QIU Shi · CHINA RDFZ1

32rank
+3.3Butler · 50 bds
+0.07per board
±4.7swing
-0.30vs par /bd · #37/61
+0.49adjusted /bd
Butler per round: 22.8 -8.6 2.8 -2.9 -10.8by round

vs par split: bidding -0.20 · play -0.10

Strength of schedule: opponents averaged +0.42/bd (a tough draw) → opponent-adjusted +0.49/bd

Card play — on target: opening leads 76.9% #32 of 60 · declarer play 68.4% #39 of 60 · defence 90.5% #6 of 61

Card play by contract type — on target
vs NTvs a suit
Opening leads66.7% (3)80.0% (10)
Declarer play66.7% (6)69.2% (13)
Defence100.0% (5)87.5% (16)

Opening leads by suit led: ♠ 100.0% (1) · ♥ 100.0% (4) · ♦ 33.3% (3) · ♣ 80.0% (5)

vs par by strain: NT -1.94 (16) · a suit +0.47 (34)

vs par by level: part-score +0.83 (23) · game -2.30 (20) · slam +1.71 (7)

By role: declaring +0.30/bd (-3.14 vs par · 29) · defending -0.26/bd (+3.62 vs par · 21)

By vulnerability: vulnerable -0.60/bd (-0.22 vs par · 27) · not vulnerable +0.84/bd (-0.39 vs par · 23)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1H.YuJ.Wang – Y.SongOpen10+22.8+2.28-0.40
Round 2H.YuR.Wang – Y.LiuClosed10-8.6-0.86-1.70
Round 4H.YuY.Wang – Y.ShaoOpen10+2.8+0.28+3.40
Round 6H.YuL.Cheng – R.MaoClosed10-2.9-0.29-0.10
Round 7H.YuT.Kielbasa – P.HulanickiClosed10-10.8-1.08-2.70

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
+12.7Round 6SX XHEST296♣♥10=+0
+10.2Round 2SX XNWY116♥♣8-2+11
+9.8Round 7AZSUW AKADEMIABRYDZA16♥♣5=+0
+8.2Round 4SX HYSW84♠♥A+2+9
+6.9Round 1CHINA RDFZ223♠♣5+1+1
+4.6Round 2SX XNWY122NT♠5-1+6
+4.3Round 1CHINA RDFZ255♠x♥2-1-6
+4.1Round 7AZSUW AKADEMIABRYDZA33NT♠5+2+1
+3.8Round 1CHINA RDFZ233NT♠7+1+0
+3.1Round 1CHINA RDFZ283♥♣8-3+2
+3.0Round 4SX HYSW43♠♥K+2+10
+2.9Round 2SX XNWY144♠♣6=-1
+2.9Round 6SX XHEST224♠♦2+1+0
+2.9Round 6SX XHEST271NT♥J-2+0
+2.5Round 1CHINA RDFZ292♠♠8-1+5
+2.4Round 4SX HYSW93♥♦K-2+12
+2.0Round 1CHINA RDFZ2102NT♦7=+0
+2.0Round 7AZSUW AKADEMIABRYDZA46♦♥K-3+3
+1.6Round 1CHINA RDFZ213♦♥5-2+0
+1.5Round 4SX HYSW54♠♥2+1+0
+0.9Round 7AZSUW AKADEMIABRYDZA83NT♠10+3-11
+0.7Round 6SX XHEST243NT♠J+2-11
+0.6Round 1CHINA RDFZ242NT♥10-1-6
+0.3Round 1CHINA RDFZ263NT♥Q-2+6
+0.2Round 4SX HYSW61NT♦6=-2
-0.2Round 7AZSUW AKADEMIABRYDZA75♠♥Q+1+13
-0.5Round 7AZSUW AKADEMIABRYDZA63♠♣A+1-10
-1.5Round 2SX XNWY132♠♣K=+1
-1.5Round 4SX HYSW23♦♣5=+1
-1.6Round 6SX XHEST302♠♦8+3+6
-1.7Round 4SX HYSW71NT♦5+1+1
-1.8Round 4SX HYSW31NT♥4=+1
-1.8Round 6SX XHEST253NT♥J=+11
-2.1Round 7AZSUW AKADEMIABRYDZA23♥♦J-2+0
-2.3Round 1CHINA RDFZ273NT♣6-1-6
-2.6Round 2SX XNWY192♥x♠J-1-3
-2.7Round 6SX XHEST232♠♦K=+0
-2.9Round 2SX XNWY174♥♠3=+0
-3.1Round 6SX XHEST216♥♦9+1+11
-3.5Round 4SX HYSW104♠♥4+1+0
-3.7Round 2SX XNWY164♥♠A-1-6
-4.0Round 4SX HYSW13♦♣4-1+2
-4.5Round 6SX XHEST283♦♠3=-6
-4.9Round 2SX XNWY153NT♦K+3-11
-5.2Round 2SX XNWY205♠♣Q-1-12
-5.5Round 2SX XNWY183♠♣A-3-2
-8.1Round 7AZSUW AKADEMIABRYDZA53NT♠Q-1-10
-8.2Round 7AZSUW AKADEMIABRYDZA106♥♠A-1-13
-8.4Round 6SX XHEST264♠♣10-1-12
-8.5Round 7AZSUW AKADEMIABRYDZA97♥♣2=+0