2-13
-13.6Round 1SX NEBULA106♥♦A=-13