LUO Yufeng · GUIZHOU ZHENGYE

225rank
+18.2Butler · 110 bds
+0.17per board
±4.0swing
+0.49vs par /bd · #123/567
+0.10adjusted /bd
Butler per round: 3.5 -7.8 10.3 7.3 14.4 -9.3 -12.7 23.1 -6.3 -2 -2.3by round

vs par split: bidding -0.34 · play +0.86

Strength of schedule: opponents averaged -0.06/bd (an easy draw) → opponent-adjusted +0.10/bd

Card play — on target: opening leads 80.0% #285 of 567 · declarer play 91.7% #22 of 567 · defence 86.8% #129 of 567

Card play by contract type — on target
vs NTvs a suit
Opening leads55.6% (9)93.8% (16)
Declarer play100.0% (6)88.9% (18)
Defence81.2% (16)89.2% (37)

Opening leads by suit led: ♠ 66.7% (3) · ♥ 70.0% (10) · ♦ 100.0% (5) · ♣ 85.7% (7)

vs par by strain: NT -0.12 (33) · a suit +0.80 (76)

vs par by level: part-score +0.65 (49) · game +0.24 (59) · slam +11.00 (1)

By role: declaring +0.29/bd (-0.89 vs par · 56) · defending +0.04/bd (+1.93 vs par · 54)

By vulnerability: vulnerable +1.05/bd (+1.30 vs par · 53) · not vulnerable -0.66/bd (-0.26 vs par · 57)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1W.SongL.Lei – L.ZhouOpen10+3.5+0.35+1.00
Round 2T.GaoI.Bareket – A.LengyOpen10-7.8-0.78+1.10
Round 3W.SongS.Haque – M.IslamOpen10+10.3+1.03+0.00
Round 4T.GaoC.Lee – J.KimClosed10+7.3+0.73+0.60
Round 5W.SongA.Comella – S.SabbatiniClosed10+14.4+1.44+2.10
Round 6W.SongJ.Liu – Y.CaiOpen10-9.3-0.93-2.60
Round 8W.SongD.Yu – R.LiOpen10-12.7-1.27-1.20
Round 10W.SongY.Gu – Y.WuClosed10+23.1+2.31+4.80
Round 11W.SongK.Mccallum – S.DinkinOpen10-6.3-0.63-0.20
Round 13W.SongB.Satyanarayana – K.NadarOpen10-2.0-0.20-1.60
Round 14W.SongB.Bramley – K.WoolseyClosed10-2.3-0.23+1.40

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
+10.5Round 6WUHAN DONGFANG253NT♦2=+10
+9.7Round 10SHANGHAI GUHUA64♠♣10=+10
+9.5Round 5ITALY Seniors204♠♦10=+10
+8.0Round 1JILIN BA44♥♦9=+10
+7.3Round 1JILIN BA95♦x♣K-2+11
+6.8Round 2ISRAEL Open193NT♠3=+10
+6.8Round 10SHANGHAI GUHUA23♠♥A+1+8
+6.6Round 10SHANGHAI GUHUA72NT♦8+1+10
+5.9Round 5ITALY Seniors122♠♠8-2+7
+5.7Round 4NEWB43NT♠J+2+0
+5.7Round 13FORMIDABLES54♥♠8-1-2
+5.3Round 11USA 1 Women142♠♦Q-1+5
+5.3Round 11USA 1 Women203♠♦5-1+5
+5.2Round 3BANGLADESH294♠♦2=+10
+5.1Round 4NEWB92♠♦Q-2+0
+4.7Round 10SHANGHAI GUHUA35♣♥A-1+10
+4.4Round 5ITALY Seniors133NT♦Q=-1
+4.4Round 5ITALY Seniors174♠♣5-1+5
+4.2Round 3BANGLADESH283NT♦Q+4+2
+3.7Round 8YUNNAN192NT♥Q-1+10
+3.6Round 4NEWB24♥♦A+1+6
+3.6Round 13FORMIDABLES43♥♠2-1+5
+3.5Round 13FORMIDABLES14♥♥3=+0
+3.5Round 14USA 1 Seniors133♠♥5-1+5
+3.3Round 2ISRAEL Open154♥♦10=+6
+3.2Round 11USA 1 Women163♥♠9-1+5
+2.8Round 2ISRAEL Open182♥♥2=+1
+2.8Round 3BANGLADESH232♦♣2=-1
+2.8Round 3BANGLADESH253♥♦A+1+7
+2.7Round 3BANGLADESH214♥♠K=-1
+2.5Round 5ITALY Seniors142NT♥8-1-3
+2.4Round 14USA 1 Seniors193♥♣2-1+4
+2.1Round 3BANGLADESH223NT♦6-2+6
+2.0Round 6WUHAN DONGFANG275♠♦2-1+8
+1.7Round 5ITALY Seniors183NT♠9-1+6
+1.7Round 14USA 1 Seniors174♠♦10+1+0
+1.5Round 1JILIN BA24♦♥A=+0
+1.5Round 13FORMIDABLES103NT♦J-1+6
+1.5Round 14USA 1 Seniors124♠♠10+1+1
+1.5Round 14USA 1 Seniors164♠♥A-1+5
+1.4Round 10SHANGHAI GUHUA9Pass-3
+1.3Round 6WUHAN DONGFANG213NT♥J-2-5
+1.3Round 10SHANGHAI GUHUA102♠♣Q=+0
+0.9Round 4NEWB62♥♠7-1+0
+0.9Round 6WUHAN DONGFANG243♦♦2=+0
+0.9Round 13FORMIDABLES93NT♠9+2+2
+0.8Round 11USA 1 Women183♠♣2=+1
+0.7Round 4NEWB73♠♣K=+0
+0.6Round 1JILIN BA13♠♣4+1+6
+0.6Round 2ISRAEL Open131NT♦Q=-1
+0.6Round 4NEWB34♥♠K+2+11
+0.6Round 11USA 1 Women123NT♣3=-1
+0.6Round 13FORMIDABLES63♥♣6+1-6
+0.5Round 1JILIN BA71NT♥5+1+0
+0.5Round 14USA 1 Seniors141NT♣9=-1
+0.4Round 6WUHAN DONGFANG262♦♥3=+1
+0.3Round 3BANGLADESH304♥♠A+1+0
+0.3Round 4NEWB14♥♠K+1+0
+0.2Round 6WUHAN DONGFANG302♥♦2+2-6
+0.0Round 8YUNNAN114♠♥A+1+0
-0.0Round 8YUNNAN143NT♣6+2+0
-0.3Round 8YUNNAN134♦♠A=+0
-0.5Round 8YUNNAN153NT♣K+1+0
-0.6Round 5ITALY Seniors163♦♥K+1+7
-0.8Round 2ISRAEL Open114♥x♣A-2+3
-1.0Round 10SHANGHAI GUHUA43♠♠3-1+1
-1.0Round 10SHANGHAI GUHUA86NT♦3+1+11
-1.1Round 3BANGLADESH264♥♦6+2-13
-1.3Round 1JILIN BA33♥♦K=+0
-1.4Round 2ISRAEL Open143♦♥4+1-6
-1.5Round 11USA 1 Women173♠♥K=+6
-1.6Round 4NEWB101NT♠5+1-1
-1.7Round 4NEWB83♥♦K-1-4
-1.9Round 8YUNNAN175♦♥6-2-5
-1.9Round 14USA 1 Seniors113NT♣8=+1
-2.0Round 13FORMIDABLES74♠♣4+1+0
-2.1Round 1JILIN BA63♥♦6=+7
-2.1Round 2ISRAEL Open123♠♥Q=+8
-2.1Round 10SHANGHAI GUHUA12NT♦10-1+1
-2.2Round 1JILIN BA52♣♣4+3-7
-2.4Round 5ITALY Seniors153♥♠A-1+2
-2.4Round 14USA 1 Seniors203♥♦A-1+1
-2.7Round 3BANGLADESH274♥♠2=-3
-3.1Round 1JILIN BA84♠♥4-1-10
-3.2Round 8YUNNAN184♠♣K+1+0
-3.3Round 10SHANGHAI GUHUA53NTx♣4-1+0
-3.4Round 8YUNNAN202♣♥2=+1
-3.5Round 6WUHAN DONGFANG292♦x♥3-3-12
-3.5Round 8YUNNAN163NT♥9-2-7
-3.5Round 14USA 1 Seniors184♥♦4+1-4
-3.6Round 8YUNNAN124♥♦K+2-11
-3.8Round 2ISRAEL Open163NT♣6=-7
-4.6Round 11USA 1 Women133NT♠4=-10
-4.7Round 13FORMIDABLES83NT♠6+3-10
-4.8Round 5ITALY Seniors114♠♠6-1-5
-4.8Round 6WUHAN DONGFANG222♠♦2-3-4
-5.1Round 11USA 1 Women115♦♣4-1-4
-5.1Round 11USA 1 Women154♠♣Q=+1
-5.2Round 11USA 1 Women194♣♥K=-10
-5.5Round 13FORMIDABLES23NT♠Q-2-12
-5.6Round 13FORMIDABLES33NT♥Q=+1
-5.6Round 14USA 1 Seniors154♠♥4-1+2
-5.7Round 1JILIN BA102♥♣10+1-7
-6.0Round 3BANGLADESH244♦♥J+1-7
-6.2Round 5ITALY Seniors194♠♥6=-7
-6.3Round 2ISRAEL Open174♠♥A=+0
-6.3Round 4NEWB53♠♥A+1-6
-6.7Round 6WUHAN DONGFANG233NT♥5-2-8
-6.9Round 2ISRAEL Open203NT♥6=-3
-9.6Round 6WUHAN DONGFANG283NT♥2=-10